获取SpringBean对象工具类

• Z时代
• 2024-01-10
• 分类：综合

# 获取SpringBean工具类

SpringBeanUtil代码如下:

package com.meeno.wzq.util;
import org.springframework.beans.BeansException;  
import org.springframework.context.ApplicationContext;  
import org.springframework.context.ApplicationContextAware;  
import org.springframework.stereotype.Component;
/**  
 * @description: SpringBeanUtil  
 * @author: Wzq  
 * @create: 2019-10-08 16:24  
 */  
@Component  
//实现Spring Bean生命周期接口ApplicationContextAware  
public class SpringBeanUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;
    @Override  
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {  
        if(SpringBeanUtil.applicationContext == null) {  
            SpringBeanUtil.applicationContext = applicationContext;  
        }  
        System.out.println("---------------------------------------------------------------------");  
        System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringBeanUtil.applicationContext+"========");  
        System.out.println("---------------------------------------------------------------------");  
    }
    //获取applicationContext  
    public static ApplicationContext getApplicationContext() {  
        return applicationContext;  
    }
    //通过name获取 Bean.  
    public static Object getBean(String name){  
        return getApplicationContext().getBean(name);  
    }
    //通过class获取Bean.  
&nbsp; &nbsp; public static <t> T getBean(Class<t> clazz){  
&nbsp; &nbsp; &nbsp; &nbsp; return getApplicationContext().getBean(clazz);  
&nbsp; &nbsp; }
&nbsp; &nbsp; //通过name,以及Clazz返回指定的Bean  
&nbsp; &nbsp; public static <t> T getBean(String name,Class<t> clazz){  
&nbsp; &nbsp; &nbsp; &nbsp; return getApplicationContext().getBean(name, clazz);  
&nbsp; &nbsp; }  
}

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