修复验证码位数的bug，优化代码
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.gitignore
vendored
43
.gitignore
vendored
@ -1,24 +1,25 @@
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# Compiled class file
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*.class
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/target/
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!.mvn/wrapper/maven-wrapper.jar
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# Log file
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*.log
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### STS ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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# BlueJ files
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*.ctxt
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### IntelliJ IDEA ###
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.idea
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*.iws
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*.iml
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*.ipr
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# Mobile Tools for Java (J2ME)
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.mtj.tmp/
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# Package Files #
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*.jar
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*.war
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*.ear
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*.zip
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*.tar.gz
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*.rar
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# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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/bin
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/target
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### NetBeans ###
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/nbproject/private/
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/build/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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6
.idea/encodings.xml
Normal file
6
.idea/encodings.xml
Normal file
@ -0,0 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="Encoding">
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<file url="file://$PROJECT_DIR$" charset="UTF-8" />
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</component>
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</project>
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13
.idea/libraries/Maven__junit_junit_4_7.xml
Normal file
13
.idea/libraries/Maven__junit_junit_4_7.xml
Normal file
@ -0,0 +1,13 @@
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<component name="libraryTable">
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<library name="Maven: junit:junit:4.7">
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<CLASSES>
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<root url="jar://$USER_HOME$/.m2/repository/junit/junit/4.7/junit-4.7.jar!/" />
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</CLASSES>
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<JAVADOC>
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<root url="jar://$USER_HOME$/.m2/repository/junit/junit/4.7/junit-4.7-javadoc.jar!/" />
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</JAVADOC>
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<SOURCES>
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<root url="jar://$USER_HOME$/.m2/repository/junit/junit/4.7/junit-4.7-sources.jar!/" />
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</SOURCES>
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</library>
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</component>
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124
.idea/uiDesigner.xml
Normal file
124
.idea/uiDesigner.xml
Normal file
@ -0,0 +1,124 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="Palette2">
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<group name="Swing">
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<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
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</item>
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<item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
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</item>
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<item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
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</item>
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<item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
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<default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
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</item>
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<item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
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<initial-values>
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<property name="text" value="Button" />
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</initial-values>
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</item>
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<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="RadioButton" />
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</initial-values>
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</item>
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<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="CheckBox" />
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</initial-values>
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</item>
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<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="Label" />
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</initial-values>
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</item>
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<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</default-constraints>
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</item>
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<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</default-constraints>
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</item>
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<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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<preferred-size width="200" height="200" />
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</default-constraints>
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</item>
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<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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<preferred-size width="200" height="200" />
