springUtil 获取bean，用于单元测试

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import org.junit.Test;import org.springframework.beans.factory.BeanFactory;import org.springframework.context.support.ClassPathXmlApplicationContext;/*** Spring工具类，提供取得Spring配置文件中定义的Bean的方法<br>用于单元测试* */public class SpringUtil {/** 唯一实例 */private static SpringUtil INSTALL = null;/**Spring工厂接口*/private BeanFactory beanFactory = null;/** Spring配置文件 */private static final String SPRING_CFG = "classpath:applicationContext-global2.xml";/** 私有构造器 */private SpringUtil() {}/*** 取得类的唯一实例* @return*/public synchronized static SpringUtil getInstance() {   if (INSTALL == null) {    INSTALL = new SpringUtil();   }   return INSTALL;}/*** 取得BeanFactory*/private synchronized BeanFactory getBeanFactory() {   if (this.beanFactory == null) {    this.beanFactory = new ClassPathXmlApplicationContext(SPRING_CFG);   }   return this.beanFactory;}/*** 通过在Spring配置文件中定义的bean名称，从IOC容器中取得实例* * @param beanName*            bean名称* @return bean名称对应实例Object，使用时需要强制类型转换*/public Object getBean(String beanName) throws NullPointerException {   if (beanName == null) {    throw new java.lang.NullPointerException("beanName不能为空!");   }   return this.getBeanFactory().getBean(beanName);}}

我这里有个时间日期的工具类，在applicationContext-global2.xml中定义这个bean。

import java.util.Date;import com.boventech.zyk.util.DateUtil;public class Test {@SuppressWarnings("static-access")public static void main(String[] args){DateUtil dateUtil = (DateUtil) SpringUtil.getInstance().getBean("dataUtil");System.out.println(dateUtil.format(new Date()));}}

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