Author Archives: Robins

[Solved] Springboot Error: Error creating bean with name ‘xxxController‘

Problem description

Today, we are integrating mybatis with springboot, and an error is reported at runtime:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\IDEA Project\demo\target\classes\com\example\demo\mapper\UserMapper.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 [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[spring-context-5.3.16.jar:5.3.16]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.16.jar:5.3.16]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.6.4.jar:2.6.4]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:740) [spring-boot-2.6.4.jar:2.6.4]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:415) [spring-boot-2.6.4.jar:2.6.4]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-2.6.4.jar:2.6.4]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1312) [spring-boot-2.6.4.jar:2.6.4]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1301) [spring-boot-2.6.4.jar:2.6.4]
	at com.example.demo.DemoApplication.main(DemoApplication.java:18) [classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\IDEA Project\demo\target\classes\com\example\demo\mapper\UserMapper.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 [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:659) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:639) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656) ~[spring-beans-5.3.16.jar:5.3.16]
	... 20 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\IDEA Project\demo\target\classes\com\example\demo\mapper\UserMapper.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 [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1534) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1417) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:656) ~[spring-beans-5.3.16.jar:5.3.16]
	... 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 [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:638) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1519) ~[spring-beans-5.3.16.jar:5.3.16]
	... 45 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 [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.3.16.jar:5.3.16]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ~[spring-beans-5.3.16.jar:5.3.16]
	... 58 common frames omitted
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.buildSqlSessionFactory(MybatisSqlSessionFactoryBean.java:595) ~[mybatis-plus-extension-3.4.0.jar:3.4.0]
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.afterPropertiesSet(MybatisSqlSessionFactoryBean.java:431) ~[mybatis-plus-extension-3.4.0.jar:3.4.0]
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.getObject(MybatisSqlSessionFactoryBean.java:628) ~[mybatis-plus-extension-3.4.0.jar:3.4.0]
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration.sqlSessionFactory(MybatisPlusAutoConfiguration.java:214) ~[mybatis-plus-boot-starter-3.3.1.jar:3.3.1]
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$1a37b21a.CGLIB$sqlSessionFactory$2(<generated>) ~[mybatis-plus-boot-starter-3.3.1.jar:3.3.1]
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$1a37b21a$$FastClassBySpringCGLIB$$a0eb9858.invoke(<generated>) ~[mybatis-plus-boot-starter-3.3.1.jar:3.3.1]
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.3.16.jar:5.3.16]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.3.16.jar:5.3.16]
	at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$1a37b21a.sqlSessionFactory(<generated>) ~[mybatis-plus-boot-starter-3.3.1.jar:3.3.1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_322]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_322]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_322]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_322]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.3.16.jar:5.3.16]
	... 59 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:123) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:95) ~[mybatis-3.5.5.jar:3.5.5]
	at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.buildSqlSessionFactory(MybatisSqlSessionFactoryBean.java:593) ~[mybatis-plus-extension-3.4.0.jar:3.4.0]
	... 72 common frames omitted
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:118) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:76) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:138) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:131) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:121) ~[mybatis-3.5.5.jar:3.5.5]
	... 74 common frames omitted
Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:120) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:149) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:116) ~[mybatis-3.5.5.jar:3.5.5]
	... 78 common frames omitted
Caused by: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version
	at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:200) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.io.Resources.classForName(Resources.java:261) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:116) ~[mybatis-3.5.5.jar:3.5.5]
	... 80 common frames omitted

Cause analysis:

When I first saw this error report, I guessed that the bean was not successfully created. I also searched various answers on the Internet. Some said that @ service might not be added to the service layer. I looked at it for no reason, so I began to read the error information

Look directly at the error reported in the first line, because the first line is likely to be the main reason for the error:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userMapper' defined in file [E:\IDEA Project\demo\target\classes\com\example\demo\mapper\UserMapper.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 [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version

I’ll take this long paragraph wrong and look at it in pieces
at first, I thought it was the problem of userController, then carefully check whether it was not, and then look back:

nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl'

I went to see userServiceImpl again and didn’t find any problems, so I was wondering if I understood the error in this paragraph, so I searched the meaning of nest. It turned out that there was nesting besides nesting! That is to say, the error reporting in this paragraph is actually an exception nested with another exception ! In other words, it is the innermost error that causes the error of each layer above, thus throwing an exception! So I went straight to the back part:

nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'file [E:\IDEA Project\demo\target\classes\mapper\VersionMapper.xml]'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.libv.entity.Version'.  Cause: java.lang.ClassNotFoundException: Cannot find class: com.libv.entity.Version

