java实现socket从服务器连续获取消息的示例

import java.io.IOException;
import java.net.Socket;

public class Client { 
    public static final String IP_ADDR = "192.168.3.65";//服务器地址  
    public static final int PORT = 8080;//服务器端口号   
    static String text = null;

 public static void main(String[] args) throws IOException {   
        System.out.println("客户端启动...");
        Socket socket = null; 
        socket = new Socket(IP_ADDR, PORT);   
        while (true) {   
            try { 
                //创建一个流套接字并将其连接到指定主机上的指定端口号 
                //读取服务器端数据   
                DataInputStream input = new DataInputStream(socket.getInputStream());   

    byte[] buffer;
    buffer = new byte[input.available()];
    if(buffer.length != 0){
    System.out.println("length="+buffer.length);
    // 读取缓冲区
    input.read(buffer);
    // 转换字符串
    String three = new String(buffer);
    System.out.println("内容=" + three);
    }
            } catch (Exception e) { 
                System.out.println("客户端异常:" + e.getMessage());  
            }
        }   
    }
}