在2台android设备之间传输文件
我想在两台设备(服务器和客户端)之间传输文件。。我在客户方面有点小问题。 我在logcat中得到了这个错误:在2台android设备之间传输文件,android,file,upload,Android,File,Upload,我想在两台设备(服务器和客户端)之间传输文件。。我在客户方面有点小问题。 我在logcat中得到了这个错误: java.lang.ArrayIndexOutOfBoundsException:长度=1024;regionStart=0;区域长度=-1 如果我的密码错了,请告诉我。我想做一个应用程序和它的4天我的工作转移。这让我很难受。请帮忙 这是客户: package com.example.test; import java.io.BufferedOutputStream; import
java.lang.ArrayIndexOutOfBoundsException:长度=1024;regionStart=0;区域长度=-1
如果我的密码错了,请告诉我。我想做一个应用程序和它的4天我的工作转移。这让我很难受。请帮忙
这是客户:
package com.example.test;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.os.Bundle;
import android.os.Environment;
public class MainActivity extends ActionBarActivity {
EditText editTextAddress;
Button buttonConnect;
TextView textPort;
static final int SocketServerPORT = 8000;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editTextAddress = (EditText) findViewById(R.id.address);
textPort = (TextView) findViewById(R.id.port);
textPort.setText("port: " + SocketServerPORT);
buttonConnect = (Button) findViewById(R.id.connect);
buttonConnect.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
ClientRxThread clientRxThread =
new ClientRxThread(
editTextAddress.getText().toString(),
SocketServerPORT);
clientRxThread.start();
}});
}
private class ClientRxThread extends Thread {
String dstAddress;
int dstPort;
ClientRxThread(String address, int port) {
dstAddress = address;
dstPort = port;
}
@Override
public void run() {
Socket socket = null;
try {
socket = new Socket(dstAddress, dstPort);
File file = new File(
Environment.getExternalStorageDirectory(),
"input.jpg");
byte[] bytes = new byte[1024];
InputStream is = socket.getInputStream();
FileOutputStream fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos);
int bytesRead = is.read(bytes, 0, bytes.length);
bos.write(bytes, 0, bytesRead);
bos.close();
socket.close();
MainActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this,
"Finished",
Toast.LENGTH_LONG).show();
}});
} catch (IOException e) {
e.printStackTrace();
final String eMsg = "Something wrong: " + e.getMessage();
MainActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this,
eMsg,
Toast.LENGTH_LONG).show();
}});
} finally {
if(socket != null){
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
}
客户端xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.androidsocketfiletransferclient.MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="File Transfer Client"
android:textStyle="bold" />
<EditText
android:id="@+id/address"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="dstAddress" />
<TextView
android:id="@+id/port"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:id="@+id/connect"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Connect..." />
客户清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
服务器:
package com.example.testserverandroid;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.Enumeration;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.os.Environment;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
TextView infoIp, infoPort;
static final int SocketServerPORT = 8000;
ServerSocket serverSocket;
ServerSocketThread serverSocketThread;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
infoIp = (TextView) findViewById(R.id.infoip);
infoPort = (TextView) findViewById(R.id.infoport);
infoIp.setText(getIpAddress());
serverSocketThread = new ServerSocketThread();
serverSocketThread.start();
}
@Override
protected void onDestroy() {
super.onDestroy();
if (serverSocket != null) {
try {
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private String getIpAddress() {
String ip = "";
try {
Enumeration<NetworkInterface> enumNetworkInterfaces = NetworkInterface
.getNetworkInterfaces();
while (enumNetworkInterfaces.hasMoreElements()) {
NetworkInterface networkInterface = enumNetworkInterfaces
.nextElement();
Enumeration<InetAddress> enumInetAddress = networkInterface
.getInetAddresses();
while (enumInetAddress.hasMoreElements()) {
InetAddress inetAddress = enumInetAddress.nextElement();
if (inetAddress.isSiteLocalAddress()) {
ip += "SiteLocalAddress: "
+ inetAddress.getHostAddress() + "\n";
}
}
}
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
ip += "Something Wrong! " + e.toString() + "\n";