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</default-constraints>
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</item>
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<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
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</item>
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<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
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</item>
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<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
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<preferred-size width="-1" height="20" />
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</default-constraints>
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</item>
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<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
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</item>
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<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
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</item>
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</group>
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</component>
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</project>
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@ -5,10 +5,12 @@
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" scope="PROVIDED" name="Maven: javax.servlet:javax.servlet-api:3.1.0" level="project" />
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<orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.7" level="project" />
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</component>
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</module>
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161
pom.xml
161
pom.xml
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>EasyCaptcha</groupId>
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<artifactId>EasyCaptcha</artifactId>
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<version>1.1.0-RELEASE</version>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>6</source>
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<target>6</target>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<name>EasyCaptcha</name>
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<dependencies>
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<!-- j2ee环境 -->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>3.1.0</version>
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<scope>provided</scope>
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</dependency>
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</dependencies>
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<groupId>com.github.whvcse</groupId>
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<artifactId>EasyCaptcha</artifactId>
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<version>1.1.0-RELEASE</version>
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<packaging>jar</packaging>
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<name>EasyCaptcha</name>
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<description>Java web图形验证码，支持gif验证码。</description>
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<url>https://github.com/whvcse/EasyCaptcha</url>
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<licenses>
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<license>
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<name>The Apache Software License, Version 2.0</name>
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<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
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<distribution>repo</distribution>
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</license>
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</licenses>
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<parent>
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<groupId>org.sonatype.oss</groupId>
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<artifactId>oss-parent</artifactId>
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<version>7</version>
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</parent>
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<dependencies>
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<!-- j2ee环境 -->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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||||
<version>3.1.0</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.7</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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||||
<plugin>
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||||
<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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||||
<configuration>
|
||||
<source>6</source>
|
||||
<target>6</target>
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||||
</configuration>
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||||
</plugin>
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||||
</plugins>
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||||
</build>
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||||
|
||||
<scm>
|
||||
<url>https://github.com/whvcse/EasyCaptcha</url>
|
||||
<connection>scm:git:git@github.com:whvcse/EasyCaptcha</connection>
|
||||
<developerConnection>scm:git:git@github.com:whvcse/EasyCaptcha</developerConnection>
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||||
<tag>HEAD</tag>
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||||
</scm>
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||||
|
||||
<developers>
|
||||
<developer>
|
||||
<name>whvcse</name>
|
||||
<email>whvcse@foxmail.com</email>
|
||||
<url>https://github.com/whvcse</url>
|
||||
</developer>
|
||||
</developers>
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||||
|
||||
<distributionManagement>
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||||
<snapshotRepository>
|
||||
<id>oss</id>
|
||||
<name>OSS Snapshots Repository</name>
|
||||
<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
|
||||
</snapshotRepository>
|
||||
<repository>
|
||||
<id>oss</id>
|
||||
<name>OSS Staging Repository</name>
|
||||
<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
|
||||
</repository>
|
||||
</distributionManagement>
|
||||
|
||||
<profiles>
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||||
<profile>
|
||||
<id>release</id>
|
||||
<build>
|
||||
<plugins>
|
||||
<!-- Source -->
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
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||||
<artifactId>maven-source-plugin</artifactId>
|
||||
<version>2.2.1</version>
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||||
<executions>
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||||
