线程中获取SpringBean-优快云博客

本文介绍了一个Spring工具类SpringApplicationContextHolder的实现方式，该工具类用于获取Spring容器中的bean实例。通过配置spring.xml文件注册工具类，并在业务代码中通过工具类获取所需的service实例，实现了灵活地使用Spring管理的对象。

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1、Spring工具类


public class SpringApplicationContextHolder implements ApplicationContextAware {

	private static ApplicationContext context;

	@Override
	public void setApplicationContext(ApplicationContext context) throws BeansException {
		SpringApplicationContextHolder.context = context;
	}

	public static Object getSpringBean(String beanName) {
		if (null == beanName || 0 == beanName.length()) {
			throw new IllegalArgumentException("beanName is required!");
		}
		return context == null ? null : context.getBean(beanName);
	}

	public static String[] getBeanDefinitionNames() {
		return context.getBeanDefinitionNames();
	}
}

2、spring.xml注册文件配置bean


<bean id="springApplicationContextHolder" class="com.cnpc.pmsapp.commons.utils.SpringApplicationContextHolder" />

<bean id="dailyReportService" class="com.cnpc.pmsapp.dailyreport.service.impl.DailyReportServiceImpl" />

3、线程中调用


IDailyReportService dailyReportService = (IDailyReportService) SpringApplicationContextHolder
					.getSpringBean("dailyReportService");

			String filePath = dailyReportService.createDailyReportExcel();