Found to be VersionMapper.xml has a problem because of Error resolving class, That is to say, there is a problem with one class. Look at the last: Cannot find class: com.libv.entity.Version.
I went to see XML again:

<mapper namespace="com.libv.mapper.VersionMapper">
    <insert id="release" parameterType="com.libv.entity.Version">
        insert into version(id,version,download_url,release_time)
        values (#{id},#{version},#{downloadUrl},NOW())
    </insert>
</mapper>

Now I understand, because I don’t have com.libv.entity this bag! That is, the wrong path of my Version class leads to errors in XML, resulting in layer-by-layer exceptions.

Solution:

Change the directory path of the corresponding class of parameterType in XML

<mapper namespace="com.example.demo.mapper.VersionMapper">
    <insert id="release" parameterType="com.example.demo.Entity.Version">
        insert into version(id,version,download_url,release_time)
        values (#{id},#{version},#{downloadUrl},NOW())
    </insert>
</mapper>

Run again, success!

[Solved] Navicat Connect MySQL error: Authentication plugin ‘caching_sha2_password‘ cannot be loaded

The reason for this problem is: the different encryption rules before and after MySQL8 cause the problem, now let’s deal with it.

Windows system operation steps, Linux can refer to

Run CMD with administrator command

mysql -u root -p

If the command fails, the environment variable is not configured. After configuring the environment variable, execute it, or go to the bin folder of MySQL installation directory to execute the above statement.

Modify encryption rules

ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER;

update user password

 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';

refresh permission

 FLUSH PRIVILEGES;

reset password

ALTER USER 'root'@'localhost' IDENTIFIED BY 'NEW_PASSWORD';

After the modification is completed, go to Navicat to test the connection, and you can succeed.

Wildfly (JBoss) startup error: ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation (“add”) failed

Error content:

15:07:50,724 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([("deployment" => "MESwell.ear")]) 
- failure description: "WFLYCTL0212: Duplicate resource [(\"deployment\" => \"MESwell.ear\")]"

15:07:50,728 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.

Error reporting scenario:

This error occurs when I start it normally for the first time, and then turn it off. When I start it for the second time, it will fail to start. Many answers were searched on the Internet, but they failed. Later, I found this answer:

[wfcore-495] wfly won’t startup due to “wflyctl0212: duplicate resource [(\” deployment \ “= & gt; \” XXX. War \ “)] – red hat issue tracker

Through this answer, I know that it must be related to the nonstandard start-up operation of my second time. The nonstandard start-up led to the existence of the cache started last time. Then I searched wildfly how to clean up the cache.

Here is the Solution:

1. Find the package you put under \wildfly-10.1.0.Final\standalone\deployments\, check its startup status, and delete the files generated after the startup failure. (It seems to be fine without cleaning up)

2. Delete all files under \wildfly-10.1.0.Final\standalone\data

3、Go to \wildfly-10.1.0.Final\standalone\configuration and find your standalone.xml

Search for deployment, find a string of tags like the following generated, delete!

4. After executing the appeal operation, check whether the above three steps are not clear and clean

5. Restart your wildfly (JBoss)

[Solved] Torch Build Module Error: NotImplementedError

It’s probably such an error reporting method. I’ve been using torch for so many years. I first encountered this error NotImplementedError
I’m not using a nightly version

Traceback (most recent call last):

  File "xxxxx\x.py", line 268, in <module>
    print(x(y).shape)

  File "xxxxx\lib\site-packages\torch\nn\modules\module.py", line 889, in _call_impl
    result = self.forward(*input, **kwargs)

  File "xxxxx\x.py", line 259, in forward
    x = self.features(x)

  File "xxxxx\lib\site-packages\torch\nn\modules\module.py", line 889, in _call_impl
    result = self.forward(*input, **kwargs)

  File "xxxxx\lib\site-packages\torch\nn\modules\container.py", line 119, in forward
    input = module(input)

  File "xxxxx\lib\site-packages\torch\nn\modules\module.py", line 889, in _call_impl
    result = self.forward(*input, **kwargs)

  File "xxxxx\lib\site-packages\torch\nn\modules\module.py", line 201, in _forward_unimplemented
    raise NotImplementedError

NotImplementedError

Call self.forward in _call_impl

result = self.forward(*input, **kwargs)

If you inherit nn.Module, and if you don’t implement self.forward, it will

raise NotImplementedError

It turns out that when I use this function, I really don’t have the forward method:

class Hswish(nn.Module):

    def __init__(self, inplace=True):
        super(Hswish, self).__init__()
        self.inplace = inplace

    def __swish(self, x, beta, inplace=True):
        # But this swish is not used by H-swish
        # The reason it's called H-swish is to make the sigmoid hard
        # approximated by Relu6(x+3)/6
        # Reduced computational effort for embedded deployment
        return x * F.sigmoid(beta * x, inplace)

    @staticmethod
    def Hsigmoid(x, inplace=True):
        return F.relu6(x + 3, inplace=inplace)/6

    def foward(self, x):
        return x * self.Hsigmoid(x, self.inplace)

forward Write as foward …

Python Kmeans Error: ConvergenceWarning: Number of distinct clusters (99) found smaller than n_clusters (100).

The following errors occur when using the kmeans method for clustering. My default setting is 100 categories, and there are more than 100 data. The following errors are reported in the clustering process:

ConvergenceWarning: Number of distinct clusters (99) found smaller than n_clusters (100). Possibly due to duplicate points in X.

First locate the error code:

kmeans = KMeans(n_clusters=k, random_state=2018)
kmeans.fit(XData)
 pre_y = kmeans.predict(XData)

It is probably one of these three items. Finally, it is found that the prompt appears in the fit() function. Use the try method to grab the error, locate the breakpoint for debugging, and grab the ConvergenceWarning error:

    # Build the clustering model object
    kmeans = KMeans(n_clusters=k, random_state=2018)
    # Train the clustering model
    try:
        kmeans.fit(XData) # If the data has duplicates, the data will be smaller than the K value when fitting, so the K value needs to be updated
    except ConvergenceWarning:
        print("Catch ConvergenceWarning,k={}\n".format(k))
    except:
        print("k={}\n".format(k))

    # Predictive Clustering Model
    pre_y = kmeans.predict(XData)

After checking, the outgoing line is caused by repeated XData data, so the K value is determined in the early stage, and the problem can be solved by repeating it here
previous K value determination Code:

XData = np.array(X)
if(XData.shape[0]<=k and XData.shape[0]!=0):
        print("XData size:",XData.shape[0])
        k=XData.shape[0]//2
        print("K:",k)
        if(k<=0):
            return result

The changed code is de duplicated by using set

XData = np.array(list(set(X)))#2022.3.22 zph comes with a de-duplication effect
if(XData.shape[0]<=k and XData.shape[0]!=0):
        print("XData size:",XData.shape[0])
        k=XData.shape[0]//2
        print("K:",k)
        if(k<=0):
            return result

The above is hereby recorded for reference by those who have the same problems.

WPF: How to implement Text Stroke

1. Preface

WPF’s TextBlock provides most of the commonly used text modification methods, which are basically sufficient in daily use. If richer representations are required, WPF also provides other tools that are more complex to use to achieve these requirements. For example, the text stroke described in this article, there are several ways to render it in WPF. This article will briefly introduce the method to achieve text stroke.

2. Convert text to Geometry

The key to achieve text stroke is to use FormattedText to convert the text to Geometry, and then use other techniques to add a border to the Geometry and then draw it.

In WPF, Geometry and its derived classes (EllipseGeometry, LineGeometry, PathGeometry, RectangleGeometry, etc.) are used to describe collection graphics of 2D shapes. The FormattedText BuildGeometryfunction can convert the text into a GeometryGroup (representing a composite geometry composed of other Geometry objects), the code is as follows:

private Geometry CreateTextGeometry()
{
    // Create the formatted text based on the properties set.
    FormattedText formattedText = new FormattedText(
        Text,
        CultureInfo.CurrentCulture,
        FlowDirection.LeftToRight,
        new Typeface(
            FontFamily,
            FontStyle,
            FontWeight,
            FontStretch),
        FontSize,
        System.Windows.Media.Brushes.Black,// This brush does not matter since we use the geometry of the text.
        100);
    // Build the geometry object that represents the text.

    return formattedText.BuildGeometry(new Point(0, 0));
}

After getting the Geometry, there are two ways to draw it.