<execution>
|
||||
<phase>package</phase>
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||||
<goals>
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||||
<goal>jar-no-fork</goal>
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||||
</goals>
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||||
</execution>
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||||
</executions>
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||||
</plugin>
|
||||
<!-- Javadoc -->
|
||||
<plugin>
|
||||
<groupId>org.apache.maven.plugins</groupId>
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||||
<artifactId>maven-javadoc-plugin</artifactId>
|
||||
<version>2.9.1</version>
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||||
<executions>
|
||||
<execution>
|
||||
<phase>package</phase>
|
||||
<goals>
|
||||
<goal>jar</goal>
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||||
</goals>
|
||||
</execution>
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||||
</executions>
|
||||
</plugin>
|
||||
<plugin>
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||||
<groupId>org.apache.maven.plugins</groupId>
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||||
<artifactId>maven-gpg-plugin</artifactId>
|
||||
<version>1.5</version>
|
||||
<executions>
|
||||
<execution>
|
||||
<id>sign-artifacts</id>
|
||||
<phase>verify</phase>
|
||||
<goals>
|
||||
<goal>sign</goal>
|
||||
</goals>
|
||||
</execution>
|
||||
</executions>
|
||||
</plugin>
|
||||
</plugins>
|
||||
</build>
|
||||
</profile>
|
||||
</profiles>
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||||
</project>
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||||
@ -5,100 +5,114 @@ import java.awt.Font;
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||||
import java.io.OutputStream;
|
||||
|
||||
/**
|
||||
* <p>
|
||||
* 验证码抽象类,暂时不支持中文
|
||||
* </p>
|
||||
*
|
||||
* @author: wuhongjun
|
||||
* @version:1.0
|
||||
* 验证码抽象类
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public abstract class Captcha extends Randoms {
|
||||
protected Font font = new Font("Verdana", Font.ITALIC | Font.BOLD, 28); // 字体
|
||||
protected int len = 5; // 验证码随机字符长度
|
||||
protected int width = 150; // 验证码显示跨度
|
||||
protected int height = 40; // 验证码显示高度
|
||||
private String chars = null; // 随机字符串
|
||||
protected Font font = new Font("Verdana", Font.ITALIC | Font.BOLD, 28); // 字体
|
||||
protected int len = 5; // 验证码随机字符长度
|
||||
protected int width = 150; // 验证码显示宽度
|
||||
protected int height = 40; // 验证码显示高度
|
||||
private String chars = null; // 当前验证码
|
||||
|
||||
/**
|
||||
* 生成随机字符数组
|
||||
*
|
||||
* @return 字符数组
|
||||
*/
|
||||
protected char[] alphas() {
|
||||
char[] cs = new char[len];
|
||||
for (int i = 0; i < len; i++) {
|
||||
cs[i] = alpha();
|
||||
}
|
||||
chars = new String(cs);
|
||||
return cs;
|
||||
}
|
||||
/**
|
||||
* 生成随机验证码
|
||||
*
|
||||
* @return 验证码字符数组
|
||||
*/
|
||||
protected char[] alphas() {
|
||||
char[] cs = new char[len];
|
||||
for (int i = 0; i < len; i++) {
|
||||
cs[i] = alpha();
|
||||
}
|
||||
chars = new String(cs);
|
||||
return cs;
|
||||
}
|
||||
|
||||
public Font getFont() {
|
||||
return font;
|
||||
}
|
||||
/**
|
||||
* 给定范围获得随机颜色
|
||||
*
|
||||
* @param fc 0-255
|
||||
* @param bc 0-255
|
||||
* @return 随机颜色
|
||||
*/
|
||||
protected Color color(int fc, int bc) {
|
||||
if (fc > 255)
|
||||
fc = 255;
|
||||
if (bc > 255)
|
||||
bc = 255;
|
||||
int r = fc + num(bc - fc);
|
||||
int g = fc + num(bc - fc);
|
||||
int b = fc + num(bc - fc);
|
||||
return new Color(r, g, b);
|
||||
}
|
||||
|
||||
public void setFont(Font font) {
|
||||
this.font = font;
|
||||
}
|
||||
/**
|
||||
* 验证码输出,抽象方法，由子类实现
|
||||
*
|
||||
* @param os 输出流
|
||||
* @return 是否成功
|
||||
*/
|
||||
public abstract boolean out(OutputStream os);
|
||||
|
||||
public int getLen() {
|
||||
return len;
|
||||
}
|
||||
/**
|
||||
* 获取当前的验证码
|
||||
*
|
||||
* @return 字符串
|
||||
*/
|
||||
public String text() {
|
||||
checkAlpha();
|
||||
return chars;
|
||||
}
|
||||
|
||||
public void setLen(int len) {
|
||||
this.len = len;
|
||||
}
|
||||
/**
|
||||
* 获取当前验证码的字符数组
|
||||
*
|
||||
* @return 字符数组
|
||||
*/
|
||||
public char[] textChar() {
|
||||
checkAlpha();
|
||||
return chars.toCharArray();
|
||||
}
|
||||
|
||||
public int getWidth() {
|
||||
return width;
|
||||
}
|
||||
/**
|
||||
* 检查验证码是否生成，没有这立即生成
|
||||
*/
|
||||
public void checkAlpha() {
|
||||
if (chars == null) {
|
||||
alphas(); // 生成验证码
|
||||
}
|
||||
}
|
||||
|
||||
public void setWidth(int width) {
|
||||
this.width = width;
|
||||
}
|
||||
public Font getFont() {
|
||||
return font;
|
||||
}
|
||||
|
||||
public int getHeight() {
|
||||
return height;
|
||||
}
|
||||
public void setFont(Font font) {
|
||||
this.font = font;
|
||||
}
|
||||
|
||||
public void setHeight(int height) {
|
||||
this.height = height;
|
||||
}
|
||||
public int getLen() {
|
||||
return len;
|
||||
}
|
||||
|
||||
/**
|
||||
* 给定范围获得随机颜色
|
||||
*
|
||||
* @return Color 随机颜色
|
||||
*/
|
||||
protected Color color(int fc, int bc) {
|
||||
if (fc > 255)
|
||||
fc = 255;
|
||||
if (bc > 255)
|
||||
bc = 255;
|
||||
int r = fc + num(bc - fc);
|
||||
int g = fc + num(bc - fc);
|
||||
int b = fc + num(bc - fc);
|
||||
return new Color(r, g, b);
|
||||
}
|
||||
public void setLen(int len) {
|
||||
this.len = len;
|
||||
}
|
||||
|
||||
/**
|
||||
* 验证码输出,抽象方法，由子类实现
|
||||
*
|
||||
* @param os
|
||||
* 输出流
|
||||
*/
|
||||
public abstract void out(OutputStream os);
|
||||
public int getWidth() {
|
||||
return width;
|
||||
}
|
||||
|
||||
/**
|
||||
* 获取随机字符串
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public String text() {
|
||||
return chars;
|
||||
}
|
||||
|
||||
public char[] textChar() {
|
||||
return chars.toCharArray();
|
||||
}
|
||||
public void setWidth(int width) {
|
||||
this.width = width;
|
||||
}
|
||||
|
||||
public int getHeight() {
|
||||
return height;
|
||||
}
|
||||
|
||||
public void setHeight(int height) {
|
||||
this.height = height;
|
||||
}
|
||||
}
|
||||
@ -4,40 +4,20 @@ import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
|
||||
/**
|
||||
* @author: wuhongjun
|
||||
* @version:1.0
|
||||
*
|
||||
*/
|
||||
public class Encoder
|
||||
{
|
||||
public class Encoder {
|
||||
private static final int EOF = -1;
|
||||
|
||||
// 图片的宽高
|
||||
private int imgW, imgH;
|
||||
private byte[] pixAry;
|
||||
private int initCodeSize;
|
||||
private int remaining;
|
||||
private int curPixel;
|
||||
|
||||
// GIFCOMPR.C - GIF Image compression routines
|
||||
//
|
||||
// Lempel-Ziv compression based on 'compress'. GIF modifications by
|
||||
// David Rowley (mgardi@watdcsu.waterloo.edu)
|
||||
|
||||
// General DEFINEs
|
||||
private int initCodeSize; // 验证码位数
|
||||
private int remaining; // 剩余数量
|
||||
private int curPixel; // 像素
|
||||
|
||||
static final int BITS = 12;
|
||||
|
||||
static final int HSIZE = 5003; // 80% occupancy
|
||||
|
||||
// GIF Image compression - modified 'compress'
|
||||
//
|
