文件传输

最新推荐文章于 2021-05-27 12:32:45 发布

转载最新推荐文章于 2021-05-27 12:32:45 发布 · 128 阅读

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原文链接：https://my.oschina.net/PagodaTree/blog/716026

本文介绍如何使用Java的HttpClient库将文件作为二进制流上传至服务器。通过设置代理、连接超时时间、Socket配置及重试策略，演示了完整的文件上传过程，并展示了如何读取文件内容并将其封装为请求实体。

Java 版本Client 传文件到服务器

使用httpclient

代码：

public class BytePost {

	/**
	 * @param args
	 * @throws IOException
	 * @throws ClientProtocolException
	 */
	public static void main(String[] args) throws ClientProtocolException, IOException {
		// Charset CharSet = "UTF-8";
		HttpHost proxy = new HttpHost("127.0.0.1", 8888);
		TimeUnit connTimeToLiveTimeUnit = TimeUnit.SECONDS;
		String doc = null;
		String UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.87 Safari/537.36";
		HttpClientBuilder httpClientBuilder = HttpClients.custom().setConnectionTimeToLive(2, connTimeToLiveTimeUnit);
		httpClientBuilder.setUserAgent(UserAgent).setProxy(proxy);
		SocketConfig socketConfig = SocketConfig.custom().setSoKeepAlive(true).setTcpNoDelay(true).build();
		httpClientBuilder.setDefaultSocketConfig(socketConfig);
		// 重试3次
		httpClientBuilder.setRetryHandler(new DefaultHttpRequestRetryHandler(3, true));
		HttpClient httpClient = httpClientBuilder.build();
		// 文件上传协议
		// MultipartEntityBuilder builder = MultipartEntityBuilder.create();
		// byte[] b = FileUtils.readFileToByteArray(new File("pom.xml"));
		// builder.addBinaryBody("array", b);
		//// builder.addBinaryBody("image", new FileInputStream(new
		// File("pom.xml")));
		// HttpEntity entity = builder.build();

		HttpPost post = new HttpPost("http://localhost:7010/byte");
		// body 传输二级制流
		post.setEntity(new ByteArrayEntity(FileUtils.readFileToByteArray(new File("1.png"))));
		// post.setEntity(entity);
		HttpResponse response = httpClient.execute(post);
		String responseBody = EntityUtils.toString(response.getEntity());
		System.out.println(responseBody);

	}

}

转载于:https://my.oschina.net/PagodaTree/blog/716026