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 = "https://ss0.baidu.com/-Po3dSag_xI4khGko9WTAnF6hhy/super/crop=378,138,1512,942/sign=9cca06797b3e6709aa4f1fbf06f4a805/f9198618367adab471a1e11d8fd4b31c8701e47f.jpg"; FileDownloader downloader = new FileDownloader(url, "C:/Users/Administrator/Desktop/1.jpg"); ConnectionManager cm = new ConnectionManagerImpl(); downloader.setConnectionManager(cm); 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(100); } catch (InterruptedException e) { e.printStackTrace(); } } System.out.println("下载完成!"); } }