||||
// Based on: compress.c - File compression ala IEEE Computer, June 1984.
|
||||
//
|
||||
// By Authors: Spencer W. Thomas (decvax!harpo!utah-cs!utah-gr!thomas)
|
||||
// Jim McKie (decvax!mcvax!jim)
|
||||
// Steve Davies (decvax!vax135!petsd!peora!srd)
|
||||
// Ken Turkowski (decvax!decwrl!turtlevax!ken)
|
||||
// James A. Woods (decvax!ihnp4!ames!jaw)
|
||||
// Joe Orost (decvax!vax135!petsd!joe)
|
||||
static final int HSIZE = 5003; // 80% 占用率
|
||||
|
||||
int n_bits; // number of bits/code
|
||||
int maxbits = BITS; // user settable max # bits/code
|
||||
@ -108,7 +88,7 @@ public class Encoder
|
||||
0x1FFF,
|
||||
0x3FFF,
|
||||
0x7FFF,
|
||||
0xFFFF };
|
||||
0xFFFF};
|
||||
|
||||
// Number of characters so far in this 'packet'
|
||||
int a_count;
|
||||
@ -184,7 +164,8 @@ public class Encoder
|
||||
|
||||
output(ClearCode, outs);
|
||||
|
||||
outer_loop : while ((c = nextPixel()) != EOF) {
|
||||
outer_loop:
|
||||
while ((c = nextPixel()) != EOF) {
|
||||
fcode = (c << maxbits) + ent;
|
||||
i = (c << hshift) ^ ent; // xor hashing
|
||||
|
||||
|
||||
@ -7,98 +7,87 @@ import java.awt.Graphics2D;
|
||||
import java.awt.image.BufferedImage;
|
||||
import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
|
||||
/**
|
||||
* <p>Gif验证码类</p>
|
||||
*
|
||||
* @author: wuhongjun
|
||||
* @version:1.0
|
||||
* Gif验证码类
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class GifCaptcha extends Captcha
|
||||
{
|
||||
public GifCaptcha()
|
||||
{
|
||||
public class GifCaptcha extends Captcha {
|
||||
|
||||
public GifCaptcha() {
|
||||
}
|
||||
|
||||
public GifCaptcha(int width,int height){
|
||||
this.width = width;
|
||||
this.height = height;
|
||||
alphas();
|
||||
public GifCaptcha(int width, int height) {
|
||||
setWidth(width);
|
||||
setHeight(height);
|
||||
}
|
||||
|
||||
public GifCaptcha(int width,int height,int len){
|
||||
this(width,height);
|
||||
this.len = len;
|
||||
public GifCaptcha(int width, int height, int len) {
|
||||
this(width, height);
|
||||
setLen(len);
|
||||
}
|
||||
|
||||
public GifCaptcha(int width,int height,int len,Font font)
|
||||
{
|
||||
this(width,height,len);
|
||||
this.font = font;
|
||||
public GifCaptcha(int width, int height, int len, Font font) {
|
||||
this(width, height, len);
|
||||
setFont(font);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void out(OutputStream os)
|
||||
{
|
||||
try
|
||||
{
|
||||
GifEncoder gifEncoder = new GifEncoder(); // gif编码类，这个利用了洋人写的编码类，所有类都在附件中
|
||||
//生成字符
|
||||
public boolean out(OutputStream os) {
|
||||
checkAlpha();
|
||||
boolean ok = false;
|
||||
try {
|
||||
char[] rands = textChar(); // 获取验证码数组
|
||||
GifEncoder gifEncoder = new GifEncoder();
|
||||
gifEncoder.start(os);
|
||||
gifEncoder.setQuality(180);
|
||||
gifEncoder.setDelay(100);
|
||||
gifEncoder.setRepeat(0);
|
||||
BufferedImage frame;
|
||||
char[] rands = textChar();
|
||||
Color fontcolor[]=new Color[len];
|
||||
for(int i=0;i<len;i++)
|
||||
{
|
||||
fontcolor[i]=new Color(20 + num(110), 20 + num(110), 20 + num(110));
|
||||
Color fontcolor[] = new Color[len];
|
||||
for (int i = 0; i < len; i++) {
|
||||
fontcolor[i] = new Color(20 + num(110), 20 + num(110), 20 + num(110));
|
||||
}
|
||||
for(int i=0;i<len;i++)
|
||||
{
|
||||
frame=graphicsImage(fontcolor, rands, i);
|
||||
for (int i = 0; i < len; i++) {
|
||||
frame = graphicsImage(fontcolor, rands, i);
|
||||
gifEncoder.addFrame(frame);
|
||||
frame.flush();
|
||||
}
|
||||
gifEncoder.finish();
|
||||
}finally
|
||||
{
|
||||
try {
|
||||
os.close();
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
ok = true;
|
||||
} finally {
|
||||
try {
|
||||
os.close();
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
return ok;
|
||||
}
|
||||
|
||||
/**
|
||||
* 画随机码图
|
||||
*
|
||||
* @param fontcolor 随机字体颜色
|
||||
* @param strs 字符数组
|
||||
* @param flag 透明度使用
|
||||
* @param strs 字符数组
|
||||
* @param flag 透明度使用
|
||||
* @return BufferedImage
|
||||
*/
|
||||
private BufferedImage graphicsImage(Color[] fontcolor,char[] strs,int flag)
|
||||
{
|
||||
BufferedImage image = new BufferedImage(width, height,BufferedImage.TYPE_INT_RGB);
|
||||
//或得图形上下文
|
||||
//Graphics2D g2d=image.createGraphics();
|
||||
Graphics2D g2d = (Graphics2D)image.getGraphics();
|
||||
//利用指定颜色填充背景
|
||||
g2d.setColor(Color.WHITE);
|
||||
private BufferedImage graphicsImage(Color[] fontcolor, char[] strs, int flag) {
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||
Graphics2D g2d = (Graphics2D) image.getGraphics();
|
||||
g2d.setColor(Color.WHITE); // 填充背景颜色
|
||||
g2d.fillRect(0, 0, width, height);
|
||||
AlphaComposite ac3;
|
||||
int h = height - ((height - font.getSize()) >>1) ;
|
||||
int w = width/len;
|
||||
int h = height - ((height - font.getSize()) >> 1);
|
||||
int w = width / len;
|
||||
g2d.setFont(font);
|
||||
for(int i=0;i<len;i++)
|
||||
{
|
||||
for (int i = 0; i < len; i++) {
|
||||
ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
|
||||
g2d.setComposite(ac3);
|
||||
g2d.setColor(fontcolor[i]);
|
||||
g2d.drawOval(num(width), num(height), 5+num(10), 5+num(10));
|
||||
g2d.drawString(strs[i]+"", (width-(len-i)*w)+(w-font.getSize())+1, h-4);
|
||||
g2d.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
|
||||
g2d.drawString(String.valueOf(strs[i]), (width - (len - i) * w) + (w - font.getSize()) + 1, h - 4);
|
||||
}
|
||||
g2d.dispose();
|
||||
return image;
|
||||
@ -106,13 +95,15 @@ public class GifCaptcha extends Captcha
|
||||
|
||||
/**
|
||||
* 获取透明度,从0到1,自动计算步长
|
||||
* @return float 透明度
|
||||
*
|
||||
* @param i
|
||||
* @param j
|
||||
* @return 透明度
|
||||
*/
|
||||
private float getAlpha(int i,int j)
|
||||
{
|
||||
int num = i+j;
|
||||
float r = (float)1/len,s = (len+1) * r;
|
||||
return num > len ? (num *r - s) : num * r;
|
||||
private float getAlpha(int i, int j) {
|
||||
int num = i + j;
|
||||
float r = (float) 1 / len, s = (len + 1) * r;
|
||||
return num > len ? (num * r - s) : num * r;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -10,6 +10,7 @@ import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
|
||||
/**
|
||||
* Gif生成工具
|
||||
* Class AnimatedGifEncoder - Encodes a GIF file consisting of one or
|
||||
* more frames.
|
||||
* <pre>
|
||||
@ -25,13 +26,8 @@ import java.io.OutputStream;
|
||||
* for any purpose, however, refer to the Unisys LZW patent for restrictions
|
||||
* on use of the associated Encoder class. Please forward any corrections
|
||||
* to questions at fmsware.com.
|
||||
*
|
||||
* @author wuhongjun
|
||||
* @version 1.03 November 2003
|
||||
*
|
||||
*/
|
||||
public class GifEncoder
|
||||
{
|
||||
public class GifEncoder {
|
||||
protected int width; // image size
|
||||
protected int height;
|
||||
protected Color transparent = null; // transparent color if given
|
||||
@ -67,6 +63,7 @@ public class GifEncoder
|
||||
* Sets the GIF frame disposal code for the last added frame
|
||||
* and any subsequent frames. Default is 0 if no transparent
|
||||
* color has been set, otherwise 2.
