GetSpringBeanUtil

import org.springframework.aop.framework.AopContext;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.stereotype.Component;

/**
 * 可以实现在普通类中获取springBean实例
 */
@Component
public final class GetSpringBeanUtil  implements BeanFactoryPostProcessor {
    private static ConfigurableListableBeanFactory beanFactory;

    public GetSpringBeanUtil() {
    }

    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        GetSpringBeanUtil.beanFactory = beanFactory;
    }

    public static <T> T getBean(String name) throws BeansException {
        return (T) beanFactory.getBean(name);
    }

    public static <T> T getBean(Class<T> clz) throws BeansException {
        T result = beanFactory.getBean(clz);
        return result;
    }

    public static boolean containsBean(String name) {
        return beanFactory.containsBean(name);
    }

    public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException {
        return beanFactory.isSingleton(name);
    }

    public static Class<?> getType(String name) throws NoSuchBeanDefinitionException {
        return beanFactory.getType(name);
    }

    public static String[] getAliases(String name) throws NoSuchBeanDefinitionException {
        return beanFactory.getAliases(name);
    }

    public static <T> T getAopProxy(T invoker) {
        return (T) AopContext.currentProxy();
    }
}