pageEncoding="gbk"%>
登录页面| 用户名： | |
| 密 码: | |
package com.demo;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.WebServlet;
@WebServlet(name="LoginServlet",urlPatterns={"/login.do"})
public class LoginServlet {
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException{
String username=request.getParameter("username");//返回由username指定的请求参数值
String password=request.getParameter("password");
response.setContentType("text/html;charset=gbk");
PrintWriter out=response.getWriter();
out.print("
");if("admin".equals(username)&&"admin".equals(password)){
out.println("登录成功！欢迎您，"+username);
}else if("娃哈哈".equals(username)&&"whh".equals(password)){
out.println("登录成功！欢迎您，"+username);
}else{
out.println("对不起！您的用户名或密码不正确");
}
out.println("");
}
}
点击登录后 显示：
HTTP Status 404 -
type Status report
message
description The requested resource is not available.
Apache Tomcat/7.0.59