编写后台代码

深碍√TFBOYSˉ_ 2023-10-08 09:42 17阅读 0赞

### 添加和修改代码 ###

1.编写controller

@Controller
    @RequestMapping("/platfProduct")
    public class PlatfProductController {
        
    	
    	@Autowired
    	private  PlatfProductService  platfProductService;
    
    
    
        /**
         * @gen_192_lwl
         * 获取产品列表
         * 获取产品列表
         * @param platfProductVo
        **/
        @Title("获取产品列表")
        @ResponseBody
        @RequestMapping(value="/list", method=RequestMethod.POST)   //value 为接口地址   method为请求方法
        public BaseRes<PageWrapper<List<PlatfProductVo>>> list(@RequestBody PlatfProductVo platfProductVo, BindingResult bindingResult) {
        
           
        	return platfProductService.list(platfProductVo);
        }
    
        /**
         * @gen_189_lwl
         * 删除产品列表
         * 删除产品列表
         * @param id
        **/
      //通过ID删除
        @Title("删除产品列表")
        @ResponseBody
        @RequestMapping(value="/delete/{id}", method=RequestMethod.GET)
        public BaseRes<String> delete(@PathVariable("id") Integer id) {
        
             
        	return platfProductService.delete(id);
        }
    
        /**
         * @gen_190_lwl
         * 更新产品列表
         * 更新产品列表
         * @param platfProductVo
        **/
        @Title("更新产品列表")
        @ResponseBody
        @RequestMapping(value="/update", method=RequestMethod.POST)
        public BaseRes<String> update(@RequestBody PlatfProductVo platfProductVo, BindingResult bindingResult) {
        
           
            return platfProductService.update(platfProductVo);
        }
    
        /**
         * @gen_191_lwl
         * 添加产品列表
         * 添加产品列表
         * @param platfProductVo
        **/
        @Title("添加产品列表")
        @ResponseBody
        @RequestMapping(value="/add", method=RequestMethod.POST)
        public BaseRes<String> add(@RequestBody PlatfProductVo platfProductVo, BindingResult bindingResult) {
        
            
            return platfProductService.add(platfProductVo);
        }
    
    
        /**
         * @gen_201_lwl
         * 产品详情
         * 产品详情
         * @param platfProductid
        **/
        @Title("产品详情")
        @ResponseBody
        @RequestMapping(value="/detail", method=RequestMethod.POST)
        public BaseRes<PlatfProductVo> detail(@RequestBody @Validated(PlatfProductController_detail.class) PlatfProductVo platfProductid, BindingResult bindingResult) {
        
             
        	return platfProductService.detail(platfProductid);
        }
    }

1.  编写Service

public interface PlatfProductService {
        
    
    	BaseRes<PageWrapper<List<PlatfProductVo>>> list(PlatfProductVo platfProductVo);
    
    	BaseRes<String> delete(Integer id);
    
    	BaseRes<String> update(PlatfProductVo platfProductVo);
    
    	BaseRes<String> add(PlatfProductVo platfProductVo);
    
    	BaseRes<PlatfProductVo> detail(PlatfProductVo platfProductid);
    
    }

3.创建ServiceImpl 继承于 Service

@Component
    public class PlatfProductServiceImpl implements PlatfProductService {
        
    
    	@Autowired
    	private PlatfSettingMapper platfProductMapper;
    	
    
    
      /**获取数据库列表*/
    	@Override
    	public BaseRes<PageWrapper<List<PlatfProductVo>>> list(PlatfProductVo platfProductVo) {
        
    		
    		BaseRes<PageWrapper<List<PlatfProductVo>>> res = new BaseRes<>();
    		PageWrapper<List<PlatfProductVo>> data = new PageWrapper<>();
    		res.setData(data);
    
    		//分页
    		Integer current = platfProductVo.getCurrent();
    		current = current == null ? 1 : current;
    		Integer pageSize = platfProductVo.getPageSize();
    		pageSize = pageSize == null ? 10 : pageSize;
    		
    		int mysqlOffset = (current - 1) * pageSize;
    		int mysqlLength = pageSize;
    		
    		PlatfSettingCriteria platfCriteria = new PlatfSettingCriteria();
    		Criteria criteria =PlatfSettingCriteria.createCriteria();
    		//设置 显示顺序
    		platfCriteria.setOrderByClause(" id desc ");
    		// 设置分页
    		platfCriteria.setMysqlOffset(mysqlOffset);
    		platfCriteria.setMysqlLength(mysqlLength);
    		long total = platfProductMapper.countByExample(platfCriteria);
    		data.setTotal(total);
    		data.setPageSize(pageSize);
    		data.setCurrent(current);
    		
    		if (total > 0) {
        
    			List<PlatfSetting>  platfSetting = platfProductMapper.selectByExample(platfCriteria);
    			List<PlatfProductVo> pus = BeanUtil.voConvertList(platfSetting, PlatfProductVo.class);
    			data.setData(pus);
    		}
    		res.setServiceCode(ServiceCode.SUCCESS);
    		return res;
    	}
    	
    
    /**单独查询*/
    	@Override
    	public BaseRes<PlatfProductVo> detail(PlatfProductVo platfProductid) {
        
    		BaseRes<PlatfProductVo> res = new BaseRes<>();
           //通过id查询某一条数据
    		PlatfProduct  temp = platfProductMapper.selectByPrimaryKey(platfProductid.getId());
    	
    		if (temp != null) {
        
    			res.setData(BeanUtil.voConvert(temp, PlatfProductVo.class));
    			res.setServiceCode(ServiceCode.SUCCESS);
    		} else {
        
    			res.setServiceCode(ServiceCode.FAILED);
    		}
    		return res;
    	}
    
    
    /**删除某条数据*/
    	@Override
    	public BaseRes<String> delete(Integer id) {
        
    		platfProductMapper.deleteByPrimaryKey(id);    //通过主键删除数据
    		return new BaseRes<>(ServiceCode.SUCCESS);;
    	}
    
    /**更新某条数据*/
    
    	@Override
    	public BaseRes<String> update(PlatfProductVo platfProductVo) {
        
    		platfProductVo.setUpdateDate(new Date());  //设置更新时间
    		platfProductMapper.updateByPrimaryKeySelective(platfProductVo);
    		
    		return new BaseRes<>(ServiceCode.SUCCESS);
    	}
    
    
    /**添加某条数据*/
    	@Override
    	public BaseRes<String> add(PlatfProductVo platfProductVo) {
        
    		platfProductVo.setCreateDate(new Date());     //设置创建时间
    		platfProductMapper.insertSelective(platfProductVo);
    		return new BaseRes<>(ServiceCode.SUCCESS);
    	}
    
    }

4.OK，至此，简单的增删改查方法就建好了，下面来开始编写前端代码吧！