add<订单页>

src/main/java/example/controller/OrdersServlet.java

@@ -0,0 +1,31 @@
+package example.controller;
+
+import example.service.IOrdersService;
+import example.service.impl.OrdersServiceImpl;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@WebServlet("/orders")
+public class OrdersServlet extends HttpServlet {
+
+    IOrdersService ordersService=new OrdersServiceImpl();
+
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        String action = req.getParameter("action");
+        switch (action) {
+            case "all":
+                ordersService.allOrder(req, resp);
+                break;
+            case "delete":
+//                ordersService.delete(req, resp);
+                break;
+
+        }
+    }
+}

src/main/java/example/dao/OrdersDao.java

@@ -0,0 +1,29 @@
+package example.dao;
+
+import example.model.Orders;
+import example.utils.DBUtils;
+import org.apache.commons.dbutils.QueryRunner;
+import org.apache.commons.dbutils.handlers.BeanListHandler;
+
+import java.util.List;
+
+public class OrdersDao {
+    private final QueryRunner queryRunner = new QueryRunner(DBUtils.getDataSource());
+
+
+    public List<Orders>  getAllOrders() {
+        String sql = "select id,user_id userId,order_date orderDate,total_price totalPrice,address ,remark  from orders o ";
+        try {
+            return queryRunner.query(sql, new BeanListHandler<>(Orders.class));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+    public static void main(String[] args) {
+        OrdersDao ordersDao = new OrdersDao();
+        System.out.println(ordersDao.getAllOrders());
+    }
+}

src/main/java/example/model/Orders.java

@@ -0,0 +1,77 @@
+package example.model;
+
+import java.time.LocalDateTime;
+
+public class Orders {
+    private Integer id;
+
+    private Integer userId;
+
+    private LocalDateTime orderDate;
+
+    private Double totalPrice;
+
+    private String address;
+
+    private String remark;
+
+    @Override
+    public String toString() {
+        return "Orders{" +
+                "id=" + id +
+                ", userId=" + userId +
+                ", orderDate=" + orderDate +
+                ", totalPrice=" + totalPrice +
+                ", address='" + address + '\'' +
+                ", remark='" + remark + '\'' +
+                '}';
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public LocalDateTime getOrderDate() {
+        return orderDate;
+    }
+
+    public void setOrderDate(LocalDateTime orderDate) {
+        this.orderDate = orderDate;
+    }
+
+    public Double getTotalPrice() {
+        return totalPrice;
+    }
+
+    public void setTotalPrice(Double totalPrice) {
+        this.totalPrice = totalPrice;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+    public void setAddress(String address) {
+        this.address = address;
+    }
+
+    public String getRemark() {
+        return remark;
+    }
+
+    public void setRemark(String remark) {
+        this.remark = remark;
+    }
+}

src/main/java/example/service/IOrdersService.java

@@ -0,0 +1,12 @@
+package example.service;
+
+import example.model.Orders;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.List;
+
+public interface IOrdersService {
+
+    void allOrder(HttpServletRequest req, HttpServletResponse resp);
+}

src/main/java/example/service/impl/OrdersServiceImpl.java

@@ -0,0 +1,26 @@
+package example.service.impl;
+
+import example.dao.OrdersDao;
+import example.model.Orders;
+import example.service.IOrdersService;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.List;
+
+public class OrdersServiceImpl implements IOrdersService {
+
+    OrdersDao ordersDao=new OrdersDao();
+
+    @Override
+    public void allOrder(HttpServletRequest req, HttpServletResponse resp) {
+        List<Orders> allOrders = ordersDao.getAllOrders();
+        req.setAttribute("Orders",allOrders);
+        try {
+            req.getRequestDispatcher("orders.jsp").forward(req,resp);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/main/webapp/index.jsp

@@ -9,5 +9,6 @@
 <a href="/computerList">电脑列表</a>
 <a href="/user?action=list">用户列表</a>
 <a href="/cart?action=list">我的购物车</a>
+<a href="/orders?action=all">所有订单</a>
 </body>
 </html>

src/main/webapp/orders.jsp

@@ -0,0 +1,44 @@
+<%@ page contentType="text/html; charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>订单列表</title>
+</head>
+<body>
+    <h1>订单列表</h1>
+    <table border="1">
+        <thead>
+            <tr>
+                <th>订单编号</th>
+                <th>用户ID</th>
+                <th>订单日期</th>
+                <th>总金额</th>
+                <th>地址</th>
+                <th>商品信息</th>
+                <th>操作</th>
+            </tr>
+        </thead>
+        <tbody>
+            <c:forEach var="order" items="${Orders}">
+                <tr>
+                    <td>${order.id}</td>
+                    <td>${order.userId}</td>
+                    <td>${order.orderDate}</td>
+                    <td>${order.totalPrice}</td>
+                    <td>${order.address}</td>
+                    <td>${order.remark}</td>
+                    <td>
+                        <a href="/orders?action=delete&id=${order.id}">删除</a>
+                    </td>
+                </tr>
+            </c:forEach>
+        </tbody>
+    </table>
+    <br/>
+    <br>
+    <a href="/">主页</a>
+</body>
+</html>