Java連接Mysql數據庫異常：Public Key Retrieval is not allowed

本文主要介紹通過connector 8.0.11連接Mysql數據庫，出現Public Key Retrieval is not allowed(Exception in thread “main”java.sql.SQLNonTransientConnectionException: Public Key Retrieval is not allowed)的異常信息的解決方法。

 

堆棧跟蹤：

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)

連接代碼：

public class ConnectionManager { public static final String serverTimeZone = "UTC"; public static final String serverName = "localhost"; public static final String databaseName ="mysqldb"; 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(); } }

解決異常問題

解決此異常問題需要將allowPublicKeyRetrieval=true和useSSL=false。

1）通過代碼設置

dataSource.setAllowPublicKeyRetrieval(true);
dataSource.setUseSSL(false);

2）jdbc的url設置

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

3）Spring boot配置

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