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在windows下装了个linux虚拟机,两者之间传输文件挺麻烦的.写了个简单的文件传输程序,来方便自己数据传送.
server 端:
import
java.io.BufferedReader;
import
java.io.BufferedWriter;
import
java.io.File;
import
java.io.FileOutputStream;
import
java.io.InputStream;
import
java.io.InputStreamReader;
import
java.io.OutputStreamWriter;
import
java.io.PrintWriter;
import
java.net.ServerSocket;
import
java.net.Socket;
class
CPThread
extends
Thread
{
Socket socket = null;
public CPThread(Socket socket){ this.socket = socket;
} public void run(){ try{ InputStream in = socket.getInputStream(); PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter( socket.getOutputStream())),true); while(true) { //第一个參数为命令 byte cmd[] = new byte[128]; int b = 0; while(b<cmd.length){ b += in.read(cmd, b, cmd.length–b); } int ends = 0; for(int i=0;i<cmd.length;i++){ if(cmd[i]==‘-0‘){ ends = i; break; } } String cmds = new String(cmd,0,ends); if(“exit“.equals(cmds)){ System.exit(0); } else if(“cp“.equals(cmds)){ byte[] filename = new byte[256]; b = 0; while(b<filename.length){ b += in.read(filename, b, filename.length–b); } ends = 0; for(int i=0;i<filename.length;i++){ if(filename[i]==‘-0‘){ ends = i; break; } } String filenames = new String(filename,0,ends); File fileout = new File(filenames); if(fileout.isFile()){ throw new Exception(“file exists“+fileout.getAbsolutePath()); } FileOutputStream fos = new FileOutputStream(fileout); byte[] filesize = new byte[64]; b = 0; while(b<filesize.length){ b += in.read(filesize, b, filesize.length–b); } ends = 0; for(int i=0;i<filesize.length;i++){ if(filesize[i]==‘-0‘){ ends = i; break; } } String filesizes = new String(filesize,0,ends); System.out.println(“filesize:“+filesizes); int ta = Integer.parseInt(filesizes); byte[] buf = new byte[1024*10]; //InputStream ins = socket.getInputStream(); while(true){ if(ta==0){ break; } int len = ta; if(len>buf.length){ len = buf.length; } int rlen = in.read(buf, 0, len); //int rlen = ins.read(buf, 0, len); ta -= rlen; if(rlen>0){ fos.write(buf,0,rlen); fos.flush(); } else{ break; } } out.println(“cp finish!“); fos.close(); break; } else{ System.out.println(“err command!“); out.println(“err command!“); break; } } socket.close(); }catch(Exception e){ e.printStackTrace(); } }
}public
class
JCPServer
{
/** * @param args */ public static void main(String[] args) throws Exception { // TODO Auto-generated method stub int num = args.length; if(num<=0){ System.out.println(“please input server port!“); System.exit(0); } int port = Integer.parseInt(args[0]); System.out.println(“you input port:“+port); //绑定接受数据端口 ServerSocket s = new ServerSocket(port); while(true){ Socket socket = s.accept(); new CPThread(socket).start(); } }}
client 端
import
java.io.BufferedWriter;
import
java.io.File;
import
java.io.FileInputStream;
import
java.io.OutputStream;
import
java.io.OutputStreamWriter;
import
java.io.PrintWriter;
import
java.net.InetAddress;
import
java.net.Socket;
public
class
JCPClient
{
/** * @param args */ public static void main(String[] args)throws Exception { // TODO Auto-generated method stub int num = args.length; if(num<=3){ System.out.println(“please input server ip port filefrom fileto!“); System.exit(0); } System.out.println(“host:“+args[0]); System.out.println(“port:“+args[1]); System.out.println(“filefrom:“+args[2]); System.out.println(“fileto:“+args[3]); InetAddress addr = InetAddress.getByName(args[0]); Socket socket = new Socket(addr, Integer.parseInt(args[1])); OutputStream out = socket.getOutputStream(); byte[] cmd = new byte[128]; byte[] tcmd = “cp“.getBytes(); for(int i=0;i<tcmd.length;i++){ cmd[i] = tcmd[i]; } cmd[tcmd.length] = ‘-0‘; out.write(cmd,0,cmd.length); //文件名称 byte[] file = new byte[256]; byte[] tfile = args[3].getBytes(); for(int i=0;i<tfile.length;i++){ file[i] = tfile[i]; } file[tfile.length] = ‘-0‘; out.write(file,0,file.length); //大小 File filein = new File(args[2]); byte[] size = new byte[64]; byte[] tsize = (“”+filein.length()).getBytes(); for(int i=0;i<tsize.length;i++){ size[i] = tsize[i]; } size[tsize.length] = ‘-0‘; out.write(size,0,size.length); FileInputStream fis = null; byte[] buf = new byte[1024*10]; //char[] bufC = new char[1024*10]; fis = new FileInputStream(filein); int readsize = 0; //OutputStream ops = socket.getOutputStream(); while((readsize = fis.read(buf, 0, buf.length))>0){ out.write(buf,0,readsize); out.flush(); } socket.close(); }}
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