Setting-> Inspections-> Serialization issues-> Serializable class without ‘serialVersionUID’
selected, in your class: Alt+Enter will prompt you to automatically create the serialVersionUID.
IDEA
Tag Archives: intellij idea
Failed to create JVM. JVM Path: xxxxx
crack need to modify: bin/idea64. Exe. Vmoptions parameter, causing boot error:
this is because the environment variable may not have been set, but it was, and it was later found to be due to a bin/idea64.exe.vmoptions file format problem.
bin/idea64. Exe.vmoptions is in utf-8 by default, but changed to utf-8 BOM by using Windows notepad.
converts to utf-8 format. Opens with NodePad++, encoding -> Utf-8, then save
About the steps to create Maven’s (WEB) dependency using in idea
steps for creating maven dependencies in idea
- manually import JSP and Servlet and JSTL dependencies in the pom, so that the project has a web compilation environment
-
- JSTL support ‘
- Servlet compilation environment
- JSP compilation environment
0
1
manually imports JSPS and servlets and JSTL dependencies in the pom to give the project a web compilation environment
JSTL supports `
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
servlet compilation environment
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
JSP compilation environment
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
Idea couldn’t be found org.springframework.context .support
use maven spring project management idea, operation times can’t find the org. Springframework. Context. The support.
reason: jar package has not been imported, or idea cannot find this jar package, need to check the configuration of maven
solution:
1. Reimport maven pom file
2. Check that the version of the jar package is compatible with the currently used JDK version
3. 4. Delete the configuration of localrepository in the conf folder in the maven installation directory. Manually specify the address of the localrepository in idea
Error running ‘application’: command line is too long. Short command line for application
error when starting SpringBoot project
solution:
choose Edit Configurations
select JAR mainfest.
Error creating bean with name usercontroller appears when springboot starts
>
D:\Windows\Jdk14\jdk-14\bin\java.exe -Dvisualvm.id=460544745239900 -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:D:\Windows\IDEA2020\IntelliJ IDEA 201.6487.11\lib\idea_rt.jar=60120:D:\Windows\IDEA2020\IntelliJ IDEA 201.6487.11\bin" -Dfile.encoding=UTF-8 -classpath D:\IDEAStudy\SSM\springboot-demo01\target\classes;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-web\2.2.7.RELEASE\spring-boot-starter-web-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter\2.2.7.RELEASE\spring-boot-starter-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-logging\2.2.7.RELEASE\spring-boot-starter-logging-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;D:\Windows\mavenRepository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;D:\Windows\mavenRepository\org\apache\logging\log4j\log4j-to-slf4j\2.12.1\log4j-to-slf4j-2.12.1.jar;D:\Windows\mavenRepository\org\apache\logging\log4j\log4j-api\2.12.1\log4j-api-2.12.1.jar;D:\Windows\mavenRepository\org\slf4j\jul-to-slf4j\1.7.30\jul-to-slf4j-1.7.30.jar;D:\Windows\mavenRepository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;D:\Windows\mavenRepository\org\yaml\snakeyaml\1.25\snakeyaml-1.25.