Php 在写入期间取消HTTP Post文件上载到服务器-Android
我一直在发疯想弄明白这一点。我已经研究了一些可能的解决方案，包括，下面的5（，，）和更多，但似乎没有一个能很好地解决这个问题 我目前能做的事情：Php 在写入期间取消HTTP Post文件上载到服务器-Android,php,android,file-upload,dialog,http-post,Php,Android,File Upload,Dialog,Http Post,我一直在发疯想弄明白这一点。我已经研究了一些可能的解决方案，包括，下面的5（，，）和更多，但似乎没有一个能很好地解决这个问题 我目前能做的事情： package com.example.<package_name>; import java.io.File; import java.io.FilenameFilter; import java.util.ArrayList; import java.util.List; import android.app.Activity; i
package com.example.<package_name>;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import com.example.<package_name>.ListenerList.FireHandler;
import com.example.<package_name>.utils.UploadToServer;
public class FileDialog extends Activity {
public static boolean cancelled;
private static final String PARENT_DIR = "..";
private final String TAG = getClass().getName();
private String[] fileList;
private File currentPath;
public interface FileSelectedListener {
void fileSelected(File file);
}
public interface DirectorySelectedListener {
void directorySelected(File directory);
}
private ListenerList<FileSelectedListener> fileListenerList = new ListenerList<FileDialog.FileSelectedListener>();
private ListenerList<DirectorySelectedListener> dirListenerList = new ListenerList<FileDialog.DirectorySelectedListener>();
private final Activity activity;
private boolean selectDirectoryOption;
private String fileEndsWith;
/**
* @param activity
* @param initialPath
*/
public FileDialog(Activity activity, File path) {
this.activity = activity;
if (!path.exists())
path = Environment.getExternalStorageDirectory();
loadFileList(path);
}
/**
* @return file dialog
*/
public Dialog createFileDialog() {
Dialog dialog = null;
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Select a file to upload. Current path = "
+ currentPath.getPath());
if (selectDirectoryOption) {
builder.setPositiveButton("Select directory",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d(TAG, currentPath.getPath());
fireDirectorySelectedEvent(currentPath);
}
});
}
builder.setItems(fileList, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String fileChosen = fileList[which];
File chosenFile = getChosenFile(fileChosen);
cancelled = true;
if (chosenFile.isDirectory()) {
loadFileList(chosenFile);
dialog.cancel();
dialog.dismiss();
showDialog();
} else {
Intent intent = new Intent(activity, UploadToServer.class);
Bundle fileInfo = new Bundle();
fileInfo.putString(
UploadToServer.UPLOAD_FILE_DIRECTORY_KEY,
currentPath.getPath());
fileInfo.putString(UploadToServer.UPLOAD_FILE_NAME_KEY,
chosenFile.getName());
intent.putExtras(fileInfo); // Pass the file info to the
// UploadToServer activity
activity.startActivity(intent);
fireFileSelectedEvent(chosenFile);
}
}
});
dialog = builder.show();
return dialog;
}
public void addFileListener(FileSelectedListener listener) {
fileListenerList.add(listener);
}
public void removeFileListener(FileSelectedListener listener) {
fileListenerList.remove(listener);
}
public void setSelectDirectoryOption(boolean selectDirectoryOption) {
this.selectDirectoryOption = selectDirectoryOption;
}
public void addDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.add(listener);
}
public void removeDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.remove(listener);
}
/**
* Show file dialog
*/
public void showDialog() {
createFileDialog().show();
}
private void fireFileSelectedEvent(final File file) {
fileListenerList
.fireEvent(new FireHandler<FileDialog.FileSelectedListener>() {
@Override
public void fireEvent(FileSelectedListener listener) {
listener.fileSelected(file);
}
});
}
private void fireDirectorySelectedEvent(final File directory) {
dirListenerList
.fireEvent(new FireHandler<FileDialog.DirectorySelectedListener>() {
@Override
public void fireEvent(DirectorySelectedListener listener) {
listener.directorySelected(directory);
}
});
}
private void loadFileList(File path) {
this.currentPath = path;
List<String> r = new ArrayList<String>();
if (path.exists()) {
if (path.getParentFile() != null)
r.add(PARENT_DIR);
FilenameFilter filter = new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
File sel = new File(dir, filename);
if (!sel.canRead())
return false;
if (selectDirectoryOption)
return sel.isDirectory();
else {
boolean endsWith = fileEndsWith != null ? filename
.toLowerCase().endsWith(fileEndsWith) : true;
return endsWith || sel.isDirectory();
}
}
};
String[] fileList1 = path.list(filter);
for (String file : fileList1) {
r.add(file);
}
}
fileList = (String[]) r.toArray(new String[] {});
}
private File getChosenFile(String fileChosen) {
if (fileChosen.equals(PARENT_DIR))
return currentPath.getParentFile();
else
return new File(currentPath, fileChosen);
