loser/EasyCaptcha
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优化验证码效果

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synchronized
2018-07-30 13:10:51 +08:00
parent 74a1991352
commit 92af7138a9
9 changed files with 160 additions and 31 deletions
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11
src/main/java/com/wf/captcha/GifCaptcha.java
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@@ -96,14 +96,14 @@ public class GifCaptcha extends Captcha {
int hp = (height - font.getSize()) >> 1;
int h = height - hp;
int w = width / strs.length;
int sp = (w - font.getSize()) / 2;
//int sp = (w - font.getSize()) / 2;
for (int i = 0; i < strs.length; i++) {
AlphaComposite ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
g2d.setComposite(ac3);
g2d.setColor(fontcolor[i]);
// 计算坐标
int x = i * w + sp + num(-3, 3);
int y = h + num(-6, 0);
int x = i * w + num(6);
int y = h - num(2, 8);
if (x < 0) {
x = 0;
}
@@ -131,8 +131,9 @@ public class GifCaptcha extends Captcha {
*/
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;
float r = (float) 1 / (len - 1);
float s = len * r;
return num >= len ? (num * r - s) : num * r;
}
}