httpclient4.x 编码

一、设置请求的编码

第一种方法：

在Hedaer中设置Content-Type

 HttpGet httpGet = new HttpGet(url);
 httpGet.addHeader("Content-Type", "text/html;charset=UTF-8");

第二种方法：

设置HttpClient的CONTENT_CHARSET

 HttpClient httpClient = new DefaultHttpClient();
 httpClient.getParams().setParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET, "UTF-8");

第三种方法：

设置get/post method的CONTENT_CHARSET

 HttpGet httpGet = new HttpGet(url);
 httpGet.getParams().setParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET, "UTF-8");

这三种设置方法的优先级依次递增，也就是说如果同时设置，则以后面的为准。如果都没有设置，默认charset是ISO-8859-1。

二、获取response的编码：

 HttpResponse response = httpClient.execute(httpGet);
 System.out.println(response.getParams().getParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET));

三、获取response内容：

 HttpEntity httpEntity =response.getEntity();
 BufferedReader br = new BufferedReader(new InputStreamReader(httpEntity.getContent(), "UTF-8"));
 String line;
 while((line = br.readLine()) != null){
     System.out.println(line);
 <pre name="code" class="java"><span style="white-space:pre">    </span>System.out.println("\n");</pre>}
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 <p></p>
 <p><span style="font-size:14px">也可在获得response后转码：</span></p>
 <p></p>
 <pre name="code" class="java">HttpEntity httpEntity =response.getEntity();
 <pre name="code" class="java">BufferedReader br = new BufferedReader(new InputStreamReader(httpEntity.getContent()));
 String line;
 while((line = br.readLine()) != null){
     System.out.println(new String(line.getBytes("ISO-8859-1"),"UTF-8"));
     System.out.println("\n");
 }   </pre>
 <pre></pre>
 <p></p>
 <pre></pre>
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 参考：<a href="http://blog.csdn.net/asdf2hjkl/article/details/8002026" target="_blank">httpclient4 中文版帮助文档，最新官方版翻译版（第一章 下）</a>
 <p><a href="http://blog.csdn.net/xingyue425/article/details/7258934" target="_blank">httpclient编码</a></p>
 <p><a href="http://blog.csdn.net/mgoann/article/details/4056297" target="_blank">HttpClient字符编码</a><br>
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 </p>

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