如何找到mimetype的响应 [英] How to find mimetype of response

问题描述

我正在处理使用Apache HTTP客户端发出的GET请求（v4-最新版本;而不是旧版本的v3）...

I am working with a GET request made using Apache HTTP client (v4- the latest version; not the older v3)...

我如何获得响应的mimetype？

How do I obtain the mimetype of the response?

在apache http客户端的旧v3中，使用以下代码获取mime类型 -

In the older v3 of apache http client, mime type was obtained using following code--

 String mimeType = response.getMimeType();

如何使用apache http客户端的v4获取mimetype？

How do I get the mimetype using v4 of apache http client?

推荐答案

内容类型HTTP标头应该为您提供mime类型信息：

A "Content-type" HTTP header should give you mime type information:

Header contentType = response.getFirstHeader("Content-Type");

或

Header contentType = response.getEntity().getContentType();

然后你可以提取mime类型本身，因为内容类型也可能包含编码。

Then you can extract mime type itself as the content-type may include encoding as well.

String mimeType = contentType.getValue().split(";")[0].trim();

当然，在获取标题值之前不要忘记进行空值检查（如果是服务器不发送内容类型标题。

Of course, don't forget about null-check before getting value of the header (in case the content-type header is not sent by server).

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