archive: homework4

2025-04-02 12:16:32 +08:00
parent bbcf2610e6
commit d40f635090
4 changed files with 84 additions and 1 deletions
@@ -0,0 +1,21 @@
 package com.msksbr.homework4.entitys;
 public class User {
    private String username;
    private String password;
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
 }
@@ -0,0 +1,37 @@
 package com.msksbr.homework4.sessions;
 import com.msksbr.homework4.entitys.User;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
 import java.io.PrintWriter;
@WebServlet("/Login")
 public class Login extends HttpServlet {
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        response.setContentType("text/html;charset=UTF-8");
        String username = request.getParameter("name");
        String password = request.getParameter("pwd");
        PrintWriter pw=response.getWriter();
        if("msksbr".equals(username)&&"123456".equals(password)){
            User user=new User();
            user.setUsername(username);
            user.setPassword(password);
            request.getSession().setAttribute("user",user);
            // 添加动态上下文路径前缀
            response.sendRedirect(request.getContextPath() + "/index.jsp");
        }else {
            pw.write("用户名或密码错误，请重新登录！");
        }
    }
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        doGet(request, response);
    }
 }
@@ -0,0 +1,21 @@
 package com.msksbr.homework4.sessions;
 import jakarta.servlet.ServletException;
 import jakarta.servlet.annotation.WebServlet;
 import jakarta.servlet.http.HttpServlet;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import java.io.IOException;
@WebServlet("/Logout")
 public class Logout extends HttpServlet {
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        request.getSession().removeAttribute("user");
        response.sendRedirect(request.getContextPath()+"/login.jsp");
    }
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        doGet(request, response);
    }
 }
@@ -4,6 +4,10 @@
    <title>用户登录</title>
  </head>
  <body>
-  
+  <form name="form1" action="${pageContext.request.contextPath}/Login" method="post">
    用户名：<input type="text" name="name" id="name" style="width:200px"/><br/>
    密&nbsp;&nbsp;码：<input type="password" name="pwd" id="pwd" style="width:200px"/><br/>
    <input type="submit" name="Submit" value="提交"/>
  </form>
  </body>
 </html>