import java.io.IOException;
import java.net.ServerSocket;
public class usrLocalPostScanner {
public static void main(String[] args) {
// 循环访问端口
for (int port = 1; port <= 65535; port++) {
try {
// 建立新的服务端口
// 如果在此端口已经有服务存在,则抛出异常
ServerSocket server = new ServerSocket(port);
} catch (IOException e) {
// 打印出异常
System.out.println("There is a server on port " + port + ".");
}
}
}
}