我想让用户通过他的计算机上的网络浏览器(在本地网络中)从我的Android应用程序下载文件。 起初我在计算机上的eclipse中编写了这个功能的代码,它运行正常。但是,当我尝试在Android应用程序中运行它(该文件是从资产路径复制)时,我无法再下载该文件。 Firefox只是告诉我它无法下载,因为无法读取源文件。
这是我的应用程序中的代码。它没有任何错误。
public class test implements Runnable {
public boolean running = true;
ServerSocket servsock = null;
Context context;
String filename = "test.jar";
public test(Context con){
this.context=con;
}
public Integer createSocketandStart(){
for (int i=1234; i<2000; ++i){
try{
servsock = new ServerSocket(i);
servsock.setSoTimeout(1000000);
new Thread(this).start();
return i;
}catch(Exception e){
System.out.print("socket error");
}
}
return null;
}
public void run(){
File f= new File(context.getFilesDir(), filename);
try {
InputStream is = context.getAssets().open(filename);
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
FileOutputStream fos = new FileOutputStream(f);
fos.write(buffer);
fos.close();
} catch (Exception e) { throw new RuntimeException(e); }
while (running) {
try {
Socket connection = servsock.accept();
OutputStream out = new BufferedOutputStream(connection.getOutputStream());
PrintStream pout = new PrintStream(out);
InputStream file = new FileInputStream(f);
pout.print("HTTP/1.0 200 OK\r\n" +
"Content-Type: application/octet-stream\r\n" +
"Content-Disposition: attachment; filename=\"" + filename + "\"\r\n" +
"Date: " + new Date() + "\r\n" +
"Server: FileServer 1.0\r\n\r\n");
byte[] buffer = new byte[1000];
while (file.available() > 0) {
out.write(buffer, 0, file.read(buffer));
}
out.flush();
if (connection != null) connection.close();
file.close();
pout.close();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}