簡介

今天在配製一個mvc web專案時，居然出現瞭如下異常，百思不得其解

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'cacheManager' available

解決辦法

原因 xml mvc的名稱空間 配製錯誤了，錯誤的配製如下：

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 

       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/cache"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context
 

         http://www.springframework.org/schema/context/spring-context.xsd
         http://www.springframework.org/schema/cache
         http://www.springframework.org/schema/cache/spring-cache.xsd">

    <mvc:annotation-driven/>
</beans>    

把其改為如下配製，就不會報異常了
xmlns:mvc=”http://www.springframework.org/schema/mvc”

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <mvc:annotation-driven/>
</beans>