package com.mossle.core.spring;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
* 在ApplicationContext环境外获取bean的工具类.
*/
public class ApplicationContextHelper implements ApplicationContextAware {
/**
* 向ApplicationContextHolder里设置ApplicationContext.
*
* @param applicationContext
* applicationContext
*/
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
ApplicationContextHolder.getInstance().setApplicationContext(
applicationContext);
}
/**
* 获得ApplicationContext.
*
* @return ApplicationContext
*/
public static ApplicationContext getApplicationContext() {
return ApplicationContextHolder.getInstance().getApplicationContext();
}
/**
* 根据class获得bean.
*
* @param clz
* Class
* @return T
*/
public static <T> T getBean(Class<T> clz) {
return ApplicationContextHolder.getInstance().getApplicationContext()
.getBean(clz);
}
/**
* 根据id获得bean.
*
* @param id
* String
* @return T
*/
public static <T> T getBean(String id) {
return (T) ApplicationContextHolder.getInstance()
.getApplicationContext().getBean(id);
}
}