一、post请求传对象：
（1）传参注解：
public Object getName(@RequestBody Student student){
return "";
}
注：传参用@RequestBody，而非@RequestParam;
(2)用postman发送请求
二、解决406问题
HTTP Status 406 -
@RequestMapping(value = "/v2/expresscallback/kuaidi100/expressNotify", method = RequestMethod.POST，produces = "text/html;charset=UTF-8")
去掉 ，produces = "text/html;charset=UTF-8" 即可
