用Socket实现PC和手机的文件传输

PC服务器端代码:

---

/*
*PC与Android客户端实现文件的传送
*PC服务器端
*/
packagecom.android.test;
importjava.io.BufferedInputStream;
importjava.io.DataInputStream;
importjava.io.DataOutputStream;
importjava.io.File;
importjava.io.FileInputStream;
importjava.io.IOException;
importjava.net.ServerSocket;
importjava.net.Socket;
publicclassTransferFileServer{
privatestaticfinalintHOST_PORT=8821;
privatevoidstart(){
Sockets=null;
try{
ServerSocketss=newServerSocket(HOST_PORT);
while(true){
StringfilePath="/home/fan/Pictures/1.jpg";
Filefile=newFile(filePath);
System.out.println("文件长度:"+(int)file.length());
s=ss.accept();
log("建立Socket连接");
DataInputStreamdis=newDataInputStream(
newBufferedInputStream(s.getInputStream()));
dis.readByte();
DataInputStreamfis=newDataInputStream(
newBufferedInputStream(newFileInputStream(filePath)));
DataOutputStreamdos=newDataOutputStream(s.getOutputStream());
dos.writeUTF(file.getName());
dos.flush();
dos.writeLong((long)file.length());
dos.flush();
intbufferSize=8192;
byte[]buf=newbyte[bufferSize];
while(true){
intread=0;
if(fis!=null){
read=fis.read(buf);
}
if(read==-1){
break;
}
dos.write(buf,0,read);
}
dos.flush();
//注意关闭socket链接哦，不然客户端会等待server的数据过来，
//直到socket超时，导致数据不完整。
fis.close();
s.close();
log("文件传输完成");
}
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
}
voidlog(Stringmsg){
System.out.println(msg);
}
publicstaticvoidmain(Stringargs[]){
newTransferFileServer().start();
}
}

/* * PC与Android客户端实现文件的传送 * PC服务器端 */ package com.android.test; import java.io.BufferedInputStream; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.net.ServerSocket; import java.net.Socket; public class TransferFileServer { private static final int HOST_PORT = 8821; private void start() { Socket s = null; try { ServerSocket ss = new ServerSocket(HOST_PORT); while (true) { String filePath = "/home/fan/Pictures/1.jpg"; File file = new File(filePath); System.out.println("文件长度:" + (int) file.length()); s = ss.accept(); log("建立Socket连接"); DataInputStream dis = new DataInputStream( new BufferedInputStream(s.getInputStream())); dis.readByte(); DataInputStream fis = new DataInputStream( new BufferedInputStream(new FileInputStream(filePath))); DataOutputStream dos = new DataOutputStream(s.getOutputStream()); dos.writeUTF(file.getName()); dos.flush(); dos.writeLong((long) file.length()); dos.flush(); int bufferSize = 8192; byte[] buf = new byte[bufferSize]; while (true) { int read = 0; if (fis != null) { read = fis.read(buf); } if (read == -1) { break; } dos.write(buf,0,read); } dos.flush(); // 注意关闭socket链接哦，不然客户端会等待server的数据过来， // 直到socket超时，导致数据不完整。 fis.close(); s.close(); log("文件传输完成"); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } void log(String msg) { System.out.println(msg); } public static void main(String args[]) { new TransferFileServer().start(); } }

ClientSocket:辅助类

/*
*PC与Android文件传输
*Android客户端
*/
packagecom.android.test;
importjava.io.BufferedInputStream;
importjava.io.DataInputStream;
importjava.io.DataOutputStream;
importjava.io.IOException;
importjava.net.Socket;
importjava.net.UnknownHostException;
publicclassClientSocket{
privateStringip;
privateintport;
privateSocketsocket=null;
DataOutputStreamout=null;
DataInputStreamgetMessageStream=null;
publicClientSocket(Stringip,intport){
this.ip=ip;
this.port=port;
}
publicvoidcreateConnection(){
try{
socket=newSocket(ip,port);
}catch(UnknownHostExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
if(socket!=null){
try{
socket.close();
}catch(IOExceptione1){
//TODOAuto-generatedcatchblock
e1.printStackTrace();
}
}
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
if(socket!=null){
try{
socket.close();
}catch(IOExceptione1){
//TODOAuto-generatedcatchblock
e1.printStackTrace();
}
}
}finally{
}
}
publicvoidsendMessage(StringsendMessage){
try{
out=newDataOutputStream(socket.getOutputStream());
if(sendMessage.equals("Windows")){
out.writeByte(0x1);
out.flush();
return;
}
if(sendMessage.equals("Unix")){
out.writeByte(0x2);
out.flush();
return;
}
if(sendMessage.equals("Linux")){
out.writeByte(0x3);
out.flush();
}else{
out.writeUTF(sendMessage);
out.flush();
}
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
if(out!=null){
try{
out.close();
}catch(IOExceptione1){
//TODOAuto-generatedcatchblock
e1.printStackTrace();
}
}
}
}
publicDataInputStreamgetMessageStream(){
try{
getMessageStream=newDataInputStream(newBufferedInputStream(
socket.getInputStream()));
//returngetMessageStream;
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
if(getMessageStream!=null){
try{
getMessageStream.close();
}catch(IOExceptione1){
//TODOAuto-generatedcatchblock
e1.printStackTrace();
}
}
}
returngetMessageStream;
}
publicvoidshutDownConnection(){
try{
if(out!=null){
out.close();
}
if(getMessageStream!=null){
getMessageStream.close();
}
if(socket!=null){
socket.close();
}
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
}
}

