记录一下多次犯的错误，关于 Error creating bean with name ‘sqlSessionFactory‘问题

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最新推荐文章于 2025-03-21 01:20:07 发布

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本文档记录了一次由于映射文件namespace命名错误导致的SqlSessionFactory创建异常的问题。错误主要出现在com.bianzihao.ssmsetting.dao.UserDao.xml文件中，实际命名空间与预期不符，造成了Bean创建失败。解决此类问题的关键在于仔细检查并修正映射文件的命名空间，确保其与对应的DAO接口完全一致。

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问题概述：简单粘贴了一下问题大概的意思就是sqlSessionFactory创建异常的问题，这个问题说起来也是很简单，自己犯了很多次错误都是在映射文件的namespace的命名问题上，遇到这种报错的大概就是映射文件的问题，仔细观察一下，亲身经历，每次都是因为这个找不出问题，浪费了很多时间。
org.springframework.context.support.AbstractApplicationContext.refresh Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in class path resource [conf/applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [conf/mybatis.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘com/bianzihao/ssm/setting/dao/UserDao.xml’. Cause: org.apache.ibatis.builder.BuilderException: Wrong namespace. Expected ‘com.bianzihao.ssm.setting.dao.UserDao’ but found ‘com.bianzihao.crm.setting.dao.UserDao’.
16-Nov-2020 19:41:10.620 涓ラ噸 [RMI TCP Connection(3)-127.0.0.1] org.springframework.web.context.ContextLoader.initWebApplicationContext Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in class path resource [conf/applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [conf/mybatis.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘com/bianzihao/ssm/setting/dao/UserDao.xml’. Cause: org.apache.ibatis.builder.BuilderException: Wrong namespace. Expected ‘com.bianzihao.ssm.setting.dao.UserDao’ but found ‘com.bianzihao.crm.setting.dao.UserDao’.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595)