}
public void setFileEndsWith(String fileEndsWith) {
this.fileEndsWith = fileEndsWith != null ? fileEndsWith.toLowerCase()
: fileEndsWith;
}
}
class ListenerList<L> {
private List<L> listenerList = new ArrayList<L>();
public interface FireHandler<L> {
void fireEvent(L listener);
}
public void add(L listener) {
listenerList.add(listener);
}
public void fireEvent(FireHandler<L> fireHandler) {
List<L> copy = new ArrayList<L>(listenerList);
for (L l : copy) {
fireHandler.fireEvent(l);
}
}
public void remove(L listener) {
listenerList.remove(listener);
}
public List<L> getListenerList() {
return listenerList;
}
}
package com.example.<package_name>.utils;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.example.<package_name>.FileDialog;
import com.example.<package_name>.R;
public class UploadToServer extends Activity {
/**
* The key for the upload file path value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_DIRECTORY_KEY = "UploadToServer.uploadFileDirectory";
/**
* The key for the upload file name value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_NAME_KEY = "UploadToServer.uploadFileName";
TextView messageText;
Button uploadButton;
int serverResponseCode = 0;
ProgressDialog dialog = null;
String upLoadServerUri = null;
private String uploadFileDirectory;
private String uploadFileName;
private FileUploadRunnable fileUploadRunnable;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload_to_server);
Bundle fileInfo = getIntent().getExtras();
uploadFileDirectory = fileInfo.getString(UPLOAD_FILE_DIRECTORY_KEY);
uploadFileName = fileInfo.getString(UPLOAD_FILE_NAME_KEY);
messageText = (TextView) findViewById(R.id.messageText);
messageText.setText("Uploading file path :- " + uploadFileDirectory
+ "/" + uploadFileName);
/************* Php script path ****************/
upLoadServerUri = "http://<server_ip>/UploadToServer.php";
DialogInterface.OnCancelListener onCancelListener = new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
finish();
}
};
dialog = ProgressDialog.show(UploadToServer.this, "",
"Uploading file...", true, true, onCancelListener);
messageText.setText("uploading started.....");
fileUploadRunnable = new FileUploadRunnable(uploadFileDirectory,
uploadFileName);
new Thread(fileUploadRunnable).start();
}
@Override
public void onBackPressed() {
if (fileUploadRunnable != null) {
fileUploadRunnable.cancelUpload();
}
super.onBackPressed();
}
private class FileUploadRunnable implements Runnable {
private final String uploadFileDirectory;
private final String uploadFileName;
private HttpURLConnection conn;
private final Object dosLock;
private boolean doUpload;
DataOutputStream dos;
public FileUploadRunnable(String uploadFileDirectory,
String uploadFileName) {
this.uploadFileDirectory = uploadFileDirectory;
this.uploadFileName = uploadFileName;
conn = null;
Lock = new Object();
doUpload = true;
dos = null;
}
@Override
public void run() {
uploadFile(uploadFileDirectory + "/" + uploadFileName);
}
/**
* cancel the current upload
*/
public void cancelUpload() {
synchronized (dosLock) {
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
doUpload = false;
}
}
private void uploadFile(String sourceFileUri) {
String fileName = sourceFileUri;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :"
+ uploadFileDirectory + uploadFileName);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :"
+ uploadFileDirectory + uploadFileName);
}
});
return;
} else {
try {
// open a URL connection to the Servlet
URL url = new URL(upLoadServerUri);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
synchronized (dosLock) {
if (!doUpload) {
return;
}
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
} // end synchronization block
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
synchronized (dosLock) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math
.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0,
bufferSize);
}
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+ " http://www.androidexample.com/media/uploads/"
+ uploadFileName;
messageText.setText(msg);
Toast.makeText(UploadToServer.this,
"File Upload Complete.",
Toast.LENGTH_SHORT).show();
}
});
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText
.setText("MalformedURLException Exception : check script url.");
Toast.makeText(UploadToServer.this,
"MalformedURLException", Toast.LENGTH_SHORT)
.show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(),
ex);
} catch (IOException e) {
// TODO if doUpload is false here, then this is expected, so pop-up a toast.
// TODO if doUpload is true here, then this is NOT expected, so open an error dialog.
} catch (Exception e) {
// TODO this is for unexpected exceptions, so open an error dialog.
