package CH10;

/**
 * Created by Cai Ye on 2016/5/8.
 */
import java.net.*;
import java.io.*;
/**
 * 猜数字客户端
 */
public class TCPClient {
    public static void main(String[] args) {
        Socket socket = null;
        OutputStream os = null;
        InputStream is = null;
        BufferedReader br = null;
        byte[] data = new byte[2];
        try{
            //建立连接
            socket = new Socket(
                    "127.0.0.1",10001);

            //发送数据
            os= socket.getOutputStream();

            //读取反馈数据
            is = socket.getInputStream();

            //键盘输入流
            br = new BufferedReader(
                    new InputStreamReader(System.in));

            //多次输入
            while(true){
                System.out.println("请输入数字：");
                //接收输入
                String s = br.readLine();
                //结束条件
                if(s.equals("quit")){
                    os.write("quit".getBytes());
                    break;
                }
                //校验输入是否合法
                boolean b = true;
                try{
                    Integer.parseInt(s);
                }catch(Exception e){
                    b = false;
                }
                if(b){ //输入合法
                    //发送数据
                    os.write(s.getBytes());
                    //接收反馈
                    is.read(data);
                    //判断
                    switch(data[0]){
                        case 0:
                            System.out.println("相等！祝贺你！");
                            break;
                        case 1:
                            System.out.println("大了！");
                            break;
                        case 2:
                            System.out.println("小了！");
                            break;
                        default:
                            System.out.println("其它错误！");
                    }
                    //提示猜的次数
                    System.out.println("你已经猜了" + data[1] + "次！");
                    //判断次数是否达到5次
                    if(data[1] >= 5){
                        System.out.println("你挂了！");
                        //给服务器端线程关闭的机会
                        os.write("quit".getBytes());
                        //结束客户端程序
                        break;
                    }
                }else{ //输入错误
                    System.out.println("输入错误！");
                }
            }
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            try{
                //关闭连接
                br.close();
                is.close();
                os.close();
                socket.close();
            }catch(Exception e){
                e.printStackTrace();
            }
        }
    }
}