前端ajax传递list集合，java后端接受list集合

var check_val=[];

$.ajax({
            url:"/recyM/resumeMemo",
            type:"post",
            data:{
                idList:check_val.toLocaleString()
            },
            dataType:"json",
            success:function (data) {
                  if (data==1){
                      history.go(0);
                  }
            }

        });

　　后端代码

package com.java.controller.recyle.memo;


import org.springframework.web.bind.annotation.RequestParam;

@Controller
@RequestMapping("/recyM")
public class RecyMemoController {
    private static  final Logger logger = LoggerFactory.getLogger(RecyMemoController.class);

    /**
     * 垃圾桶备忘录恢复
     * @param idList
     * @return
     */
    @PostMapping("/resumeMemo")
    @ResponseBody
    public String resumeMemo(@RequestParam(value = "idList") List<String> idList,HttpSession session){
        String user = (String) session.getAttribute("user");
        idList.stream().forEach(id->{
            resumeMemo.recoverMemo(id,user);
        });
        return "1";
    }




}