Spring-jcl源码(四) -- LogFactory获取Log对象_spring jcl logfactory-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_26400953/article/details/88894252

本文介绍了一个抽象类LogFactory，该类提供了获取Log对象的方法。通过传递类名或类对象，可以创建用于日志记录的Log实例。

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public abstract class LogFactory {

	/**
	 * 获取给定类的Log对象
	 * Convenience method to return a named logger.
	 * @param clazz containing Class from which a log name will be derived
	 */
	public static Log getLog(Class<?> clazz) {
		return getLog(clazz.getName());
	}

	/**
	 * 根据类名获取Log对象
	 * Convenience method to return a named logger.
	 * @param name logical name of the <code>Log</code> instance to be returned
	 */
	public static Log getLog(String name) {
		return LogAdapter.createLog(name);
	}


	/**
	 * 此方法只存在于与异常公共日志记录API兼容的情况下。
	 * This method only exists for compatibility with unusual Commons Logging API
	 * usage like e.g. {@code LogFactory.getFactory().getInstance(Class/String)}.
	 * @see #getInstance(Class)
	 * @see #getInstance(String)
	 * @deprecated in favor of {@link #getLog(Class)}/{@link #getLog(String)}
	 */
	@Deprecated
	public static LogFactory getFactory() {
		return new LogFactory() {};
	}

	/**
	 * Convenience method to return a named logger.
	 * <p>This variant just dispatches straight to {@link #getLog(Class)}.
	 * @param clazz containing Class from which a log name will be derived
	 * @deprecated in favor of {@link #getLog(Class)}
	 */
	@Deprecated
	public Log getInstance(Class<?> clazz) {
		return getLog(clazz);
	}

	/**
	 * Convenience method to return a named logger.
	 * <p>This variant just dispatches straight to {@link #getLog(String)}.
	 * @param name logical name of the <code>Log</code> instance to be returned
	 * @deprecated in favor of {@link #getLog(String)}
	 */
	@Deprecated
	public Log getInstance(String name) {
		return getLog(name);
	}

}

LogFactory中getLog获取LogAdapter创建的Log对象。