diff --git a/src/com/hellogithub/servlet/UserRegisterServlet.java b/src/com/hellogithub/servlet/UserRegisterServlet.java
index 3ee2665..0328ccf 100644
--- a/src/com/hellogithub/servlet/UserRegisterServlet.java
+++ b/src/com/hellogithub/servlet/UserRegisterServlet.java
@@ -46,7 +46,6 @@ public class UserRegisterServlet extends HttpServlet {
         String userPwd = req.getParameter("password");
         // 参数验证
         if (StringUtils.isEmpty(userPwd)) {
-            //转发到错误页面
             setResultError("密码不能够是为空", writer);
             return;
         }
diff --git a/src/com/hellogithub/servlet/VerifycodeServlet.java b/src/com/hellogithub/servlet/VerifycodeServlet.java
index eea51d6..c3887f6 100644
--- a/src/com/hellogithub/servlet/VerifycodeServlet.java
+++ b/src/com/hellogithub/servlet/VerifycodeServlet.java
@@ -22,14 +22,14 @@ public class VerifycodeServlet extends HttpServlet {
         response.setContentType("image/jpeg");//设置相应类型,告诉浏览器输出的内容为图片
         response.setHeader("Pragma", "No-cache");//设置响应头信息，告诉浏览器不要缓存此内容
 
-        request.setCharacterEncoding("UTF-8");
-        response.setCharacterEncoding("UTF-8");
-        response.setContentType("text/html; charset=utf-8");
+//        request.setCharacterEncoding("UTF-8");
+//        response.setCharacterEncoding("UTF-8");
+//        response.setContentType("text/html; charset=utf-8");
         //        设置响应头允许ajax跨域访问
-        response.setHeader("Access-Control-Allow-Origin", "*");
-        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
-        response.setHeader("Access-Control-Max-Age", "3600");
-        response.setHeader("Access-Control-Allow-Headers", "token, Accept, Origin, X-Requested-With, Content-Type, Last-Modified");
+//        response.setHeader("Access-Control-Allow-Origin", "*");
+//        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
+//        response.setHeader("Access-Control-Max-Age", "3600");
+//        response.setHeader("Access-Control-Allow-Headers", "token, Accept, Origin, X-Requested-With, Content-Type, Last-Modified");
 
         //做浏览器兼容
         response.setHeader("Cache-Control", "no-cache");
diff --git a/src/com/hellogithub/utils/RandomValidateCode.java b/src/com/hellogithub/utils/RandomValidateCode.java
index 3873a1c..b0b36fa 100644
--- a/src/com/hellogithub/utils/RandomValidateCode.java
+++ b/src/com/hellogithub/utils/RandomValidateCode.java
@@ -16,7 +16,7 @@ public class RandomValidateCode {
     public static final String RANDOMVALIDATECODE = "RandomValidateCode";// 放到session中的key
     private Random random = new Random();
     private String randString = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";//随机产生的字符串
-    private int width = 100;// 图片宽度
+    private int width = 80;// 图片宽度
     private int height = 26;// 图片高度
     private int lineSize = 40;// 干扰线数量
     private int stringNum = 4;// 随机产生的字符数量
@@ -52,13 +52,6 @@ public class RandomValidateCode {
      * @param response
      */
     public void getRandcode(HttpServletRequest request, HttpServletResponse response) {
-        response.setCharacterEncoding("UTF-8");
-        response.setContentType("text/html; charset=utf-8");
-        //        设置响应头允许ajax跨域访问
-        response.setHeader("Access-Control-Allow-Origin", "*");
-        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
-        response.setHeader("Access-Control-Max-Age", "3600");
-        response.setHeader("Access-Control-Allow-Headers", "token, Accept, Origin, X-Requested-With, Content-Type, Last-Modified");
         HttpSession session = request.getSession();
         // BufferedImage类是具有缓冲区的Image类,Image类是用于描述图像信息的类
         BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);