这是我下载文件的简单代码:
InputStream input = null;
OutputStream output = null;
try {
URL fileURL = new URL(f.getVideoURL());
URLConnection con = fileURL.openConnection();
lengthOfContent = con.getContentLength();
con.setConnectTimeout(10 * 1000);
con.connect();
input = new BufferedInputStream(fileURL.openStream());
File f = new File("/sdcard/",fileName);
if(!f.exists()){
f.createNewFile();
}else{
f.delete();
f.createNewFile();
}
output = new FileOutputStream(f);
Log.v("FILE", fileName);
byte[] data = new byte[2 * 1024];
long tempBytesWritten = 0;
while((tempBytesWritten=input.read(data))!=-1){
bytesWritten.addAndGet(tempBytesWritten);
output.write(data,0,(int)tempBytesWritten);
synchronized(h){
h.post(new Runnable(){
@Override
public void run() {
adapter.notifyDataSetChanged();
}
});
}
output.flush();
output.close();
input.close();
}
尽管我使用
con.connect()
连接,但它说BufferedInputStream没有打开。我如何确保它是打开的?
08-06 19:45:12.070: W/System.err(9244): java.io.IOException: BufferedInputStream is closed
08-06 19:45:12.070: W/System.err(9244): at java.io.BufferedInputStream.streamClosed(BufferedInputStream.java:118)
08-06 19:45:12.075: W/System.err(9244): at java.io.BufferedInputStream.read(BufferedInputStream.java:271)
08-06 19:45:12.075: W/System.err(9244): at java.io.InputStream.read(InputStream.java:163)
08-06 19:45:12.075: W/System.err(9244): at com.example.tqafragments.Task.run(Task.java:67)
08-06 19:45:12.080: W/System.err(9244): at java.lang.Thread.run(Thread.java:856)
最佳答案
什么是互联的?
您是否尝试过以这种方式打开流?
//remove con.connect();
input = new BufferedInputStream(con.getInputStream());
关于android - IOException下载文件时,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/18082371/