java中HttpURLConnection 添加请求头

可以使用 HttpURLConnection 的 setRequestProperty 方法来添加请求头，例如：

HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("User-Agent", "Mozilla/5.0");

其中，"User-Agent" 是一个常见的请求头，用于告诉服务器请求的客户端类型。你可以根据需要添加其它请求头。

相关问题

HttpURLconnection添加请求头

要在HttpURLConnection中添加请求头，可以使用setRequestProperty方法。例如，可以使用以下代码设置content-type和token请求头：

HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestProperty("Content-type", "application/json");
connection.setRequestProperty("token", "10051:abc");

另外，对于HttpPost请求，可以使用addHeader方法添加请求头。例如：

HttpPost httppost = new HttpPost(url);
httppost.addHeader("Authorization", "your token");
httppost.addHeader("Content-Type", "application/json");
httppost.addHeader("User-Agent", "imgfornote");

这样就可以向HttpURLConnection或HttpPost请求中添加请求头了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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HttpURLConnection如何添加请求头？

可以使用 `setRequestProperty` 方法来添加请求头，示例如下：

URL url = new URL("http://www.example.com");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("User-Agent", "Mozilla/5.0");

在上面的示例中，我们添加了 `User-Agent` 请求头。可以通过多次调用 `setRequestProperty` 方法来添加更多的请求头。