逆向工程重复生成代码导致出错

严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘itemsMapper’ defined in file [D:\eclipse_ee_workspace.metadata.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\shopping\WEB-INF\classes\com\sparrow\ssm\mapper\ItemsMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sparrow.ssm.mapper.ItemsMapper.BaseResultMap
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory1.getObject(AbstractBeanFactory.java:304)atorg.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)atorg.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)atorg.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:681)atorg.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)atorg.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)atorg.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:381)atorg.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293)atorg.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)atorg.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4745)atorg.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5207)atorg.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)atorg.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1419)
at org.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1409)atjava.util.concurrent.FutureTask.run(FutureTask.java:266)atjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)atjava.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sparrow.ssm.mapper.ItemsMapper.BaseResultMap
at org.mybatis.spring.mapper.MapperFactoryBean.checkDaoConfig(MapperFactoryBean.java:100)
at org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1612)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549)
… 21 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sparrow.ssm.mapper.ItemsMapper.BaseResultMap
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.loadXmlResource(MapperAnnotationBuilder.java:164)
at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.parse(MapperAnnotationBuilder.java:118)
at org.apache.ibatis.binding.MapperRegistry.addMapper(MapperRegistry.java:71)
at org.apache.ibatis.session.Configuration.addMapper(Configuration.java:651)
at org.mybatis.spring.mapper.MapperFactoryBean.checkDaoConfig(MapperFactoryBean.java:97)
… 24 more
Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sparrow.ssm.mapper.ItemsMapper.BaseResultMap
at org.apache.ibatis.session.ConfigurationStrictMap.put(Configuration.java:782)atorg.apache.ibatis.session.ConfigurationStrictMap.put(Configuration.java:754)
at org.apache.ibatis.session.Configuration.addResultMap(Configuration.java:536)
at org.apache.ibatis.builder.MapperBuilderAssistant.addResultMap(MapperBuilderAssistant.java:207)
at org.apache.ibatis.builder.ResultMapResolver.resolve(ResultMapResolver.java:47)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:284)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:251)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:243)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
… 30 more

十二月 24, 2017 1:11:22 下午 org.apache.catalina.core.StandardContext startInternal
严重: One or more listeners failed to start. Full details will be found in the appropriate container log file
十二月 24, 2017 1:11:22 下午 org.apache.catalina.core.StandardContext startInternal
严重: Context [/shopping] startup failed due to previous errors
十二月 24, 2017 1:11:22 下午 org.apache.catalina.core.ApplicationContext log
信息: Closing Spring root WebApplicationContext
十二月 24, 2017 1:11:22 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler [“http-nio-8080”]
十二月 24, 2017 1:11:22 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler [“ajp-nio-8009”]
十二月 24, 2017 1:11:22 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 4972 ms

解决：重新生成一次，把原来生成的文件删掉。
生成多次会在文件后面追加，不是覆盖。