java实现socket连接，向指定主机指定端口发送socket数据，并获取响应数据

public static void main(String [] args) throws IOException {
connect("192.168.8.102", 80);
//即可在控制台输入命令，回车后会发送命令到远程主机，并在控制台打印响应数据
}

//远程连接
public static void connect(String host,int port){
try {
Socket sock = new Socket(host, port);
// 创建一个写线程
new TelnetWriter(sock.getOutputStream()).start();
// 创建一个读线程
new TelnetReader(sock.getInputStream()).start();
} catch (Exception e) {
// TODO: handle exception
}
}

class TelnetWriter extends Thread {
private PrintStream out;

public TelnetWriter(OutputStream out) {
this.out = new PrintStream(out);
}
public void run() {
try {
// 包装控制台输入流
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
// 反复将控制台输入写到Telnet服务程序
while (true)
out.println(in.readLine());
} catch (IOException exc) {
exc.printStackTrace();
}
}
}

class TelnetReader extends Thread {
private InputStreamReader in;

public TelnetReader(InputStream in) {
this.in = new InputStreamReader(in);
}
public void run() {
try {
// 反复将Telnet服务程序的反馈信息显示在控制台屏幕上
while (true) {
// 从Telnet服务程序读取数据
int b = in.read();
if (b == -1)
System.exit(0);
// 将数据显示在控制台屏幕上
System.out.print((char) b);
}
} catch (IOException exc) {
exc.printStackTrace();
}
}
}