|
||||
*
|
||||
* @param code int disposal code.
|
||||
*/
|
||||
public void setDispose(int code) {
|
||||
@ -322,7 +319,6 @@ public class GifEncoder
|
||||
|
||||
/**
|
||||
* Returns index of palette color closest to c
|
||||
*
|
||||
*/
|
||||
protected int findClosest(Color c) {
|
||||
if (colorTab == null) return -1;
|
||||
@ -332,7 +328,7 @@ public class GifEncoder
|
||||
int minpos = 0;
|
||||
int dmin = 256 * 256 * 256;
|
||||
int len = colorTab.length;
|
||||
for (int i = 0; i < len;) {
|
||||
for (int i = 0; i < len; ) {
|
||||
int dr = r - (colorTab[i++] & 0xff);
|
||||
int dg = g - (colorTab[i++] & 0xff);
|
||||
int db = b - (colorTab[i] & 0xff);
|
||||
@ -473,7 +469,7 @@ public class GifEncoder
|
||||
}
|
||||
|
||||
/**
|
||||
* Write 16-bit value to output stream, LSB first
|
||||
* Write 16-bit value to output stream, LSB first
|
||||
*/
|
||||
protected void writeShort(int value) throws IOException {
|
||||
out.write(value & 0xff);
|
||||
|
||||
@ -1,24 +1,20 @@
|
||||
package com.wf.captcha;
|
||||
|
||||
/**
|
||||
* <p></p>
|
||||
*
|
||||
* @author: wuhongjun
|
||||
* @version:1.0
|
||||
*/
|
||||
public class Quant
|
||||
{
|
||||
public class Quant {
|
||||
protected static final int netsize = 256; /* number of colours used */
|
||||
|
||||
/* four primes near 500 - assume no image has a length so large */
|
||||
/* that it is divisible by all four primes */
|
||||
/* that it is divisible by all four primes */
|
||||
protected static final int prime1 = 499;
|
||||
protected static final int prime2 = 491;
|
||||
protected static final int prime3 = 487;
|
||||
protected static final int prime4 = 503;
|
||||
|
||||
protected static final int minpicturebytes = (3 * prime4);
|
||||
/* minimum size for input image */
|
||||
/* minimum size for input image */
|
||||
|
||||
/* Program Skeleton
|
||||
----------------
|
||||
@ -80,13 +76,13 @@ public class Quant
|
||||
protected int[][] network; /* the network itself - [netsize][4] */
|
||||
|
||||
protected int[] netindex = new int[256];
|
||||
/* for network lookup - really 256 */
|
||||
/* for network lookup - really 256 */
|
||||
|
||||
protected int[] bias = new int[netsize];
|
||||
/* bias and freq arrays for learning */
|
||||
protected int[] freq = new int[netsize];
|
||||
protected int[] radpower = new int[initrad];
|
||||
/* radpower for precomputation */
|
||||
/* radpower for precomputation */
|
||||
|
||||
/* Initialise network in range (0,0,0) to (255,255,255) and set parameters
|
||||
----------------------------------------------------------------------- */
|
||||
@ -139,7 +135,7 @@ public class Quant
|
||||
p = network[i];
|
||||
smallpos = i;
|
||||
smallval = p[1]; /* index on g */
|
||||
/* find smallest in i..netsize-1 */
|
||||
/* find smallest in i..netsize-1 */
|
||||
for (j = i + 1; j < netsize; j++) {
|
||||
q = network[j];
|
||||
if (q[1] < smallval) { /* index on g */
|
||||
@ -148,7 +144,7 @@ public class Quant
|
||||
}
|
||||
}
|
||||
q = network[smallpos];
|
||||
/* swap p (i) and q (smallpos) entries */
|
||||
/* swap p (i) and q (smallpos) entries */
|
||||
if (i != smallpos) {
|
||||
j = q[0];
|
||||
q[0] = p[0];
|
||||
@ -163,7 +159,7 @@ public class Quant
|
||||
q[3] = p[3];
|
||||
p[3] = j;
|
||||
}
|
||||
/* smallval entry is now in position i */
|
||||
/* smallval entry is now in position i */
|
||||
if (smallval != previouscol) {
|
||||
netindex[previouscol] = (startpos + i) >> 1;
|
||||
for (j = previouscol + 1; j < smallval; j++)
|
||||
@ -320,6 +316,7 @@ public class Quant
|
||||
}
|
||||
return (best);
|
||||
}
|
||||
|
||||
public byte[] process() {
|
||||
learn();
|
||||
unbiasnet();
|
||||
@ -385,7 +382,7 @@ public class Quant
|
||||
---------------------------------------------------- */
|
||||
protected void altersingle(int alpha, int i, int b, int g, int r) {
|
||||
|
||||
/* alter hit neuron */
|
||||
/* alter hit neuron */
|
||||
int[] n = network[i];
|
||||
n[0] -= (alpha * (n[0] - b)) / initalpha;
|
||||
n[1] -= (alpha * (n[1] - g)) / initalpha;
|
||||
@ -396,10 +393,10 @@ public class Quant
|
||||
---------------------------- */
|
||||
protected int contest(int b, int g, int r) {
|
||||
|
||||
/* finds closest neuron (min dist) and updates freq */
|
||||
/* finds best neuron (min dist-bias) and returns position */
|
||||
/* for frequently chosen neurons, freq[i] is high and bias[i] is negative */
|
||||
/* bias[i] = gamma*((1/netsize)-freq[i]) */
|
||||
/* finds closest neuron (min dist) and updates freq */
|
||||
/* finds best neuron (min dist-bias) and returns position */
|
||||
/* for frequently chosen neurons, freq[i] is high and bias[i] is negative */
