HttpURLConnnection

最新推荐文章于 2024-04-30 19:33:33 发布

danny1991

最新推荐文章于 2024-04-30 19:33:33 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/danny1991/article/details/50232535

本文提供了一个Java实例，展示了如何通过HTTP连接获取服务器响应，并演示了如何向服务器提交数据。包括获取HTTP响应、解析响应内容、设置请求方法、请求头和数据提交流程。

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<pre name="code" class="java">//获取http响应
public static void read() throws IOException {
	URL url = new URL("http://localhost:8080/ServletDemo1");
	HttpURLConnection content = (HttpURLConnection) url.openConnection();


	BufferedReader br = new BufferedReader(new InputStreamReader(content.getInputStream()));
	String s = br.readLine();

	String server = content.getHeaderField("Server");
	int responseCode = content.getResponseCode();

	System.out.println(s);
	System.out.println(server);
	System.out.println(responseCode);
}

写数据，getResponse代表请求结束！

//提交http请求给服务器
public static void write() throws IOException {
	URL url =new URL("http://localhost:8080/ServletDemo1");
	HttpURLConnection conn = (HttpURLConnection) url.openConnection();

	//写请求方法
	conn.setRequestMethod("post");

	//写header
	conn.setRequestProperty("xxx","yyy");

	//写数据
	conn.setDoOutput(true);
	OutputStream out = conn.getOutputStream();
	out.write("name=flx".getBytes());

	conn.getResponseCode();
}