android socket 通信（2）--传文件

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接受文件的线程：

import java.io.DataInputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.net.ServerSocket;import java.net.Socket;public class Sthread implements Runnable{ServerSocket server = null;@Overridepublic void run() {// TODO Auto-generated method stubtry {server = new ServerSocket(33456);            while (true) {                try {                   System.out.println("开始监听。。。");                   Socket socket = server.accept();                   System.out.println("有链接");                   receiveFile(socket);                } catch (Exception e) {                    e.printStackTrace();                }            }} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}    public static void receiveFile(Socket socket) throws IOException {        byte[] inputByte = null;        int length = 0;        DataInputStream din = null;        FileOutputStream fout = null;        String savePath; // 文件保存路径        try {    // 判断接收文件的文件夹是否存在，若不存在，则创建        savePath = "/mnt/sdcard/atest2/";    File fileDir = new File(savePath);    if (!fileDir.exists()) { // 若不存在    fileDir.mkdir();    }            din = new DataInputStream(socket.getInputStream());           // fout = new FileOutputStream(new File("/sdcard2/DCIM/Camera/"+din.readUTF()));if (new File(savePath+din.readUTF()).exists()) { // 若对应文件名的文件已存在，则删除原来的文件new File(savePath+din.readUTF()).delete();}            fout = new FileOutputStream(new File(savePath+din.readUTF()));            inputByte = new byte[1024];            System.out.println("开始接收数据...");            while (true) {                if (din != null) {                    length = din.read(inputByte, 0, inputByte.length);                }                if (length == -1) {                    break;                }                System.out.println(length);                fout.write(inputByte, 0, length);                fout.flush();            }            System.out.println("接收完成");        } catch (Exception ex) {            ex.printStackTrace();        } finally {            if (fout != null)                fout.close();            if (din != null)                din.close();            if (socket != null)                socket.close();        }    }}

发送文件的线程：

import java.io.DataOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.net.InetSocketAddress;import java.net.Socket;import android.util.Log;public class Cthread implements Runnable{ int length = 0;     byte[] sendByte = null;     Socket socket = null;     DataOutputStream dout = null;     FileInputStream fin = null;     String pathString = null;     String IP = null; public String getIP() {return IP;}public void setIP(String iP) {IP = iP;}public String getPathString() {return pathString;}public void setPathString(String pathString) {this.pathString = pathString;}     @Overridepublic void run() {// TODO Auto-generated method stubSystem.out.println("客户端向本机发起连接");        socket = new Socket();        try {socket.connect(new InetSocketAddress("255.255.255.255", 33456),10 * 1000);dout = new DataOutputStream(socket.getOutputStream());File file = new File(pathString);fin = new FileInputStream(file);            sendByte = new byte[1024];            dout.writeUTF(file.getName());            while((length = fin.read(sendByte, 0, sendByte.length))>0){                dout.write(sendByte,0,length);                dout.flush();            }} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}        finally{            if (dout != null)try {dout.close();            if (fin != null)                fin.close();            if (socket != null)                socket.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}        }}}

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