spring注入失败，有点绝望了，希望老师能帮我一下，感谢

Question

下面是具体的报错信息。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘userManageController’: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public com.mmall.service.IUserService com.mmall.controller.backend.UserManageController.iUserService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘iUserService’: Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.mmall.dao.UserMapper com.mmall.service.impl.UserServiceImpl.userMapper; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘userMapper’ defined in file [/home/xiao/IdeaProjects/mmall/target/mmall/WEB-INF/classes/com/mmall/dao/UserMapper.class]: Unsatisfied dependency expressed through bean property ‘sqlSessionFactory’: : Error creating bean with name ‘sqlSessionFactory’ defined in class path resource [applicationContext-datasource.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘file [/home/xiao/IdeaProjects/mmall/target/mmall/WEB-INF/classes/mappers/CategoryMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.mmall.dao.CategoryMapper.BaseResultMap; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in class path resource [applicationContext-datasource.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: ‘file [/home/xiao/IdeaProjects/mmall/target/mmall/WEB-INF/classes/mappers/CategoryMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.mmall.dao.CategoryMapper.BaseResultMap

然后我的配置文件：


<context:component-scan base-package=“com.mmall” annotation-config=“true”/>

代码的话：

Answer 1

Geely 2019-01-03 15:03:51

看报错应该是重复节点了。

你的CategoryMapper.xml有问题，Result Maps collection already contains value for com.mmall.dao.CategoryMapper.BaseResultMap，

同学检查一下

Answer 2

geelylucky 2018-12-28 09:32:51

同学，你好，我是geely老师的助教。

具体问题出在Failed to parse mapping resource: ‘file [/home/xiao/IdeaProjects/mmall/target/mmall/WEB-INF/classes/mappers/CategoryMapper.xml]’

你的CategoryMapper.xml有问题，Result Maps collection already contains value for com.mmall.dao.CategoryMapper.BaseResultMap，

请同学查看以下BaseResultMap。

希望能帮助到你。

• Geely #1

  看报错应该是重复节点了。