报错信息：Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'BaseResultMap'
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in ServletContext resource [/WEB-INF/conf/spring-common.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:Program FilesApache Software FoundationTomcat 7.0webappsXXWEB-INFclassesXXMapper.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class . Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'BaseResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: BaseResultMap at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322) ... 29 more Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:Program FilesApache Software FoundationTomcat 7.0webappsXX.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class . Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'BaseResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: BaseResultMap at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:412) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:295) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452) ... 36 more Caused by: java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class . Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'BaseResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: BaseResultMap at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:113) at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:88) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:410) ... 39 more Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class . Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'BaseResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: BaseResultMap at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:94) at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseS 2014-01-16 16:27:19,921 INFO [utils.init.CommonContextListener] - <CommonContextListener init listener begin.> tatementNode(XMLStatementBuilder.java:83) at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:128) at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:121) at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:111) ... 41 more Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'BaseResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: BaseResultMap at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:109) at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:115) at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:92) ... 45 more Caused by: java.lang.ClassNotFoundException: Cannot find class: BaseResultMap at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:188) at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:87) at org.apache.ibatis.io.Resources.classForName(Resources.java:250) at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:105) ... 47 more
首先说一下resultType 和 resultMap的定义和区别
resultType：返回数据类型，这里是配置JavaBean，需要保证bean的存在，值的格式为 bean的全类名。
resultMap：返回的数据map,就是在mapper最上面配置的resultMap，没存在就会报错
这个错误的原因说找不到名字为‘BaseResultMap’的JavaBean，在开发的过程中开发没注意，不小心将resultMap 写成了resultType，所以才会报这个错误， 将XML中 resultType改为resultMap 就OK啦，重启tomcat。