本文介绍了在Android文件传输的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
这是关于Android的即时通讯软件。我尝试发送一个文件，这是我如何把它：
this is regarding android instant messenger. im trying to send a file, and this is how i send it :
@Override
public boolean sendFile(String path,String ip, int port) {
// TODO Auto-generated method stub
try {
String[] str = ip.split("\\.");
byte[] IP = new byte[str.length];
for (int i = 0; i < str.length; i++) {
IP[i] = (byte) Integer.parseInt(str[i]);
}
Socket socket = getSocket(InetAddress.getByAddress(IP), port);
if (socket == null) {
Log.i("SO sendFILE","null");
return false;
}
Log.i("SocketOP", "sendFILE-1");
File f = new File(path);
BufferedOutputStream out = new BufferedOutputStream( socket.getOutputStream() );
FileInputStream fileIn = new FileInputStream(f);
Log.i("SocketOP", "sendFILE-2");
byte [] buffer = new byte [1024];
int bytesRead =0;
while ((bytesRead = fileIn.read(buffer)) > 0) {
out.write(buffer, 0, bytesRead);
System.out.println("SO sendFile" + bytesRead);
}
out.flush();
out.close();
fileIn.close();
Log.i("SocketOP", "sendFILE-3");
} catch (IOException e) {
return false;
//e.printStackTrace();
}
// Toast.makeText(this, "Lvbvhhging...", Toast.LENGTH_SHORT).show();
return true;
}
这是我收到的文件连接和独立文本（我串连文到输出流文本）
this is how i receive connection and seperate text from file (i concatenate "text" to the output stream for the text)
public ReceiveConnection(Socket socket)
{
this.clientSocket = socket;
this.fileSocket=socket;
SocketOperator.this.sockets.put(socket.getInetAddress(), socket);
}
@Override
public void run() {
try {
// PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
// PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
BufferedReader in = new BufferedReader(
new InputStreamReader(
clientSocket.getInputStream()));
InputStream is=clientSocket.getInputStream();
String inputLine;
while ((inputLine = in.readLine()) != null) {
if (inputLine.contains("Text") == true)
{
appManager.messageReceived(inputLine);
Log.i("SocketOP","text");}
else if
(inputLine.contains("Text") == false)
{
Log.i("SocketOP","filee");
appManager.fileReceived(is);
}
else{
clientSocket.shutdownInput();
clientSocket.shutdownOutput();
clientSocket.close();
fileSocket.shutdownInput();
fileSocket.shutdownOutput();
fileSocket.close();
SocketOperator.this.sockets.remove(clientSocket.getInetAddress());
SocketOperator.this.sockets.remove(fileSocket.getInetAddress());
Log.i("SocketOP", "CLOSING CONNECTION");
}
}
} catch (IOException e) {
Log.e("ReceiveConnection.run: when receiving connection ","");
}
}
}
这是怎么我终于收到文件名为imService服务：
and this is how i finally receive the file in a service called imService :
public void fileReceived(InputStream is)
throws FileNotFoundException, IOException {
Log.i("IMSERVICE", "FILERECCC-1");
if (is!= null) {
FileOutputStream fos = null;
BufferedOutputStream bos = null;
try {
fos = new FileOutputStream("/sdcard/chats/ffffff.txt");
bos = new BufferedOutputStream(fos);
byte[] aByte = new byte[1024];
int bytesRead = 0;
System.out.println("imService fileReceive" + bytesRead);
while ((bytesRead = is.read(aByte)) != -1) {
bos.write(aByte, 0, bytesRead);
System.out.println("imService fileReceive" + bytesRead);
}
bos.flush();
bos.close();
Log.i("IMSERVICE", "FILERECCC-2");
} catch (IOException ex) {
// Do exception handling
}
}
身在何方我收到的文件连接和转发的InputStream是把文件接收方法，我看到它的获得字节，但一旦filereceived被称为它不是receving任何字节。
right where i receive the file connection and forward the inputstream IS to the file receive method, i see that its getting the bytes but once filereceived is called it isnt receving any bytes.
它使用TCP / IP。
it uses tcp/ip.
推荐答案
好吧，试试你的方法。
public void fileReceived(InputStream is)
throws FileNotFoundException, IOException
{
string result;
FileOutputStream fos = null;
fos = new FileOutputStream("/sdcard/chats/ffffff.txt");
Log.i("IMSERVICE", "FILERECCC-1");
if (is!= null)
{
// result = convertStreamToString(is);
// result = result.replace("\n", "");
// Log.e("InputStream output",result);
//IOUtils.copy(is,fos);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0)
{
fos.write(buffer, 0, length);
}
// Close the streams
fos.flush();
fos.close();
is.close();
}
}
/* public static String convertStreamToString(InputStream is)
throws Exception
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
return sb.toString();
}
*/
编辑：让其他的东西在fileReceived方法评论..只是贴上我建议的code
make other stuff in fileReceived method as comment.. just paste my suggested code.
编辑：来自Apache的一个IOUtils使用它。
its a IOUtils from apache use it..
这篇关于在Android文件传输的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！