• 用途
  1，在filter中使用servcie

• 程式碼

@Component
public class SpringUtils implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

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

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    /**
     * 根據name
     *
     * @param name
     * @return
     */
    public
 
 static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    /**
     * 根據型別
     *
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(
 
clazz);
    }

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

}