import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* 普通类调用Spring bean对象：
* 说明：
* 一、此类须要放到App.java同包或者子包下才能被扫描，不然失效。
* @author Administrator
*/
@Component
public class SpringUtil implements ApplicationContextAware{
private static ApplicationContext applicationContext = null;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
if(SpringUtil.applicationContext == null){
SpringUtil.applicationContext = applicationContext;
}
}
//获取applicationContext
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
//经过name获取 Bean.
public static Object getBean(String name){
return getApplicationContext().getBean(name);
}
//经过class获取Bean.
public static <T> T getBean(Class<T> clazz){
return getApplicationContext().getBean(clazz);
}
//经过name,以及Clazz返回指定的Bean
public static <T> T getBean(String name,Class<T> clazz){
return getApplicationContext().getBean(name, clazz);
}
}