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  • ajax传递数组到Java后台进行批量删除

    js:

      先自定义一个数组,

        var ids = [1,2];//数组里的值随便给一下,这里只能给正整数
        $.ajax({
            url:"../../areaController/deleteArea",
            type:"POST",
            data:{ids:ids},
            dataType:"json",
            traditional:true,//这个是必须要的
            success:function(data){
                
            },
        });

    controller:

      

        @ResponseBody
        @RequestMapping("/deleteArea")
        public Map<String,Object> deleteArea(HttpServletRequest request){
            Map<String,Object> map = new HashMap<>();
            String[] id = request.getParameterValues("ids");//接收数组
            Integer num = iAreaService.deleteArea(id);
            map.put("msg",num > 0 ? "SUCCESS" : "ERROR");
            return map;
        }

    SQL:

      <!-- 删除
      forEach : 用来循环
        collection : 用来指定循环的数据的类型 可以填的值有:array,list,map
        item : 循环中为每个循环的数据指定一个别名
        index : 循环中循环的下标
        open : 开始
        close : 结束
        separator : 数组中元素之间的分隔符
    
      -->
      <update id="deleteArea">
        update area set isdelete = 1
          where id IN 
          <foreach collection="array" index="index" item="item" open="(" separator="," close=")">
            #{item}
          </foreach>
      </update>
    @ResponseBody
    @RequestMapping("/deleteArea")
    public Map<String,Object> deleteArea(HttpServletRequest request){
    Map<String,Object> map = new HashMap<>();
    String[] id = request.getParameterValues("ids");
    Integer num = iAreaService.deleteArea(id);
    map.put("msg",num > 0 ? "SUCCESS" : "ERROR");
    return map;
    }
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  • 原文地址:https://www.cnblogs.com/ljmm/p/13261126.html
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