问题：我建立一个全局拦截器，当然，这是测试的时候建立的，我把它命名为LogFilter，它继承了Filter，web应用启动的顺序是：listener->filter->servlet，而因为项目应用了springboot，所以我们项目启动时，先初始化listener，因此注解的bean会被初始化和注入；然后再来就filter的初始化，再接着才到我们的dispathServlet的初始化，因此，当我们需要在filter里注入一个注解的bean时，就会注入失败，因为filter初始化时，注解的bean还没初始化，没法注入。
那么，解决方法如下：
public FilterRegistrationBean filterProxy(){
FilterRegistrationBean registrationBean = new FilterRegistrationBean();
DelegatingFilterProxy httpBasicFilter = new DelegatingFilterProxy();
registrationBean.setFilter(httpBasicFilter);
Map<String,String> m = new HashMap<String,String>();
m.put("targetBeanName","logFilter");
m.put("targetFilterLifecycle","true");
registrationBean.setInitParameters(m);
List<String> urlPatterns = new ArrayList<String>();
urlPatterns.add("/*");
registrationBean.setUrlPatterns(urlPatterns);
return registrationBean;
}
这样你就可以在LogFilter里面添加@Autowired下的bean了。
public class LogFilter implements Filter {
@Autowired
@Qualifier(value="rztRabbitTemplate")
private RabbitTemplate rabbitTemplate;
@Bean public FilterRegistrationBean securityFilter() { FilterRegistrationBean registration = new FilterRegistrationBean(); registration.setFilter(new DelegatingFilterProxy("SecurityFilter")); registration.addInitParameter("targetFilterLifecycle", "true"); registration.addUrlPatterns("/*"); registration.setOrder(102); return registration; } @Bean(name = "SecurityFilter") public SecurityFilter getSecurityFilter(){ return new SecurityFilter(); }
转自：http://blog.csdn.net/u013030980/article/details/55270818#comments
原文：http://www.cnblogs.com/zhangmingcheng/p/7490015.html
