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src/main/java/com/wf/captcha/utils/CaptchaUtil.java

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+package com.wf.captcha.utils;
+
+import javax.servlet.ServletContext;
+import javax.servlet.http.HttpServletRequest;
+
+public class CaptchaUtil {
+
+	/**
+	 * 验证验证码
+	 * 
+	 * @param verKey
+	 * @param verCode
+	 * @param request
+	 * @return
+	 */
+	public static boolean isVerified(String verKey, String verCode,
+			HttpServletRequest request) {
+		ServletContext servletContext = request.getSession()
+				.getServletContext();
+		String cacheVerCode = (String) servletContext.getAttribute("code_"
+				+ verKey);
+		return verCode.equals(cacheVerCode);
+	}
+}