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Java example source code file (ClientChunkEncodedPost.java)

This example source code file (ClientChunkEncodedPost.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

clientchunkencodedpost, defaulthttpclient, exception, file, fileinputstream, httpclient, httpentity, httppost, httpresponse, inputstreamentity, io

The ClientChunkEncodedPost.java example source code

 * ====================================================================
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 * ====================================================================
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.

package org.apache.http.examples.client;

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");
        HttpClient httpclient = new DefaultHttpClient();

        HttpPost httppost = new HttpPost("http://localhost:8080" +

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

        InputStreamEntity reqEntity = new InputStreamEntity(
                new FileInputStream(file), -1);
        // 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"); 
        System.out.println("executing request " + httppost.getRequestLine());
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity resEntity = response.getEntity();

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

        // When HttpClient instance is no longer needed, 
        // shut down the connection manager to ensure
        // immediate deallocation of all system resources

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