Java tutorial
/**************************************************************************************** * Copyright (c) 2013 Bibek Shrestha <bibekshrestha@gmail.com> * * Copyright (c) 2013 Zaur Molotnikov <qutorial@gmail.com> * * Copyright (c) 2013 Nicolas Raoul <nicolas.raoul@gmail.com> * * Copyright (c) 2013 Flavio Lerda <flerda@gmail.com> * * * * This program is free software; you can redistribute it and/or modify it under * * the terms of the GNU General Public License as published by the Free Software * * Foundation; either version 3 of the License, or (at your option) any later * * version. * * * * This program is distributed in the hope that it will be useful, but WITHOUT ANY * * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A * * PARTICULAR PURPOSE. See the GNU General Public License for more details. * * * * You should have received a copy of the GNU General Public License along with * * this program. If not, see <http://www.gnu.org/licenses/>. * ****************************************************************************************/ package com.nit.vicky.web; import android.content.Context; import com.nit.utils.DiskUtil; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.protocol.BasicHttpContext; import org.apache.http.protocol.HttpContext; import java.io.BufferedReader; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.nio.charset.Charset; /** * Helper class to donwload from web. * <p> * Used in AsyncTasks in Translation and Pronunication activities, and more... */ public class HttpFetcher { public static String fetchThroughHttp(String address) { return fetchThroughHttp(address, "utf-8"); } public static String fetchThroughHttp(String address, String encoding) { try { HttpClient httpClient = new DefaultHttpClient(); HttpContext localContext = new BasicHttpContext(); HttpGet httpGet = new HttpGet(address); HttpResponse response = httpClient.execute(httpGet, localContext); if (!response.getStatusLine().toString().contains("OK")) { return "FAILED"; } BufferedReader reader = new BufferedReader( new InputStreamReader(response.getEntity().getContent(), Charset.forName(encoding))); StringBuilder stringBuilder = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { stringBuilder.append(line); } return stringBuilder.toString(); } catch (Exception e) { return "FAILED with exception: " + e.getMessage(); } } // public static String downloadFileToCache(String UrlToFile, Context context, String prefix) // { // try // { // URL url = new URL(UrlToFile); // // String extension = UrlToFile.substring(UrlToFile.length() - 4); // // HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); // urlConnection.setRequestMethod("GET"); // urlConnection.setDoOutput(true); // urlConnection.connect(); // // File outputDir = context.getCacheDir(); // File file = File.createTempFile(prefix, extension, outputDir); // // FileOutputStream fileOutput = new FileOutputStream(file); // InputStream inputStream = urlConnection.getInputStream(); // // byte[] buffer = new byte[1024]; // int bufferLength = 0; // // while ((bufferLength = inputStream.read(buffer)) > 0) // { // fileOutput.write(buffer, 0, bufferLength); // } // fileOutput.close(); // // return file.getAbsolutePath(); // // } // catch (Exception e) // { // return "FAILED " + e.getMessage(); // } // } public static String downloadFileToSdCard(String UrlToFile, Context context, String prefix, Boolean isMP3) { String str = downloadFileToSdCardMethod(UrlToFile, context, prefix, "GET", isMP3); if (str.startsWith("FAIL")) { str = downloadFileToSdCardMethod(UrlToFile, context, prefix, "POST", isMP3); } return str; } public static String downloadFileToSdCardMethod(String UrlToFile, Context context, String prefix, String method, Boolean isMP3) { try { URL url = new URL(UrlToFile); String extension = ".mp3"; if (!isMP3) extension = UrlToFile.substring(UrlToFile.lastIndexOf(".")); HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setConnectTimeout(10 * 1000); urlConnection.setReadTimeout(10 * 1000); urlConnection.setRequestMethod(method); //urlConnection.setRequestProperty("Referer", "http://mm.taobao.com/"); urlConnection.setRequestProperty("User-Agent", "Mozilla/5.0 ( compatible ) "); urlConnection.setRequestProperty("Accept", "*/*"); urlConnection.connect(); File file = File.createTempFile(prefix, extension, DiskUtil.getStoringDirectory()); FileOutputStream fileOutput = new FileOutputStream(file); InputStream inputStream = urlConnection.getInputStream(); byte[] buffer = new byte[1024]; int bufferLength = 0; while ((bufferLength = inputStream.read(buffer)) > 0) { fileOutput.write(buffer, 0, bufferLength); } fileOutput.close(); return file.getAbsolutePath(); } catch (Exception e) { return "FAILED " + e.getMessage(); } } }