【mapping】 springmvc的注解mapping无法生效的问题

springmvc 始终无法加载 注解 map, 解决办法

八月 11, 2015 8:24:42 下午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet 'mvc-dispatcher': initialization started
八月 11, 2015 8:24:42 下午 org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
信息: Refreshing WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Tue Aug 11 20:24:42 CST 2015]; parent: Root WebApplicationContext
八月 11, 2015 8:24:42 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml]
八月 11, 2015 8:24:43 下午 org.springframework.web.servlet.handler.SimpleUrlHandlerMapping registerHandler
信息: Mapped URL path [/**] onto handler 'org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0'
八月 11, 2015 8:24:43 下午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet 'mvc-dispatcher': initialization completed in 702 ms

在mvc-dispatcher-servlet.xml 添加<mvc:annotation-driven />

八月 11, 2015 8:22:17 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping registerHandlerMethod
信息: Mapped "{[//hello],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String com.springapp.mvc.HelloController.printWelcome(org.springframework.ui.ModelMap)
八月 11, 2015 8:22:18 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
信息: Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Tue Aug 11 20:22:17 CST 2015]; parent: Root WebApplicationContext
八月 11, 2015 8:22:18 下午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
信息: Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Tue Aug 11 20:22:17 CST 2015]; parent: Root WebApplicationContext
八月 11, 2015 8:22:18 下午 org.springframework.web.servlet.handler.SimpleUrlHandlerMapping registerHandler
信息: Mapped URL path [/**] onto handler 'org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0'
八月 11, 2015 8:22:18 下午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet 'mvc-dispatcher': initialization completed in 1131 ms

关于 

mvc-dispatcher-servlet.xml 名字的部分是在web.xml中配置的

<servlet>
   <servlet-name>mvc-dispatcher</servlet-name>
   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
   <servlet-name>mvc-dispatcher</servlet-name>
   <url-pattern>/</url-pattern>
</servlet-mapping>