Hadoop命令不能从java prcoessbuilder执行

import java.io.IOException;

public class HadoopCommandExecutor {
    public static void main(String[] args) {
        try {
            ProcessBuilder pb = new ProcessBuilder("hadoop", "fs", "-ls", "/");
            
            // 获取当前系统的环境变量，并添加Hadoop的相关环境变量
            ProcessBuilder.Environment environment = pb.environment();
            environment.put("HADOOP_HOME", "/path/to/hadoop");
            environment.put("HADOOP_CONF_DIR", "/path/to/hadoop/conf");
            
            Process process = pb.start();
            
            // 获取命令执行结果
            int exitCode = process.waitFor();
            if (exitCode == 0) {
                // 命令执行成功
                // 处理命令输出结果
            } else {
                // 命令执行失败
                // 处理错误信息
            }
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}