如何在Spring mvc中使用新的httpstatus代码进行响应

Question

我正在使用spring MVC创建Rest Web服务。并希望发送213代码状态作为响应。但是在类org.springframework.http.HttpStatus和类ResponseEntity（T body,HttpStatus statusCode）accept HttpStatus类型中不存在此代码。我们如何处理发送此httpStatus代码？下面是伪代码：

 public ResponseEntity<?> getEvents() {
   //1. call Service 1
   // 2. use result of service 1 to call service 2

   // 3. use result of service 2 to call service 3

   // 4. create result and map it in DTO object

   if( result of service 1 is empty) return empty result with status 213
   if( result of service 2 is empty) return empty result with status 214

    return new ResponseEntity(result.getBody(), status code) ;;
}

Answer 1

我想出了一个相当古怪但却相当简单容易的变通方法：

new ResponseEntity<String>(
    "my body", 
    null, 
    HttpStatus.I_AM_A_TEAPOT /*status doesn't matter, just has to be anything*/
) {
    @Override
    public int getStatusCodeValue() {
        return MY_CUSTOM_RESPONSE_CODE;
    }
};