SpringBeanAutowiringSupport.java 文件源码

/**
 * Process {@code @Autowired} injection for the given target object,
 * based on the current web application context.
 * <p>Intended for use as a delegate.
 * @param target the target object to process
 * @see org.springframework.web.context.ContextLoader#getCurrentWebApplicationContext()
 */
public static void processInjectionBasedOnCurrentContext(Object target) {
    Assert.notNull(target, "Target object must not be null");
    WebApplicationContext cc = ContextLoader.getCurrentWebApplicationContext();
    if (cc != null) {
        AutowiredAnnotationBeanPostProcessor bpp = new AutowiredAnnotationBeanPostProcessor();
        bpp.setBeanFactory(cc.getAutowireCapableBeanFactory());
        bpp.processInjection(target);
    }
    else {
        if (logger.isDebugEnabled()) {
            logger.debug("Current WebApplicationContext is not available for processing of " +
                    ClassUtils.getShortName(target.getClass()) + ": " +
                    "Make sure this class gets constructed in a Spring web application. Proceeding without injection.");
        }
    }
}