ajax将数组或list集合传到后台 的 【坑】

代码如下

function deleteChecked() {
            var orderNosList = new Array();
            var rows = $("#dataGrid").datagrid("getChecked");
            if (rows.length < 1) {
                $.messager.confirm("提醒", "请选择招聘信息！");
            } else {
                for (var i = 0; i < rows.length; i++) {
                    orderNosList[i] = rows[i].id;
                }
                var params = {
                    reserveOrderNoList : orderNosList
                };

                $.ajax({
                    url : '${ctx}/lf/ll_wb_job/deleteChecked',
                    data : JSON.stringify(params),
                    type : 'POST',
                    contentType : "application/json",
                    dataType : 'json',
                    success : function() {
                        console.log(data);
                    }
                });
            }
        }

前台页面、后台也不报错，就是获取不到

修改如下

function deleteChecked() {
    var rows = $("#dataGrid").datagrid("getChecked");
    var ids = [];
    if (rows.length < 1) {
        $.messager.confirm("提醒", "请选择招聘信息！");
    } else {
        for(var i=0; i<rows.length; i++){
            ids[i] = rows[i].id;
        }
        alert(ids)
            $.ajax({
            type: 'post',
            url: '${ctx}/lf/ll_wb_job/deleteChecked',
            data: {ids:ids},
            traditional: true,
            success: function (result) {
                console.log(result)
            },
            error: function(data){
                alert("操作异常");
            }
        }); 
    }
}

/**
    * 批量删除选中信息
    */
@RequiresPermissions("lf:ll_wb_job:delete")
@RequestMapping(value = "deleteChecked", method=RequestMethod.POST)
@ResponseBody
public Map<String, Object> deleteChecked(HttpServletRequest request, HttpServletResponse response,Model model, Long[] ids) throws Exception {
    Map<String, Object> jsonMap = new HashMap<String, Object>(); 
    try{  
        boolean result = ll_wb_job_service.deleteChecked(ids);
        if (result) {
            jsonMap.put("success", true);
            jsonMap.put("msg", "操作成功");
        } else {
            jsonMap.put("success", false);
            jsonMap.put("msg", "操作失败");
        }
    }catch (Exception e) {
        log.error("系统异常",e);
        jsonMap.put("success", false);
        jsonMap.put("msg", "操作失败");
    }
    return jsonMap;
}

https://blog.csdn.net/qq_32786873/article/details/80280869
https://blog.csdn.net/huaieli1/article/details/56678376/
https://blog.csdn.net/zengguanlin/article/details/80067816?utm_source=blogxgwz0