This method is taken from the open source project: ThinkGem Wang Zhen / JeeSite
https://git.oschina.net/thinkgem/jeesite
First import the jar package
Create SpringContextHolder class
/**
* Copyright © 2012-2013 All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
*/
package com.code.platform.common.utils;
import org.apache.commons.lang3.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
/**
* 以静态变量保存Spring ApplicationContext, 可在任何代码任何地方任何时候取出ApplicaitonContext.
*
* @author Zaric
* @date 2013-5-29 下午1:25:40
*/
//@Service
public class SpringContextHolder implements ApplicationContextAware, DisposableBean {
private static ApplicationContext applicationContext = null;
private static Logger logger = LoggerFactory.getLogger(SpringContextHolder.class);
/**
* 取得存储在静态变量中的ApplicationContext.
*/
public static ApplicationContext getApplicationContext() {
assertContextInjected();
return applicationContext;
}
/**
* 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型.
*/
@SuppressWarnings("unchecked")
public static <T> T getBean(String name) {
assertContextInjected();
return (T) applicationContext.getBean(name);
}
/**
* 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型.
*/
public static <T> T getBean(Class<T> requiredType) {
assertContextInjected();
return applicationContext.getBean(requiredType);
}
/**
* 清除SpringContextHolder中的ApplicationContext为Null.
*/
public static void clearHolder() {
logger.debug("清除SpringContextHolder中的ApplicationContext:"
+ applicationContext);
applicationContext = null;
}
/**
* 实现ApplicationContextAware接口, 注入Context到静态变量中.
*/
@Override
public void setApplicationContext(ApplicationContext applicationContext) {
// logger.debug("注入ApplicationContext到SpringContextHolder:{}", applicationContext);
if (SpringContextHolder.applicationContext != null) {
logger.warn("SpringContextHolder中的ApplicationContext被覆盖, 原有ApplicationContext为:" + SpringContextHolder.applicationContext);
}
SpringContextHolder.applicationContext = applicationContext; // NOSONAR
}
/**
* 实现DisposableBean接口, 在Context关闭时清理静态变量.
*/
@Override
public void destroy() throws Exception {
SpringContextHolder.clearHolder();
}
/**
* 检查ApplicationContext不为空.
*/
private static void assertContextInjected() {
Validate.validState(applicationContext != null, "applicaitonContext属性未注入, 请在applicationContext.xml中定义SpringContextHolder.");
}
}
Add configuration to applicationContext.xml
<!-- 获取bean工具注入 -->
<bean id="springContextHolder" class="com.code.platform.common.utils.SpringContextHolder" lazy-init="false"/>
call method
// Service
SystemConfigService srv = SpringContextHolder.getBean(SystemConfigService.class);
// Dao
DictDao dictDao = SpringContextHolder.getBean(DictDao.class);
In this way, you can get the spring managed object from the non-spring managed object
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The above methods have not been tried in other frameworks. If the summary is incomplete, you can refer to the code of the original framework. ThinkGem Wang Zhen / JeeSite