java终端命令工具

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

/**
 * 终端命令工具
 * 
 * @author JHL
 * @version 1.0
 * @date 2023/11/7 14:15
 * @since : JDK 11
 */
public class CommandUtil {

    /**
     * 终端程序
     * windows下为 cmd
     * linux/mac下为 [ sh | bash | ... ]
     */
    public static final String COMMAND_SH = "cmd";
    /**
     * 终端-行结束符
     */
    public static final String COMMAND_LINE_END = "\n";
    /**
     * 终端-退出命令
     */
    public static final String COMMAND_EXIT = "exit\n";
    /**
     * 调试模式
     */
    private static final boolean IS_DEBUG = true;

    /**
     * 执行单条命令
     */
    public static List<String> execute(String command) {
        return execute(new String[]{command});
    }

    /**
     * 可执行多行命令（bat）
     */
    public static List<String> execute(String[] commands) {
        List<String> results = new ArrayList<>();
        int status = -1;
        if (commands == null || commands.length == 0) {
            return null;
        }
        debug("所有要执行的命令: " + String.join(" ", commands));
        Process process = null;
        BufferedReader successReader = null;
        BufferedReader errorReader = null;
        StringBuilder errorMsg = null;
        DataOutputStream dos = null;
        try {
            process = Runtime.getRuntime().exec(COMMAND_SH);
            dos = new DataOutputStream(process.getOutputStream());
            // 依次执行每条命令
            for (String command : commands) {
                if (command == null) {
                    continue;
                }
                dos.write(command.getBytes());
                dos.writeBytes(COMMAND_LINE_END);
                dos.flush();
                debug("执行命令: " + command);
            }
            // 退出
            dos.writeBytes(COMMAND_EXIT);
            dos.flush();
            // 等待执行代码 0 正常执行完毕退出
            status = process.waitFor();
            // 读取进程标准正常输出
            successReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String lineStr;
            while ((lineStr = successReader.readLine()) != null) {
                results.add(lineStr + "\n");
            }
            debug("命令行输出: \n" + String.join("", results));
            // 读取进程错误输出
            errorReader = new BufferedReader(new InputStreamReader(process.getErrorStream()));
            errorMsg = new StringBuilder();
            while ((lineStr = errorReader.readLine()) != null) {
                errorMsg.append(lineStr + "\n");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (dos != null) {
                    dos.close();
                }
                if (successReader != null) {
                    successReader.close();
                }
                if (errorReader != null) {
                    errorReader.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (process != null) {
                process.destroy();
            }
        }
        debug(String.format(Locale.CHINA, "命令执行结束,错误消息:%s,执行状态码:%d", errorMsg, status));
        return results;
    }

    /**
     * DEBUG LOG
     *
     * @param message
     */
    private static void debug(String message) {
        if (IS_DEBUG) {
            System.out.println("######################### \t " + message);
        }
    }

    public static void main(String[] args) {
        List<String> result = CommandUtil.execute("ping 192.168.100.40");
    }
}