java Mybatis+MySQL 批量插入、批量更新、批量查询

随笔记录。亲测可用

1.批量插入

mapper

int insertBrandBusinessByExcel(List list);

.xml

  
  
      insert into tb_label (ecp,pid,ehco)
      values 
      
         (#{label.ecp,jdbcType=VARCHAR},#{label.pid,jdbcType=INTEGER},#{label.ehco,jdbcType=VARCHAR})
      
  

controller：

/**
	 * 批量入库
	 * @param list
	 * @param pid
	 * @return
	 */
	@PostMapping("/insertAll")//@RequestParam 不写会报List错误
	public Object insertLabel(@RequestParam("list")List list,String ehco,int pid,String user){

postman：

相应事物层控制层就不写了都是相应的调用（我是测试），或处理下逻辑。

2.批量更新

mapper

int batchUpdateLabelDTO(List list);

.xml

  
       
         update tb_label
          
            state = #{label.state,jdbcType=INTEGER},
            hid = #{label.hid,jdbcType=INTEGER},
            frequency = #{label.frequency,jdbcType=INTEGER}
         
          
            id = #{label.id,jdbcType=INTEGER}
          
      
  

controller：

/**
	 * 批量更新
	 * @param list
	 * @param
	 * @return
	 */
	@PostMapping("/CascadeUpdate")
	public Object batchUpdateLabelDTO(@RequestBody List list){

postman:

3.批量查询

mapper

List selectLabelDTO(List list);

.xml

  
     SELECT l.id,l.ecp,l.pid,l.frequency,l.ehco,l.state,l.hid,l.gross,l.employ,l.unused,l.account_balance,
      l.total_cost,l.created,l.updated,l.delivery_time,
      v.id v_id,v.variety_name,v.category_id,v.grade_id,v.image,v.specification,v.rental_price,v.occupancy_expenses,
     v.frequency v_frequency,v.echo,v.created v_created,v.updated v_updated
     FROM tb_label l LEFT JOIN tb_variety v ON v.id = l.pid
      WHERE l.ecp in
      
          #{label}
      
  

查询和同样上两个同样。

 

记录，方便以后查阅。