在Spring boot 中提供静态方法来获取bean
该类是工具类, 可参考直接使用:
/**
* 提供获取appcontext实例的方式 ;
*
* @author ThinkPad
*
*/
@Component
public class ApplicationContextProvider implements ApplicationContextAware{
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
System.out.println("====================================" + applicationContext);
ApplicationContextProvider.applicationContext = applicationContext;
}
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
/**
* 通过name获取 Bean.
* @param name
* @return
*/
public static Object getBean(String name){
return getApplicationContext().getBean(name);
}
/**
* 通过class获取Bean.
* @param clazz
* @param <T>
* @return
*/
public static <T> T getBean(Class<T> clazz){
return getApplicationContext().getBean(clazz);
}
/**
* 通过name,以及Clazz返回指定的Bean
* @param name
* @param clazz
* @param <T>
* @return
*/
public static <T> T getBean(String name,Class<T> clazz){
return getApplicationContext().getBean(name, clazz);
}
}