|
||||
/* bias[i] = gamma*((1/netsize)-freq[i]) */
|
||||
|
||||
int i, dist, a, biasdist, betafreq;
|
||||
int bestpos, bestbiaspos, bestd, bestbiasd;
|
||||
|
||||
@ -3,41 +3,64 @@ package com.wf.captcha;
|
||||
import java.util.Random;
|
||||
|
||||
/**
|
||||
* <p>随机工具类</p>
|
||||
*
|
||||
* @author: wuhongjun
|
||||
* @version:1.0
|
||||
* 随机数工具类
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class Randoms
|
||||
{
|
||||
public class Randoms {
|
||||
private static final Random RANDOM = new Random();
|
||||
//定义验证码字符.去除了O和I等容易混淆的字母
|
||||
public static final char ALPHA[]={'A','B','C','D','E','F','G','H','G','K','M','N','P','Q','R','S','T','U','V','W','X','Y','Z'
|
||||
,'a','b','c','d','e','f','g','h','i','j','k','m','n','p','q','r','s','t','u','v','w','x','y','z','2','3','4','5','6','7','8','9'};
|
||||
// 定义验证码字符.去除了O和I等容易混淆的字母
|
||||
public static final char ALPHA[] = {'2', '3', '4', '5', '6', '7', '8', '9',
|
||||
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'G', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
|
||||
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
|
||||
|
||||
/**
|
||||
* 产生两个数之间的随机数
|
||||
* @param min 小数
|
||||
* @param max 比min大的数
|
||||
* @return int 随机数字
|
||||
*
|
||||
* @param min 最小值
|
||||
* @param max 最大值
|
||||
* @return 随机数
|
||||
*/
|
||||
public static int num(int min, int max)
|
||||
{
|
||||
public static int num(int min, int max) {
|
||||
return min + RANDOM.nextInt(max - min);
|
||||
}
|
||||
|
||||
/**
|
||||
* 产生0--num的随机数,不包括num
|
||||
* @param num 数字
|
||||
* @return int 随机数字
|
||||
* 产生0-num的随机数,不包括num
|
||||
*
|
||||
* @param num 最大值
|
||||
* @return 随机数
|
||||
*/
|
||||
public static int num(int num)
|
||||
{
|
||||
public static int num(int num) {
|
||||
return RANDOM.nextInt(num);
|
||||
}
|
||||
|
||||
public static char alpha()
|
||||
{
|
||||
return ALPHA[num(0, ALPHA.length)];
|
||||
/**
|
||||
* 返回ALPHA中的随机字符
|
||||
*
|
||||
* @return 随机字符
|
||||
*/
|
||||
public static char alpha() {
|
||||
return ALPHA[num(ALPHA.length)];
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回ALPHA中第0位到第num位的随机字符
|
||||
*
|
||||
* @param num 到第几位结束
|
||||
* @return 随机字符
|
||||
*/
|
||||
public static char alpha(int num) {
|
||||
return ALPHA[num(num)];
|
||||
}
|
||||
|
||||
/**
|
||||
* 返回ALPHA中第min位到第max位的随机字符
|
||||
*
|
||||
* @param min 从第几位开始
|
||||
* @param max 到第几位结束
|
||||
* @return 随机字符
|
||||
*/
|
||||
public static char alpha(int min, int max) {
|
||||
return ALPHA[num(min, max)];
|
||||
}
|
||||
}
|
||||
@ -9,90 +9,93 @@ import java.io.IOException;
|
||||
import java.io.OutputStream;
|
||||
|
||||
import javax.imageio.ImageIO;
|
||||
|
||||
/**
|
||||
* <p>png格式验证码</p>
|
||||
*
|
||||
* @author: wuhongjun
|
||||
* @version:1.0
|
||||
* png格式验证码
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class SpecCaptcha extends Captcha
|
||||
{
|
||||
public SpecCaptcha()
|
||||
{
|
||||
public class SpecCaptcha extends Captcha {
|
||||
|
||||
public SpecCaptcha() {
|
||||
}
|
||||
public SpecCaptcha(int width, int height)
|
||||
{
|
||||
this.width = width;
|
||||
this.height = height;
|
||||
|
||||
public SpecCaptcha(int width, int height) {
|
||||
setWidth(width);
|
||||
setHeight(height);
|
||||
}
|
||||
public SpecCaptcha(int width, int height, int len){
|
||||
this(width,height);
|
||||
this.len = len;
|
||||
|
||||
public SpecCaptcha(int width, int height, int len) {
|
||||
this(width, height);
|
||||
setLen(len);
|
||||
}
|
||||
public SpecCaptcha(int width, int height, int len, Font font){
|
||||
this(width,height,len);
|
||||
this.font = font;
|
||||
}
|
||||
/**
|
||||
* 生成验证码
|
||||
* @throws java.io.IOException IO异常
|
||||
*/
|
||||
@Override
|
||||
public void out(OutputStream out){
|
||||
graphicsImage(alphas(), out);
|
||||
|
||||
public SpecCaptcha(int width, int height, int len, Font font) {
|
||||
this(width, height, len);
|
||||
setFont(font);
|
||||
}
|
||||
|
||||
/**
|
||||
* 画随机码图
|
||||
* @param strs 文本
|
||||
* 生成验证码
|
||||
*
|
||||
* @param out 输出流
|
||||
* @return 是否成功
|
||||
*/
|
||||
private boolean graphicsImage(char[] strs, OutputStream out){
|
||||
boolean ok = false;
|
||||
try
|
||||
{
|
||||
BufferedImage bi = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
|
||||
Graphics2D g = (Graphics2D)bi.getGraphics();
|
||||
@Override
|
||||
public boolean out(OutputStream out) {
|
||||
checkAlpha();
|
||||
return graphicsImage(textChar(), out);
|
||||
}
|
||||
|
||||
/**
|
||||
* 生成验证码图形
|
||||
*
|
||||
* @param strs 验证码
|
||||
* @param out 输出流
|
||||
* @return boolean
|
||||
*/
|
||||
private boolean graphicsImage(char[] strs, OutputStream out) {
