Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com

最新推荐文章于 2022-01-03 16:28:46 发布
原创 最新推荐文章于 2022-01-03 16:28:46 发布 · 638 阅读 · 1 ·
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本文详细解析了在使用多个mapper.xml文件时，由于namespace指向同一DAO实现类导致的IllegalArgumentException异常。通过实例展示如何避免此类问题，确保每个ResultMap在各自的namespace内唯一。

异常信息

Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.......AllFieldsResultMap

一般这种情况： 在两个或以上  mapper.xml文件中的namespace指定向同一个dao实现类(如图中OrderGoodsDaoImpl)

附上图

如何解决Mybatis--java.lang.IllegalArgumentException: Result Maps collection already contains value for X
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在整合Spring、Struts2和Mybatis的过程中，可能会遇到各种问题，其中之一就是`java.lang.IllegalArgumentException: Result Maps collection already contains value for X`。这个问题通常出现在Mybatis配置文件中，...
Result Maps collection already contains value for xxx.xxx.dao.BaseResultMap错误
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Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com...
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Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value
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该异常大概的展现方式如下： java.lang.IllegalArgumentException: Result Maps collection already contains value for xxx.xxx.xxx.BaseResultMap 意思是已经存在这个结果集。 这个问题的产生原因可能是：mapper.xml文件中是否存在两个id相同的结果集映射BaseResultMap。 解决方法：删除多余的结果集映射BaseResultMap，重新运行项目。 ...
Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.psp.flb.infoRelease.mapper.InfoReleaseDictItemMapper.BaseResultMap
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请分析下面报错原因:Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2025-10-29 15:59:07 | |ERROR |main |SpringApplication.java:826 |org.springframework.boot.SpringApplication |Application run failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chemicalController': Unsatisfied dependency expressed through field 'chemicalStockService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chemicalStockServiceImpl': Unsatisfied dependency expressed through field 'chemicalStockMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chemicalStockMapper' defined in file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\com\sjsemi\app\surroundinga\mapper\chemical\ChemicalStockMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [com/baomidou/mybatisplus/autoconfigure/MybatisPlusAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:397) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1429) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$159/1988939205.getObject(Unknown Source) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) at com.sjsemi.app.surroundinga.SurroundingAApplication.main(SurroundingAApplication.java:19) Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chemicalStockServiceImpl': Unsatisfied dependency expressed through field 'chemicalStockMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chemicalStockMapper' defined in file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\com\sjsemi\app\surroundinga\mapper\chemical\ChemicalStockMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [com/baomidou/mybatisplus/autoconfigure/MybatisPlusAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:397) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1429) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$159/1988939205.getObject(Unknown Source) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:636) ... 20 common frames omitted Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chemicalStockMapper' defined in file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\com\sjsemi\app\surroundinga\mapper\chemical\ChemicalStockMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [com/baomidou/mybatisplus/autoconfigure/MybatisPlusAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1533) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1413) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$159/1988939205.getObject(Unknown Source) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:636) ... 34 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [com/baomidou/mybatisplus/autoconfigure/MybatisPlusAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:645) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:625) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$159/1988939205.getObject(Unknown Source) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1518) ... 46 common frames omitted Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:640) ... 60 common frames omitted Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.buildSqlSessionFactory(MybatisSqlSessionFactoryBean.java:595) at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.afterPropertiesSet(MybatisSqlSessionFactoryBean.java:431) at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.getObject(MybatisSqlSessionFactoryBean.java:628) at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration.sqlSessionFactory(MybatisPlusAutoConfiguration.java:218) at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$be3e07de.CGLIB$sqlSessionFactory$1(<generated>) at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$be3e07de$$FastClassBySpringCGLIB$$590fb3a1.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$be3e07de.sqlSessionFactory(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ... 61 common frames omitted Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [C:\Users\je14902\IdeaProjects\surrounding-a\target\classes\mybatis\mapper\erc\QtimeStrEndMapperXML.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:123) at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:95) at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.buildSqlSessionFactory(MybatisSqlSessionFactoryBean.java:593) ... 74 common frames omitted Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap at com.baomidou.mybatisplus.core.MybatisConfiguration$StrictMap.put(MybatisConfiguration.java:429) at com.baomidou.mybatisplus.core.MybatisConfiguration$StrictMap.put(MybatisConfiguration.java:399) at com.baomidou.mybatisplus.core.MybatisConfiguration.addResultMap(MybatisConfiguration.java:253) at org.apache.ibatis.builder.MapperBuilderAssistant.addResultMap(MapperBuilderAssistant.java:209) at org.apache.ibatis.builder.ResultMapResolver.resolve(ResultMapResolver.java:47) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:289) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:254) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:246) at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:119) ... 76 common frames omitted Disconnected from the target VM, address: '127.0.0.1:64095', transport: 'socket' Process finished with exit code 1
最新发布
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Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.sjsemi.app.surroundinga.mapper.erc.QtimeStrEndMapper.BaseResultMap ``` --- ### 一、逐层分析异常...
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