Spring 源码之判断属性基本类型-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_10362/article/details/82304933

本文介绍了如何通过Java代码判断给定类型是否为基本类型，包括数组类型、字符串、数字、日期、URI、URL、Locale、Class等。

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判断是否是基本类型

/**
	 * Check if the given type represents a "simple" property:
	 * a primitive, a String or other CharSequence, a Number, a Date,
	 * a URI, a URL, a Locale, a Class, or a corresponding array.
	 * <p>Used to determine properties to check for a "simple" dependency-check.
	 * @param clazz the type to check
	 * @return whether the given type represents a "simple" property
	 * @see org.springframework.beans.factory.support.RootBeanDefinition#DEPENDENCY_CHECK_SIMPLE
	 * @see org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory#checkDependencies
	 */
	public static boolean isSimpleProperty(Class<?> clazz) {
		Assert.notNull(clazz, "Class must not be null");
		return isSimpleValueType(clazz) || (clazz.isArray() && isSimpleValueType(clazz.getComponentType()));
	}

	/**
	 * Check if the given type represents a "simple" value type:
	 * a primitive, a String or other CharSequence, a Number, a Date,
	 * a URI, a URL, a Locale or a Class.
	 * @param clazz the type to check
	 * @return whether the given type represents a "simple" value type
	 */
	public static boolean isSimpleValueType(Class<?> clazz) {
		return ClassUtils.isPrimitiveOrWrapper(clazz) || clazz.isEnum() ||
				CharSequence.class.isAssignableFrom(clazz) ||
				Number.class.isAssignableFrom(clazz) ||
				Date.class.isAssignableFrom(clazz) ||
				clazz.equals(URI.class) || clazz.equals(URL.class) ||
				clazz.equals(Locale.class) || clazz.equals(Class.class);
	}