DEBUGcom.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Client does not support

Posted 2022-02-18 写Bug的渣渣高

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项目场景：

使用 Spring SpringMVC Mybatis 进行整合SSM的过程中，声明一个声明式事务的查询服务，发现无法使用。

@Service
public class EmpServiceImpl implements EmpService 

    @Autowired
    private EmpMapper empMapper;


    @Transactional
    @Override
    public List<Emp> selectAll() 
        return empMapper.selectAll();

    <dependencies>
        <!-- SpringMVC -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.3.15</version>
        </dependency>

        <!-- Spring 持久化层所需依赖 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>5.3.15</version>
        </dependency>

        <!-- 日志 -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.10</version>
        </dependency>

        <!-- ServletAPI -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
            <scope>provided</scope>
        </dependency>

        <!-- Spring5和Thymeleaf整合包 -->
        <dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring5</artifactId>
            <version>3.0.14.RELEASE</version>
        </dependency>

        <!-- Mybatis核心 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.7</version>
        </dependency>

        <!-- mysql驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.19</version>
        </dependency>

        <!-- 数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.9</version>
        </dependency>

        <!-- junit5 -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <version>5.8.2</version>
            <scope>test</scope>
        </dependency>

        <!-- Spring 的测试功能 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.3.15</version>
        </dependency>

        <!-- Mybatis 和 Spring 的整合包 -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.7</version>
        </dependency>
    </dependencies>

DEBUG日志

[13:18:32.310] [ERROR] [Druid-ConnectionPool-Create-992196964] [com.alibaba.druid.pool.DruidDataSource] [create connection error, url: jdbc:mysql://localhost:3306/mybatis_exercise?serverTimezone=Asia/Shanghai&amp, errorCode 1251, state 08004]
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client
	at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:403)
	at com.mysql.jdbc.Util.getInstance(Util.java:378)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:985)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3378)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3310)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:910)
	at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3810)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1272)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1992)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:720)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
	at sun.reflect.GeneratedConstructorAccessor62.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:403)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:293)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1529)
	at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2109)
[13:18:32.312] [ERROR] [Druid-ConnectionPool-Create-992196964] [com.alibaba.druid.pool.DruidDataSource] [create connection error, url: jdbc:mysql://localhost:3306/mybatis_exercise?serverTimezone=Asia/Shanghai&amp, errorCode 1251, state 08004]
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client
	at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:403)
	at com.mysql.jdbc.Util.getInstance(Util.java:378)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:985)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3378)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3310)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:910)
	at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3810)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1272)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1992)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:720)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
	at sun.reflect.GeneratedConstructorAccessor62.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:403)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:293)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1464)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1529)
	at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2109)
[13:18:32.313] [ERROR] [Druid-ConnectionPool-Create-992196964] [com.alibaba.druid.pool.DruidDataSource] [create connection error, url: jdbc:mysql://localhost:3306/mybatis_exercise?serverTimezone=Asia/Shanghai&amp, errorCode 1251, state 08004]
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client
	at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:403)
	at com.mysql.jdbc.Util.getInstance(Util.java:378)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:985)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3378)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3310)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:910)
	at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3810)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1272)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1992)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:720)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
	at sun.reflect.GeneratedConstructorAccessor62.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:403)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:293)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(

   
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