|
||||
boolean ok;
|
||||
try {
|
||||
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||
Graphics2D g = (Graphics2D) bi.getGraphics();
|
||||
AlphaComposite ac3;
|
||||
Color color ;
|
||||
Color color;
|
||||
int len = strs.length;
|
||||
g.setColor(Color.WHITE);
|
||||
g.fillRect(0,0,width,height);
|
||||
// 随机画干扰的蛋蛋
|
||||
for(int i=0;i<15;i++){
|
||||
g.fillRect(0, 0, width, height);
|
||||
// 随机画干扰的圆圈
|
||||
for (int i = 0; i < 15; i++) {
|
||||
color = color(150, 250);
|
||||
g.setColor(color);
|
||||
g.drawOval(num(width), num(height), 5+num(10), 5+num(10));// 画蛋蛋，有蛋的生活才精彩
|
||||
g.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
|
||||
color = null;
|
||||
}
|
||||
g.setFont(font);
|
||||
int h = height - ((height - font.getSize()) >>1),
|
||||
w = width/len,
|
||||
size = w-font.getSize()+1;
|
||||
/* 画字符串 */
|
||||
for(int i=0;i<len;i++)
|
||||
{
|
||||
int h = height - ((height - font.getSize()) >> 1);
|
||||
int w = width / len;
|
||||
int size = w - font.getSize() + 1;
|
||||
// 画字符串
|
||||
for (int i = 0; i < len; i++) {
|
||||
ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f);// 指定透明度
|
||||
g.setComposite(ac3);
|
||||
color = new Color(20 + num(110), 20 + num(110), 20 + num(110));// 对每个字符都用随机颜色
|
||||
g.setColor(color);
|
||||
g.drawString(strs[i]+"",(width-(len-i)*w)+size, h-4);
|
||||
g.drawString(String.valueOf(strs[i]), (width - (len - i) * w) + size, h - 4);
|
||||
color = null;
|
||||
ac3 = null;
|
||||
}
|
||||
ImageIO.write(bi, "png", out);
|
||||
out.flush();
|
||||
ok = true;
|
||||
}catch (IOException e){
|
||||
} catch (IOException e) {
|
||||
ok = false;
|
||||
}finally
|
||||
{
|
||||
try {
|
||||
out.close();
|
||||
} catch (IOException e) {
|
||||
// TODO Auto-generated catch block
|
||||
e.printStackTrace();
|
||||
}
|
||||
e.printStackTrace();
|
||||
} finally {
|
||||
try {
|
||||
out.close();
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
return ok;
|
||||
}
|
||||
|
||||
@ -11,23 +11,14 @@ import com.wf.captcha.utils.CaptchaUtil;
|
||||
|
||||
/**
|
||||
* 验证码servlet
|
||||
*
|
||||
* @author wangfan
|
||||
* @date 2018-5-14 上午9:53:01
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class CaptchaServlet extends HttpServlet {
|
||||
private static final long serialVersionUID = -90304944339413093L;
|
||||
|
||||
public void doGet(HttpServletRequest request, HttpServletResponse response)
|
||||
throws ServletException, IOException {
|
||||
// 是否有key决定是存在session中还是servletContext中
|
||||
String key = request.getParameter("key");
|
||||
CaptchaUtil cu = new CaptchaUtil();
|
||||
if (key != null && !key.trim().isEmpty()) {
|
||||
cu.out(key, request, response);
|
||||
} else {
|
||||
cu.out(request, response);
|
||||
}
|
||||
CaptchaUtil.out(request, response);
|
||||
}
|
||||
|
||||
public void doPost(HttpServletRequest request, HttpServletResponse response)
|
||||
|
||||
@ -2,7 +2,6 @@ package com.wf.captcha.utils;
|
||||
|
||||
import java.io.IOException;
|
||||
|
||||
import javax.servlet.ServletContext;
|
||||
import javax.servlet.http.HttpServletRequest;
|
||||
import javax.servlet.http.HttpServletResponse;
|
||||
|
||||
@ -11,136 +10,75 @@ import com.wf.captcha.GifCaptcha;
|
||||
|
||||
/**
|
||||
* 图形验证码工具类
|
||||
*
|
||||
* @author wangfan
|
||||
* @date 2018-5-14 上午9:41:06
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class CaptchaUtil {
|
||||
private String codeName = "captcha";
|
||||
private int width = 130;
|
||||
private int height = 38;
|
||||
private int len = 5;
|
||||
private static final String SESSION_KEY = "captcha";
|
||||
|
||||
public CaptchaUtil() {
|
||||
}
|
||||
/**
|
||||
* 验证验证码
|
||||
*/
|
||||
public static boolean ver(String code, HttpServletRequest request) {
|
||||
if (code != null && !code.trim().isEmpty()) {
|
||||
String captcha = (String) request.getSession().getAttribute(SESSION_KEY);
|
||||
return code.trim().toLowerCase().equals(captcha);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* 验证码的宽、高、位数
|
||||
*/
|
||||
public CaptchaUtil(int width, int height, int len) {
|
||||
set(width, height, len);
|
||||
}
|
||||
/**
|
||||
* 输出验证码
|
||||
*
|
||||
* @param request
|
||||
* @param response
|
||||
* @throws IOException
|
||||
*/
|
||||
public static void out(HttpServletRequest request, HttpServletResponse response)
|
||||
throws IOException {
|
||||
out(130, 38, 5, request, response);
|
||||
}
|
||||
|
||||
/**
|
||||
* 验证验证码
|
||||
*/
|
||||
public boolean ver(String code, HttpServletRequest request) {
|
||||
String captcha = (String) request.getSession().getAttribute(codeName);
|
||||
return code.equals(captcha);
|
