使用Java从$PATH获取可执行文件的绝对路径

import java.io.File;

public class ExecutablePath {
    public static void main(String[] args) {
        String path = System.getenv("PATH");
        String[] paths = path.split(File.pathSeparator);

        String executableName = "executable"; // 可执行文件名

        for (String dir : paths) {
            File file = new File(dir, executableName);
            if (file.exists() && file.isFile()) {
                String absolutePath = file.getAbsolutePath();
                System.out.println("可执行文件的绝对路径：" + absolutePath);
                break;
            }
        }
    }
}