MySQLNonTransientConnectionException:客户端不支持服务器请求的身份验证协议；请考虑升级MySQL客户端
MySQLNonTransientConnectionException:客户端不支持服务器请求的身份验证协议；请考虑升级MySQL客户端
提问于 2018-05-24 16:55:00
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Client does not support authentication protocol requested by server; consider upgrading MySQL client
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3558)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3490)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:919)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3996)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1284)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2137)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:776)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:352)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:284)
at java.sql/java.sql.DriverManager.getConnection(Unknown Source)
at java.sql/java.sql.DriverManager.getConnection(Unknown Source)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:154)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:145)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:205)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:169)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180)
at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:43)即使在更新mysql密码后，我也会收到此错误。我在一些帖子中读到，mysql有一个新的缓存机制，所有客户端都需要运行以下代码，我已经这样做了，但仍然是相同的错误：
update user set authentication_string='test' where user='root';
flush privileges 回答 8
Stack Overflow用户
发布于 2018-09-30 07:31:06
步骤1:使用：SELECT version(); query检查当前Mysql的版本。
步骤2:在maven中检查Mysql jdbc驱动程序的版本或Mysql依赖项。
步骤3:升级Mysql的jar版本或maven依赖版本。
Stack Overflow用户
发布于 2019-02-10 02:20:47
可以使用以下步骤解决此问题：-
步骤1 :-在mysql中运行下面的查询并重新启动它(对于8.0以上的版本，这里的用户名是root )
ALTER USER 'root'@'localhost‘由’mysql_native_password‘标识为'yourpassword'；
步骤2:-在mysql中运行select version()；检查mysql的版本
the version of mysql in pom.xml should be same as the version of mysql installed (mine is 8.0.14)
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.14</version>步骤3：-如果mysql-connector jar文件不在maven存储库中，您可以下载8.0.14版本的jar并将其粘贴到存储库中。
$.m2\repository\mysql\mysql-connector-java\8.0.14
步骤4:-更新您的maven项目
步骤5:-在config.xml中检查driverClassName，它应该是"com.mysql.cj.jdbc.Driver“。
Stack Overflow用户
发布于 2018-08-31 23:27:36
我已经按照消息的建议做了。我在pom.xml的时候
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.18</version>
</dependency>并更改为latest version
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.12</version>
</dependency>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50505042
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