1. 建filter类package com.ssm.blog.filter;import java.io.IOException;import javax.servlet.FilterChain;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import ja

1. service类package com.ssm.blog.aop;public interface AopService { public void sayAround(String param); }2. serviceImpl类package com.ssm.blog.aop;public class AopServiceImpl implements AopS

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.