SpringContextUtil.java
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package com.bjivt.util;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
@Component
public class SpringContextUtil implements ApplicationContextAware {
private static ApplicationContext applicationContext; // Spring应用上下文环境
/*
* 实现了ApplicationContextAware 接口，必须实现该方法；
*通过传递applicationContext参数初始化成员变量applicationContext
*/
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
/**
* 根据bean名称，获取service\dao
* @param name
* @return
* @throws BeansException
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(String name) throws BeansException {
return (T) applicationContext.getBean(name);
}
/**
* 根据class，获取service\dao
* @param name
* @return
* @throws BeansException
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(Class cla) throws BeansException {
return (T) applicationContext.getBean(cla);
}
}