package cn.huge.base.common.context;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.stereotype.Service;
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/**
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* @title: 获取非spring容器管理的bean
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* @description: 获取非spring容器管理的bean
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* @company: hugeinfo
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* @author: liyj
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* @time: 2021-11-05 16:51:48
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* @version: 1.0.0
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*/
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@Service
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public class ApplicationContextHolder implements ApplicationContextAware {
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private static ApplicationContext context;
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/**
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* 实现ApplicationContextAware接口的context注入函数, 将其存入静态变量.
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*/
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public void setApplicationContext(ApplicationContext applicationContext) {
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context = applicationContext;
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}
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/**
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* 取得存储在静态变量中的ApplicationContext.
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* @return
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*/
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public static ApplicationContext getContext() {
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return context;
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}
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/**
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* 从静态变量ApplicationContext中取得Bean, 自动转型为所赋值对象的类型.
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* @param name
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* @param <T>
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* @return
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*/
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public static <T> T getBean(String name) {
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checkContext();
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return (T)context.getBean(name);
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}
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/**
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* 从静态变量ApplicationContext中取得Bean, 自动转型为所赋值对象的类型.
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* 如果有多个Bean符合Class, 取出第一个.
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* @param clazz
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* @param <T>
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* @return
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*/
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public static <T> T getBean(Class<T> clazz) {
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checkContext();
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return (T)context.getBeansOfType(clazz);
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}
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public static void cleanContext() {
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context = null;
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}
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private static void checkContext() {
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if (context == null)
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throw new IllegalStateException("上下文未注入, 请在spring容器中定义ApplicationContextHolder");
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}
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}
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/**
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* -------------------_ooOoo_-------------------
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* ------------------o8888888o------------------
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* ------------------88" . "88------------------
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* ------------------(| -_- |)------------------
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* ------------------O\ = /O------------------
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* ---------------____/`---'\____---------------
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* -------------.' \\| |// `.-------------
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* ------------/ \\||| : |||// \------------
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* -----------/ _||||| -:- |||||- \-----------
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* -----------| | \\\ - /// | |-----------
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* -----------| \_| ''\---/'' | |-----------
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* -----------\ .-\__ `-` ___/-. /-----------
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* ---------___`. .' /--.--\ `. . __----------
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* ------."" '< `.___\_<|>_/___.' >'"".-------
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* -----| | : `- \`.;`\ _ /`;.`/ - ` : | |-----
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* -----\ \ `-. \_ __\ /__ _/ .-` / /-----
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* ======`-.____`-.___\_____/___.-`____.-'======
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* -------------------`=---='
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* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* ---------佛祖保佑---hugeinfo---永无BUG----------
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*/
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