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我在android下載了一個zip文件，並且出現以下錯誤。下載zip文件時android中出現MalformedURLException
InputStream的連接爲null拋出的異常是
java.net.MalformedURLException: Protocol not found: www.songspk320.in/128/indian/Don-2-2011-128Kbps(Songs.PK).zip
at java.net.URL.<init>(URL.java:273)
at java.net.URL.<init>(URL.java:157)
at com.linkezzi.web.DownloadIconSetZIP.openInputStreamConnection(DownloadIconSetZIP.java:73)
at com.linkezzi.web.DownloadIconSetZIP.doInBackground(DownloadIconSetZIP.java:45)
at android.os.AsyncTask$2.call(AsyncTask.java:185)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
at java.lang.Thread.run(Thread.java:1019)
代碼如下。
public class DownloadIconSetZIP extends AsyncTask {
private File root = null;
private String url = null;
private File pathToLinkEziiIconSetRootFolder = null;
private File toBeExtracted = null;
private FileOutputStream fOut = null;
private Context mContext = null;
private InputStream input = null;
public DownloadIconSetZIP(Context mContext,String uriZIP){
this.url = uriZIP;
this.mContext = mContext;
}
protected Object doInBackground(Object[] params) {
if(this.url != null){
root = Environment.getExternalStorageDirectory();
try {
Log.e("Downloading Iconset in BackGround","URl = "+ url);
openInputStreamConnection();
Log.e("Iconset is Downloading from the URI = ",url.toUpperCase());
pathSetInLocalFileSystem();
downloadFile(input);
}catch(MalformedURLException malformedURLException){
malformedURLException.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
private void openInputStreamConnection() throws IOException,
MalformedURLException {
try {
HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
// conn.setDoInput(true);
conn.setConnectTimeout(30000); // timeout 10 secs
conn.connect();
input = conn.getInputStream();
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
private void downloadFile(InputStream input) throws IOException {
int byteCount = 0;
byte[] buffer = new byte[1024];
int bytesRead = -1;
while ((bytesRead = input.read(buffer)) != -1) {
fOut.write(buffer, 0, bytesRead);
byteCount += bytesRead;
}
fOut.flush();
fOut.close();
}
private void pathSetInLocalFileSystem() throws FileNotFoundException {
pathToLinkEziiIconSetRootFolder = searchFileInThisDirectory(root);
if(pathToLinkEziiIconSetRootFolder == null){
pathToLinkEziiIconSetRootFolder = new File(root.getAbsolutePath(),"LinkEziiIconsets");
if(!pathToLinkEziiIconSetRootFolder.exists() && pathToLinkEziiIconSetRootFolder.mkdir()){
Log.e("LinkEzii Iconset Container Folder is Created","LinkEzii Iconset Container Folder is Created");
}else{
Log.e("LinkEzii Iconset Container is Not Created","LinkEzii Iconset Container is Not Created");
}
}
File downloadedIconSetFile = new File(pathToLinkEziiIconSetRootFolder.getAbsolutePath(),"IconSetName Comes Here...");
if(!downloadedIconSetFile.exists()){
downloadedIconSetFile.mkdir();
Log.e("Container is Created for Iconset","Container is Created for iconset");
}
if(downloadedIconSetFile!=null){
toBeExtracted = new File(downloadedIconSetFile, "IconSet Zip Format.zip");
fOut = new FileOutputStream(toBeExtracted);
}
}
private File searchFileInThisDirectory(File file) throws NullPointerException {
if(file == null){
throw new NullPointerException();
}
File[] listFiles = file.listFiles();
File pathToLinkEziiIconSetRootFolder = null;
for(File searchIT: listFiles){
if(file.isDirectory() && file.getName().equals("LinkEziiIconsets")){
pathToLinkEziiIconSetRootFolder = file;
return pathToLinkEziiIconSetRootFolder;
}
}
return pathToLinkEziiIconSetRootFolder;
}
protected void onCancelled() {
super.onCancelled();
Log.i("Downloading is Cancelled","Download is Cancelled");
}
protected void onPostExecute(Object result) {
super.onPostExecute(result);
// Decompressing the File
if(toBeExtracted != null){
// Just to Move the Decompressing to the Back Ground Thread
new Thread(new Runnable() {
@Override
public void run() {
DecompressDownloadedDiagram decompressdDownloadedDiagram = new DecompressDownloadedDiagram(toBeExtracted.getPath(), toBeExtracted.getPath(),toBeExtracted);
decompressdDownloadedDiagram.unzip();
toBeExtracted.delete();
}
}).start();
Toast.makeText(mContext, "Icons Set is Successfully Downloaded", Toast.LENGTH_LONG).show();
}else{
Toast.makeText(mContext, "Error! while downloading diagram", Toast.LENGTH_LONG).show();
Log.e("Some Error Occure While Downloading Diagram","Some Error Occure While Downloading Diagram");
}
Log.i("Downloading is Successful","Downloading is Successful");
}
protected void onPreExecute() {
super.onPreExecute();
Log.i("Downloading is Starting","Downloading is Starting");
}
protected void onProgressUpdate(Object[] values) {
super.onProgressUpdate(values);
Log.i("Downlaoding is in Progress","Downloading is in Progress");
}
}
也許在「www」之前加上「http：//」？ – iCantSeeSharp 2011-12-15 16:17:42
Dude它不工作通過添加http：//。 – 2011-12-15 16:18:35