非Controller中调用Service

package com.library.common;

import org.springframework.beans.BeansException;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

public class ApplicationContextHelper implements ApplicationContextAware {

private static ApplicationContext appCtx;

@Override

public void setApplicationContext( ApplicationContext applicationContext ) throws BeansException {

appCtx = applicationContext;

}

public static Object getBean( String beanName ) {

return appCtx.getBean( beanName );

}

public static <T> T getBean(Class<T> clz) {

return (T)appCtx.getBean(clz);

}

}

<bean id=”SpringApplicationContext” class=”com.library.common.ApplicationContextHelper”></bean>

UserService us=ApplicationContextHelper.getBean(UserService.class);