java socket远程控制主机，执行命令

socket server服务端代码

package com.core.servers;import java.io.BufferedReader;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.net.ServerSocket;import java.net.Socket;import java.util.HashSet;/** * @author zzq *服务端 */public class Servers extends Thread {Socket socket ;//使用该集合是用于存储ip地址的。static HashSet<String> ips = new HashSet<String>();public  Servers(Socket socket) {this.socket = socket;}@Overridepublic void run() {try {String ip = socket.getInetAddress().getHostAddress();   // socket.getInetAddress() 获取对方的IP地址if(ips.add(ip)){System.out.println("恭喜"+ip+"同学成功连接，当前下载的人数是："+ ips.size());}    DataInputStream in = new DataInputStream(socket.getInputStream());            System.out.println(in.readUTF());//这里 打印的是客户端发送的第0个writeUTF，搞了好久才发现这个问题            String exeResult = exeCmd(in.readUTF());//这里是第一个 就是输入的cmd            DataOutputStream out = new DataOutputStream(socket.getOutputStream());            out.writeUTF("返回执行结果： "   + exeResult + " \t Goodbye!");socket.close();}catch (IOException e) {e.printStackTrace();}}public static void main(String[] args) throws IOException {//建立tcp的服务 ,并且要监听一个端口ServerSocket serverSocket  = new ServerSocket(9090);//9090端口号System.out.println("等待客户端连接....");while(true){//不停的接受用户的链接。Socket socket = serverSocket.accept();new Servers(socket).start();}} /**     * @param commandStr     * @return      * 调用dos命令     */    public static String exeCmd(String commandStr) {          BufferedReader br = null;          try {          StringBuilder sb = new StringBuilder();              Process p = Runtime.getRuntime().exec(commandStr);              br = new BufferedReader(new InputStreamReader(p.getInputStream()));              String line = null;              while ((line = br.readLine()) != null) {                  sb.append(line + "\n");              }           //   System.out.println(sb.toString());          sb.append(commandStr);           return sb.toString();        } catch (Exception e) {              return null;        }           finally          {              if (br != null)              {                  try {                      br.close();                  } catch (Exception e) {                      e.printStackTrace();                  }              }          }      }  }

client代码

package com.core.client;import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.InetAddress;import java.net.Socket;import java.net.UnknownHostException;import java.util.Scanner;/** * @author zzq *客户端 */public class Client {  public static void main(String [] args) throws UnknownHostException        {           InetAddress serverName = InetAddress.getLocalHost();//这是ip地址，建议写配置文件           int port = 9090;//这是端口           try           {             Socket client = null;           while (true) {              client = new Socket(serverName, port);              System.out.println("................请输入命令..................");              Scanner sc = new Scanner(System.in);              String cmdStr = sc.nextLine();              OutputStream outToServer = client.getOutputStream();              DataOutputStream out = new DataOutputStream(outToServer);              out.writeUTF("\n");              out.writeUTF(cmdStr);              client.shutdownOutput();              InputStream inFromServer = client.getInputStream();              DataInputStream in = new DataInputStream(inFromServer);              System.out.println(" 读取服务器返回" + in.readUTF());              client.close();             }           }catch(IOException e)           {              e.printStackTrace();           }        } }

可以多客户端,运行效果