Spring Rest Service中的可选请求标头

Question

我正在使用Spring Restful Web服务并且请求正文包含请求标头,如下所示:

@RequestMapping(value = "/mykey", method = RequestMethod.POST, consumes="applicaton/json")
public ResponseEntity<String> getData(@RequestBody String body, @RequestHeader("Auth") String authorization)  {
try {
    ....
} catch (Exception e) {
    ....
}
}

我想传递一个名为"X-MyHeader"的可选请求标头.如何在Spring休息服务中指定此可选请求标头？

另外,如何在响应头中传递相同的值？谢谢!

更新:我刚刚发现我可以在请求标头中设置required = false,因此解决了一个问题.现在,剩下的唯一问题是如何在响应中设置标题？

Answer 1

使用required=false您的@RequestHeader：

@RequestMapping(value = "/mykey", method = RequestMethod.POST, 
consumes="applicaton/json")
public ResponseEntity<String> getData(@RequestBody String body, 
@RequestHeader(value = "Auth", required = false) String authorization)  {
    try {
   ....
    } catch (Exception e) {
        ....
    }
}

Answer 2

这个问题在这里得到解答： In Spring MVC, how can I set the mime type header when using @ResponseBody

这是来自以下位置的代码示例：http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/mvc.html#mvc-ann-httpentity

@RequestMapping("/something")
public ResponseEntity<String> handle(HttpEntity<byte[]> requestEntity) throws UnsupportedEncodingException {
  String requestHeader = requestEntity.getHeaders().getFirst("MyRequestHeader");
  byte[] requestBody = requestEntity.getBody();
  // do something with request header and body

  HttpHeaders responseHeaders = new HttpHeaders();
  responseHeaders.set("MyResponseHeader", "MyValue");
  return new ResponseEntity<String>("Hello World", responseHeaders, HttpStatus.CREATED);
}