From 3cf63e591f0c4d0b8da1e920bb0834425d272194 Mon Sep 17 00:00:00 2001
From: pght2c95q <2582048197@qq.com>
Date: Sun, 15 Dec 2024 15:15:22 +0800
Subject: [PATCH] Update UpdatePrepAdminServlet.java

---
 .../cn/servlet/UpdatePrepAdminServlet.java    | 113 +++++++++++-------
 1 file changed, 69 insertions(+), 44 deletions(-)

diff --git a/ticketing-master/src/com/cn/servlet/UpdatePrepAdminServlet.java b/ticketing-master/src/com/cn/servlet/UpdatePrepAdminServlet.java
index 9542ced..8568739 100644
--- a/ticketing-master/src/com/cn/servlet/UpdatePrepAdminServlet.java
+++ b/ticketing-master/src/com/cn/servlet/UpdatePrepAdminServlet.java
@@ -15,54 +15,79 @@ import com.cn.service.impl.PrepServiceImpl;
 /**
  * 
  * @ClassName: UpdatePrepAdminServlet 
- * @Description: 管理员 修改订单
+ * @Description: 管理员修改订单的Servlet
  * @author: ljy
  * @date: 2019年9月28日 下午7:38:31
  */
 public class UpdatePrepAdminServlet extends HttpServlet {
-	private static final long serialVersionUID = 1L;
-       
+    private static final long serialVersionUID = 1L;
 
-	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		// 获取订单信息转发到修改订单界面
-		Integer prepId = Integer.valueOf(request.getParameter("prepId"));
-		
-		PrepService prepService = new PrepServiceImpl();
-		Prep prep = prepService.getById(prepId);
-		
-		request.setAttribute("prep", prep);
-		
-		request.getRequestDispatcher("pages/admin/right/updatePrep.jsp").forward(request, response);
-		
-	}
+    /**
+     * 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 {
+        // 从请求中获取订单ID参数，并转换为Integer类型
+        Integer prepId = Integer.valueOf(request.getParameter("prepId"));
+        
+        // 创建PrepService的实现类对象，用于访问订单相关的业务逻辑
+        PrepService prepService = new PrepServiceImpl();
+        // 根据订单ID获取订单对象
+        Prep prep = prepService.getById(prepId);
+        
+        // 将订单对象设置为request属性，以便在JSP页面中可以访问
+        request.setAttribute("prep", prep);
+        
+        // 转发请求到修改订单信息的JSP页面
+        request.getRequestDispatcher("pages/admin/right/updatePrep.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 {
+        
+        // 从请求中获取修改界面的数据
+        Integer prepId = Integer.valueOf(request.getParameter("prepId"));
+        Integer price = Integer.valueOf(request.getParameter("price"));
+        boolean way = Boolean.valueOf(request.getParameter("way"));
+        
+        // 创建PrepService的实现类对象
+        PrepService prepService = new PrepServiceImpl();
+        // 根据订单ID获取订单对象
+        Prep prep = prepService.getById(prepId);
+        
+        // 更新订单对象的数据
+        prep.setPrice(price);
+        prep.setWay(way);
+        
+        // 更新订单对象到数据库
+        int recordNumber = prepService.update(prep);
+        
+        // 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，弹出提示并跳转到所有订单的Servlet
+            out.write("<script>alert('修改成功！');"
+                    + "window.location.href='GetAllPrepServlet'</script>");
+        } else {
+            // 如果失败，弹出提示并跳转到所有订单的Servlet
+            out.write("<script>alert('很抱歉,修改失败！');"
+                    + "window.location.href='GetAllPrepServlet'</script>");
+        }
+        
+        // 关闭PrintWriter对象
+        out.close();
+    }
 
-	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		
-		// 获取修改界面的数据，将其刷新进数据库
-		Integer prepId = Integer.valueOf(request.getParameter("prepId"));
-		Integer price = Integer.valueOf(request.getParameter("price"));
-		boolean way = Boolean.valueOf(request.getParameter("way"));
-		
-		PrepService prepService = new PrepServiceImpl();
-		Prep prep = prepService.getById(prepId);
-		
-		prep.setPrice(price);
-		prep.setWay(way);
-		
-		int recordNumber = prepService.update(prep);
-		
-		PrintWriter out = response.getWriter();
-		if(recordNumber == 1) {
-			out.write("<script>alert('修改成功！');"
-			    + "window.location.href='GetAllPrepServlet'</script>");
-		}else {
-			out.write("<script>alert('很抱歉,修改失败！');"
-				    + "window.location.href='GetAllPrepServlet'</script>");
-		}
-		
-		out.close();
-		
-	}
-
-}
+}
\ No newline at end of file