3. Using DrawingContext

DrawingContext in WPF is a basic drawing object used to draw various graphics. One of the easiest ways to use it is to overload the OnRender method of UIElement, and draw the UI of UIElement in this method:

// Override the OnRender call to add a Background and Border to the OffSetPanel
protected override void OnRender(DrawingContext dc)
{
    SolidColorBrush mySolidColorBrush  = new SolidColorBrush();
    mySolidColorBrush.Color = Colors.LimeGreen;
    Pen myPen = new Pen(Brushes.Blue, 10);
    Rect myRect = new Rect(0, 0, 500, 500);
    dc.DrawRectangle(mySolidColorBrush, myPen, myRect);
}

The sample code above draws a 500 * 500 square using the DrawingContext. In addition to squares, DrawingContext also provides functions such as DrawEllipse, DrawImage, DrawLine, which are used to draw circles, images, lines, etc. You can also use DrawText function to draw text. However, DrawGeometry is a better choice than using DrawText directly, because it can draw the border of the text. In the above code, we have converted the text to a Geometry, and then directly call DrawGeometry and add a border:

protected override void OnRender(DrawingContext drawingContext)
{
    base.OnRender(drawingContext);
    var geometry = CreateTextGeometry();
    // Draw the outline based on the properties that are set.
    drawingContext.DrawGeometry(Foreground, new Pen(Stroke, StrokeThickness), geometry);
}

With Stroke, the StrokeThickness control can control the color and thickness of the text border.

4. Custom Shape

The method described above is from Microsoft’s sample document , but since we have obtained the geometry of the text, isn’t it better to make a custom Shape directly, and Shape can easily play more tricks and more animations. The code for making hollow text with a custom Shape is roughly as follows (some custom dependency properties for text are omitted):

public class TextShape : Shape
{
    private double _height;

    private double _width;

    private Geometry _textGeometry;

    [Localizability(LocalizationCategory.Text)]
    public string Text
    {
        get { return (string)GetValue(TextProperty); }
        set { SetValue(TextProperty, value); }
    }

    protected sealed override Geometry DefiningGeometry
    {
        get
        {
            return _textGeometry ?? Geometry.Empty;
        }
    }

    protected override Size MeasureOverride(Size availableSize)
    {
        this.RealizeGeometry();
        return new Size(Math.Min(availableSize.Width, _width), Math.Min(availableSize.Height, _height));
    }

    private void RealizeGeometry()
    {
        var formattedText = new FormattedText(
                                   Text,
                                   CultureInfo.CurrentCulture,
                                   FlowDirection.LeftToRight,
                                   new Typeface(FontFamily, FontStyle, FontWeight, FontStretch), FontSize, Brushes.Black, 100);

        _height = formattedText.Height;
        _width = formattedText.Width;
        _textGeometry = formattedText.BuildGeometry(new Point());
    }
}

After getting a Shape converted from text, in addition to implementing text strokes, you can also play a lot of animations, such as the following:

5. Finally

This article describes how to implement text strokes. In addition to text strokes, there are many ways to convert text into Shape introduced in the article, and the next article will simply try some of them.

JAVA: How to Convert PDF from Color to Grayscale

Configure the program environment

IntelliJ IDEA
Spire.PDF for Java 5.3.1
PDF document

About how to import jar files:

1. Download from the Maven repository and configure Pom.xml as follows:

<repositories> 
    <repository> 
        <id>com.e-iceblue</id> 
            <url>https: // repo.e-iceblue.cn/repository/maven-public/</url> 
        </repository> 
    </repositories > 
<dependencies> 
    <dependency> 
        <groupId> e-iceblue </groupId> 
        <artifactId>spire.pdf</artifactId> 
        <version>5.3.1</version> 
    </dependency> 
</dependencies>

2. Manually add the jar

Download the jar package locally, then unzip it, and find Spire.Pdf.jar in the lib folder. Then open the following interface in IDEA, and add the jar file in the local path to the Java program.

Convert color PDF to grayscale

This conversion requires only the following two steps:

Use the PdfGrayConverter class to load PDF files.
Call the PdfGrayConverter.toGrayPdf() method to convert the PDF to grayscale.

Java

import com.spire.pdf.conversion.* ; 

public  class ToGrayPDF {
     public  static  void main(String[] args) {
         // Create a PdfGrayConverter instance and load the PDF document 
        PdfGrayConverter converter = new PdfGrayConverter("Booklet.pdf" ); 

        / / Convert color PDF to grayscale 
        converter.toGrayPdf("ToGray.pdf" ); 
        converter.dispose(); 
    } 
}

Conversion result:

Translated from https://www.cnblogs.com/Yesi/p/16038524.html

How to Upload Docker Image to docker hub

background

Many images pulled down from docker hub can be customized to suit their own images by modifying configuration files and other operations. You can use your own images in the future. Therefore, you need to upload them to docker hub, and you can manage and maintain your own docker images like code in the future.

1. Register a docker hub account

2. Create a warehouse on docker hub

Created successfully as shown below:

3. The docker hub account is authenticated locally

docker local login

docker login

4. Commit the container into an image

docker tag <existing-image> <hub-user>/<repo-name>[:<tag>]

docker commit 277e80820516 jerrymouseli/wvp_lirj:0322

The tag here is not specified is latest.

sha256 is the check code of the image file.

5. docker push image to docker hub repository

docker push<hub-user>/<repo-name>:<tag>

docker push jerrymouseli/wvp_lirj:0322

6. Verify

6.1 Command Verification

docker inspect jerrymouseli/wvp_lirj:0322

6.2 Online warehouse verification

Translated from this article: https://www.cnblogs.com/JerryMouseLi/p/16040807.html

[Solved] vue run serve Error: ValidationError: Progress Plugin Invalid Options

Today, I encountered the following problems when running Vue run serve

ValidationError: Progress Plugin Invalid Options

        options should NOT have additional properties
        options should NOT have additional properties
        options should NOT have additional properties
        options should pass "instanceof" keyword validation
        options should match exactly one schema in oneOf

So I thought yesterday was fine. Why not today? There should be something wrong with my operation today.

I installed a loader before running the project, so I created a new vue2.x project to comparise What is the difference between the package now and before.

It turned out that vue-cli was upgraded to version 5.0. It turned out that I ran the command NPM audit fix, which will update the loader, but there will be many incompatibilities after the update

2 packages are looking for funding
  run `npm fund` for details

34 vulnerabilities (22 moderate, 11 high, 1 critical)

To address issues that do not require attention, run:
  npm audit fix

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.

So I changed the package to the cleanest package inside vue2.x and the project ran successfully

[Solved] ERROR in ./src/main.ts Module not found: Error: Can‘t resolve ‘xxx‘

ERROR in ./src/main.ts Module not found: Error: Can’t resolve ‘xxx’
Could not find .ts module
You need to configure in webpack.config.js:

resolve: {  //The file extension needs to be added ts
   extensions: ['.ts', '.js'],
 },

Exposure after definition

Introduction and application

[Solved] adb Error: error: no devices/emulators found error: cannot connect to daemon

Scenario: Because the version using Jenkins file address phone can not download apk package, so can only be installed through adb to test the package. The phone model installed is Android: oopa57 Android system version 6.0.1.

The first thing is to use win + r to punch the Windows system command window, enter adb

Successful installation is shown in the figure above.

Confirm that the ADB installation is successful and enter ADB devices

The phone model is successfully identified as shown in the figure above.

Then enter

For example: adb install E:\***-***-2.0.0.1.apk

At this time, there will be an error prompt: the device cannot be found and cannot be installed

1: Check whether the developer mode of the mobile phone is turned on. Different mobile phones are turned on in different ways. Just Google

2: After opening, enter the loading command again

USB debugging is not turned on. As shown in step 1, the USB debugging at the bottom of the figure. Enter again after start

Note: during installation, the mobile phone will pop up to ask whether debugging is allowed, and click OK.

Then confirm that the installation is completed.

Note: Another case is that the data line is in poor contact with the USB interface. It is available when entering a command, but the next command fails. Pay attention to troubleshooting.

[Solved] IDEA Start Project Error: Error running ‘xxxxxx‘: Command line is too long. Shorten command line for …..

Error in idea startup item: error running ‘XXXXXX’: command line is too long Shorten command line for xxxxxx or also for Spring Boot default configuration?

Error reason: this error may be reported when the newly pulled code is started after the idea is opened

Solution: just find the following line in workspace.xml file of the .idea folder:

< component name="PropertiesComponent"> ······</component>

Add a line in the middle

< property name="dynamic.classpath" value="true" />

The problem can be solved

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