HttpClient Examples:Chunk encoded POST

官方主頁：http://hc.apache.org/

 

Components

• HttpCore
• HttpClient

Chunk encoded POST

This example shows how to stream out a request entity using chunk encoding.

 

块编码POST

 

这个例子显示怎样用块编码请求对象过来的流（流是输入输出流那种流，数据流）

 

package cn.lake.util;

import java.io.File;
import java.io.FileInputStream;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.InputStreamEntity;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 * Example how to use unbuffered chunk-encoded POST request.
 */
public class ClientChunkEncodedPost {

	public static void main(String[] args) throws Exception {
		if (args.length != 1) {
			System.out.println("File path not given");
			System.exit(1);
		}
		HttpClient httpclient = new DefaultHttpClient();

		HttpPost httppost = new HttpPost("http://localhost:8080" + "/servlets-examples/servlet/RequestInfoExample");

		File file = new File(args[0]);

		InputStreamEntity reqEntity = new InputStreamEntity(new FileInputStream(file), -1);
		reqEntity.setContentType("binary/octet-stream");
		reqEntity.setChunked(true);
		// It may be more appropriate to use FileEntity class in this particular 
		// instance but we are using a more generic InputStreamEntity to demonstrate
		// the capability to stream out data from any arbitrary source
		// 
		// FileEntity entity = new FileEntity(file, "binary/octet-stream"); 

		httppost.setEntity(reqEntity);

		System.out.println("executing request " + httppost.getRequestLine());
		HttpResponse response = httpclient.execute(httppost);
		HttpEntity resEntity = response.getEntity();

		System.out.println("----------------------------------------");
		System.out.println(response.getStatusLine());
		if (resEntity != null) {
			System.out.println("Response content length: " + resEntity.getContentLength());
			System.out.println("Chunked?: " + resEntity.isChunked());
		}
		if (resEntity != null) {
			resEntity.consumeContent();
		}
	}

}

 

 

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