java 小程序错误

dongdelw 2013-09-04 04:25:26

程序出错：开始没反应，随后出现错误如图
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源程序：
Client.java
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import java.io.*;
import java.net.*;
public class Client{
public static void main(String[] args) throws Exception{
Socket client = new Socket("127.0.0.1",5678);
DataInputStream in=new DataInputStream(client.getInputStream());
DataOutputStream out=new DataOutputStream(client.getOutputStream());
out.writeUTF("hello Server");
String readServer;
while(true){//读取服务器数据，需要延时等待。
readServer=in.readUTF();
System.out.println(readServer);
out.writeUTF("Thanks Server");
if(readServer.equals("Thanks Client"))break;
}
}
}
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Server.java
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import java.net.*;
import java.io.*;
public class Server{
public static void main(String args[]) throws Exception{
ServerSocket server=new ServerSocket(5678);//创建ServerSocket对象，等待客户端访问
Socket user=server.accept();//响应客户端的请求，获取的客户端创建的Socker对象。
DataOutputStream out=new DataOutputStream(user.getOutputStream());
DataInputStream in=new DataInputStream(user.getInputStream());
out.writeUTF("hello Client");
String readClient;
while(true){ //读取客户端数据，需要延时等待。
readClient=in.readUTF();
System.out.println(readClient);
out.writeUTF("Thanks Client");
if(readClient.equals("Thanks Server"))break;
}
}
}

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