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How to solve the problem that no log output ends directly after the springboot project is started?

Shulou Source: shulou.com Published: 2022-06-02 06:06:55 09月25日 Update

This article mainly introduces how to solve the problem of the direct end of no log output after the start of the springboot project, which has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Summary of prospects

Before this, there was no problem with the function under the service_ Edu sub-module.

The creation of the service_ OS submodule failed many times, affecting the pom.xml of the previously normal service_edu module

Link: IDEA creates a Maven project that always shows problems that are being loaded

There is no need to find out the whole context, to see if your mistake is consistent with the following effect

The error is as shown in the following picture

Solution

Delete the target directory and clean up the maven subproject again using mvn clean

The following is also due to the problem that the application name will be changed first.

No encounter can be ignored.

Initialize spring bean and sqlsession

The premise is:

There is no new sub-module service_oss for this module function, and there are no functional errors, but the following error occurs at startup

Org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'eduTeacherController': Unsatisfied dependency expressed through field' eduTeacherService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'eduTeacherServiceImpl': Unsatisfied dependency expressed through field' baseMapper' Nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'eduTeacherMapper' defined in file [F:\ Silicon Valley\ online Education Project\ backend Code\ demo\ guli_parent\ service\ service_edu\ target\ classes\ com\ atguigu\ eduservice\ mapper\ EduTeacherMapper.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 com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: Error: GlobalConfigUtils setMetaData Fail! Cause:com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: Error: Get proxy targetObject exception! Cause:org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method' dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class

At org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:639) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:116) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties (AutowiredAnnotationBeanPostProcessor.java:397) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1429) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:594) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:517) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:323) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:222) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:321) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:202) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:879) ~ [spring-beans-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:878) ~ [spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:550) ~ [spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]

At org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh (ServletWebServerApplicationContext.java:141) ~ [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

At org.springframework.boot.SpringApplication.refresh (SpringApplication.java:747) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

At org.springframework.boot.SpringApplication.refreshContext (SpringApplication.java:397) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

At org.springframework.boot.SpringApplication.run (SpringApplication.java:315) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

At org.springframework.boot.SpringApplication.run (SpringApplication.java:1226) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

At org.springframework.boot.SpringApplication.run (SpringApplication.java:1215) [spring-boot-2.2.1.RELEASE.jar:2.2.1.RELEASE]

At com.atguigu.eduservice.EduApplication.main (EduApplication.java:12) [classes/:na]

At sun.reflect.NativeMethodAccessorImpl.invoke0 (NativeMethod) ~ [na:1.8.0_191]

At sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) ~ [na:1.8.0_191]

At sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) ~ [na:1.8.0_191]

At java.lang.reflect.Method.invoke (Method.java:498) ~ [na:1.8.0_191]

At org.springframework.boot.devtools.restart.RestartLauncher.run (RestartLauncher.java:49) [spring-boot-devtools-2.2.1.RELEASE.jar:2.2.1.RELEASE]

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'eduTeacherServiceImpl': Unsatisfied dependency expressed through field' baseMapper'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'eduTeacherMapper' defined in file [F:\ Silicon Valley\ online Education Project\ backend Code\ demo\ guli_parent\ service\ service_edu\ target\ classes\ com\ atguigu\ eduservice\ mapper\ EduTeacherMapper.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 com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: Error: GlobalConfigUtils setMetaData Fail! Cause:com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: Error: Get proxy targetObject exception! Cause:org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method' dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class