package com.coderising.download; import org.junit.After; import org.junit.Before; import org.junit.Test; import com.coderising.download.api.ConnectionManager; import com.coderising.download.api.DownloadListener; import com.coderising.download.impl.ConnectionManagerImpl; public class FileDownloaderTest { boolean downloadFinished = false; @Before public void setUp() throws Exception { } @After public void tearDown() throws Exception { } @Test public void testDownload() { String url = "http://www.ibm.com/developerworks/cn/opensource/os-ecbug/fig1.jpg";//下载地址 String path="D:/test/3.jpg";//保存地址 int threadNum=5;//线程数 FileDownloader downloader = new FileDownloader(url,path,threadNum); ConnectionManager cm = new ConnectionManagerImpl(); downloader.setConnectionManager(cm);//从网络读取 downloader.setListener(new DownloadListener() { @Override public void notifyFinished() { downloadFinished = true; } }); downloader.execute(); // 等待多线程下载程序执行完毕 while (!downloadFinished) { try { System.out.println("还没有下载完成,休眠五秒"); //休眠5秒 Thread.sleep(5000); } catch (InterruptedException e) { e.printStackTrace(); } } System.out.println("下载完成!"); } }