}
return ip;
}
public class ServerSocketThread extends Thread {
@Override
public void run() {
Socket socket = null;
try {
serverSocket = new ServerSocket(SocketServerPORT);
MainActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
infoPort.setText("I'm waiting here: "
+ serverSocket.getLocalPort());
}
});
while (true) {
socket = serverSocket.accept();
FileTxThread fileTxThread = new FileTxThread(socket);
fileTxThread.start();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
public class FileTxThread extends Thread {
Socket socket;
FileTxThread(Socket socket) {
this.socket = socket;
}
@Override
public void run() {
File file = new File(Environment.getExternalStorageDirectory(),
"test.txt");
byte[] bytes = new byte[(int) file.length()];
BufferedInputStream bis;
try {
bis = new BufferedInputStream(new FileInputStream(file));
bis.read(bytes, 0, bytes.length);
OutputStream os = socket.getOutputStream();
os.write(bytes, 0, bytes.length);
os.flush();
socket.close();
final String sentMsg = "File sent to: "
+ socket.getInetAddress();
MainActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, sentMsg,
Toast.LENGTH_LONG).show();
}
});
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
package com.example.testserverandroid;
导入java.io.BufferedInputStream;
导入java.io.File;
导入java.io.FileInputStream;
导入java.io.FileNotFoundException;
导入java.io.IOException;
导入java.io.OutputStream;
导入java.net.InetAddress;
导入java.net.NetworkInterface;
导入java.net.ServerSocket;
导入java.net.Socket;
导入java.net.SocketException;
导入java.util.Enumeration;
导入android.support.v7.app.ActionBarActivity;
导入android.os.Bundle;
导入android.os.Environment;
导入android.widget.TextView;
导入android.widget.Toast;
公共类MainActivity扩展了ActionBarActivity{
TextView infoIp、infoPort;
静态最终int SocketServerPORT=8000;
服务器套接字服务器套接字;
ServerSocketThread ServerSocketThread;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
infoIp=(TextView)findViewById(R.id.infoIp);
infoPort=(TextView)findViewById(R.id.infoPort);
infoIp.setText(getIpAddress());
serverSocketThread=新的serverSocketThread();
serverSocketThread.start();
}
@凌驾
受保护的空onDestroy(){
super.ondestory();
if(serverSocket!=null){
试一试{
serverSocket.close();
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
}
}
私有字符串getIpAddress(){
字符串ip=“”;
试一试{
枚举enumNetworkInterfaces=网络接口
.getNetworkInterfaces();
while(enumNetworkInterfaces.hasMoreElements()){
NetworkInterface NetworkInterface=EnumNetworkInterface
.nextElement();
枚举enumInetAddress=网络接口
.getInetAddresses();
while(enumInetAddress.hasMoreElements()){
InetAddress InetAddress=enumInetAddress.nextElement();
if(inetAddress.isSiteLocalAddress()){
ip+=“站点本地地址:”
+inetAddress.getHostAddress()+“\n”;
}
}
}
}捕获(SocketException e){
//TODO自动生成的捕捉块
e、 printStackTrace();
ip++=“有问题!”+e.toString()+“\n”;
}
返回ip;
}
公共类ServerSocketThread扩展线程{
@凌驾
公开募捐{
套接字=空;
试一试{
serverSocket=新的serverSocket(SocketServerPORT);
MainActivity.this.runOnUiThread(新的Runnable(){
@凌驾
公开募捐{
infoPort.setText(“我在这里等待:”
+serverSocket.getLocalPort());
}
});
while(true){
socket=serverSocket.accept();
FileTxThread FileTxThread=newfiletxthread(套接字);
fileTxThread.start();
}
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}最后{
if(套接字!=null){
试一试{
socket.close();
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
}
}
}
}
公共类FileTxThread扩展线程{
插座;
FileTxThread(套接字){
this.socket=socket;
}
@凌驾
公开募捐{
File File=新文件(Environment.getExternalStorageDirectory(),
“test.txt”);
byte[]bytes=新字节[(int)file.length()];
缓冲数据流bis;
试一试{
bis=新的BufferedInputStream(新文件输入流(文件));
读取(字节,0,字节长度);
OutputStream os=socket.getOutputStream();
写入(字节,0,字节长度);
os.flush();
socket.close();
最后一个字符串sentMsg=“文件发送到:”
+socket.getInetAddress();
MainActivity.this.runOnUiThread(新的Runnable(){
@凌驾
公开募捐{
Toast.makeText(MainActivity.this,sentMsg,
Toast.LENGTH_LONG).show();
}
});
}catch(filenotfounde异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}最后{
试一试{
socket.close();
}捕获(IOE异常){
//TODO自动生成的捕捉块
e、 printStackTrace();
}
}
}
}
}
服务器清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.test.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
在您的客户端中,当您从输入流中读取数据时,如果您已经在输入流的末尾,则读取的字节数将为-1。这在中进行了描述 执行此语句时会发生
ArrayIndexOutOfBoundsException
异常,bytesRead
为-1
bos.write(bytes, 0, bytesRead);
你需要重组你的公司