添加Json

src/com/landaiqing/filter/UserSessionFilter.java

@@ -19,7 +19,7 @@ import java.io.IOException;
  */
 @WebFilter("/*")// 过滤器所有的请求
 public class UserSessionFilter implements Filter {
-    private String[] excludeUrls = new String[]{"/login", "/register", "/VerifycodeServlet","/ExUserNameServlet"};
+    private String[] excludeUrls = new String[]{"/login", "/register", "/VerifycodeServlet","/exUserNameServlet"};
 
     @Override
     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

web/register.jsp

@@ -10,7 +10,7 @@
 <html>
 <head>
     <title>注册页面</title>
-    <form action="${pageContext.request.contextPath}/register" method="post">
+    <form action="/JavaWeb_Login_Register_war_exploded/register" method="post">
         <label>用户名: </label><input type="text" name="userName" onkeyup="mayiktAxios(this)"/><br>
         <label>密&nbsp&nbsp&nbsp码: </label><input type="password" name="userPwd"/><br>
         <label>验证码: </label><input type="text" name="code"/><img id="exchangecode" src="VerifycodeServlet">