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : see logcat ");
Toast.makeText(UploadToServer.this,
"Got Exception : see logcat ",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception",
"Exception : " + e.getMessage(), e);
}
dialog.dismiss();
} // End else block
}
}
}
package com.example.<package_name>;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import com.example.<package_name>.ListenerList.FireHandler;
import com.example.<package_name>.utils.UploadToServer;
public class FileDialog extends Activity {
public static boolean cancelled;
private static final String PARENT_DIR = "..";
private final String TAG = getClass().getName();
private String[] fileList;
private File currentPath;
public interface FileSelectedListener {
void fileSelected(File file);
}
public interface DirectorySelectedListener {
void directorySelected(File directory);
}
private ListenerList<FileSelectedListener> fileListenerList = new ListenerList<FileDialog.FileSelectedListener>();
private ListenerList<DirectorySelectedListener> dirListenerList = new ListenerList<FileDialog.DirectorySelectedListener>();
private final Activity activity;
private boolean selectDirectoryOption;
private String fileEndsWith;
/**
* @param activity
* @param initialPath
*/
public FileDialog(Activity activity, File path) {
this.activity = activity;
if (!path.exists())
path = Environment.getExternalStorageDirectory();
loadFileList(path);
}
/**
* @return file dialog
*/
public Dialog createFileDialog() {
Dialog dialog = null;
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Select a file to upload. Current path = "
+ currentPath.getPath());
if (selectDirectoryOption) {
builder.setPositiveButton("Select directory",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d(TAG, currentPath.getPath());
fireDirectorySelectedEvent(currentPath);
}
});
}
builder.setItems(fileList, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String fileChosen = fileList[which];
File chosenFile = getChosenFile(fileChosen);
cancelled = true;
if (chosenFile.isDirectory()) {
loadFileList(chosenFile);
dialog.cancel();
dialog.dismiss();
showDialog();
} else {
Intent intent = new Intent(activity, UploadToServer.class);
Bundle fileInfo = new Bundle();
fileInfo.putString(
UploadToServer.UPLOAD_FILE_DIRECTORY_KEY,
currentPath.getPath());
fileInfo.putString(UploadToServer.UPLOAD_FILE_NAME_KEY,
chosenFile.getName());
intent.putExtras(fileInfo); // Pass the file info to the
// UploadToServer activity
activity.startActivity(intent);
fireFileSelectedEvent(chosenFile);
}
}
});
dialog = builder.show();
return dialog;
}
public void addFileListener(FileSelectedListener listener) {
fileListenerList.add(listener);
}
public void removeFileListener(FileSelectedListener listener) {
fileListenerList.remove(listener);
}
public void setSelectDirectoryOption(boolean selectDirectoryOption) {
this.selectDirectoryOption = selectDirectoryOption;
}
public void addDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.add(listener);
}
public void removeDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.remove(listener);
}
/**
* Show file dialog
*/
public void showDialog() {
createFileDialog().show();
}
private void fireFileSelectedEvent(final File file) {
fileListenerList
.fireEvent(new FireHandler<FileDialog.FileSelectedListener>() {
@Override
public void fireEvent(FileSelectedListener listener) {
listener.fileSelected(file);
}
});
}
private void fireDirectorySelectedEvent(final File directory) {
dirListenerList
.fireEvent(new FireHandler<FileDialog.DirectorySelectedListener>() {
@Override
public void fireEvent(DirectorySelectedListener listener) {
listener.directorySelected(directory);
}
});
}
private void loadFileList(File path) {
this.currentPath = path;
List<String> r = new ArrayList<String>();
if (path.exists()) {
if (path.getParentFile() != null)
r.add(PARENT_DIR);
FilenameFilter filter = new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
File sel = new File(dir, filename);
if (!sel.canRead())
return false;
if (selectDirectoryOption)
return sel.isDirectory();
else {
boolean endsWith = fileEndsWith != null ? filename
.toLowerCase().endsWith(fileEndsWith) : true;
return endsWith || sel.isDirectory();
}
}
};
String[] fileList1 = path.list(filter);
for (String file : fileList1) {
r.add(file);
}
}
fileList = (String[]) r.toArray(new String[] {});
}
private File getChosenFile(String fileChosen) {
if (fileChosen.equals(PARENT_DIR))
return currentPath.getParentFile();
else
return new File(currentPath, fileChosen);
}
public void setFileEndsWith(String fileEndsWith) {
this.fileEndsWith = fileEndsWith != null ? fileEndsWith.toLowerCase()
: fileEndsWith;
}
}
class ListenerList<L> {
private List<L> listenerList = new ArrayList<L>();
public interface FireHandler<L> {
void fireEvent(L listener);
}
public void add(L listener) {
listenerList.add(listener);
}
public void fireEvent(FireHandler<L> fireHandler) {
List<L> copy = new ArrayList<L>(listenerList);
for (L l : copy) {
fireHandler.fireEvent(l);
}
}
public void remove(L listener) {
listenerList.remove(listener);
}
public List<L> getListenerList() {
return listenerList;
}
}
package com.example.<package_name>.utils;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.example.<package_name>.FileDialog;
import com.example.<package_name>.R;
public class UploadToServer extends Activity {
/**
* The key for the upload file path value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_DIRECTORY_KEY = "UploadToServer.uploadFileDirectory";
/**
* The key for the upload file name value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_NAME_KEY = "UploadToServer.uploadFileName";
