Response获取用户名密码

1.建一个类，获取用

package com.yin;

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 {
        //System.out.println("进入这个请求");
        //处理请求
        String  username=req.getParameter("username");
        String  password=req.getParameter("password");
        System.out.println(username+":"+password);
        resp.sendRedirect("/response1_war/success.jsp");
    }

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

　　2.修改INDEX.JSP用它来录入用户名密码。

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

<html>
<body>
<h2>Servlet Demo!</h2>
<%--这里提交的路径，需要寻找到项目路径--%>
<%--${pageContext.request.contextPath}代表当前项目--%>
<form action="${pageContext.request.contextPath}/login" method="get">
    用户名：<input type="text" name="username"><br>
    密码：<input type="password"  name="password"><br>
    <input type="submit">
</form>
</body>
</html>

　　3. .web.xml里面加入加入 

    <servlet>
        <servlet-name>request</servlet-name>
        <servlet-class>com.yin.RequestTest</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>request</servlet-name>
        <url-pattern>/login</url-pattern>
    </servlet-mapping>

　　4.sucess网页用来验证

<html>
<body>
<h2>Success!</h2>

</body>
</html>

　　

 

posted @ 2023-01-15 00:58  壹贰叁肆伍陆  阅读(46)  评论(0)    收藏  举报