Spring Context 工具类

原创已于 2024-07-24 15:01:11 修改 · 330 阅读

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于 2019-07-12 11:14:01 首次发布

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博客主要介绍了Spring获取bean的工具，同时还涉及获取http请求的request和response的相关内容，聚焦于Spring框架在信息获取方面的应用。

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Spring获取bean工具

@Component
public class SpringContextUtils implements ApplicationContextAware {
	public static ApplicationContext applicationContext; 

	@Override
	public void setApplicationContext(ApplicationContext applicationContext)
			throws BeansException {
		SpringContextUtils.applicationContext = applicationContext;
	}

	public static Object getBean(String name) {
		return applicationContext.getBean(name);
	}

	public static <T> T getBean(String name, Class<T> requiredType) {
		return applicationContext.getBean(name, requiredType);
	}

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

	public static boolean isSingleton(String name) {
		return applicationContext.isSingleton(name);
	}

	public static Class<? extends Object> getType(String name) {
		return applicationContext.getType(name);
	}

}

获取http请求的request和response

public class ThreadContextHolder {

    public static HttpServletResponse getHttpResponse() {
        ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        assert servletRequestAttributes != null;
        return servletRequestAttributes.getResponse();
    }

    public static HttpServletRequest getHttpRequest() {
        ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        assert servletRequestAttributes != null;
        return servletRequestAttributes.getRequest();
    }


}