TextView messageText;
Button uploadButton;
int serverResponseCode = 0;
ProgressDialog dialog = null;
String upLoadServerUri = null;
private String uploadFileDirectory;
private String uploadFileName;
private FileUploadRunnable fileUploadRunnable;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload_to_server);
Bundle fileInfo = getIntent().getExtras();
uploadFileDirectory = fileInfo.getString(UPLOAD_FILE_DIRECTORY_KEY);
uploadFileName = fileInfo.getString(UPLOAD_FILE_NAME_KEY);
messageText = (TextView) findViewById(R.id.messageText);
messageText.setText("Uploading file path :- " + uploadFileDirectory
+ "/" + uploadFileName);
/************* Php script path ****************/
upLoadServerUri = "http://<server_ip>/UploadToServer.php";
DialogInterface.OnCancelListener onCancelListener = new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
finish();
}
};
dialog = ProgressDialog.show(UploadToServer.this, "",
"Uploading file...", true, true, onCancelListener);
messageText.setText("uploading started.....");
fileUploadRunnable = new FileUploadRunnable(uploadFileDirectory,
uploadFileName);
new Thread(fileUploadRunnable).start();
}
@Override
public void onBackPressed() {
if (fileUploadRunnable != null) {
fileUploadRunnable.cancelUpload();
}
super.onBackPressed();
}
private class FileUploadRunnable implements Runnable {
private final String uploadFileDirectory;
private final String uploadFileName;
private HttpURLConnection conn;
private final Object dosLock;
private boolean doUpload;
DataOutputStream dos;
public FileUploadRunnable(String uploadFileDirectory,
String uploadFileName) {
this.uploadFileDirectory = uploadFileDirectory;
this.uploadFileName = uploadFileName;
conn = null;
Lock = new Object();
doUpload = true;
dos = null;
}
@Override
public void run() {
uploadFile(uploadFileDirectory + "/" + uploadFileName);
}
/**
* cancel the current upload
*/
public void cancelUpload() {
synchronized (dosLock) {
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
doUpload = false;
}
}
private void uploadFile(String sourceFileUri) {
String fileName = sourceFileUri;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :"
+ uploadFileDirectory + uploadFileName);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :"
+ uploadFileDirectory + uploadFileName);
}
});
return;
} else {
try {
// open a URL connection to the Servlet
URL url = new URL(upLoadServerUri);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
synchronized (dosLock) {
if (!doUpload) {
return;
}
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
} // end synchronization block
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
synchronized (dosLock) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math
.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0,
bufferSize);
}
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+ " http://www.androidexample.com/media/uploads/"
+ uploadFileName;
messageText.setText(msg);
Toast.makeText(UploadToServer.this,
"File Upload Complete.",
Toast.LENGTH_SHORT).show();
}
});
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText
.setText("MalformedURLException Exception : check script url.");
Toast.makeText(UploadToServer.this,
"MalformedURLException", Toast.LENGTH_SHORT)
.show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(),
ex);
} catch (IOException e) {
// TODO if doUpload is false here, then this is expected, so pop-up a toast.
// TODO if doUpload is true here, then this is NOT expected, so open an error dialog.
} catch (Exception e) {
// TODO this is for unexpected exceptions, so open an error dialog.
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : see logcat ");
Toast.makeText(UploadToServer.this,
"Got Exception : see logcat ",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception",
"Exception : " + e.getMessage(), e);
}
dialog.dismiss();
} // End else block
}
}
}
package com.example.<package_name>;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import com.example.<package_name>.ListenerList.FireHandler;
import com.example.<package_name>.utils.UploadToServer;
public class FileDialog extends Activity {
public static boolean cancelled;
private static final String PARENT_DIR = "..";
private final String TAG = getClass().getName();
private String[] fileList;
private File currentPath;
public interface FileSelectedListener {
void fileSelected(File file);
}
public interface DirectorySelectedListener {
void directorySelected(File directory);
}
private ListenerList<FileSelectedListener> fileListenerList = new ListenerList<FileDialog.FileSelectedListener>();
private ListenerList<DirectorySelectedListener> dirListenerList = new ListenerList<FileDialog.DirectorySelectedListener>();
private final Activity activity;
private boolean selectDirectoryOption;
private String fileEndsWith;
/**
* @param activity
* @param initialPath
*/
public FileDialog(Activity activity, File path) {
this.activity = activity;
if (!path.exists())
path = Environment.getExternalStorageDirectory();
loadFileList(path);
}
/**
* @return file dialog
*/
public Dialog createFileDialog() {
Dialog dialog = null;
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Select a file to upload. Current path = "
+ currentPath.getPath());
if (selectDirectoryOption) {
builder.setPositiveButton("Select directory",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d(TAG, currentPath.getPath());
fireDirectorySelectedEvent(currentPath);
}
});
}
builder.setItems(fileList, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String fileChosen = fileList[which];