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-json\2.2.7.RELEASE\spring-boot-starter-json-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\com\fasterxml\jackson\core\jackson-databind\2.10.4\jackson-databind-2.10.4.jar;D:\Windows\mavenRepository\com\fasterxml\jackson\core\jackson-core\2.10.4\jackson-core-2.10.4.jar;D:\Windows\mavenRepository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.10.4\jackson-datatype-jdk8-2.10.4.jar;D:\Windows\mavenRepository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.10.4\jackson-datatype-jsr310-2.10.4.jar;D:\Windows\mavenRepository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.10.4\jackson-module-parameter-names-2.10.4.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-tomcat\2.2.7.RELEASE\spring-boot-starter-tomcat-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.34\tomcat-embed-websocket-9.0.34.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-validation\2.2.7.RELEASE\spring-boot-starter-validation-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\jakarta\validation\jakarta.validation-api\2.0.2\jakarta.validation-api-2.0.2.jar;D:\Windows\mavenRepository\org\hibernate\validator\hibernate-validator\6.0.19.Final\hibernate-validator-6.0.19.Final.jar;D:\Windows\mavenRepository\org\jboss\logging\jboss-logging\3.4.1.Final\jboss-logging-3.4.1.Final.jar;D:\Windows\mavenRepository\org\springframework\spring-web\5.2.6.RELEASE\spring-web-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-beans\5.2.6.RELEASE\spring-beans-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-webmvc\5.2.6.RELEASE\spring-webmvc-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-aop\5.2.6.RELEASE\spring-aop-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-context\5.2.6.RELEASE\spring-context-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-expression\5.2.6.RELEASE\spring-expression-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\com\alibaba\druid-spring-boot-starter\1.1.17\druid-spring-boot-starter-1.1.17.jar;D:\Windows\mavenRepository\com\alibaba\druid\1.1.17\druid-1.1.17.jar;D:\Windows\mavenRepository\org\slf4j\slf4j-api\1.7.30\slf4j-api-1.7.30.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-devtools\2.2.7.RELEASE\spring-boot-devtools-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot\2.2.7.RELEASE\spring-boot-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\apache\tomcat\embed\tomcat-embed-jasper\9.0.34\tomcat-embed-jasper-9.0.34.jar;D:\Windows\mavenRepository\org\apache\tomcat\embed\tomcat-embed-core\9.0.34\tomcat-embed-core-9.0.34.jar;D:\Windows\mavenRepository\org\apache\tomcat\tomcat-annotations-api\9.0.34\tomcat-annotations-api-9.0.34.jar;D:\Windows\mavenRepository\org\apache\tomcat\embed\tomcat-embed-el\9.0.34\tomcat-embed-el-9.0.34.jar;D:\Windows\mavenRepository\org\eclipse\jdt\ecj\3.18.0\ecj-3.18.0.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-autoconfigure\2.2.7.RELEASE\spring-boot-autoconfigure-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-configuration-processor\2.2.7.RELEASE\spring-boot-configuration-processor-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\mysql\mysql-connector-java\5.1.47\mysql-connector-java-5.1.47.jar;D:\Windows\mavenRepository\io\springfox\springfox-swagger-ui\2.9.2\springfox-swagger-ui-2.9.2.jar;D:\Windows\mavenRepository\io\springfox\springfox-spring-web\2.9.2\springfox-spring-web-2.9.2.jar;D:\Windows\mavenRepository\io\springfox\springfox-swagger2\2.9.2\springfox-swagger2-2.9.2.jar;D:\Windows\mavenRepository\io\swagger\swagger-annotations\1.5.20\swagger-annotations-1.5.20.jar;D:\Windows\mavenRepository\io\swagger\swagger-models\1.5.20\swagger-models-1.5.20.jar;D:\Windows\mavenRepository\com\fasterxml\jackson\core\jackson-annotations\2.10.4\jackson-annotations-2.10.4.jar;D:\Windows\mavenRepository\io\springfox\springfox-spi\2.9.2\springfox-spi-2.9.2.jar;D:\Windows\mavenRepository\io\springfox\springfox-core\2.9.2\springfox-core-2.9.2.jar;D:\Windows\mavenRepository\io\springfox\springfox-schema\2.9.2\springfox-schema-2.9.2.jar;D:\Windows\mavenRepository\io\springfox\springfox-swagger-common\2.9.2\springfox-swagger-common-2.9.2.jar;D:\Windows\mavenRepository\com\google\guava\guava\20.0\guava-20.0.jar;D:\Windows\mavenRepository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;D:\Windows\mavenRepository\org\springframework\plugin\spring-plugin-core\1.2.0.RELEASE\spring-plugin-core-1.2.0.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\plugin\spring-plugin-metadata\1.2.0.RELEASE\spring-plugin-metadata-1.2.0.RELEASE.jar;D:\Windows\mavenRepository\org\mapstruct\mapstruct\1.2.0.Final\mapstruct-1.2.0.Final.jar;D:\Windows\mavenRepository\com\baomidou\dynamic-datasource-spring-boot-starter\3.0.0\dynamic-datasource-spring-boot-starter-3.0.0.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-jdbc\2.2.7.RELEASE\spring-boot-starter-jdbc-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\com\zaxxer\HikariCP\3.4.3\HikariCP-3.4.3.jar;D:\Windows\mavenRepository\org\springframework\spring-jdbc\5.2.6.RELEASE\spring-jdbc-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-tx\5.2.6.RELEASE\spring-tx-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-aop\2.2.7.RELEASE\spring-boot-starter-aop-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\aspectj\aspectjweaver\1.9.5\aspectjweaver-1.9.5.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-starter-thymeleaf\2.2.7.RELEASE\spring-boot-starter-thymeleaf-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\thymeleaf\thymeleaf-spring5\3.0.11.RELEASE\thymeleaf-spring5-3.0.11.RELEASE.jar;D:\Windows\mavenRepository\org\thymeleaf\thymeleaf\3.0.11.RELEASE\thymeleaf-3.0.11.RELEASE.jar;D:\Windows\mavenRepository\org\attoparser\attoparser\2.0.5.RELEASE\attoparser-2.0.5.RELEASE.jar;D:\Windows\mavenRepository\org\unbescape\unbescape\1.1.6.RELEASE\unbescape-1.1.6.RELEASE.jar;D:\Windows\mavenRepository\org\thymeleaf\extras\thymeleaf-extras-java8time\3.0.4.RELEASE\thymeleaf-extras-java8time-3.0.4.RELEASE.jar;D:\Windows\mavenRepository\com\baomidou\mybatis-plus-boot-starter\3.3.0\mybatis-plus-boot-starter-3.3.0.jar;D:\Windows\mavenRepository\com\baomidou\mybatis-plus\3.3.0\mybatis-plus-3.3.0.jar;D:\Windows\mavenRepository\com\baomidou\mybatis-plus-extension\3.3.0\mybatis-plus-extension-3.3.0.jar;D:\Windows\mavenRepository\com\baomidou\mybatis-plus-core\3.3.0\mybatis-plus-core-3.3.0.jar;D:\Windows\mavenRepository\com\baomidou\mybatis-plus-annotation\3.3.0\mybatis-plus-annotation-3.3.0.jar;D:\Windows\mavenRepository\com\github\jsqlparser\jsqlparser\3.1\jsqlparser-3.1.jar;D:\Windows\mavenRepository\org\mybatis\spring\boot\mybatis-spring-boot-starter\1.3.2\mybatis-spring-boot-starter-1.3.2.jar;D:\Windows\mavenRepository\org\mybatis\spring\boot\mybatis-spring-boot-autoconfigure\1.3.2\mybatis-spring-boot-autoconfigure-1.3.2.jar;D:\Windows\mavenRepository\org\mybatis\mybatis\3.4.6\mybatis-3.4.6.jar;D:\Windows\mavenRepository\org\mybatis\mybatis-spring\1.3.2\mybatis-spring-1.3.2.jar;D:\Windows\mavenRepository\org\projectlombok\lombok\1.18.12\lombok-1.18.12.jar;D:\Windows\mavenRepository\org\hamcrest\hamcrest\2.1\hamcrest-2.1.jar;D:\Windows\mavenRepository\net\bytebuddy\byte-buddy\1.10.10\byte-buddy-1.10.10.jar;D:\Windows\mavenRepository\org\springframework\spring-core\5.2.6.RELEASE\spring-core-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-jcl\5.2.6.RELEASE\spring-jcl-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\junit\junit\4.12\junit-4.12.jar;D:\Windows\mavenRepository\org\hamcrest\hamcrest-core\2.1\hamcrest-core-2.1.jar;D:\Windows\mavenRepository\org\springframework\boot\spring-boot-test\2.2.7.RELEASE\spring-boot-test-2.2.7.RELEASE.jar;D:\Windows\mavenRepository\org\springframework\spring-test\5.2.6.RELEASE\spring-test-5.2.6.RELEASE.jar;D:\Windows\mavenRepository\org\testng\testng\7.0.0\testng-7.0.0.jar;D:\Windows\mavenRepository\com\beust\jcommander\1.72\jcommander-1.72.jar com.example.springboot.demo01.SpringbootDemo01Application
OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.7.RELEASE)
2020-05-26 16:53:26.484 INFO 2004 --- [ restartedMain] c.e.s.d.SpringbootDemo01Application : Starting SpringbootDemo01Application on DESKTOP-VDMFLMG with PID 2004 (D:\IDEAStudy\SSM\springboot-demo01\target\classes started by 27858 in D:\IDEAStudy\SSM\springboot-demo01)
2020-05-26 16:53:26.487 INFO 2004 --- [ restartedMain] c.e.s.d.SpringbootDemo01Application : No active profile set, falling back to default profiles: default
2020-05-26 16:53:26.577 INFO 2004 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-05-26 16:53:26.577 INFO 2004 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-05-26 16:53:28.469 INFO 2004 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'spring.datasource.dynamic-com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceProperties' of type [com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-05-26 16:53:28.472 INFO 2004 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceAutoConfiguration' of type [com.baomidou.dynamic.datasource.spring.boot.autoconfigure.DynamicDataSourceAutoConfiguration$$EnhancerBySpringCGLIB$$924e5bde] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-05-26 16:53:28.484 INFO 2004 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'dsProcessor' of type [com.baomidou.dynamic.datasource.processor.DsHeaderProcessor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-05-26 16:53:28.491 INFO 2004 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'dynamicDatasourceAnnotationAdvisor' of type [com.baomidou.dynamic.datasource.aop.DynamicDataSourceAnnotationAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-05-26 16:53:28.815 INFO 2004 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-05-26 16:53:28.824 INFO 2004 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-05-26 16:53:28.825 INFO 2004 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.34]
2020-05-26 16:53:29.168 INFO 2004 --- [ restartedMain] org.apache.jasper.servlet.TldScanner : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2020-05-26 16:53:29.175 INFO 2004 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-05-26 16:53:29.176 INFO 2004 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2599 ms
2020-05-26 16:53:29.304 INFO 2004 --- [ restartedMain] c.a.d.s.b.a.DruidDataSourceAutoConfigure : Init DruidDataSource
Tue May 26 16:53:29 CST 2020 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
2020-05-26 16:53:29.629 INFO 2004 --- [ restartedMain] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} inited
2020-05-26 16:53:29.650 WARN 2004 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'personService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personMapper' defined in file [D:\IDEAStudy\SSM\springboot-demo01\target\classes\com\example\springboot\demo01\Dao\PersonMapper.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 java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
2020-05-26 16:53:29.650 INFO 2004 --- [ restartedMain] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} closing ...
