Servlet 练习简单的注册

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
注册
<form action="ZhucServlet" method="post">
用户名<input type="text" name="username">
<br>
密码<input type="password" name="password">
<br>
确认密码<input type="password" name="password1">
<br>
<input type="submit" value="提交">
</form>
</body>
</html>

package com.hanqi.web;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


public class ZhucServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
  
    public ZhucServlet() {
        super();
        
    }

    
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("text/html");
        response.setCharacterEncoding("UTF-8");
        String un=request.getParameter("username");
        String pw=request.getParameter("password");
        String pw1=request.getParameter("password1");
        
        if(un!=null&&pw!=null)
        {
            if(pw!=""&&un!="")
            {
            if(pw.equals(pw1))
            {
                String n=new String(un.getBytes("ISO-8859-1"),"UTF-8");
                response.getWriter().write(n+"，恭喜注册成功");
            }
            else
            {
                response.getWriter().write("请确认密码是否一致");
            }
            }
            else
            {
                response.getWriter().write("用户名或密码不能为空");
            }
        }
        else
        {
            response.getWriter().write("用户名或密码不能为空");
        }
        //response.getWriter().append("Served at: ").append(request.getContextPath());
    }

    
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        
        doGet(request, response);
    }

}

Servlet 练习 简单的注册

Servlet 练习简单的注册