File chosenFile = getChosenFile(fileChosen);
cancelled = true;
if (chosenFile.isDirectory()) {
loadFileList(chosenFile);
dialog.cancel();
dialog.dismiss();
showDialog();
} else {
Intent intent = new Intent(activity, UploadToServer.class);
Bundle fileInfo = new Bundle();
fileInfo.putString(
UploadToServer.UPLOAD_FILE_DIRECTORY_KEY,
currentPath.getPath());
fileInfo.putString(UploadToServer.UPLOAD_FILE_NAME_KEY,
chosenFile.getName());
intent.putExtras(fileInfo); // Pass the file info to the
// UploadToServer activity
activity.startActivity(intent);
fireFileSelectedEvent(chosenFile);
}
}
});
dialog = builder.show();
return dialog;
}
public void addFileListener(FileSelectedListener listener) {
fileListenerList.add(listener);
}
public void removeFileListener(FileSelectedListener listener) {
fileListenerList.remove(listener);
}
public void setSelectDirectoryOption(boolean selectDirectoryOption) {
this.selectDirectoryOption = selectDirectoryOption;
}
public void addDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.add(listener);
}
public void removeDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.remove(listener);
}
/**
* Show file dialog
*/
public void showDialog() {
createFileDialog().show();
}
private void fireFileSelectedEvent(final File file) {
fileListenerList
.fireEvent(new FireHandler<FileDialog.FileSelectedListener>() {
@Override
public void fireEvent(FileSelectedListener listener) {
listener.fileSelected(file);
}
});
}
private void fireDirectorySelectedEvent(final File directory) {
dirListenerList
.fireEvent(new FireHandler<FileDialog.DirectorySelectedListener>() {
@Override
public void fireEvent(DirectorySelectedListener listener) {
listener.directorySelected(directory);
}
});
}
private void loadFileList(File path) {
this.currentPath = path;
List<String> r = new ArrayList<String>();
if (path.exists()) {
if (path.getParentFile() != null)
r.add(PARENT_DIR);
FilenameFilter filter = new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
File sel = new File(dir, filename);
if (!sel.canRead())
return false;
if (selectDirectoryOption)
return sel.isDirectory();
else {
boolean endsWith = fileEndsWith != null ? filename
.toLowerCase().endsWith(fileEndsWith) : true;
return endsWith || sel.isDirectory();
}
}
};
String[] fileList1 = path.list(filter);
for (String file : fileList1) {
r.add(file);
}
}
fileList = (String[]) r.toArray(new String[] {});
}
private File getChosenFile(String fileChosen) {
if (fileChosen.equals(PARENT_DIR))
return currentPath.getParentFile();
else
return new File(currentPath, fileChosen);
}
public void setFileEndsWith(String fileEndsWith) {
this.fileEndsWith = fileEndsWith != null ? fileEndsWith.toLowerCase()
: fileEndsWith;
}
}
class ListenerList<L> {
private List<L> listenerList = new ArrayList<L>();
public interface FireHandler<L> {
void fireEvent(L listener);
}
public void add(L listener) {
listenerList.add(listener);
}
public void fireEvent(FireHandler<L> fireHandler) {
List<L> copy = new ArrayList<L>(listenerList);
for (L l : copy) {
fireHandler.fireEvent(l);
}
}
public void remove(L listener) {
listenerList.remove(listener);
}
public List<L> getListenerList() {
return listenerList;
}
}
package com.example.<package_name>.utils;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.example.<package_name>.FileDialog;
import com.example.<package_name>.R;
public class UploadToServer extends Activity {
/**
* The key for the upload file path value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_DIRECTORY_KEY = "UploadToServer.uploadFileDirectory";
/**
* The key for the upload file name value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_NAME_KEY = "UploadToServer.uploadFileName";
TextView messageText;
Button uploadButton;
int serverResponseCode = 0;
ProgressDialog dialog = null;
String upLoadServerUri = null;
private String uploadFileDirectory;
private String uploadFileName;
private FileUploadRunnable fileUploadRunnable;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload_to_server);
Bundle fileInfo = getIntent().getExtras();
uploadFileDirectory = fileInfo.getString(UPLOAD_FILE_DIRECTORY_KEY);
uploadFileName = fileInfo.getString(UPLOAD_FILE_NAME_KEY);
messageText = (TextView) findViewById(R.id.messageText);
messageText.setText("Uploading file path :- " + uploadFileDirectory
+ "/" + uploadFileName);
/************* Php script path ****************/
upLoadServerUri = "http://<server_ip>/UploadToServer.php";
DialogInterface.OnCancelListener onCancelListener = new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
finish();
}
};
dialog = ProgressDialog.show(UploadToServer.this, "",
"Uploading file...", true, true, onCancelListener);
messageText.setText("uploading started.....");
fileUploadRunnable = new FileUploadRunnable(uploadFileDirectory,
uploadFileName);
new Thread(fileUploadRunnable).start();
}
@Override
public void onBackPressed() {
if (fileUploadRunnable != null) {
fileUploadRunnable.cancelUpload();
}
super.onBackPressed();
}
private class FileUploadRunnable implements Runnable {
private final String uploadFileDirectory;
private final String uploadFileName;
private HttpURLConnection conn;
private final Object dosLock;
private boolean doUpload;
DataOutputStream dos;
public FileUploadRunnable(String uploadFileDirectory,
String uploadFileName) {
this.uploadFileDirectory = uploadFileDirectory;
this.uploadFileName = uploadFileName;
conn = null;
Lock = new Object();
doUpload = true;
dos = null;
}
@Override
public void run() {
uploadFile(uploadFileDirectory + "/" + uploadFileName);
}
/**
* cancel the current upload
*/
public void cancelUpload() {
synchronized (dosLock) {
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
doUpload = false;
}
}
private void uploadFile(String sourceFileUri) {
String fileName = sourceFileUri;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :"
+ uploadFileDirectory + uploadFileName);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :"
+ uploadFileDirectory + uploadFileName);
}
});
return;
} else {
try {
// open a URL connection to the Servlet
URL url = new URL(upLoadServerUri);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
synchronized (dosLock) {
if (!doUpload) {
return;
}
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
} // end synchronization block
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
synchronized (dosLock) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math
.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0,
bufferSize);
}
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+ " http://www.androidexample.com/media/uploads/"
+ uploadFileName;
messageText.setText(msg);
Toast.makeText(UploadToServer.this,
"File Upload Complete.",
Toast.LENGTH_SHORT).show();
}
});
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText
.setText("MalformedURLException Exception : check script url.");
Toast.makeText(UploadToServer.this,
"MalformedURLException", Toast.LENGTH_SHORT)
.show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(),
ex);
} catch (IOException e) {
// TODO if doUpload is false here, then this is expected, so pop-up a toast.
// TODO if doUpload is true here, then this is NOT expected, so open an error dialog.
} catch (Exception e) {
// TODO this is for unexpected exceptions, so open an error dialog.
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : see logcat ");
Toast.makeText(UploadToServer.this,
"Got Exception : see logcat ",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception",
"Exception : " + e.getMessage(), e);
}
dialog.dismiss();
} // End else block
}
}
}
DialogInterface.OnCancelListener onCancelListener = new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
finish();
}
};
dialog = ProgressDialog.show(UploadToServer.this, "", "Uploading file...", true, true, onCancelListener);
package com.example.<package_name>;
import java.io.File;
import java.io.FilenameFilter;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import com.example.<package_name>.ListenerList.FireHandler;
import com.example.<package_name>.utils.UploadToServer;
public class FileDialog extends Activity {
public static boolean cancelled;
private static final String PARENT_DIR = "..";
private final String TAG = getClass().getName();
private String[] fileList;
private File currentPath;
public interface FileSelectedListener {
void fileSelected(File file);
}
public interface DirectorySelectedListener {
void directorySelected(File directory);
}
private ListenerList<FileSelectedListener> fileListenerList = new ListenerList<FileDialog.FileSelectedListener>();
private ListenerList<DirectorySelectedListener> dirListenerList = new ListenerList<FileDialog.DirectorySelectedListener>();
private final Activity activity;
private boolean selectDirectoryOption;
private String fileEndsWith;
/**
* @param activity
* @param initialPath
*/
public FileDialog(Activity activity, File path) {
this.activity = activity;
if (!path.exists())
path = Environment.getExternalStorageDirectory();
loadFileList(path);
}
/**
* @return file dialog
*/
public Dialog createFileDialog() {
Dialog dialog = null;
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setTitle("Select a file to upload. Current path = "
+ currentPath.getPath());
if (selectDirectoryOption) {
builder.setPositiveButton("Select directory",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d(TAG, currentPath.getPath());
fireDirectorySelectedEvent(currentPath);
}
});
}
builder.setItems(fileList, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String fileChosen = fileList[which];
File chosenFile = getChosenFile(fileChosen);
cancelled = true;
if (chosenFile.isDirectory()) {
loadFileList(chosenFile);
dialog.cancel();
dialog.dismiss();
showDialog();
} else {
Intent intent = new Intent(activity, UploadToServer.class);
Bundle fileInfo = new Bundle();
fileInfo.putString(
UploadToServer.UPLOAD_FILE_DIRECTORY_KEY,
currentPath.getPath());
fileInfo.putString(UploadToServer.UPLOAD_FILE_NAME_KEY,
chosenFile.getName());
intent.putExtras(fileInfo); // Pass the file info to the
// UploadToServer activity
activity.startActivity(intent);
fireFileSelectedEvent(chosenFile);
}
}
});
dialog = builder.show();
return dialog;
}
public void addFileListener(FileSelectedListener listener) {
fileListenerList.add(listener);
}
public void removeFileListener(FileSelectedListener listener) {
fileListenerList.remove(listener);
}
public void setSelectDirectoryOption(boolean selectDirectoryOption) {
this.selectDirectoryOption = selectDirectoryOption;
}
public void addDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.add(listener);
}
public void removeDirectoryListener(DirectorySelectedListener listener) {
dirListenerList.remove(listener);
}
/**
* Show file dialog
*/
public void showDialog() {
createFileDialog().show();
}
private void fireFileSelectedEvent(final File file) {
fileListenerList
.fireEvent(new FireHandler<FileDialog.FileSelectedListener>() {
@Override
public void fireEvent(FileSelectedListener listener) {
listener.fileSelected(file);
}
});
}
private void fireDirectorySelectedEvent(final File directory) {
dirListenerList
.fireEvent(new FireHandler<FileDialog.DirectorySelectedListener>() {
@Override
public void fireEvent(DirectorySelectedListener listener) {
listener.directorySelected(directory);
}
});
}
private void loadFileList(File path) {
this.currentPath = path;
List<String> r = new ArrayList<String>();
if (path.exists()) {
if (path.getParentFile() != null)
r.add(PARENT_DIR);
FilenameFilter filter = new FilenameFilter() {
@Override
public boolean accept(File dir, String filename) {
File sel = new File(dir, filename);
if (!sel.canRead())
return false;
if (selectDirectoryOption)
return sel.isDirectory();
else {
boolean endsWith = fileEndsWith != null ? filename
.toLowerCase().endsWith(fileEndsWith) : true;
return endsWith || sel.isDirectory();
}
}
};
String[] fileList1 = path.list(filter);
for (String file : fileList1) {
r.add(file);
}
}
fileList = (String[]) r.toArray(new String[] {});
}
private File getChosenFile(String fileChosen) {
if (fileChosen.equals(PARENT_DIR))
return currentPath.getParentFile();
else
return new File(currentPath, fileChosen);
}
public void setFileEndsWith(String fileEndsWith) {
this.fileEndsWith = fileEndsWith != null ? fileEndsWith.toLowerCase()
: fileEndsWith;
}
}
class ListenerList<L> {
private List<L> listenerList = new ArrayList<L>();
public interface FireHandler<L> {
void fireEvent(L listener);
}
public void add(L listener) {
listenerList.add(listener);
}
public void fireEvent(FireHandler<L> fireHandler) {
List<L> copy = new ArrayList<L>(listenerList);
for (L l : copy) {
fireHandler.fireEvent(l);
}
}
public void remove(L listener) {
listenerList.remove(listener);
}
public List<L> getListenerList() {
return listenerList;
}
}
package com.example.<package_name>.utils;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.example.<package_name>.FileDialog;
import com.example.<package_name>.R;
public class UploadToServer extends Activity {
/**
* The key for the upload file path value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_DIRECTORY_KEY = "UploadToServer.uploadFileDirectory";
/**
* The key for the upload file name value passed through the start-up
* intent.
*/
public static final String UPLOAD_FILE_NAME_KEY = "UploadToServer.uploadFileName";
TextView messageText;
Button uploadButton;
int serverResponseCode = 0;
ProgressDialog dialog = null;
String upLoadServerUri = null;
private String uploadFileDirectory;
private String uploadFileName;
private FileUploadRunnable fileUploadRunnable;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload_to_server);
Bundle fileInfo = getIntent().getExtras();
uploadFileDirectory = fileInfo.getString(UPLOAD_FILE_DIRECTORY_KEY);
uploadFileName = fileInfo.getString(UPLOAD_FILE_NAME_KEY);
messageText = (TextView) findViewById(R.id.messageText);
messageText.setText("Uploading file path :- " + uploadFileDirectory
+ "/" + uploadFileName);
/************* Php script path ****************/
upLoadServerUri = "http://<server_ip>/UploadToServer.php";
DialogInterface.OnCancelListener onCancelListener = new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
finish();
}
};
dialog = ProgressDialog.show(UploadToServer.this, "",
"Uploading file...", true, true, onCancelListener);
messageText.setText("uploading started.....");
fileUploadRunnable = new FileUploadRunnable(uploadFileDirectory,
uploadFileName);
new Thread(fileUploadRunnable).start();
}
@Override
public void onBackPressed() {
if (fileUploadRunnable != null) {
fileUploadRunnable.cancelUpload();
}
super.onBackPressed();
}
private class FileUploadRunnable implements Runnable {
private final String uploadFileDirectory;
private final String uploadFileName;
private HttpURLConnection conn;
private final Object dosLock;
private boolean doUpload;
DataOutputStream dos;
public FileUploadRunnable(String uploadFileDirectory,
String uploadFileName) {
this.uploadFileDirectory = uploadFileDirectory;
this.uploadFileName = uploadFileName;
conn = null;
Lock = new Object();
doUpload = true;
dos = null;
}
@Override
public void run() {
uploadFile(uploadFileDirectory + "/" + uploadFileName);
}
/**
* cancel the current upload
*/
public void cancelUpload() {
synchronized (dosLock) {
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
doUpload = false;
}
}
private void uploadFile(String sourceFileUri) {
String fileName = sourceFileUri;
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
File sourceFile = new File(sourceFileUri);
if (!sourceFile.isFile()) {
dialog.dismiss();
Log.e("uploadFile", "Source File not exist :"
+ uploadFileDirectory + uploadFileName);
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Source File not exist :"
+ uploadFileDirectory + uploadFileName);
}
});
return;
} else {
try {
// open a URL connection to the Servlet
URL url = new URL(upLoadServerUri);
// Open a HTTP connection to the URL
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true); // Allow Inputs
conn.setDoOutput(true); // Allow Outputs
conn.setUseCaches(false); // Don't use a Cached Copy
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("ENCTYPE", "multipart/form-data");
conn.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
conn.setRequestProperty("uploaded_file", fileName);
synchronized (dosLock) {
if (!doUpload) {
return;
}
dos = new DataOutputStream(conn.getOutputStream());
dos.writeBytes(twoHyphens + boundary + lineEnd);
dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\""
+ fileName + "\"" + lineEnd);
dos.writeBytes(lineEnd);
} // end synchronization block
FileInputStream fileInputStream = new FileInputStream(
sourceFile);
// create a buffer of maximum size
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// read file and write it into form...
