Question

我的应用使用jsoup lib从网上下载数据。下载它的节目时没有找到这样的文件或目录。我使用CMD手动制作了SD卡。但仍然得到错误。不知道如何解决这个问题。

主题代码

final ProgressDialog progressDialog = new ProgressDialog(Edit.this);
            progressDialog.show();
            progressDialog.setCancelable(false);
            new Thread(new Runnable() {
                @Override
                public void run() {
                    try{
                    new WebCopier.Copier( url, Environment.getExternalStorageDirectory().getAbsolutePath() + "/OfflineBrowser/" + title,
                            maxDepth, bDownloadImages, bDownloadAudio, bDownloadVideo).run();
                    progressDialog.dismiss();
                    }
                    catch (Exception e)
                    {
                        fn_ShowMsg("Error 1:" +e.toString());
                    }
                }
            }).start();
        }

复印机代码

 public static void save ( String filename, String url ) throws Exception
{
    org.jsoup.Connection conn = Jsoup.connect( url );
    conn.timeout( 60000 );
    conn.userAgent( "Mozilla/5.0 (Linux; U; Android 2.3.5; en-us; HTC Vision Build/GRI40) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1" );
    conn.ignoreContentType( true );
    byte[] data = conn.execute().bodyAsBytes();
    save( filename, data );
}

public static void save ( String filename, byte[] data ) throws Exception
{
    print( "Saving file %s", filename );
    if (filename.startsWith("file://")){
        URL url = new URL(filename);
        filename = url.getPath();
    }

    FileOutputStream os = new FileOutputStream(filename);
    os.write( data );
    os.close();
}

错误

09-23 14:22:{35.377: DEBUG/Output(345): * link <https://play.google.com/store?hl=da> (alternate)
09-23 14:22:38.026: DEBUG/dalvikvm(345): GC_FOR_MALLOC freed 1549K, 42% free 7714K/13127K, external 929K/1038K, paused 246ms
09-23 14:22:38.115: DEBUG/Output(345): Saving file file:///file:/mnt/sdcard/OfflineBrowser/this /1oujn635h728x/lp1wij6q2wek
09-23 14:22:38.126: WARN/System.err(345): java.io.FileNotFoundException: /file:/mnt/sdcard/OfflineBrowser/this /1oujn635h728x/lp1wij6q2wek (No such file or directory)
09-23 14:22:38.136: WARN/System.err(345): at org.apache.harmony.luni.platform.OSFileSystem.open(Native Method)
09-23 14:22:38.146: WARN/System.err(345): at dalvik.system.BlockGuard$WrappedFileSystem.open(BlockGuard.java:232)
09-23 14:22:38.146: WARN/System.err(345): at java.io.FileOutputStream.<init>(FileOutputStream.java:94)
09-23 14:22:38.146: WARN/System.err(345): at java.io.FileOutputStream.<init>(FileOutputStream.java:165)
09-23 14:22:38.156: WARN/System.err(345): at java.io.FileOutputStream.<init>(FileOutputStream.java:144)
09-23 14:22:38.156: WARN/System.err(345): at com.example.offlinebrowser.WebCopier.save(WebCopier.java:431)
09-23 14:22:38.156: WARN/System.err(345): at com.example.offlinebrowser.WebCopier.save(WebCopier.java:420)
09-23 14:22:38.167: WARN/System.err(345): at com.example.offlinebrowser.WebCopier$Copier.run(WebCopier.java:178)
09-23 14:22:38.176: WARN/System.err(345): at com.example.offlinebrowser.WebCopier$Copier.run(WebCopier.java:232)
09-23 14:22:38.176: WARN/System.err(345): at com.example.offlinebrowser.Edit$2$1.run(Edit.java:75)
09-23 14:22:38.186: WARN/System.err(345): at java.lang.Thread.run(Thread.java:1019)

希望有人可以帮助我..

Answer 1

您需要检查您正在使用的目录是否已经创建..

if (filename.startsWith("file://")){
    URL url = new URL(filename);
    filename = url.getPath();
    File dir = new File(filename);
    if (!dir.exists()) // not exist? make it!
        dir.mkdirs();
}

在模拟器中找不到SD卡

1 个答案: