本文档详细记录了Springboot项目启动时遇到的'org.springframework.beans.factory.UnsatisfiedDependencyException'异常，该异常源于adminController中adminService字段的依赖注入问题。错误追踪显示，错误的根本原因是adminMapper的sqlSessionFactory配置不正确，具体到mybatis的CategoryMapper.xml文件解析失败，提示Mapper XML语法错误。排查和修复此类问题通常涉及检查XML映射文件的语法、依赖注入的正确性以及相关配置是否完整。
Springboot项目启动异常 org.springframework.beans.factory.UnsatisfiedDependencyException
错误代码
[ERROR] 2020-07-02 17:30:53 Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘adminController’: Unsatisfied dependency expressed through field ‘adminService’; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘adminServiceImpl’: Unsatisfied dependency expressed through field ‘adminMapper’; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘adminMapper’ defined in file [D:\EndItem\code\yingx\target\classes\com\baizhi\dao\AdminMapper.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 [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.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:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘file [D:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’. Cause: org.apache.ibatis.builder.BuilderException: Parsing error was found in mapping #{}. Check syntax #{property|(expression), var1=value1, var2=value2, …}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor
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AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda
AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)atorg.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)atorg.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)atorg.springframework.beans.factory.support.AbstractBeanFactory.lambdadoGetBeanKaTeX parse error: Undefined control sequence: \EndItem at position 1703: …ned in file [D:\̲E̲n̲d̲I̲t̲e̲m̲\code\yingx\tar…AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean
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0(AbstractBeanFactory.java:320) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor
0(AbstractBeanFactory.java:320)atorg.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)atorg.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)atorg.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)atorg.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171)atorg.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessorAutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
… 19 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘adminMapper’ defined in file [D:\EndItem\code\yingx\target\classes\com\baizhi\dao\AdminMapper.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 [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.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:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘file [D:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’. Cause: org.apache.ibatis.builder.BuilderException: Parsing error was found in mapping #{}. Check syntax #{property|(expression), var1=value1, var2=value2, …}
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1515)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1395)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean
0
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… 32 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘sqlSessionFactory’ defined in class path resource [tk/mybatis/mapper/autoconfigure/MapperAutoConfiguration.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:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘file [D:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’. Cause: org.apache.ibatis.builder.BuilderException: Parsing error was found in mapping #{}. Check syntax #{property|(expression), var1=value1, var2=value2, …}
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:607)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBeanKaTeX parse error: Undefined control sequence: \EndItem at position 1209: …urce: 'file [D:\̲E̲n̲d̲I̲t̲e̲m̲\code\yingx\tar…
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… 57 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘file [D:\EndItem\code\yingx\target\classes\com\baizhi\mapper\CategoryMapper.xml]’. Cause: org.apache.ibatis.builder.BuilderException: Parsing error was found in mapping #{}. Check syntax #{property|(expression), var1=value1, var2=value2, …}
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at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:94)
at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:520)
… 70 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Parsing error was found in mapping #{}. Check syntax #{property|(expression), var1=value1, var2=value2, …}
at org.apache.ibatis.builder.SqlSourceBuilder
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ParameterMappingTokenHandler.handleToken(SqlSourceBuilder.java:67) at org.apache.ibatis.parsing.GenericTokenParser.parse(GenericTokenParser.java:78) at org.apache.ibatis.builder.SqlSourceBuilder.parse(SqlSourceBuilder.java:45) at org.apache.ibatis.scripting.defaults.RawSqlSource.<init>(RawSqlSource.java:46) at org.apache.ibatis.scripting.defaults.RawSqlSource.<init>(RawSqlSource.java:40) at org.apache.ibatis.scripting.xmltags.XMLScriptBuilder.parseScriptNode(XMLScriptBuilder.java:72) at org.apache.ibatis.scripting.xmltags.XMLLanguageDriver.createSqlSource(XMLLanguageDriver.java:44) at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:94) 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) ... 72 common frames omitted Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 0 at java.lang.String.charAt(String.java:658) at org.apache.ibatis.builder.ParameterExpression.parse(ParameterExpression.java:44) at org.apache.ibatis.builder.ParameterExpression.<init>(ParameterExpression.java:39) at org.apache.ibatis.builder.SqlSourceBuilder
ParameterMappingTokenHandler.handleToken(SqlSourceBuilder.java:67)atorg.apache.ibatis.parsing.GenericTokenParser.parse(GenericTokenParser.java:78)atorg.apache.ibatis.builder.SqlSourceBuilder.parse(SqlSourceBuilder.java:45)atorg.apache.ibatis.scripting.defaults.RawSqlSource.<init>(RawSqlSource.java:46)atorg.apache.ibatis.scripting.defaults.RawSqlSource.<init>(RawSqlSource.java:40)atorg.apache.ibatis.scripting.xmltags.XMLScriptBuilder.parseScriptNode(XMLScriptBuilder.java:72)atorg.apache.ibatis.scripting.xmltags.XMLLanguageDriver.createSqlSource(XMLLanguageDriver.java:44)atorg.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:94)atorg.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:137)atorg.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:130)atorg.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)...72commonframesomittedCausedby:java.lang.StringIndexOutOfBoundsException:Stringindexoutofrange:0atjava.lang.String.charAt(String.java:658)atorg.apache.ibatis.builder.ParameterExpression.parse(ParameterExpression.java:44)atorg.apache.ibatis.builder.ParameterExpression.<init>(ParameterExpression.java:39)atorg.apache.ibatis.builder.SqlSourceBuilderParameterMappingTokenHandler.parseParameterMapping(SqlSourceBuilder.java:128)
… 84 common frames omitted
Process finished with exit code 1
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检查出来之后是Mybatis的配置mapper.xml文件出错
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