org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map 异常解决
如果出现这样的异常
org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map com.life.Dao.BookMapper.Books
at org.apache.ibatis.builder.MapperBuilderAssistant.getStatementParameterMap(MapperBuilderAssistant.java:315)
at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:291)
at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:113)
at org.apache.ibatis.session.Configuration.lambda$buildAllStatements$2(Configuration.java:816)
at java.base/java.util.Collection.removeIf(Collection.java:414)
at org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:815)
at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:792)
at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:787)
at org.apache.ibatis.binding.MapperMethod$SqlCommand.resolveMappedStatement(MapperMethod.java:257)
at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:227)
at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:53)
at org.apache.ibatis.binding.MapperProxy.lambda$cachedMapperMethod$0(MapperProxy.java:61)
at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1719)
at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:61)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:56)
at com.sun.proxy.$Proxy19.selectBook(Unknown Source)
at com.life.Service.BookServiceImpl.selectBook(BookServiceImpl.java:45)
at Mytest.test_1(Mytest.java:19)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: java.lang.IllegalArgumentException: Parameter Maps collection does not contain value for com.life.Dao.BookMapper.Books
at org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:964)
at org.apache.ibatis.session.Configuration.getParameterMap(Configuration.java:694)
at org.apache.ibatis.builder.MapperBuilderAssistant.getStatementParameterMap(MapperBuilderAssistant.java:313)
... 39 more
Process finished with exit code -1
解决方案:
- 查看mybatisConfig.xml是否匹配正确
<configuration>
<typeAliases>
<package name="com.life.XXX"/>
typeAliases>
<mappers>
<mapper resource="com/life/Dao/XXXX.xml"/>
mappers>
configuration>
2.查看mapper.xml 是否配对正确
<mapper namespace="com.mybatis.Dao.XXXMapper">
mapper>
namespace: 是否配对成功
其中注意一下: parameterType与parameterMap:
parameterMap已经是过时了 不再使用, 不然出现上述错误:
org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map
- 查看Spring-Dao.xml文件 配置mybatis是否错误
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation" value="classpath:mybatis-config.xml"/>
<property name="mapperLocations" value="classpath:com/xx/Dao/*.xml"/>
bean>
注意一下: UserMapper.xml的配置只能在MybatisConfig.xml文件和Spring-Dao.xml文件中的一个 不然会出现错误:
警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [Spring-Dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.life.Dao.BookMapper.insertBook. please check com/life/Dao/BookMapper.xml and file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [Spring-Dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.life.Dao.BookMapper.insertBook. please check com/life/Dao/BookMapper.xml and file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1796)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595)
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.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:860)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:144)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:85)
at Mytest.test_1(Mytest.java:17)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.life.Dao.BookMapper.insertBook. please check com/life/Dao/BookMapper.xml and file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:595)
at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:475)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1855)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1792)
... 34 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]'. Cause: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.life.Dao.BookMapper.insertBook. please check com/life/Dao/BookMapper.xml and file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:122)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:94)
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:593)
... 37 more
Caused by: java.lang.IllegalArgumentException: Mapped Statements collection already contains value for com.life.Dao.BookMapper.insertBook. please check com/life/Dao/BookMapper.xml and file [D:\SSM\target\classes\com\life\Dao\BookMapper.xml]
at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:947)
at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:903)
at org.apache.ibatis.session.Configuration.addMappedStatement(Configuration.java:702)
at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:297)
at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:113)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:137)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:130)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
... 39 more
Process finished with exit code -1