ajax 前后端交互例子

前端：
$.ajax({
    type: 'post',
    url: "/system/dept/selectExcelTask",
    success: function (result) {
　　　　　　console.log("result.task_id:"+result.dept_excel_path);

    }
})

 

后端：

@PostMapping("/selectExcelTask")
@ResponseBody
public AjaxResult  getUploadPath(){
    Map<String, Object> paramMap = new HashMap<String, Object>();
    String dept_excel_path = "123";
    paramMap.put("dept_excel_path", dept_excel_path);
    return success().put("dept_excel_path", dept_excel_path);
}