Could not instantiate id generator [entity-name=com.tax.entity.inter.TScmSyncResult]错误解决

本文详细介绍了Java持久化API(JPA)中四种主键生成策略:TABLE, SEQUENCE, IDENTITY 和 AUTO 的使用场景及区别。针对不同数据库如MySQL、Oracle的特点,解释了如何配置实体类的主键生成方式。

背景:

该问题出现在我一个双数据源的项目中,分别是MySQL、Oracle。工程启动时抛出该异常:

Could not instantiate id generator [entity-name=com.tax.entity.inter.TScmSyncResult]

翻译过来就是:无法实例化ID生成器

该实体类的主键设置方式:

@Id
@GeneratedValue(strategy=GenerationType.SEQUENCE,generator = "t_scm_sync_result_seq")
@SequenceGenerator(name="t_scm_sync_result_seq",sequenceName = "t_scm_sync_result_seq")
@Column(name ="ID",nullable=false,precision=10,scale=0)
public Integer getId() {
	return id;
}

也就是说无法支持主键:SEQUENCE 序列的方式生成。

下面介绍一下GenerationType的使用及区别:

JPA提供的四种标准用法为TABLE,SEQUENCE,IDENTITY,AUTO. 

TABLE:使用一个特定的数据库表格来保存主键。 
SEQUENCE:根据底层数据库的序列来生成主键,条件是数据库支持序列。 
IDENTITY:主键由数据库自动生成(主要是自动增长型) 
AUTO:主键由程序控制。
 

GenerationType.TABLE

使用一个特定的数据库表格来保存主键,持久化引擎通过关系数据库的一张特定的表格来生成主键,这种策略的好处就是不依赖于外部环境和数据库的具体实现,在不同数据库间可以很容易的进行移植,但由于其不能充分利用数据库的特性,所以不会优先使用。该策略一般与另外一个注解一起使用@TableGenerator,@TableGenerator注解指定了生成主键的表(可以在实体类上指定也可以在主键字段或属性上指定),然后JPA将会根据注解内容自动生成一张表作为序列表(或使用现有的序列表)。如果不指定序列表,则会生成一张默认的序列表,表中的列名也是自动生成,数据库上会生成一张名为sequence的表(SEQ_NAME,SEQ_COUNT)。序列表一般只包含两个字段:第一个字段是该生成策略的名称,第二个字段是该关系表的最大序号,它会随着数据的插入逐渐累加。

复制代码

@Id
    @Column(name="id")
    @GeneratedValue(strategy=GenerationType.TABLE,generator="table_gen")
    @TableGenerator(
            name = "table_gen",  
            table="fendo_generator",  
            pkColumnName="seq_name",     //指定主键的名字
            pkColumnValue="fendos",      //指定下次插入主键时使用默认的值
            valueColumnName="seq_id",    //该主键当前所生成的值,它的值将会随着每次创建累加
            initialValue = 1,            //初始化值
            allocationSize=1             //累加值
            )
    public Integer getUid() {
        return uid;
    }

复制代码

 

GenerationType.SEQUENCE

在某些数据库中,不支持主键自增长,比如Oracle,其提供了一种叫做"序列(sequence)"的机制生成主键。此时,GenerationType.SEQUENCE就可以作为主键生成策略。该策略的不足之处正好与TABLE相反,由于只有部分数据库(Oracle,PostgreSQL,DB2)支持序列对象,MYsql不支持序列,所以该策略一般不应用于其他数据库。类似的,该策略一般与另外一个注解一起使用@SequenceGenerator,@SequenceGenerator注解指定了生成主键的序列.然后JPA会根据注解内容创建一个序列(或使用一个现有的序列)。如果不指定序列,则会自动生成一个序列SEQ_GEN_SEQUENCE。

@Id  
@GeneratedValue(strategy = GenerationType.SEQUENCE,generator="fendo_seq")  
@SequenceGenerator(name="fendo_seq", sequenceName="seq_name")

 


GenerationType.IDENTITY

此种主键生成策略就是通常所说的主键自增长,数据库在插入数据时,会自动给主键赋值,比如MySQL可以在创建表时声明"auto_increment" 来指定主键自增长。该策略在大部分数据库中都提供了支持(指定方法或关键字可能不同),但还是有少数数据库不支持,所以可移植性略差。使用自增长主键生成策略是只需要声明strategy = GenerationType.IDENTITY即可。

@Id  
@GeneratedValue(strategy = GenerationType.IDENTITY)


GenerationType.AUTO

把主键生成策略交给持久化引擎(persistence engine),持久化引擎会根据数据库在以上三种主键生成策略中选择其中一种。此种主键生成策略比较常用,由于JPA默认的生成策略就是GenerationType.AUTO,所以使用此种策略时.可以显式的指定@GeneratedValue(strategy = GenerationType.AUTO)也可以直接@GeneratedValue。

@Id  
@GeneratedValue(strategy = GenerationType.AUTO)

 

