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  • Spring源码情操陶冶-AbstractApplicationContext#prepareRefresh

    前言-阅读源码有利于陶冶情操,本文承接前文Spring源码情操陶冶-AbstractApplicationContext
    约束:

    1. 本文指定contextClass为默认的XmlWebApplicationContext
    2. 从属AbstractApplicationContext#refresh方法

    AbstractApplicationContext#prepareRefresh

    代码清单如下

    protected void prepareRefresh() {
    		//设置刷新开始时间
    		this.startupDate = System.currentTimeMillis();
    		
    		//设置ApplicationContext的激活状态为true
    		synchronized (this.activeMonitor) {
    			this.active = true;
    		}
    
    		if (logger.isInfoEnabled()) {
    			logger.info("Refreshing " + this);
    		}
    
    		// Initialize any placeholder property sources in the context environment
    		initPropertySources();
    
    		// Validate that all properties marked as required are resolvable
    		// see ConfigurablePropertyResolver#setRequiredProperties
    		getEnvironment().validateRequiredProperties();
    	}
    

    如官方注释所示,上述预刷新方法主要是设置refresh操作的起始时间、active=true、并且初始化属性资源的校验(此处可忽略,无任何操作)

    下节预告

    Spring源码情操陶冶-AbstractApplicationContext#obtainFreshBeanFactory

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  • 原文地址:https://www.cnblogs.com/question-sky/p/6703800.html
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