在android中下载文件时,java.util.zip.GZIPInputStream.readFully
我已经允许上网,并且 当我试图从url下载doc文件时,得到了java.io.EOFException 在我的例子中,当我在浏览器中点击url时,文档在pc中成功下载,但在我的设备上不起作用在android中下载文件时,java.util.zip.GZIPInputStream.readFully,java,android,Java,Android,我已经允许上网,并且 当我试图从url下载doc文件时,得到了java.io.EOFException 在我的例子中,当我在浏览器中点击url时,文档在pc中成功下载,但在我的设备上不起作用 class DownloadFileFromURL extends AsyncTask<String, String, String> { /** * Before starting background thread * Show Prog
class DownloadFileFromURL extends AsyncTask<String, String, String> {
/**
* Before starting background thread
* Show Progress Bar Dialog
*/
@SuppressWarnings("deprecation")
@Override
protected void onPreExecute() {
super.onPreExecute();
try {
pDialog = new ProgressDialog(getApplicationContext());
pDialog.setMessage("Downloading file. Please wait...");
pDialog.setCancelable(false);
pDialog.show();
} catch (Exception anfe) {
}
}
/**
* Downloading file in background thread
*/
@Override
protected String doInBackground(String... f_url) {
int count;
String downloadedPath = null;
try {
String urlStr = f_url[0];
String fileName = urlStr.substring(urlStr.lastIndexOf('/') + 1);
URL url1 = new URL(urlStr);
URI uri = new URI(url1.getProtocol(), url1.getUserInfo(), url1.getHost(), url1.getPort(), url1.getPath(), url1.getQuery(), url1.getRef());
url1 = uri.toURL();
String encodeUrl = url1.toString();
final String extension = android.webkit.MimeTypeMap.getFileExtensionFromUrl(urlStr);
File file = new File(Environment.getExternalStorageDirectory() + "/file/downloaded");
if (!file.exists()) {
file.mkdirs();
}
downloadedPath = file.getAbsolutePath() + "/" + md5String + "." + extension;
URL url = new URL(encodeUrl);
URLConnection conection = url.openConnection();
conection.setRequestProperty( "Accept-Encoding", "" );
conection.connect();
// getting file length
int lenghtOfFile = conection.getContentLength();
// input stream to read file - with 8k buffer
InputStream input = new BufferedInputStream(url.openStream(), 20000);
// Output stream to write file
OutputStream output = new FileOutputStream(downloadedPath);
byte data[] = new byte[1024];
long total = 0;
while ((count = input.read(data)) != -1) {
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
publishProgress("" + (int) ((total * 100) / lenghtOfFile));
// writing data to file
output.write(data, 0, count);
}
// flushing output
output.flush();
// closing streams
output.close();
input.close();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return downloadedPath;
}
/**
* Updating progress bar
*/
protected void onProgressUpdate(String... progress) {
// setting progress percentage
// pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
* After completing background task
* Dismiss the progress dialog
* *
*/
@Override
protected void onPostExecute(String file_url) {
// dismiss the dialog after the file was downloaded
try {
pDialog.dismiss();
// Displaying downloaded image into image view
// Reading image path from sdcard
if (file_url!=null){
openDocument(file_url);
}
} catch (Exception anfe) {
}
}
}
class DownloadFileFromURL扩展异步任务{
/**
*在启动后台线程之前
*显示进度条对话框
*/
@抑制警告(“弃用”)
@凌驾
受保护的void onPreExecute(){
super.onPreExecute();
试一试{
pDialog=newprogressdialog(getApplicationContext());
setMessage(“正在下载文件,请稍候…”);
pDialog.setCancelable(假);
pDialog.show();
}捕获(异常anfe){
}
}
/**
*在后台线程中下载文件
*/
@凌驾
受保护的字符串doInBackground(字符串…f_url){
整数计数;
字符串downloadedPath=null;
试一试{
字符串urlStr=f_url[0];
字符串文件名=urlStr.substring(urlStr.lastIndexOf('/')+1);
URL url1=新URL(urlStr);
URI=新URI(url1.getProtocol()、url1.getUserInfo()、url1.getHost()、url1.getPort()、url1.getPath()、url1.getQuery()、url1.getRef());
url1=uri.toURL();
字符串encodeUrl=url1.toString();
最终字符串扩展名=android.webkit.MimeTypeMap.getFileExtensionFromUrl(urlStr);
File File=新文件(Environment.getExternalStorageDirectory()+“/File/download”);
如果(!file.exists()){
mkdirs()文件;
}
downloadedPath=file.getAbsolutePath()+“/”+md5String+“+”+扩展名;
URL URL=新URL(编码URL);
URLConnection conconnection=url.openConnection();
setRequestProperty(“接受编码”,“接受编码”);
conconnect.connect();
//获取文件长度
int lenghtOfFile=conconnect.getContentLength();
//读取文件的输入流-带8k缓冲区
InputStream输入=新的BufferedInputStream(url.openStream(),20000);
//输出流以写入文件
OutputStream output=新文件OutputStream(下载路径);
字节数据[]=新字节[1024];
长总计=0;
而((计数=输入。读取(数据))!=-1){
总数+=计数;
//发布进度。。。。
//在此之后,将调用onProgressUpdate
出版进度(“+(int)((总计*100)/长度文档));
//将数据写入文件
输出.写入(数据,0,计数);
}
//冲洗输出
output.flush();
//合流
output.close();
input.close();
}捕获(格式错误){
//TODO自动生成的捕捉块
e、 printStackTrace();
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
捕获(例外e){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
返回下载路径;
}
/**
*更新进度条
*/
受保护的void onProgressUpdate(字符串…进度){
//设置进度百分比
//pDialog.setProgress(Integer.parseInt(progress[0]));
}
/**
*完成后台任务后
*关闭进度对话框
* *
*/
@凌驾
受保护的void onPostExecute(字符串文件\u url){
//下载文件后关闭对话框
试一试{
pDialog.disclose();
//在图像视图中显示下载的图像
//从SD卡读取图像路径
如果(文件url!=null){
openDocument(文件\ url);
}
}捕获(异常anfe){
}
}
}
10-05 19:30:16.576:W/System.err(9074):java.io.EOFException 10-05
19:30:16.576:W/系统错误(9074):在
java.util.zip.GZIPInputStream.readFully(GZIPInputStream.java:202)
10-05 19:30:16.576:W/系统错误(9074):在
java.util.zip.GZIPInputStream.(GZIPInputStream.java:98)10-05
19:30:16.576:W/系统错误(9074):在
java.util.zip.GZIPInputStream.(GZIPInputStream.java:81)10-05
19:30:16.576:W/系统错误(9074):在
com.android.okhttp.internal.http.HttpEngine.initContentStream(HttpEngine.java:468)
10-05 19:30:16.576:W/系统错误(9074):在
com.android.okhttp.internal.http.HttpEngine.readResponse(HttpEngine.java:666)
10-05 19:30:16.576:W/系统错误(9074):在
com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:347)
10-05 19:30:16.576:W/系统错误(9074):在
com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296)
10-05 19:30:16.576:W/系统错误(9074):在
com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179)
10-05 19:30:16.576:W/系统错误(9074):在
java.net.URL.openStream(URL.java:470)10-0519:30:16.576:
带系统错误(9074):在
demo.openfile.MainActivity$DownloadFileFromURL.doInBackground(MainActivity.java:129)
10-05 19:30:16.576:W/系统错误(9074):在
demo.openfile.MainActivity$DownloadFileFromURL.doInBackground(MainActivity.java:1)
10-05 19:30:16.576:W/系统错误(9074):在
android.os.AsyncTask$2。