Apache HttpComponents 文件上传例子

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package org.apache.http.examples.entity.mime;



import java.io.File;



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.mime.MultipartEntity;

import org.apache.http.entity.mime.content.FileBody;

import org.apache.http.entity.mime.content.StringBody;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.util.EntityUtils;



/**

 * Example how to use multipart/form encoded POST request.

 */

public class ClientMultipartFormPost {



    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();

        try {

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

                    "/servlets-examples/servlet/RequestInfoExample");



            FileBody bin = new FileBody(new File(args[0]));

            StringBody comment = new StringBody("A binary file of some kind");



            MultipartEntity reqEntity = new MultipartEntity();

            reqEntity.addPart("bin", bin);

            reqEntity.addPart("comment", comment);



            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());

            }

            EntityUtils.consume(resEntity);

        } finally {

            try { httpclient.getConnectionManager().shutdown(); } catch (Exception ignore) {}

        }

    }

    

}