从Java File运行hadoop命令

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

public class HadoopCommandRunner {
    public static void main(String[] args) {
        try {
            // 创建ProcessBuilder对象，并设置Hadoop命令及参数
            ProcessBuilder pb = new ProcessBuilder("hadoop", "command1", "command2");
            pb.redirectErrorStream(true); // 将错误输出与标准输出合并

            // 启动进程并等待执行完成
            Process process = pb.start();
            process.waitFor();

            // 读取命令执行结果
            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}