socket的Read timed out问题


private static String sendSynMsg(String ipAddr, byte[] datas) throws Exception{   
    //解析服务器地址和端口号   
    int dotPos = ipAddr.indexOf(':');   
    String ip = ipAddr.substring(0, dotPos).trim();   
    int port = Integer.parseInt(ipAddr.substring(dotPos+1).trim());   
    InetSocketAddress endpoint = new InetSocketAddress(ip , port);   
    System.out.println("ip:"+ip+"port:"+port);
    Socket socket = null;   
    OutputStream out = null;   
    InputStream in = null;   
    try {          
        socket = new Socket();   
        //设置发送逗留时间2秒   
        socket.setSoLinger(true, 2);    
        //设置InputStream上调用 read()阻塞超时时间2秒   
        socket.setSoTimeout(2000);   
        //设置socket发包缓冲为32k；   
        socket.setSendBufferSize(32*1024);   
        //设置socket底层接收缓冲为32k   
        socket.setReceiveBufferSize(32*1024);   
        //关闭Nagle算法.立即发包   
        socket.setTcpNoDelay(true);   
        //连接服务器   
        socket.connect(endpoint);   
        //获取输出输入流   
        out = socket.getOutputStream();   
        in = socket.getInputStream();   
        //输出请求             
        out.write(datas);   
        out.flush();   
        //接收应答   
        BufferedReader br = new BufferedReader( new InputStreamReader(in) , 4096);   
        StringWriter received = new StringWriter(4096);   
        char[] charBuf = new char[4096];   
        int size = 0;   
        char lastChar = 0;   
        do {   
            size = br.read(charBuf , 0 , 4096);   
            lastChar = charBuf[size-1];   
            if(lastChar == 0){   
                received.write(charBuf, 0, size - 1);   
            }   
            //System.out.println(received.toString());   
        }while(lastChar != 0);   
           
        return received.toString();   
           
    } finally {   
        if (out != null) {   
            try {   
                out.close();   
            } catch(Exception ex) {   
                ex.printStackTrace();   
            }   
        }   
        if (in != null) {   
            try {   
                in.close();   
            } catch(Exception ex) {   
                ex.printStackTrace();   
            }   
        }          
        if (socket != null) {   
            try {   
                socket.close();   
            } catch(Exception ex) {   
                ex.printStackTrace();   
            }   
        }   
    }                  
} public static void main(String[] args) {
byte[] charBuf = new byte[4096];    try {
sendSynMsg("132.97.101.22:7001",charBuf);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}请问下，传参数 sendSynMsg("132.97.10.55:7001",charBuf);第二个参数该怎么传呢？？