多个数组怎么批量插入到mybatis？

先把数组存入数组（直接放代码不细说，重点是我这数组怎么来的）

 let oid = document.getElementsByName("checkbox_name");
        $('.submit_btn').on('click', function () {
                let ids = "";
                let userids = "";
                let titles = "";
                let n = 0;
                let a = 0;
                let b = 0;
                for (let i = 0; i < oid.length; i++) {
                    if (oid[i].checked == true) {//选中为true
                        const row = $(oid[i]).parent("td").parent("tr");//获取选中行
                        const userid = row.find("[name='userid']").val();//获取userid
                        const title = row.find("[name='title']").val();//获取title
                        let id = oid[i].value;
                        if (n == 0) {
                            ids += id;
                        } else {
                            ids += "," + id;
                        }
                        if (a == 0) {
                            userids += userid;
                        } else {
                            userids += "," + userid;
                        }
                        if (b == 0) {
                            titles += title;
                        } else {
                            titles += "," + title;
                        }
                        b++;
                        n++;
                        a++;
                    }
                }
                // const row = $(oid).parent("td").parent("tr");//获取选中行
                // const userid = row.find("[name='userid']").val();//获取userid
                // alert(userids + "userid");
                if (!ids) {
                    layer.alert('选中之后再点击确定啦');
                } else {
                    let data = {
                        ids: ids,
                        userids: userids,
                        titles: titles,
                        label: $('input:radio:checked').val()
                    };
                    $.ajax({
                        type: "Post",
                        url: "insert_discover",
                        // contentType: "charset=utf-8",
                        data: data,
                        dataType: "json",
                        success: function (result) {
                            if (result.resultCode == 200) {
                                layer.msg('操作成功！');
                            }
                            if (result.resultCode == 404) {
                                layer.msg('操作失败！');
                            }
                            setTimeout(function () {
                                window.location.reload();//刷新当前页面.
                            }, 2000)
                        },
                        error: function (data) {
                            layer.alert('失败');
                        }
                    });
                }

            }
        )

controller接受：

@RequestMapping("insert_discover")
    @ResponseBody
    public Map insert_discover(@RequestParam("ids") String ids, @RequestParam("userids") String userids, @RequestParam("titles") String titles, @RequestParam("label") String label, HttpSession session) {
        Map map = new HashMap<>();
        System.out.println(ids);
        List fid = Arrays.asList(ids.split(","));
        List userid = Arrays.asList(userids.split(","));
        List title = Arrays.asList(titles.split(","));
        List

 就是把它们转成list，然后把好几个list存入map，这个map作为参数传入xml。

service层：

 public void insert(List

mapper层

 void insertDiscover(@Param("mapList") List

xml

    
        insert into discover ( fid, title,
        label, userid)
        values
      
        (#{map.fid}, #{map.title}, #{label},#{map.userid})
      
    

OK