获得包下所有类命

小半 • 2023年2月17日上午10:43 • 技术随笔 • 阅读 209

public List<String> getClassNamesByPackageName(String packageName) {
		List<String> classNameList = new ArrayList<>();

		try {
			ClassLoader e = Thread.currentThread().getContextClassLoader();
			String path = packageName.replace('.', '/');
			Enumeration<URL> resources = e.getResources(path);
			List<File> dirs = new ArrayList<>();

			while (resources.hasMoreElements()) {
				URL directory = resources.nextElement();
				dirs.add(new File(directory.getFile()));
			}

			Iterator<File> arg6 = dirs.iterator();

			while (arg6.hasNext()) {
				File directory1 = arg6.next();
				classNameList.addAll(findClasses(directory1, packageName));
			}
		} catch (Exception arg7) {
			arg7.printStackTrace();
		}

		return classNameList;
	}

	private List<String> findClasses(File directory, String packageName) throws ClassNotFoundException {
		List<String> className = new ArrayList();
		if (!directory.exists()) {
			return className;
		} else {
			File[] files = directory.listFiles();
			File[] arg6 = files;
			int arg5 = files.length;

			for (int arg4 = 0; arg4 < arg5; ++arg4) {
				File file = arg6[arg4];
				if (file.isDirectory()) {
					assert !file.getName().contains(".");

					className.addAll(findClasses(file, packageName + '.' + file.getName()));
				} else if (file.getName().endsWith(".class")) {
					className.add(packageName + "." + file.getName().substring(0, file.getName().length() - 6));
				}
			}

			return className;
		}
	}

Java通过编译文件获取项目包下的所有类 – 47号Gamer丶 – 博客园

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