黑马程序员——Java基础——网络编程（客户端并发上传图... - 黑马程序员技术交流社区

import java.net.*;
import java.io.*;
/*
需求：实现客户端多线程并发向服务端上传图片。
*/
class PicClient2
{
public static void main(String[] args) throws Exception
{
//此处我没有做那么多的判断
File file = new File(args[0]);
Socket s = new Socket("fe80::58fd:ab7f:707d:dc6a%15",10008);
FileInputStream fis = new FileInputStream(file);
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[] bufIn = new byte[1024];
int num = in.read(bufIn);
System.out.println(new String(bufIn,0,num));
fis.close();
s.close();
}
}
class PicThread implements Runnable
{
private Socket s;
PicThread(Socket s)
{
this.s = s;
}
public void run()
{
int count = 1;
String ip = s.getInetAddress().getHostAddress();
String subip = ip.substring(1,4);
try
{
System.out.println(ip +".....connected");
InputStream in = s.getInputStream();
//此处为讲课中的一点失误，按照正常来说先有***.jpg文件存在
//然后如果再有的话上传的话再有***(n).jpg.
File file = new File(subip+".jpg"); //此行代码应该这么写。
while(file.exists())
file = new File(subip+"("+(count++)+")"+".jpg");
FileOutputStream fos = new FileOutputStream(file);
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("load Success".getBytes());
fos.close();
s.close();
}
catch(Exception e)
{
throw new RuntimeException(ip+"上传失败");
}
}
}
class PicServer2
{
public static void main(String[] args) throws Exception
{
ServerSocket ss = new ServerSocket(10008);
while(true)
{
Socket s = ss.accept();
new Thread(new PicThread(s)).start();
}
}
}

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