日期:2014-05-20  浏览次数:20963 次

关于TCP/IP通信的程序错误
不要用API来糊弄我,我要的是能够解决问题的答案

服务器代码
import java.net.*;
import java.io.*;
public class serverTCP
{
  public static void main(String[] args)
  {
  try{
  ServerSocket serversocket=new ServerSocket(2000);
  Socket socket=serversocket.accept();
  BufferedReader buffer=new BufferedReader(new InputStreamReader(socket.getInputStream()));
  String s=buffer.readLine();
  System.out.print(s);
  socket.close();
  }catch(SocketException e){e.printStackTrace();}
  catch(IOException e1){e1.printStackTrace();}
  catch(UnknownHostException e2){e2.printStackTrace();}
  }
}


客户端代码
import java.net.*;
import java.io.*;
public class clientTCP
{
  public static void main(String[] args)
  {
  try{
  Socket socket=new Socket(InetAddress.getByName("localhost"),2000);
  PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
  out.print("我向你发送了一个连接请求,你收到了吗");
  }catch(SocketException e){e.printStackTrace();}
  catch(IOException e1){e1.printStackTrace();}
  }
}

错误:
当我运行客户端代码时会向服务器端发送一个字符串;
这时服务器端程序出现异常错误:
这是怎么回事,是我没有捕捉异常吗。
我应该怎么修改服务器端的代码:?

不要用API来糊弄我,我要的是能够解决问题的答案

------解决方案--------------------
Java code
import java.net.*;
import java.io.*;

public class serverTCP {
    public static void main(String[] args) {
        
        ServerSocket serversocket = null;
        Socket socket = null;
        BufferedReader buffer = null;
        
        try {
            
            serversocket  = new ServerSocket(2000);
            
            socket = serversocket.accept();
            
            buffer = new BufferedReader(new InputStreamReader(
                    socket.getInputStream()));
            
            String s = buffer.readLine();
            
            System.out.print(s);
            
            buffer.close();
            socket.close();
        } catch (SocketException e) {
            e.printStackTrace();
        } catch (IOException e1) {
            e1.printStackTrace();
        } finally {
            try {
                buffer.close();
                socket.close();
                serversocket.close();
            } catch (IOException e) {
                // TODO 自动生成 catch 块
                e.printStackTrace();
            }    
        }
    }
}