利用TCP协议 上传图片、文件
源码：
上传图片：
服务端：
package com.hbsi.net;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
public class JpgServer2 {
/**
* @param args
*/
public static void main(String[] args) throws Exception{
ServerSocket ss=new ServerSocket(10001);
while(true){
Socket s=ss.accept();
new Thread(new JpgThread(s)).start();
}
//ss.close();
}
}
class JpgThread implements Runnable{
private Socket s;
public JpgThread(Socket s){
this.s=s;
}
@Override
public void run() {
int count=1;
try{
String ip=s.getInetAddress().getHostAddress();
System.out.println(ip+"---连接成功…………");
InputStream in=s.getInputStream();
File dir=new File("F:\\picture");
File f=new File(dir,ip+"("+count+").jpg");
while(f.exists())
f=new File(dir,ip+"("+(count++)+").jpg");
FileOutputStream fos=new FileOutputStream(f);
byte[] buf=new byte[1024];
int len=0;
while((len=in.read(buf))!=-1){
fos.write(buf,0,len);
}
OutputStream out=s.getOutputStream();
out.write("上传成功了".getBytes());
fos.close();
s.close();
}catch(Exception e){
e.printStackTrace();
}
}
}
客户端
package com.hbsi.net
;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
public class JpgClient2 {
/**
* @param args
*/
public static void main(String[] args)throws Exception {
if(args.length==0){
System.out.println("请指定一个jpg文件");
return;
}
File f=new File(args[0]);
Socket s=new Socket("192.168.49.109",10001);
FileInputStream fis=new FileInputStream(f);
OutputStream out=s.getOutputStream();
byte[] buf=new byte[1024];
int len=0;
while((len=fis.read(buf))!=-1){
out.write(buf, 0, len);
}
s.shutdownOutput();
InputStream in=s.getInputStream();
byte[] b=new byte[1024];
int num=in.read(b);
System.out.println(new String(b,0,num));
fis.close();
s.close();
}
}
编译运行结果：
192.168.49.109---连接成功…………
上传成功
上传文件：
package com.hbsi.net;
import java.net.*;
import java.io.*;
public class JpgServer {
/**
* @param args
*/
public static void main(String[] args) throws Exception{
ServerSocket ss=new ServerSocket(9009);
Socket s=ss.accept();
InputStream in=s.getInputStream();
FileOutputStream fos=new FileOutputStream("E:\\dog.txt");
byte[] buf=new byte[1024];
int len=0;
while((len=in.read(buf))!=-1){
fos.write(buf,0,len);
}
OutputStream out=s.getOutputStream();
out.write("上传成功了".getBytes());
fos.close();
s.close();
ss.close();
}
}
package com.hbsi.net;
import java.net.*;
import java.io.*;
public class JpgClient {
/**
* @param args
*/
public static void main(String[] args)throws Exception {
Socket s=new Socket("192.168.49.109",9009);
FileInputStream fis=new FileInputStream("d:\\2.txt");
OutputStream out=s.getOutputStream();
byte[] buf=new byte[1024];
int len=0;
while((len=fis.read(buf))!=-1){
out.write(buf, 0, len);
}
s.shutdownOutput();
InputStream in=s.getInputStream();
byte[] b=new byte[1024];
int num=in.read(b);
System.out.println(new String(b,0,num));
fis.close();
s.close();
}
}
