SpringBoot所有单元测试出现错误以及测试过程中显示链接错误解决方案-Toy模板网

这篇具有很好参考价值的文章主要介绍了SpringBoot所有单元测试出现错误以及测试过程中显示链接错误解决方案。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

问题1：所有单元测试出现错误

问题描述

感觉没改什么东西，但是全部test全部标红，并且原始项目也运行不起来了出现这样的报错

 

2023-03-27 20:34:14.952 ERROR 22208 --- [  restartedMain] o.s.boot.SpringApplication             : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
### The error may exist in file [E:\DUT-JAVAEE\Mybatis-demo\target\classes\mybatis\UserMapper.xml]
### The error may involve com.example.mybatisdemo.Mapper.UserMapper.updateUserName
### The error occurred while executing an update
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:405) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920) ~[spring-context-5.3.26.jar:5.3.26]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.26.jar:5.3.26]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.10.jar:2.7.10]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) [spring-boot-2.7.10.jar:2.7.10]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) [spring-boot-2.7.10.jar:2.7.10]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.7.10.jar:2.7.10]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.7.10.jar:2.7.10]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.7.10.jar:2.7.10]
    at com.example.mybatisdemo.MybatisDemoApplication.main(MybatisDemoApplication.java:10) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.7.10.jar:2.7.10]
Caused by: org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
### The error may exist in file [E:\DUT-JAVAEE\Mybatis-demo\target\classes\mybatis\UserMapper.xml]
### The error may involve com.example.mybatisdemo.Mapper.UserMapper.updateUserName
### The error occurred while executing an update
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:97) ~[mybatis-spring-2.1.0.jar:2.1.0]
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:439) ~[mybatis-spring-2.1.0.jar:2.1.0]
    at com.sun.proxy.$Proxy62.insert(Unknown Source) ~[na:na]
    at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:272) ~[mybatis-spring-2.1.0.jar:2.1.0]
    at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) ~[mybatis-3.5.11.jar:3.5.11]
    at com.sun.proxy.$Proxy63.updateUserName(Unknown Source) ~[na:na]
    at com.example.mybatisdemo.Service.UserService.updateUserName(UserService.java:25) ~[classes/:na]
    at com.example.mybatisdemo.Controller.UserController.updateUserName(UserController.java:34) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:725) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.26.jar:5.3.26]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.26.jar:5.3.26]
    ... 22 common frames omitted
Caused by: org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
### The error may exist in file [E:\DUT-JAVAEE\Mybatis-demo\target\classes\mybatis\UserMapper.xml]
### The error may involve com.example.mybatisdemo.Mapper.UserMapper.updateUserName
### The error occurred while executing an update
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
    at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:196) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:181) ~[mybatis-3.5.11.jar:3.5.11]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:425) ~[mybatis-spring-2.1.0.jar:2.1.0]
    ... 37 common frames omitted
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:83) ~[spring-jdbc-5.3.26.jar:5.3.26]
    at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:80) ~[mybatis-spring-2.1.0.jar:2.1.0]
    at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:67) ~[mybatis-spring-2.1.0.jar:2.1.0]
    at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:337) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:86) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.5.11.jar:3.5.11]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:194) ~[mybatis-3.5.11.jar:3.5.11]
    ... 43 common frames omitted
Caused by: java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:824) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:237) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na]
    at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:159) ~[spring-jdbc-5.3.26.jar:5.3.26]
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:117) ~[spring-jdbc-5.3.26.jar:5.3.26]
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) ~[spring-jdbc-5.3.26.jar:5.3.26]
    ... 51 common frames omitted
Caused by: com.mysql.cj.exceptions.UnableToConnectException: Public Key Retrieval is not allowed
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_201]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_201]
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_201]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_201]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.protocol.a.authentication.CachingSha2PasswordPlugin.nextAuthenticationStep(CachingSha2PasswordPlugin.java:130) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.protocol.a.authentication.CachingSha2PasswordPlugin.nextAuthenticationStep(CachingSha2PasswordPlugin.java:49) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:447) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:212) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1429) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.NativeSession.connect(NativeSession.java:133) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:944) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:814) ~[mysql-connector-j-8.0.32.jar:8.0.32]
    ... 64 common frames omitted

