package com.kevinblandy.simple.webchat.utils;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.beans.BeansException;

import org.springframework.context.ApplicationContext;

import org.springframework.context.ApplicationContextAware;

public class SpringContext implements ApplicationContextAware{

private static final Logger LOGGER = LoggerFactory.getLogger(SpringContext.class);

/**

* ApplicationContext

*/

private static ApplicationContext applicationContext;

/**

* Spring调用注入

*/

@Override

public void setApplicationContext(ApplicationContext applicationContext)throws BeansException {

LOGGER.info("IOC容器注入:{}",applicationContext);

SpringContext.applicationContext = applicationContext;

}

public static ApplicationContext getApplicationContext(){

/**

*

*/

return SpringContext.applicationContext;

}

/**

* 根据类类型获取实例

* @param clazz

* @return

*/

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

try{

return getApplicationContext().getBean(clazz);

}catch(Exception e){

return null;

}

}

/**

* 根据bean的id和类类型获取实例

* @param clazz

* @param name

* @return

*/

public static <T> T getBean(Class<T> clazz,String name){

try{

return getApplicationContext().getBean(clazz, name);

}catch(Exception e){

return null;

}

}

/**

* 根据bean的id获取实例

* @param name

* @return

*/

public static Object getBean(String name){

try{

return getApplicationContext().getBean(name);

}catch(Exception e){

return null;

}

}

}