Servlet response:重定向实现

1.首先执行indix.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


Hello World!
<%--${pageContext.request.contextPath}指当前项目--%>

    用户名：

    密码：

    

2.点击提交后执行action，在web.xml找到login，执行实现Servlet接口的RequestTest类

package com.xiaocong2.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class RequestTest extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String username = req.getParameter("username");
        String password = req.getParameter("password");
        System.out.println(username+":"+password);

        resp.sendRedirect("/response_war/success.jsp");
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }
}

3.req可以在后台得到数据，resp.sendRedirect进行重定向进入success.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    


Success

 这个成功页面可以随意写

4，最后，有任何问题一起讨论