借鉴:https://www.cnblogs.com/hongchengshise/p/10612301.html

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com.neu.NeuApplication Application Version: 3.3.0 Spring Boot Version: 2.2.12.RELEASE 17:05:17.488 [background-preinit] INFO o.h.v.i.util.Version - [<clinit>,21] - HV000001: Hibernate Validator 6.0.21.Final 17:05:17.500 [restartedMain] INFO c.neu.NeuApplication - [logStarting,55] - Starting NeuApplication on Lg139 with PID 17056 (D:\ji-neng-da-sai\chushi\carbon\neu-admin\target\classes started by Lg133 in D:\ji-neng-da-sai\chushi\carbon) 17:05:17.503 [restartedMain] DEBUG c.neu.NeuApplication - [logStarting,56] - Running with Spring Boot v2.2.12.RELEASE, Spring v5.2.12.RELEASE 17:05:17.503 [restartedMain] INFO c.neu.NeuApplication - [logStartupProfileInfo,655] - The following profiles are active: druid 17:05:20.938 [restartedMain] INFO o.a.c.h.Http11NioProtocol - [log,173] - Initializing ProtocolHandler ["http-nio-9090"] 17:05:20.938 [restartedMain] INFO o.a.c.c.StandardService - [log,173] - Starting service [Tomcat] 17:05:20.938 [restartedMain] INFO o.a.c.c.StandardEngine - [log,173] - Starting Servlet engine: [Apache Tomcat/9.0.41] 17:05:21.117 [restartedMain] INFO o.a.c.c.C.[.[.[/] - [log,173] - Initializing Spring embedded WebApplicationContext 17:05:21.721 [restartedMain] DEBUG c.n.f.s.f.JwtAuthenticationTokenFilter - [init,242] - Filter 'jwtAuthenticationTokenFilter' configured for use 17:05:23.147 [restartedMain] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - [refresh,559] - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforController': Unsatisfied dependency expressed through field 'logininforService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforServiceImpl': Unsatisfied dependency expressed through field 'logininforMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforMapper' defined in file [D:\ji-neng-da-sai\chushi\carbon\neu-system\target\classes\com\neu\system\mapper\SysLogininforMapper.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/neu/framework/config/MyBatisConfig.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 [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult 17:05:23.147 [restartedMain] INFO c.a.d.p.DruidDataSource - [close,2032] - {dataSource-0} closing ... 17:05:23.172 [restartedMain] INFO o.a.c.c.StandardService - [log,173] - Stopping service [Tomcat] 17:05:23.214 [restartedMain] ERROR o.s.b.SpringApplication - [reportFailure,826] - Application run failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforController': Unsatisfied dependency expressed through field 'logininforService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforServiceImpl': Unsatisfied dependency expressed through field 'logininforMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforMapper' defined in file [D:\ji-neng-da-sai\chushi\carbon\neu-system\target\classes\com\neu\system\mapper\SysLogininforMapper.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/neu/framework/config/MyBatisConfig.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 [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) 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:405) 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.neu.NeuApplication.main(NeuApplication.java:18) 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:498) at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforServiceImpl': Unsatisfied dependency expressed through field 'logininforMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforMapper' defined in file [D:\ji-neng-da-sai\chushi\carbon\neu-system\target\classes\com\neu\system\mapper\SysLogininforMapper.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/neu/framework/config/MyBatisConfig.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 [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1420) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ... 24 common frames omitted Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sysLogininforMapper' defined in file [D:\ji-neng-da-sai\chushi\carbon\neu-system\target\classes\com\neu\system\mapper\SysLogininforMapper.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/neu/framework/config/MyBatisConfig.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 [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1524) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1404) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ... 37 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [com/neu/framework/config/MyBatisConfig.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 [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:657) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:637) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1176) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:556) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) 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:1307) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1509) ... 48 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 [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:652) ... 61 common frames omitted Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:612) at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:490) at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:632) at com.neu.framework.config.MyBatisConfig.sqlSessionFactory(MyBatisConfig.java:131) at com.neu.framework.config.MyBatisConfig$$EnhancerBySpringCGLIB$$20bce190.CGLIB$sqlSessionFactory$0(<generated>) at com.neu.framework.config.MyBatisConfig$$EnhancerBySpringCGLIB$$20bce190$$FastClassBySpringCGLIB$$7e5d8a25.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) at com.neu.framework.config.MyBatisConfig$$EnhancerBySpringCGLIB$$20bce190.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:498) at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ... 62 common frames omitted Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\ji-neng-da-sai\chushi\carbon\neu-carbon-wms\target\classes\mapper\materiallnfo\WmsMaterialInfoMapper.xml]'. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:123) at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:95) at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:610) ... 75 common frames omitted Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.neu.carbon.wms.mapper.WmsMaterialInfoMapper.WmsMaterialInfoResult at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:992) at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:948) at org.apache.ibatis.session.Configuration.addResultMap(Configuration.java:704) 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) ... 77 common frames omitted Process finished with exit code 1
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11-18
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