spring boot+前端ajax请求通讯

前端JS  $.ajax({        type: 'post',        url: 'http://localhost:8080/web/plan/getProcess2',        data: {planId: planId, planName: ""},        beforeSend: function (XMLHttpRequest) {                   },        success: function (data, status) {            alert("msg: " + data.msg);        },        complete: function (XMLHttpRequest, textStatus) {        },        error: function () {        }    });

后台Controller@ApiOperation(value = "test", notes = "test")    @RequestMapping(value = "/getProcess2", method = RequestMethod.POST)    @ResponseBody    public Map getProcessValues2(CheckStockPlan checkStockPlan) {        Map<String, Object> map = new HashMap<>();        //        map.put("msg", "我是后台来的数据");        System.out.println("计划单号:  " + checkStockPlan.toString());        return map;    }