【疑难杂症】记录一次因代理Controller产生的404问题

spring 3.2.4

为了给每一个controller配置一个拦截器链

import com.google.common.collect.Lists;
import org.aopalliance.intercept.MethodInterceptor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.aop.TargetSource;
import org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.List;


@Component
public class AutoProxyCreator extends AbstractAutoProxyCreator implements InitializingBean {



    /**
     * 序列化版本号
     */
    private static final long serialVersionUID = 1L;
    /**
     * 持有Spring应用上下文
     */
    private volatile ApplicationContext context = null;
    /**
     * 日志打印
     */
    private static Logger logger = LoggerFactory.getLogger(AutoProxyCreator.class);

    /**
     * 拦截器链
     */
    private List<String> intercaptorChainList = null;



    /**
     * 实现自动代理
     */
    @Override
    protected Object[] getAdvicesAndAdvisorsForBean(Class<?> beanClass, String beanName, TargetSource targetSource) {
        // 针对Controller和RequestMapping进行拦截
        if (AnnotationUtils.findAnnotation(beanClass, Controller.class) != null || AnnotationUtils.findAnnotation(beanClass, RequestMapping.class) != null) {
            if (intercaptorChainList == null) {
                throw new RuntimeException("初始化拦截器链失败,异常中断程序!");
            }
            List<MethodInterceptor> methodInterceptorList  = Lists.newArrayList();
            for(String intercaptor : intercaptorChainList){
                if(AnnotationUtils.findAnnotation(beanClass, ExceptedAuthValidate.class) != null ){
                    continue;
                }
                logger.info("开始为bean:"{}"配置拦截器链:"{}"", beanClass, intercaptor);
                BeanFactory beanFactory = getBeanFactory();
                MethodInterceptor methodInterceptor = (MethodInterceptor)beanFactory.getBean(intercaptor);
                methodInterceptorList.add(methodInterceptor);
            }
            return methodInterceptorList.toArray();
        }
        return DO_NOT_PROXY;
    }

    /**
     * 初始化拦截器链
     */
    @Override
    public void afterPropertiesSet() throws Exception {
        intercaptorChainList = Lists.newArrayList();
        intercaptorChainList.add("userLoginInterceptor");
        intercaptorChainList.add("paramValidateInterceptor");
    }



}

然后跑起来发现所有的controller都访问不了了

 AbstractHandlerMethodMapping里打断点可以看到

 被代理了之后，getType出来是代理类，代理类没有注解
 被认为不是一个handler 

 但是普通的AOP却没有问题，还需要了解AOP和这种代理有什么区别