JDK的ThreadLocal理解（三）优雅的使用ThreadLoca
public class ActionContext implements Serializable { static ThreadLocal<ActionContext> actionContext = new ThreadLocal<ActionContext>(); /** * Sets the action context for the current thread. * * @param context the action context. */ public static void setContext(ActionContext context) { actionContext.set(context); } /** * Returns the ActionContext specific to the current thread. * * @return the ActionContext for the current thread, is never <tt>null</tt>. */ public static ActionContext getContext() { return actionContext.get(); }}
?经过这种封装后，整个ActionContext类，只有3个地方会涉及ThreadLocal的使用：变量定义、set、get。这3处使用都很简单，不容易出错
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