Error parsing Mapper XML. Cause

最新推荐文章于 2025-01-11 22:12:46 发布

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本文详细解析了在使用SpringMVC与MyBatis进行整合时遇到的BeanCreationException异常，重点在于指出mapper配置文件中的namespace错误导致的异常，并提供了解决方案。

springmvc与mybatis整合出现的异常：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userHandler': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userServiceImp': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userMapper' defined in file [G:\tomcat\apache-tomcat-7.0.57\webapps\springmvc_mybatis\WEB-INF\classes\com\tanghaibin\mapper\UserMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.NullPointerException
 Related cause: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userMapper' defined in file [G:\tomcat\apache-tomcat-7.0.57\webapps\springmvc_mybatis\WEB-INF\classes\com\tanghaibin\mapper\UserMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.NullPointerException

解决：
     mapper配置文件中的namespace没有填；而且namespase的值应该填为：mapper的权限定名；否则还是会抛出异常