public class SocketClientDemo

{

    /**

     * 向指定的地址发送请求数据

     * @param ipAddr

     * @param reqData

     */

    public void sendReq(String ipAddr,String reqData)

    {

        Socket client = null;

        BufferedReader br = null;

        BufferedOutputStream bos = null;

        String respStr = "";

        //设置字符集编码格式

        String characterCoding = "GBK";

        //将ip:port 类型的字符串拆分

        int dotPos = ipAddr.indexOf(":");

        String ip = ipAddr.substring(0, dotPos).trim();

        int port = Integer.parseInt(ipAddr.substring(dotPos+1).trim());

        try

        {

            client = new Socket(ip,port);

            //设置发送等待时间（单位：s）

            client.setSoLinger(true, 5);

            //设置超时时间（单位：ms）

            client.setSoTimeout(5000);

            //从client端获取输出流

            bos = new BufferedOutputStream(client.getOutputStream());

            bos.write(reqData.getBytes(characterCoding));

            bos.flush();

            br = new BufferedReader(new InputStreamReader(client.getInputStream()));

            respStr = br.readLine();

            System.out.println("respStr is:>>>>>>"+respStr);

        }

        catch (UnknownHostException e)

        {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        catch (IOException e)

        {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        finally

        {

            if(br != null)

            {

                try

                {

                    br.close();

                }

                catch (IOException e)

                {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

            }

            if(bos!=null)

            {

                try

                {

                    bos.close();

                }

                catch (IOException e)

                {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

            }

            if(client!=null)

            {

                try

                {

                    client.close();

                }

                catch (IOException e)

                {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

            }

        }

    }

}

public class SocketClientTest

{

    /**

     * @param args

     */

    public static void main(String[] args)

    {

        // TODO Auto-generated method stub

        SocketClientDemo client = new SocketClientDemo();

        client.sendReq("192.168.1.136:9997", "this is socket client!");

    }

}