我需要将文件从SD卡上传到服务器（使用FTP ），但在尝试保存文件时遇到了一些问题。该文件似乎首先存在，但是当我选择播放它时......好吧，它不会（就像它在上传过程中崩溃一样无效）。关于可能出错的任何想法？我设置了扩展名.mp3，这里是代码：
holder.upload.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String str_useid = Recording.str_getValue;
if (upload_or_not == true) {
FTPClient con = new FTPClient();
try {
con.connect("FTP URL");
if (con.login("USERNAME", "PASSWORD")) {
Handler progressHandler = new Handler();
con.setFileType(org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE);
BufferedInputStream buffIn = new BufferedInputStream(
new FileInputStream(
"/sdcard/audiometer/shanesh" +
RequestId[position] + "-"
str_useid + ".mp3"
)
);
con.enterLocalPassiveMode(); // important!
ProgressInputStream progressInput = new ProgressInputStream(
buffIn,
progressHandler
);
boolean status = con.storeFile(
"/Rangam/shanesh" +
RequestId[position] + "-" +
str_useid +
".mp3",
progressInput
);
String filename = "/shanesh" + RequestId[position] +
"-" + str_useid + ".mp3";
buffIn.close();
con.logout();
con.disconnect();
String MachineName = "DOT-NET-SERVER";
sendFlagToServer(RequestId[position], filename, MachineName);
Toast.makeText(
context,
" :: sucessfully upload :: " + status,
Toast.LENGTH_LONG
).show();
Toast.makeText(
context,
" :: RequestId is :: " +
RequestId[position],
Toast.LENGTH_LONG
).show();
}
} catch (Exception e) {
e.printStackTrace();
}
} else {
Toast.makeText(
context,
" :: File not Found :: ",
Toast.LENGTH_LONG
).show();
}
}
ProgressInputStream.java
package com.RecordingApp;
import java.io.IOException;
import java.io.InputStream;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
public class ProgressInputStream extends InputStream {
/* Key to retrieve progress value from message bundle passed to handler */
public static final String PROGRESS_UPDATE = "progress_update";
private static final int TEN_KILOBYTES = 1024 * 10;
private InputStream inputStream;
private Handler handler;
private long progress;
private long lastUpdate;
private boolean closed;
public ProgressInputStream(InputStream inputStream, Handler handler) {
this.inputStream = inputStream;
this.handler = handler;
this.progress = 0;
this.lastUpdate = 0;
this.closed = false;
}
@Override
public int read() throws IOException {
int count = inputStream.read();
return incrementCounterAndUpdateDisplay(count);
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
int count = inputStream.read(b, off, len);
return incrementCounterAndUpdateDisplay(count);
}
@Override
public void close() throws IOException {
super.close();
if (closed)
throw new IOException("already closed");
closed = true;
}
private int incrementCounterAndUpdateDisplay(int count) {
if (count > 0)
progress += count;
lastUpdate = maybeUpdateDisplay(progress, lastUpdate);
return count;
}
private long maybeUpdateDisplay(long progress, long lastUpdate) {
if (progress - lastUpdate > TEN_KILOBYTES) {
lastUpdate = progress;
sendLong(PROGRESS_UPDATE, progress);
}
return lastUpdate;
}
public void sendLong(String key, long value) {
Bundle data = new Bundle();
data.putLong(key, value);
Message message = Message.obtain();
message.setData(data);
handler.sendMessage(message);
}
}