Spring的ApplicationContext.getBean()的具体实现

public class SpringUtil {

private static Log logger = LogFactory.getLog(SpringUtil.class);
/** Spring框架应用上下文对象 */
private static ApplicationContext factory = getApplicationContext();

static{
getApplicationContext();
}

public static void setFactoryBean(ApplicationContext factory){
SpringUtil.factory = factory;
}
/**
* 获得Spring框架应用上下文对象
* @return ApplicationContext
*/
public static ApplicationContext getApplicationContext()
{
//判断如果 ApplicationContext 的对象 ＝＝ NULL
if ( factory == null )
{
if(logger.isDebugEnabled()) logger.debug("===================================Init Spring's ApplicationContext=========================================");
try
{
ConsolePrinter.println("******init spring application context");
factory = new ClassPathXmlApplicationContext(new String[]{"applicationContext-faengine.xml","applicationContext-common.xml"
//,"applicationContext-daoSupport-test.xml"
});
}
catch ( Exception e1 )
{
if(logger.isDebugEnabled()) logger.debug("err = " + e1.getMessage());
e1.printStackTrace();
}
}
//返回ApplicationContext
return factory;
}

调用的时候，直接使用

ApplicationContext ac = SpringUtil.getApplicationContext();
IModelMappingUCC modelMappingUCC = (IModelMappingUCC)ac.getBean("modelMappingUCC");

就可以直接使用这个对象了！