工单系统的设计与实现（5）

mapper层编写完了，下面继续编写service层和controller层的代码。

service：示例中没有调用所有的数据接口。

package com.example.demo.service;

import com.example.demo.bean.OrderInfo;
import com.example.demo.mapper.OrderMapper;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class OrderService {
    @Autowired
    OrderMapper orderMapper;

    public PageInfo<OrderInfo> getAllOrders(int page, int pageSize){
        PageHelper.startPage(page, pageSize);
        List<OrderInfo> list = orderMapper.selectAllOrders();
        PageInfo<OrderInfo> pageInfo = new PageInfo<>(list);
        return pageInfo;
    }

    public OrderInfo getOrderByID(int id){
        return orderMapper.selectByPrimaryKey(id);
    }


    public int updateOrder(OrderInfo orderInfo) {

        return orderMapper.update(orderInfo);
    }

    public int deleteOrder(int id){
        return orderMapper.deleteByPrimaryKey(id);
    }


    public PageInfo<OrderInfo> getOrderByUserId(int uid,int page,int pageSize){
        PageHelper.startPage(page, pageSize);
        List<OrderInfo> list = orderMapper.selectByUserID(uid);
        PageInfo<OrderInfo> pageInfo = new PageInfo<>(list);
        return pageInfo;
    }

    public int updateOrderStatus(OrderInfo orderInfo){
        return orderMapper.updateStatus(orderInfo);
    }

}

View Code

controller：

 1 package com.example.demo.controller;
 2 
 3 import com.example.demo.bean.OrderInfo;
 4 import com.example.demo.service.OrderService;
 5 import com.github.pagehelper.PageInfo;
 6 import org.springframework.beans.factory.annotation.Autowired;
 7 import org.springframework.web.bind.annotation.*;
 8 import org.springframework.web.multipart.MultipartFile;
 9 
10 import java.io.File;
11 import java.io.IOException;
12 import java.text.SimpleDateFormat;
13 import java.util.Date;
14 import java.util.UUID;
15 
16 @RestController
17 @RequestMapping("/order")
18 public class BasicOrderController {
19     @Autowired
20     OrderService orderService;
21 
22     @RequestMapping(value = "/all", method = RequestMethod.GET)
23     public PageInfo<OrderInfo> getAllOrders(@RequestParam(value = "page", defaultValue = "1") int page,
24                                             @RequestParam(value = "pageSize", defaultValue = "8") int pageSize)  {
25         return orderService.getAllOrders(page, pageSize);
26     }
27 
28     @RequestMapping(value = "/detail/{id}", method = RequestMethod.GET)
29     public OrderInfo getOrderByID(@PathVariable(value = "id", required = true) int id) {
30         return orderService.getOrderByID(id);
31     }
32 
33     @RequestMapping(value = "/user/{uid}", method = RequestMethod.GET)
34     public PageInfo<OrderInfo> getOrderByUserID(@PathVariable(value = "uid", required = true) int uid,
35                                                 @RequestParam(value = "page", defaultValue = "1") int page,
36                                                 @RequestParam(value = "pageSize", defaultValue = "10") int pageSize) {
37         return orderService.getOrderByUserId(uid, page, pageSize);
38     }
39 
40 }

View Code

在浏览器中输入编写的接口地址：http://localhost:8080/order/all 可见其能正确返回数据。