@DeleteMapping
public R deleteMaterial(@RequestParam("ids") String idList){//idList=1,2,3,4
log.debug("idList is " + idList);
String[] ids = idList.split(",");
if (ids.length == 1){
materialService.update().setSql("is_deleted = 1").eq("id",ids[0]).update();
}else {
materialService.update().setSql("is_deleted = 1").inSql("id",idList).update();
}
return R.success(null);
}