执行URL Post

/*

 * Copyright (C) 2014 The Android Open Source Project

 *

 * Licensed 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.

 */

//package com.nowjava;

import java.io.BufferedInputStream;/** 时 代 J a v a - N o w J a v a . c o m 提供 **/

import java.io.BufferedOutputStream;

import java.io.ByteArrayOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;


import java.net.HttpURLConnection;

import java.net.URL;

import java.util.Map;


public class Main {

    public static byte[] executePost(String url, byte[] data,

            Map<String, String> requestProperties) throws IOException {

        HttpURLConnection urlConnection = null;

        try {

            urlConnection = (HttpURLConnection) new URL(url)

                    .openConnection();
                    /*
                    NowJava.com 提供
                    */

            urlConnection.setRequestMethod("POST");

            urlConnection.setDoOutput(data != null);

            urlConnection.setDoInput(true);

            if (requestProperties != null) {

                for (Map.Entry<String, String> requestProperty : requestProperties

                        .entrySet()) {

                    urlConnection.setRequestProperty(

                            requestProperty.getKey(),

                            requestProperty.getValue());

                }

            }

            if (data != null) {

                OutputStream out = new BufferedOutputStream(

                        urlConnection.getOutputStream());

                out.write(data);

                out.close();

            }

            InputStream in = new BufferedInputStream(

                    urlConnection.getInputStream());

            return convertInputStreamToByteArray(in);

        } finally {

            if (urlConnection != null) {

                urlConnection.disconnect();

            }

        }

    }


    private static byte[] convertInputStreamToByteArray(

            InputStream inputStream) throws