我的解决方案

在第二行报错信息中提到了userController，发现不小心给方法添加上了@AutoWired注解，出现了注解使用错误的问题才报的错

问题2：测试过程中显示链接错误解决方案

报错信息

2023-03-27 20:41:26.657 ERROR 27012 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
### The error may exist in file [E:\DUT-JAVAEE\Mybatis-demo\target\classes\mybatis\UserMapper.xml]
### The error may involve com.example.mybatisdemo.Mapper.UserMapper.updateUserName
### The error occurred while executing an update
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:405) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:920) ~[spring-context-5.3.26.jar:5.3.26]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[spring-context-5.3.26.jar:5.3.26]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.10.jar:2.7.10]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) [spring-boot-2.7.10.jar:2.7.10]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) [spring-boot-2.7.10.jar:2.7.10]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.7.10.jar:2.7.10]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.7.10.jar:2.7.10]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.7.10.jar:2.7.10]
	at com.example.mybatisdemo.MybatisDemoApplication.main(MybatisDemoApplication.java:10) [classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.7.10.jar:2.7.10]
Caused by: org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
### The error may exist in file [E:\DUT-JAVAEE\Mybatis-demo\target\classes\mybatis\UserMapper.xml]
### The error may involve com.example.mybatisdemo.Mapper.UserMapper.updateUserName
### The error occurred while executing an update
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
	at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:97) ~[mybatis-spring-2.1.0.jar:2.1.0]
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:439) ~[mybatis-spring-2.1.0.jar:2.1.0]
	at com.sun.proxy.$Proxy62.insert(Unknown Source) ~[na:na]
	at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:272) ~[mybatis-spring-2.1.0.jar:2.1.0]
	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86) ~[mybatis-3.5.11.jar:3.5.11]
	at com.sun.proxy.$Proxy63.updateUserName(Unknown Source) ~[na:na]
	at com.example.mybatisdemo.Service.UserService.updateUserName(UserService.java:25) ~[classes/:na]
	at com.example.mybatisdemo.Controller.UserController.updateUserName(UserController.java:34) ~[classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:725) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119) ~[spring-beans-5.3.26.jar:5.3.26]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.3.26.jar:5.3.26]
	... 22 common frames omitted
Caused by: org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
### The error may exist in file [E:\DUT-JAVAEE\Mybatis-demo\target\classes\mybatis\UserMapper.xml]
### The error may involve com.example.mybatisdemo.Mapper.UserMapper.updateUserName
### The error occurred while executing an update
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
	at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:196) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:181) ~[mybatis-3.5.11.jar:3.5.11]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:425) ~[mybatis-spring-2.1.0.jar:2.1.0]
	... 37 common frames omitted
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:83) ~[spring-jdbc-5.3.26.jar:5.3.26]
	at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:80) ~[mybatis-spring-2.1.0.jar:2.1.0]
	at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:67) ~[mybatis-spring-2.1.0.jar:2.1.0]
	at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:337) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:86) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.5.11.jar:3.5.11]
	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:194) ~[mybatis-3.5.11.jar:3.5.11]
	... 43 common frames omitted
Caused by: java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed
	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:110) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:824) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:237) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:364) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-4.0.3.jar:na]
	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-4.0.3.jar:na]
	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:159) ~[spring-jdbc-5.3.26.jar:5.3.26]
	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:117) ~[spring-jdbc-5.3.26.jar:5.3.26]
	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) ~[spring-jdbc-5.3.26.jar:5.3.26]
	... 51 common frames omitted
Caused by: com.mysql.cj.exceptions.UnableToConnectException: Public Key Retrieval is not allowed
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_201]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_201]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_201]
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_201]
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.protocol.a.authentication.CachingSha2PasswordPlugin.nextAuthenticationStep(CachingSha2PasswordPlugin.java:130) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.protocol.a.authentication.CachingSha2PasswordPlugin.nextAuthenticationStep(CachingSha2PasswordPlugin.java:49) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.protocol.a.NativeAuthenticationProvider.proceedHandshakeWithPluggableAuthentication(NativeAuthenticationProvider.java:447) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.protocol.a.NativeAuthenticationProvider.connect(NativeAuthenticationProvider.java:212) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.protocol.a.NativeProtocol.connect(NativeProtocol.java:1429) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.NativeSession.connect(NativeSession.java:133) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:944) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:814) ~[mysql-connector-j-8.0.32.jar:8.0.32]
	... 64 common frames omitted


Process finished with exit code 0

最后发现是持久层忘记去加@Data注解

写这篇博客是为了记录ssm项目入门时出现的bug（遭不住了）文章来源地址https://www.toymoban.com/news/detail-774971.html

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