java实现socket从服务器连续获取消息的示例

import java.io.DataInputStream;

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());   
            } 
        }    
    }
}