2020-05-26 16:53:29.657 INFO 2004 --- [ restartedMain] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} closed
2020-05-26 16:53:29.659 INFO 2004 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2020-05-26 16:53:29.671 INFO 2004 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-05-26 16:53:29.679 ERROR 2004 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'personService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personMapper' defined in file [D:\IDEAStudy\SSM\springboot-demo01\target\classes\com\example\springboot\demo01\Dao\PersonMapper.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 java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:895) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.7.RELEASE.jar:2.2.7.RELEASE]
at com.example.springboot.demo01.SpringbootDemo01Application.main(SpringbootDemo01Application.java:21) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.2.7.RELEASE.jar:2.2.7.RELEASE]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personMapper' defined in file [D:\IDEAStudy\SSM\springboot-demo01\target\classes\com\example\springboot\demo01\Dao\PersonMapper.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 java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1306) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
... 24 common frames omitted
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personMapper' defined in file [D:\IDEAStudy\SSM\springboot-demo01\target\classes\com\example\springboot\demo01\Dao\PersonMapper.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 java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1526) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1406) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1306) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
... 37 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 java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:656) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:636) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1306) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1226) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1511) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
... 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 java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:651) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
... 61 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/mybatis/logging/LoggerFactory
at com.baomidou.mybatisplus.extension.spring.MybatisSqlSessionFactoryBean.<clinit>(MybatisSqlSessionFactoryBean.java:94) ~[mybatis-plus-extension-3.3.0.jar:3.3.0]
at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration.sqlSessionFactory(MybatisPlusAutoConfiguration.java:159) ~[mybatis-plus-boot-starter-3.3.0.jar:3.3.0]
at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$668857a7.CGLIB$sqlSessionFactory$2(<generated>) ~[mybatis-plus-boot-starter-3.3.0.jar:3.3.0]
at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$668857a7$$FastClassBySpringCGLIB$$ce277b1c.invoke(<generated>) ~[mybatis-plus-boot-starter-3.3.0.jar:3.3.0]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) ~[spring-context-5.2.6.RELEASE.jar:5.2.6.RELEASE]
at com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration$$EnhancerBySpringCGLIB$$668857a7.sqlSessionFactory(<generated>) ~[mybatis-plus-boot-starter-3.3.0.jar:3.3.0]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.2.6.RELEASE.jar:5.2.6.RELEASE]
... 62 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.mybatis.logging.LoggerFactory
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[na:na]
... 74 common frames omitted
Process finished with exit code 0
problem 1:
Error creating bean with name 'personServiceImpl': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'personMapper' defined in file
Mapper cannot be injected in the personServiceImpl class,
Solutions:
change after, Mapper will not to be injected with
but the project is up and running or wrong
problem 2 :
last error description: class
cannot be found
java.lang.ClassNotFoundException: org.mybatis.logging.LoggerFactory
because I introduced Mybatis puls plug-in in this project, the project could not find the class
solution:
Mybatis depends on annotation can be
<!--mybatis-plus 依赖-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.3.0</version>
</dependency>
<!--<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
</dependency>-->
Common errors and modification methods of findbug
- findbugs:EI_EXPOSE_REP
problem description: Getters and setters of the may expose internal representation by returning reference type
eclipse automatically generates reference type (Object, array, Date, etc.) will get or expose the inner implementation of the code by referring to the mutable Object. There are many solutions provided that the returned or assigned Object is not the original reference Object.
# Date
public Date getHappenTime() {
if(happenTime != null){
return (Date) happenTime.clone();
}
return null;
}
# 数组
public String[] getStringArrary() {
if(stringArray != null){
return Arrays.copyOf(stringArray, stringArray.length);
}
return null;
}
# hashTable
table = new HashTable(hashTable);
- findbugs: EI_EXPOSE_REP2
description: May expose internal representation by storing the an externally mutable object into a setter method returns a reference type
eclipse to automatically generate a reference type (object, array, the Date, etc.) or through the getter and setter methods get the variable object reference operation and internal implementation code, open the solution a lot, As long as the returned or assigned object is not the original reference object.
solution:
# Date类型为例：
public void setHappenTime(Date happenTime) {
if(happenTime != null){
this.happenTime = (Date) happenTime.clone();
}else{
this.happenTime = null;
}
}
# 数组
public String[] setStringArrary(String[] arr) {
if(arr != null){
this.stringArrays = Arrays.copyOf(stringArray, stringArray.length);
} else {
this.stringArrays =null;
}
}
3.CN_IDIOM_NO_SUPER_CALL
clone method does not call super.clone()
a non-final class defined the clone() method without calling the super.clone() method. For example: B extends from A and if the clone method in B calls spuer.clone() and the clone in A does not call spuer.clone(), that results in an inaccurate result type. Spuer. clone() is called from A’s clone method.
- findbugs:DC_DOUBLECHECK
multi-threading – Possible double check of field
multi-threading double check of field
, solution, add volatile keyword decoration to the field.
- [NP_NULL_PARAM_DEREF]
description: Null passed for nonnull parameter passed to nonnull parameter
solution: add nonnull judgment