整合Spring和Mybatis 中org.springframework.beans.factory.BeanCreationException错误

这两天学习strut2和spring的整合，启动服务器后总是爆粗如下错误，

org.springframework.beans.factory.BeanCreationException: 

Error creating bean with name 'sqlSessionFactory' defined in URL [file:/E:/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/StrutsTest/WEB-INF/classes/applicationContext.xml]: 

Cause: org.apache.ibatis.builder.BuilderException: Error creating document instance.  Cause: org.xml.sax.SAXParseException:Document root element "mapper", must match DOCTYPE root "configuration".

网上有如下解答：

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Document root element "mapper", must match DOCTYPE root "configuration"
后来才发现，原来是xml文件的！doctype定义写错了。


mybatis.xml和mapper.xml都用了一个doctype


原来不是这样的。




mybatis.xml：


"http://mybatis.org/dtd/mybatis-3-config.dtd">


mapper.xml


"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

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applicationContext.xml 示例如下

userMap.xml 示例：

   
       select 
        * 
       from 
        student
       where 
        id = #{Id}