其實就是程序中執行加載 xml配置文件的時候
- 1.應用程序下加載
- 2.web模式下加載
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-hibernate-mysql.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
可以看日誌,每次執行new ClassPathXmlApplicationContext(),都會顯示下面日誌:
程序執行到: new ClassPathXmlApplicationContext("testspring2.xml"); |
2010-5-29 0:48:48 org.springframework.context.support.AbstractApplicationContext prepareRefresh 先刷新ApplicationContext,調用AbstractApplicationContext類的 prepareRefresh 注: AbstractApplicationContext是 ClassPathXmlApplicationContext的父類 public abstract class AbstractApplicationContext extends DefaultResourceLoader implements ConfigurableApplicationContext, DisposableBean { |
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@bf32c: display name [org.springframework.context.support.ClassPathXmlApplicationContext@bf32c]; startup date [Sat May 29 00:48:48 CST 2010]; root of context hierarchy |
2010-5-29 0:48:48 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions 信息: Loading XML bean definitions from class path resource [testspring.xml] 開始加載spring配置文件,調用xml.XmlBeanDefinitionReader類的loadBeanDefinitions方法進行加載 注意:spring 和 hibernate 常見的錯誤之一,經常在讀取xml文件時出現語法和格式的錯誤,如DTD錯誤等.多數是使用者自己在書寫xml時犯的語法錯誤,但也有一些是hibernate和 spring不同版本的BUG |
2010-5-29 0:48:48 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory 信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@bf32c]: org.springframework.beans.factory.support.DefaultListableBeanFactory@af8358 2010-5-29 0:48:48 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons 獲得缺省的工廠對象,spring缺省的工廠對象是 DefaultListableBeanFactory.preInstantiateSingletons |
信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@af8358: defining beans [personServiceBean]; root of factory hierarchy 最後爲所有xml文件中定義(以及採用標註方式定義)的bean建立實例 |