Title


    前往登录

    
        aa
        com.yanyu.Login
    
    
        aa
        https://blog.csdn.net/demo/login
    
    
        bb
        com.yanyu.Demmo
    
    
        bb
        /list
    

package com.yanyu;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
public class Login extends HttpServlet {
//       重写  父类方法    ctrl o
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        super.doGet(req, resp);   调用   父类的方法   super  ==  父类 的对象
//        设置   响应的类型和  编码格式
        /*   浏览器  --》 服务器 的 数据   request
        服务器  --》  浏览器 的  数据   response
        * request
        * response
        * */
        response.setContentType("text/html");
        response.setCharacterEncoding("utf-8");
//        获取响应对象
        PrintWriter out = response.getWriter();//   ctrl   alt  v
//        out.println("");
        out.println("hello3");
//  多行  编辑   alt  鼠标拖动
out.println("        ");
out.println("");
out.println("");
out.println("    ");
out.println("    ");
out.println("    ");
out.println("    Document");
out.println("");
out.println("");
out.println("    
登录界面
");
out.println("    ");
//    src   =  href  =  action    都是   路径  都是  url
out.println("                账号");
out.println("    
");
out.println("                密码");
out.println("    ");
out.println("    
");
out.println("    ");
out.println("    ");
out.println("");
out.println("");


    }
}

package com.yanyu;
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 Demmo extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
//        获取   浏览器 的数据   request
//        设置  请求  编码
        request.setCharacterEncoding("utf-8");
        string username = request.getParameter("username");//  CTRL   alt  v
        String pass = request.getParameter("password");//  CTRL   alt  v
//          通过  name   属性的  值   username   去  拿到  账号
        System.out.println(username);///  打印到服务器控制台   4232354
        System.out.println(pass);///  打印到服务器控制台   4232354
    }
}