带有equals的Spring @RequestMapping标头 [英] Spring @RequestMapping header with equals

问题描述

我想用Spring @RequestMapping和header属性来检测值 application / json; version = 1的 Accept 头。* 。该计划将为版本2映射另一个方法，该版本的值将为 application / json; version = 2。* 。

春天似乎忽略了版本值。我猜它是把等号看作是另一个标题属性。

有没有办法解决这个问题？

附注：

1. 我无法更新Spring版本以支持消耗属性


2. 我无法更改请求标头的格式

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解决方案

似乎spring requestmapping会忽略媒体类型参数。
您可以通过手动将请求路由到您的首选终端来解决此问题。

  @RequestMapping（value =/ ），header =Accept = application / json）
 @ResponseBody 
字符串请求（@RequestHeader HttpHeaders标题）{
 for（MediaType mediaType：headers.getAccept（））{$ b $如果（mediaType.isCompatibleWith（MediaType.APPLICATION_JSON））{
 if（mediaType.getParameter（version）。startsWith（1。））{
 return v1（）; 
} else if（mediaType.getParameter（version）。startsWith（2。））{
 return v2（）; 
} 
} 
} 
返回错误; 
} 
  




I want to use Springs @RequestMapping with the header attribute to detect an Accept header with the value application/json;version=1.*. The plan is to have another method mapped similarly for version 2 which will have the value application/json;version=2.*.

Spring seems to be ignoring the version value. I'm guessing it's treating the equals sign as another header attribute.

Is there a way around this?

Side notes:

1. I can't update the Spring version to support the consumes attribute
2. I can't change the format the request header will come in

解决方案

It seems that the spring requestmapping ignores media type parameters. You can work around this by manually routing the request to your preferred endpoint.

@RequestMapping(value = "/", headers = "Accept=application/json")
@ResponseBody
String request(@RequestHeader HttpHeaders headers){
    for(MediaType mediaType : headers.getAccept()){
        if(mediaType.isCompatibleWith(MediaType.APPLICATION_JSON)){
            if(mediaType.getParameter("version").startsWith("1.")){
                return v1();
            }else if(mediaType.getParameter("version").startsWith("2.")){
                return v2();
            }
        }
    }
    return "error";
}

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