以下是照着毕老师敲的代码，不知道哪里出错了报异常，烦请大神们帮我找找，该怎么改？
import java.io.*;
import java.net.*;
import java.util.*;
class PicThread implements Runnable
{
private Socket s;
PicThread(Socket s)
{
this.s = s;
}
public void run()
{
int count = 1;
String ip= s.getInetAddress().getHostAddress();
try
{
System.out.println(ip+"...connected");
InputStream in = s.getInputStream();
File file =new File(ip+"("+count+")"+".jpg");
while(file.exists())
file = new File(ip+"("+(count++)+")"+".jpg");
FileOutputStream fos = new FileOutputStream("Copy_pigeon.jpg");
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".getBytes());
fos.close();
s.close();
}
catch(Exception e)
{
throw new RuntimeException(ip+"上传失败");
}
}
}
class PicClient2 {
public static void main(String[] args) throws Exception
{
if (args.length!=1)
{
System.out.println("请选择一个jpg格式的图片");
return;
}
File file = new File(args[0]);
if (!(file.exists()&&file.isFile()))
{
System.out.println("该文件有问题，要么不存在要么不是文件!");
return;
}
if(!file.getName().endsWith(".jpg"))
{
System.out.println("图片格式错误请重新选择。");
return;
}
if(file.length()>1024*1024*5)
{
System.out.println("文件过大，没安好心");
return;
}
Socket s = new Socket("192.168.1.137",10009);
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);
}
//告诉服务端数据已写完；
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();
}
}
/*
* 服务端
* */
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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