Java ProcessBuilder执行多次CMD命令的使用

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class ProcessBuilderExample {
    public static void main(String[] args) {
        ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c", "dir"); // 设置要执行的命令及参数
        processBuilder.redirectErrorStream(true); // 将错误流合并到输出流中

        try {
            Process process = processBuilder.start(); // 启动进程
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream())); // 获取输出流

            String line;
            while ((line = reader.readLine()) != null) { // 读取输出结果
                System.out.println(line);
            }

            int exitCode = process.waitFor(); // 等待进程结束并获取退出码
            System.out.println("Exit Code: " + exitCode);
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class MultipleCommandsExample {
    public static void main(String[] args) {
        ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c");

        try {
            // 执行第一个命令
            processBuilder.command().add("echo Hello, World!");
            Process process1 = processBuilder.start();
            printOutput(process1);
            process1.waitFor();

            // 执行第二个命令
            processBuilder.command().clear(); // 清空之前的命令
            processBuilder.command().add("dir");
            Process process2 = processBuilder.start();
            printOutput(process2);
            process2.waitFor();
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }

    private static void printOutput(Process process) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line;
        while ((line = reader.readLine()) != null) {
            System.out.println(line);
        }
    }
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;

public class InputOutputExample {
    public static void main(String[] args) {
        ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c", "set /p input=Enter something: && echo You entered: %input%");

        try {
            Process process = processBuilder.start();

            // 向命令提供输入数据
            OutputStream outputStream = process.getOutputStream();
            outputStream.write("Hello, ProcessBuilder!".getBytes());
            outputStream.flush();
            outputStream.close();

            // 读取命令的输出结果
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }

            int exitCode = process.waitFor();
            System.out.println("Exit Code: " + exitCode);
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}