Update UpdateMemberAdminServlet.java

ticketing-master/src/com/cn/servlet/UpdateMemberAdminServlet.java

@@ -15,63 +15,86 @@ import com.cn.service.impl.MemberServiceImpl;
 /**
  * 
  * @ClassName: UpdateMemberAdminServlet 
- * @Description: 管理员修改会员
+ * @Description: 管理员修改会员信息的Servlet
  * @author: ljy
  * @date: 2019年9月28日 下午9:38:55
  */
 public class UpdateMemberAdminServlet extends HttpServlet {
-	private static final long serialVersionUID = 1L;
+    private static final long serialVersionUID = 1L;
        
     /**
-     * @see HttpServlet#HttpServlet()
+     * HttpServlet的构造函数。
      */
     public UpdateMemberAdminServlet() {
         super();
-        // TODO Auto-generated constructor stub
+        // 构造函数中的代码，通常不需要自定义操作，因为父类已经处理
     }
 
-	/**
-	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
-	 */
-	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-
-		// 从数据库获取这个会员的信息转发到修改界面
-		Integer memberId = Integer.valueOf(request.getParameter("memberId"));
-		
-		MemberService memberService = new MemberServiceImpl();
-		Member member = memberService.getMemberById(memberId);
-		
-		request.setAttribute("member", member);
-		request.getRequestDispatcher("pages/admin/right/updateMember.jsp").forward(request, response);
-		
-	}
-
-	/**
-	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
-	 */
-	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		
-		// 将修改后的数据更新到数据库
-		Integer memberId = Integer.valueOf(request.getParameter("memberId"));
-		String userName = request.getParameter("userName");
-		String password = request.getParameter("password");
-		
-		MemberService memberService = new MemberServiceImpl();
-		Member member = memberService.getMemberById(memberId);
-		member.setUserName(userName);
-		member.setPassword(password);
-		int recordNumber = memberService.updateMember(member);
-		
-		PrintWriter out = response.getWriter();
-		if(recordNumber == 1) {
-			out.write("<script>alert('修改会员成功！');"
-			    + "window.location.href='MemberCenterServlet'</script>");
-		}else {
-			out.write("<script>alert('很抱歉,修改会员失败！');"
-				    + "window.location.href='MemberCenterServlet'</script>");
-		}
-		
-		out.close();
-	}
+    /**
+     * 处理GET请求的方法。
+     * 当客户端发送GET请求到此Servlet时，这个方法会被调用。
+     * @param request HttpServletRequest对象，包含客户端请求信息。
+     * @param response HttpServletResponse对象，用于发送响应到客户端。
+     * @throws ServletException 可能抛出的Servlet异常。
+     * @throws IOException 可能抛出的IO异常。
+     */
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        // 从请求中获取会员ID参数，并转换为Integer类型
+        Integer memberId = Integer.valueOf(request.getParameter("memberId"));
+        
+        // 创建MemberService的实现类对象，用于访问会员相关的业务逻辑
+        MemberService memberService = new MemberServiceImpl();
+        // 根据会员ID获取会员对象
+        Member member = memberService.getMemberById(memberId);
+        
+        // 将会员对象设置为request属性，以便在JSP页面中可以访问
+        request.setAttribute("member", member);
+        // 转发请求到修改会员信息的JSP页面
+        request.getRequestDispatcher("pages/admin/right/updateMember.jsp").forward(request, response);
+        
+    }
+
+    /**
+     * 处理POST请求的方法。
+     * 当客户端发送POST请求到此Servlet时，这个方法会被调用。
+     * @param request HttpServletRequest对象，包含客户端请求信息。
+     * @param response HttpServletResponse对象，用于发送响应到客户端。
+     * @throws ServletException 可能抛出的Servlet异常。
+     * @throws IOException 可能抛出的IO异常。
+     */
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        
+        // 从请求中获取会员ID、用户名和密码参数，并转换为相应的类型
+        Integer memberId = Integer.valueOf(request.getParameter("memberId"));
+        String userName = request.getParameter("userName");
+        String password = request.getParameter("password");
+        
+        // 创建MemberService的实现类对象
+        MemberService memberService = new MemberServiceImpl();
+        // 根据会员ID获取会员对象
+        Member member = memberService.getMemberById(memberId);
+        // 更新会员的用户名和密码
+        member.setUserName(userName);
+        member.setPassword(password);
+        // 更新会员对象到数据库
+        int recordNumber = memberService.updateMember(member);
+        
+        // 获取PrintWriter对象，用于向客户端发送响应
+        PrintWriter out = response.getWriter();
+        // 判断更新是否成功
+        if(recordNumber == 1) {
+            // 如果成功，弹出提示并跳转到会员中心
+            out.write("<script>alert('修改会员成功！');"
+                    + "window.location.href='MemberCenterServlet'</script>");
+        } else {
+            // 如果失败，弹出提示并跳转到会员中心
+            out.write("<script>alert('很抱歉,修改会员失败！');"
+                    + "window.location.href='MemberCenterServlet'</script>");
+        }
+        
+        // 关闭PrintWriter对象
+        out.close();
+    }
 
 }