Js：
//批量删除
$(".delAll_btn").click(function(){
var checkStatus = table.checkStatus(‘userListTable’),
data = checkStatus.data,
teacher_ids = “”;
if(data.length > 0) {
for (var i in data) {
teacher_ids+=data[i].teacher_id+",";
}
console.log(“teacher_ids为:”+teacher_ids);
layer.confirm(‘确定删除选中的用户？’, {icon: 3, title: ‘提示信息’}, function (index) {

            $.get("delMulti.do",{teacherIds:teacher_ids},function(cs){tableIns.reload();layer.msg("批量删除"+JSON.parse(cs).msg);layer.close(index);})

// $.get(“delMulti.do?teacherIds=”+teacher_ids,function(cs){
// tableIns.reload();
// layer.msg(“批量删除”+JSON.parse(cs).msg);
// layer.close(index);
// })

        })}else{layer.msg("请选择需要删除的用户");}

})

Controller：
/**
* 批量删除
* @param ids
* @return
*/
@ResponseBody
@RequestMapping("/delMulti.do")
public JsonBean delMulti(String teacherIds){
List ids = new ArrayList<>();
String[] teacher_ids = teacherIds.split(",");

	for (String t_id : teacher_ids) {Long id = Long.valueOf(t_id);ids.add(id);}return teacherService.delMulti(ids);
}

Service：

public JsonBean delMulti(List<Long> ids) {JsonBean jsonBean = new JsonBean(-1, "失败", null);int n=teacherMapper.delMulti(ids);if(n>0){jsonBean = new JsonBean(0, "成功", null);}return jsonBean;
}

Mapper：
int delMulti(List ids);

Sql：

delete from teacherwhere teacher_id IN#{item}