DAO-Service-Controller

DAO

package com.changgou.goods.dao;
import com.changgou.goods.pojo.Brand;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;

public interface BrandMapper extends Mapper<Brand> {

    @Select(value="select tb.* from tb_brand tb ,tb_category_brand tbc where tb.id = tbc.brand_id and tbc.category_id=#{categoryid}")
    List<Brand> findByCategory(Integer categoryid);
}

Service

import com.changgou.goods.service.AlbumService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import tk.mybatis.mapper.entity.Example;
import java.util.List;

@Service
public class AlbumServiceImpl implements AlbumService {

    @Autowired
    private AlbumMapper albumMapper;
    @Override
    public PageInfo<Album> findPage(Album album, int page, int size){
        //分页
        PageHelper.startPage(page,size);
        //搜索条件构建
        Example example = createExample(album);
        //执行搜索
        return new PageInfo<Album>(albumMapper.selectByExample(example));
    }
     @Override
    public Album findById(Long id){
        return  albumMapper.selectByPrimaryKey(id);
    }

Controller

package com.changgou.goods.controller;
import com.changgou.goods.pojo.Album;
import com.changgou.goods.service.AlbumService;
import com.github.pagehelper.PageInfo;
import entity.Result;
import entity.StatusCode;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;


@RestController
@RequestMapping("/album")
@CrossOrigin
public class AlbumController {

    @Autowired
    private AlbumService albumService;
    
    @PostMapping(value = "/search/{page}/{size}" )
    public Result<PageInfo> findPage(@RequestBody(required = false)  Album album, @PathVariable  int page, @PathVariable  int size){
        //调用AlbumService实现分页条件查询Album
        PageInfo<Album> pageInfo = albumService.findPage(album, page, size);
        return new Result(true,StatusCode.OK,"查询成功",pageInfo);
    }
    
    @GetMapping(value = "/search/{page}/{size}" )
    public Result<PageInfo> findPage(@PathVariable  int page, @PathVariable  int size){
        //调用AlbumService实现分页查询Album
        PageInfo<Album> pageInfo = albumService.findPage(page, size);
        return new Result<PageInfo>(true,StatusCode.OK,"查询成功",pageInfo);
    }