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
synchronized (dosLock) {
dos.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math
.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0,
bufferSize);
}
}
// send multipart form data necesssary after file data...
dos.writeBytes(lineEnd);
dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
String serverResponseMessage = conn.getResponseMessage();
Log.i("uploadFile", "HTTP Response is : "
+ serverResponseMessage + ": " + serverResponseCode);
if (serverResponseCode == 200) {
runOnUiThread(new Runnable() {
public void run() {
String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
+ " http://www.androidexample.com/media/uploads/"
+ uploadFileName;
messageText.setText(msg);
Toast.makeText(UploadToServer.this,
"File Upload Complete.",
Toast.LENGTH_SHORT).show();
}
});
}
// close the streams //
fileInputStream.close();
dos.flush();
dos.close();
} catch (MalformedURLException ex) {
dialog.dismiss();
ex.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText
.setText("MalformedURLException Exception : check script url.");
Toast.makeText(UploadToServer.this,
"MalformedURLException", Toast.LENGTH_SHORT)
.show();
}
});
Log.e("Upload file to server", "error: " + ex.getMessage(),
ex);
} catch (IOException e) {
// TODO if doUpload is false here, then this is expected, so pop-up a toast.
// TODO if doUpload is true here, then this is NOT expected, so open an error dialog.
} catch (Exception e) {
// TODO this is for unexpected exceptions, so open an error dialog.
dialog.dismiss();
e.printStackTrace();
runOnUiThread(new Runnable() {
public void run() {
messageText.setText("Got Exception : see logcat ");
Toast.makeText(UploadToServer.this,
"Got Exception : see logcat ",
Toast.LENGTH_SHORT).show();
}
});
Log.e("Upload file to server Exception",
"Exception : " + e.getMessage(), e);
}
dialog.dismiss();
} // End else block
}
}
}
package.com.example。；
导入java.io.File；
导入java.io.FilenameFilter；
导入java.util.ArrayList；
导入java.util.List；
导入android.app.Activity；
导入android.app.AlertDialog；
导入android.app.Dialog；
导入android.content.DialogInterface；
导入android.content.Intent；
导入android.os.Bundle；
导入android.os.Environment；
导入android.util.Log；
导入com.example..ListenerList.FireHandler；
导入com.example..utils.UploadToServer；
公共类FileDialog扩展活动{
取消公共静态布尔值；
私有静态最终字符串PARENT_DIR=“…”；
私有最终字符串标记=getClass（）.getName（）；
私有字符串[]文件列表；
私有文件路径；
公共接口文件SelectedListener{
选择的无效文件（文件）；
}
公共接口目录SelectedListener{
已选择无效目录（文件目录）；
}
私有ListenerList fileListenerList=新建ListenerList（）；
私有ListenerList dirListenerList=新建ListenerList（）；
私人最终活动；
私有布尔selectDirectoryOption；
私有字符串fileEndsWith；
/**
*@param活动
*@param initialPath
*/
公共文件对话框（活动、文件路径）{
这个。活动=活动；
如果（！path.exists（））
path=Environment.getExternalStorageDirectory（）；
加载文件列表（路径）；
}
/**
*@返回文件对话框
*/
公共对话框createFileDialog（）{
Dialog=null；
AlertDialog.Builder=新建AlertDialog.Builder（活动）；
setTitle（“选择要上载的文件。当前路径=”
+currentPath.getPath（））；
如果（选择目录选项）{
setPositiveButton（“选择目录”，
新建DialogInterface.OnClickListener（）{
@凌驾
public void onClick（DialogInterface dialog，int which）{
Log.d（标记，currentPath.getPath（））；
fireDirectorySelectedEvent（当前路径）；
}
});
}
setItems（文件列表，新的DialogInterface.OnClickListener（）{
@凌驾
public void onClick（DialogInterface dialog，int which）{
字符串fileselected=fileList[which]；
File chosenFile=getChosenFile（fileselected）；
取消=真；
if（chosenFile.isDirectory（））{
加载文件列表（已选择）