org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing

org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public com.crm.lessn.utils.DataResult com.crm.lessn.controller.MyClientController.query_contact_records(java.lang.String)

出现这个是问题请求出问题，将@RequestBody去掉即可（这里发的get请求）

　　　　　　　　　　　　　　　　　　　　$.ajax({
                                    type: "GET",
                                    url: "/api/query_contact_records",
                                    async: false, //改为同步请求
                                    contentType: 'application/json;charset=UTF-8',
                                    data: data.customer_submodule_id,
                                    dataType: 'json',
                                    beforeSend: function (request) {
                                        request.setRequestHeader("authorization", CoreUtil.getData("access_token"));
                                        request.setRequestHeader("refreshToken", CoreUtil.getData("refresh_token"));
                                    },
                                    complete: function (res) {

                                    },
                                    success: function (res) {

                                    },
                                    error: function (data) {

                                    }
                                });

后端接收

        @GetMapping("/query_contact_records")
        @ApiOperation(value = "查询联系记录列表接口")
        @MyLog(title = "联系记录",action = "联系记录查询")
        public DataResult query_contact_records(String customer_submodule_id) {
            DataResult result =DataResult.success();
            System.out.println(customer_submodule_id);
/*            List<Contact_Person> contact_person = contact_personMapper.selectByPrimaryKey(customer_submodule_id);
            result.setData(contact_person);*/
            return result;
        }