之前有给大家讲到过关于spring容器初始化过程的内容，那么下面要讲的就是整个Spring初始化过程的详解，一起来了解一下吧。
首先编写除一个比较简单的启动类。
之后，打个断点到AbstractApplicationContext当中的refresh()方法当中。
public class Application
{
public static void main(String[] args)
{
// setConfig -> call this.refresh()
ClassPathXmlApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("context.xml");
}
}先来看一下，refresh当中都调用了哪些方法：
public void refresh() throws BeansException, IllegalStateException
{
synchronized(this.startupShutdownMonitor)
{
// Prepare this context for refreshing.
prepareRefresh();
// Tell the subclass to refresh the internal bean factory.
ConfigurableListableBeanFactory beanFactory = obtainFreshBeanFactory();
// Prepare the bean factory for use in this context.
prepareBeanFactory(beanFactory);
try
{
// Allows post-processing of the bean factory in context subclasses.
postProcessBeanFactory(beanFactory);
// Invoke factory processors registered as beans in the context.
invokeBeanFactoryPostProcessors(beanFactory);
// Register bean processors that intercept bean creation.
registerBeanPostProcessors(beanFactory);
// Initialize message source for this context.
initMessageSource();
// Initialize event multicaster for this context.
initApplicationEventMulticaster();
// Initialize other special beans in specific context subclasses.
onRefresh();
// Check for listener beans and register them.
registerListeners();
// Instantiate all remaining (non-lazy-init) singletons.
finishBeanFactoryInitialization(beanFactory);
// Last step: publish corresponding event.
finishRefresh();
}
catch (BeansException ex)
{
if (logger.isWarnEnabled())
{
logger.warn("Exception encountered during context initialization - " +
"cancelling refresh attempt: " + ex);
}
// Destroy already created singletons to avoid dangling resources.
destroyBeans();
// Reset 'active' flag.
cancelRefresh(ex);
// Propagate exception to caller.
throw ex;
}
finally
{
// Reset common introspection caches in Spring's core, since we
// might not ever need metadata for singleton beans anymore...
resetCommonCaches();
}
}
}图文详解!
大家可以仔细的去看看上面的图片内容，这个就是整个初始化的大致流程了，希望上面的内容可以对你有所帮助哦!
更多java常见问题及解决方法，请继续关注奇Q工具网来进行了解吧!
推荐阅读：