Caused by: org.apache.ibatis.builder.IncompleteElementException: Could not find result map com.leyou.pojo.Brand
at org.apache.ibatis.builder.MapperBuilderAssistant.getStatementResultMaps(MapperBuilderAssistant.java:346) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:290) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:109) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:788) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.session.Configuration.getMappedStatements(Configuration.java:677) ~[mybatis-3.4.6.jar:3.4.6]
at tk.mybatis.mapper.mapperhelper.MapperHelper.processConfiguration(MapperHelper.java:279) ~[mapper-core-1.0.4.jar:na]
at tk.mybatis.spring.mapper.MapperFactoryBean.checkDaoConfig(MapperFactoryBean.java:93) ~[mapper-spring-1.0.4.jar:na]
at org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44) ~[spring-tx-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
... 29 common frames omitted
Caused by: java.lang.IllegalArgumentException: Result Maps collection does not contain value for com.leyou.pojo.Brand
at org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:888) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.session.Configuration.getResultMap(Configuration.java:640) ~[mybatis-3.4.6.jar:3.4.6]
at org.apache.ibatis.builder.MapperBuilderAssistant.getStatementResultMaps(MapperBuilderAssistant.java:344) ~[mybatis-3.4.6.jar:3.4.6]
原來是自己mapper中出現錯誤 select語句中 使用resultMap 時，需要自己寫數據庫與javaBean的對應信息，最後將id傳進去
而採用resultType時只需要將JavaBean的路徑傳進去即可 讀者可以去了解resultMap 和resultType的區別