/* * PC与Android文件传输 * Android客户端 */ package com.android.test; import java.io.BufferedInputStream; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import java.net.Socket; import java.net.UnknownHostException; public class ClientSocket { private String ip; private int port; private Socket socket = null; DataOutputStream out = null; DataInputStream getMessageStream = null; public ClientSocket(String ip, int port) { this.ip = ip; this.port = port; } public void createConnection() { try { socket = new Socket(ip, port); } catch (UnknownHostException e) { // TODO Auto-generated catch block e.printStackTrace(); if (socket != null) { try { socket.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); if (socket != null) { try { socket.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } } finally { } } public void sendMessage(String sendMessage) { try { out = new DataOutputStream(socket.getOutputStream()); if (sendMessage.equals("Windows")) { out.writeByte(0x1); out.flush(); return; } if (sendMessage.equals("Unix")) { out.writeByte(0x2); out.flush(); return; } if (sendMessage.equals("Linux")) { out.writeByte(0x3); out.flush(); } else { out.writeUTF(sendMessage); out.flush(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); if (out != null) { try { out.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } } } public DataInputStream getMessageStream() { try { getMessageStream = new DataInputStream(new BufferedInputStream( socket.getInputStream())); // return getMessageStream; } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); if (getMessageStream != null) { try { getMessageStream.close(); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } } return getMessageStream; } public void shutDownConnection() { try { if (out != null) { out.close(); } if (getMessageStream != null) { getMessageStream.close(); } if (socket != null) { socket.close(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }

Android客户端：Acitivyt实现：

packagecom.android.test;
importjava.io.BufferedOutputStream;
importjava.io.DataInputStream;
importjava.io.DataOutputStream;
importjava.io.FileOutputStream;
importjava.io.IOException;
importandroid.app.Activity;
importandroid.os.Bundle;
importandroid.util.Log;
importandroid.view.View;
importandroid.view.View.OnClickListener;
importandroid.widget.Button;
publicclassMainextendsActivityimplementsOnClickListener{
privateClientSocketcs=null;
privatestaticfinalStringFILE_PATH="/mnt/sdcard/";
privateStringip="192.168.1.103";
privateintport=8821;
privateStringsendMessage="Linux";
privateButtonmButton;
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mButton=(Button)findViewById(R.id.start);
mButton.setOnClickListener(this);
}
privatevoidstart(){
if(createConnection()){
sendMessage();
getMessage();
}
}
privatevoidgetMessage(){
if(cs==null)
return;
DataInputStreaminputStream=null;
inputStream=cs.getMessageStream();
try{
StringsavePath=FILE_PATH;
intbufferSize=8192;
byte[]buf=newbyte[bufferSize];
intpassedlen=0;
longlen=0;

savePath+=inputStream.readUTF();
Log.d("AndroidClient","@@@savePath"+savePath);
DataOutputStreamfileOut=newDataOutputStream(
newBufferedOutputStream(newBufferedOutputStream(
newFileOutputStream(savePath))));
len=inputStream.readLong();
Log.d("AndoridClient","文件的长度为:"+len);
Log.d("AndroidClient","开始接收文件");
while(true){
intread=0;
if(inputStream!=null){
read=inputStream.read(buf);
}
passedlen+=read;
if(read==-1){
break;
}
Log.d("AndroidClient","文件接收了"+(passedlen*100/len)+"%/n");
fileOut.write(buf,0,read);
}
Log.d("AndroidClient","@@@文件接收完成"+savePath);
fileOut.close();
}catch(IOExceptione){
//TODOAuto-generatedcatchblock
e.printStackTrace();
}
}
privatevoidsendMessage(){
if(cs==null)
return;
cs.sendMessage(sendMessage);
}
privatebooleancreateConnection(){
cs=newClientSocket(ip,port);
cs.createConnection();
Log.d("Main","连接服务器成功:");
returntrue;
}
publicvoidonClick(Viewv){
start();
}
}

package com.android.test; import java.io.BufferedOutputStream; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.FileOutputStream; import java.io.IOException; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; public class Main extends Activity implements OnClickListener{ private ClientSocket cs = null; private static final String FILE_PATH = "/mnt/sdcard/"; private String ip = "192.168.1.103"; private int port = 8821; private String sendMessage = "Linux"; private Button mButton; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mButton = (Button)findViewById(R.id.start); mButton.setOnClickListener(this); } private void start() { if (createConnection()) { sendMessage(); getMessage(); } } private void getMessage() { if (cs == null) return; DataInputStream inputStream = null; inputStream = cs.getMessageStream(); try { String savePath = FILE_PATH; int bufferSize = 8192; byte[] buf = new byte[bufferSize]; int passedlen = 0; long len = 0; savePath += inputStream.readUTF(); Log.d("AndroidClient","@@@savePath"+savePath); DataOutputStream fileOut = new DataOutputStream( new BufferedOutputStream(new BufferedOutputStream( new FileOutputStream(savePath)))); len = inputStream.readLong(); Log.d("AndoridClient","文件的长度为:"+len); Log.d("AndroidClient","开始接收文件"); while(true) { int read = 0; if (inputStream != null) { read = inputStream.read(buf); } passedlen += read; if (read == -1) { break; } Log.d("AndroidClient","文件接收了"+(passedlen*100/len)+"%/n"); fileOut.write(buf,0,read); } Log.d("AndroidClient","@@@文件接收完成"+savePath); fileOut.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } private void sendMessage() { if (cs == null) return; cs.sendMessage(sendMessage); } private boolean createConnection() { cs = new ClientSocket(ip, port); cs.createConnection(); Log.d("Main", "连接服务器成功:"); return true; } public void onClick(View v) { start(); } }