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  • SpringBeanUtil工具类

     1 package com.missy.util;
     2 
     3 import org.springframework.beans.BeansException;
     4 import org.springframework.context.ApplicationContext;
     5 import org.springframework.context.ApplicationContextAware;
     6 import org.springframework.stereotype.Component;
     7  
     8 @Component
     9 public class SpringBeanUtil implements ApplicationContextAware {
    10     private static ApplicationContext applicationContext = null;
    11     @Override
    12     public void setApplicationContext(ApplicationContext applicationContext) throws             
    13                 BeansException {
    14         SpringBeanUtil.applicationContext = applicationContext;
    15     }
    16     
    17     /**
    18      * 从静态变量applicationContext中得到Bean, 自动转型为所赋值对象的类型.
    19      */
    20     @SuppressWarnings("unchecked")
    21     public static <T> T getBean(String name) {
    22         if(name == null || applicationContext == null)
    23             return null;
    24         return (T) applicationContext.getBean(name);
    25     }
    26  
    27     /**
    28      * 从静态变量applicationContext中得到Bean, 自动转型为所赋值对象的类型.
    29      */
    30     public static <T> T getBean(Class<T> clazz) {
    31         return applicationContext.getBean(clazz);
    32     }
    33  
    34 }

     调用:

    XService  x = SpringBeanUtil.getBean(XService.class);

     

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  • 原文地址:https://www.cnblogs.com/ywy8/p/13570444.html
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