连接Java-MySql：不允许公钥检索

我尝试使用连接器8.0.11与Java协调MySql数据库。 一切似乎都没问题，但我有这个例外：

线程“main”中的exceptionjava.sql.SQLNonTransientConnectionException： 不允许公钥检索

这是我第一次使用MySql而且我找不到任何解决方案。 谢谢你的帮助！

堆栈跟踪：

Exception in thread "main" java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:108) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:862) at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:444) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) at com.mysql.cj.jdbc.MysqlDataSource.getConnection(MysqlDataSource.java:438) at com.mysql.cj.jdbc.MysqlDataSource.getConnection(MysqlDataSource.java:146) at com.mysql.cj.jdbc.MysqlDataSource.getConnection(MysqlDataSource.java:119) at ConnectionManager.getConnection(ConnectionManager.java:28) at Main.main(Main.java:8) 

Connector Manager：

 public class ConnectionManager { public static final String serverTimeZone = "UTC"; public static final String serverName = "localhost"; public static final String databaseName ="biblioteka"; public static final int portNumber = 3306; public static final String user = "anyroot"; public static final String password = "anyroot"; public static Connection getConnection() throws SQLException { MysqlDataSource dataSource = new MysqlDataSource(); dataSource.setUseSSL( false ); dataSource.setServerTimezone( serverTimeZone ); dataSource.setServerName( serverName ); dataSource.setDatabaseName( databaseName ); dataSource.setPortNumber( portNumber ); dataSource.setUser( user ); dataSource.setPassword( password ); return dataSource.getConnection(); } } 

Answer 1

您应该将客户机选项添加到mysql-connector allowPublicKeyRetrieval=true

https://mysql-net.github.io/MySqlConnector/connection-options/

也可以帮助添加useSSL=false

Answer 2

使用jdbc url作为：

 jdbc:mysql://localhost:3306/Database_dbName?allowPublicKeyRetrieval=true&useSSL=false; 

PortNo: 3306在您的配置中可能有所不同

Answer 3

我在spring boot框架上使用以下配置解决了这个问题

 spring.datasource.url=jdbc:mysql://localhost:3306/db-name?useUnicode=true&characterEncoding=UTF-8&allowPublicKeyRetrieval=true&useSSL=false spring.datasource.username=root spring.datasource.password=root