||||
}
|
||||
/**
|
||||
* 输出验证码
|
||||
*
|
||||
* @param len 长度
|
||||
* @param request
|
||||
* @param response
|
||||
* @throws IOException
|
||||
*/
|
||||
public static void out(int len, HttpServletRequest request, HttpServletResponse response)
|
||||
throws IOException {
|
||||
out(130, 38, len, request, response);
|
||||
}
|
||||
|
||||
/**
|
||||
* 验证验证码，用于分离的项目
|
||||
*/
|
||||
public boolean ver(String key, String code, HttpServletRequest rq) {
|
||||
ServletContext sc = rq.getServletContext();
|
||||
String keyName = codeName + "-" + key;
|
||||
String captcha = (String) sc.getAttribute(keyName);
|
||||
return code.equals(captcha);
|
||||
}
|
||||
/**
|
||||
* 输出验证码
|
||||
*
|
||||
* @param width 宽度
|
||||
* @param height 高度
|
||||
* @param len 长度
|
||||
* @param request
|
||||
* @param response
|
||||
* @throws IOException
|
||||
*/
|
||||
public static void out(int width, int height, int len, HttpServletRequest request, HttpServletResponse response)
|
||||
throws IOException {
|
||||
setHeader(response);
|
||||
Captcha captcha = new GifCaptcha(130, 38, 5);
|
||||
request.getSession().setAttribute(SESSION_KEY, captcha.text().toLowerCase());
|
||||
captcha.out(response.getOutputStream());
|
||||
}
|
||||
|
||||
/**
|
||||
* 输出验证码
|
||||
*/
|
||||
public void out(HttpServletRequest rq, HttpServletResponse rp)
|
||||
throws IOException {
|
||||
/**
|
||||
* 设置相应头
|
||||
*
|
||||
* @param response
|
||||
*/
|
||||
private static void setHeader(HttpServletResponse response) {
|
||||
response.setContentType("image/gif");
|
||||
response.setHeader("Pragma", "No-cache");
|
||||
response.setHeader("Cache-Control", "no-cache");
|
||||
response.setDateHeader("Expires", 0);
|
||||
}
|
||||
|
||||
setHeader(rp);
|
||||
|
||||
// 验证码的宽、高、位数
|
||||
Captcha captcha = new GifCaptcha(width, height, len);
|
||||
// 存入缓存
|
||||
rq.getSession().setAttribute(codeName, captcha.text().toLowerCase());
|
||||
|
||||
// 输入图片
|
||||
captcha.out(rp.getOutputStream());
|
||||
}
|
||||
|
||||
/**
|
||||
* 输出验证码，用于分离项目
|
||||
*/
|
||||
public void out(String key, HttpServletRequest rq, HttpServletResponse rp)
|
||||
throws IOException {
|
||||
|
||||
setHeader(rp);
|
||||
|
||||
// 验证码的宽、高、位数
|
||||
Captcha captcha = new GifCaptcha(width, height, len);
|
||||
// 存入缓存
|
||||
ServletContext sc = rq.getServletContext();
|
||||
sc.setAttribute(codeName, captcha.text().toLowerCase());
|
||||
|
||||
// 输入图片
|
||||
captcha.out(rp.getOutputStream());
|
||||
}
|
||||
|
||||
private void setHeader(HttpServletResponse rp) {
|
||||
rp.setContentType("image/gif");
|
||||
rp.setHeader("Pragma", "No-cache");
|
||||
rp.setHeader("Cache-Control", "no-cache");
|
||||
rp.setDateHeader("Expires", 0);
|
||||
}
|
||||
|
||||
public String getCodeName() {
|
||||
return codeName;
|
||||
}
|
||||
|
||||
/**
|
||||
* 设置保存code的key
|
||||
*/
|
||||
public void setCodeName(String codeName) {
|
||||
this.codeName = codeName;
|
||||
}
|
||||
|
||||
public int getWidth() {
|
||||
return width;
|
||||
}
|
||||
|
||||
/**
|
||||
* 设置验证码的宽度
|
||||
*/
|
||||
public void setWidth(int width) {
|
||||
this.width = width;
|
||||
}
|
||||
|
||||
public int getHeight() {
|
||||
return height;
|
||||
}
|
||||
|
||||
/**
|
||||
* 设置验证码的高度
|
||||
*/
|
||||
public void setHeight(int height) {
|
||||
this.height = height;
|
||||
}
|
||||
|
||||
public int getLen() {
|
||||
return len;
|
||||
}
|
||||
|
||||
/**
|
||||
* 设置验证码的位数
|
||||
*/
|
||||
public void setLen(int len) {
|
||||
this.len = len;
|
||||
}
|
||||
|
||||
/**
|
||||
* 设置验证码的宽、高、位数
|
||||
*/
|
||||
public void set(int width, int height, int len) {
|
||||
setWidth(width);
|
||||
setHeight(height);
|
||||
setLen(len);
|
||||
}
|
||||
}
|
||||
|
||||
27
src/test/java/com/wf/captcha/CaptchaTest.java
Normal file
27
src/test/java/com/wf/captcha/CaptchaTest.java
Normal file
@ -0,0 +1,27 @@
|
||||
package com.wf.captcha;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileOutputStream;
|
||||
|
||||
/**
|
||||
* 测试类
|
||||
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||
*/
|
||||
public class CaptchaTest {
|
||||
|
||||
@Test
|
||||
public void test() throws Exception {
|
||||
SpecCaptcha specCaptcha = new SpecCaptcha(150, 40, 4);
|
||||
System.out.println(specCaptcha.text());
|
||||
specCaptcha.out(new FileOutputStream(new File("D:/a/aa.png")));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGIf() throws Exception {
|
||||
GifCaptcha specCaptcha = new GifCaptcha(150, 40, 4);
|
||||
System.out.println(specCaptcha.text());
|
||||
specCaptcha.out(new FileOutputStream(new File("D:/a/aa.gif")));
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user