SpringMvc+MyBatis+Shiro整合，shiro的realm不能注入Bean

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springMvc+Mybatis和shiro整合，shiro的realm引入Autowire加入接口数据，但是一直无法成功注入，提示问题如下:

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.sxkj.service.inter.UserServerInter] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency.Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

碰到此问题，一开始以为是springmvc注入配置问题，但是controller注入又都正常，此时陷入百思不得解。一项项跟踪，发现原来shiro 自定义realm的认证阶段属于filter，当时的spring bean还没有读取进来。
最后通过配置web.xml文件，把spring mvc的xml提高一点优先级，才最终解决了这个问题。下面是web.xml完整配置:<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"version="3.1"><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-mybatis.xml,classpath:dispatcher-servlet.xml,classpath:spring-shiro.xml</param-value></context-param><servlet><servlet-name>dispatcher</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:dispatcher-servlet.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><!-- 设置拦截 !--><servlet-mapping><servlet-name>dispatcher</servlet-name><url-pattern>/</url-pattern></servlet-mapping><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><context-param><param-name>log4jContextName</param-name><param-value>log4jContext</param-value></context-param><!-- 添加shiro的过滤器代理!--><filter><filter-name>shiroFilter</filter-name><filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class><async-supported>true</async-supported><init-param><param-name>targetFilterLifecycle</param-name><param-value>true</param-value></init-param></filter><filter-mapping><filter-name>shiroFilter</filter-name> <!-- 此处必需写成"/*"，如果只写"/" ,过滤器没有作用--><url-pattern>/*</url-pattern></filter-mapping>
</web-app>

红色为添加的部分，有碰到此问题的同学可以看看。