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>