在编译时基于枚举获取特定类

public enum ClassType {
    FRONTEND,
    BACKEND,
    DATABASE,
    TESTING
}

ClassType classType = ClassType.FRONTEND;

public class ClassFactory {
    public static Class<?> getClass(ClassType classType) {
        switch (classType) {
            case FRONTEND:
                return FrontendClass.class;
            case BACKEND:
                return BackendClass.class;
            case DATABASE:
                return DatabaseClass.class;
            case TESTING:
                return TestingClass.class;
            default:
                throw new IllegalArgumentException("Invalid class type: " + classType);
        }
    }
}

Class<?> specificClass = ClassFactory.getClass(classType);