针对您遇到的“could not obtain connection to query metadata”错误,这通常是由于无法成功连接到数据库以查询其元数据所导致的。下面是根据您提供的提示,逐步分析并解决问题的建议: 1. 检查数据库服务是否正在运行 首先,确保数据库服务已经启动并在运行中。对于不同的数据库系统(如MySQL, PostgreSQL, Oracle等),检...
简介:Could not obtain connection to query metadata : Public Key Retrieval is not allowed 您应该将客户端选项添加到 MySQL 连接器中, allowPublicKeyRetrieval=true 以允许客户端自动从服务器请求公钥。 AllowPublicKeyRetrieval=True 允许恶意代理执行 MITM 攻击以获取纯文本密码,因此默认情况下它是false!必须显式...
Could not obtain connection to query metadata : An attempt by a client to checkout a Connection has timed out.] hibernate c3p0配置: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"...
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INFO: HHH000046: Connection properties: {user=root, password=***, autocommit=true, release_mode=auto} 2015-6-15 10:09:24 org.hibernate.engine.jdbc.internal.JdbcServicesImpl configure WARN: HHH000342: Could not obtain connection to query metadata : No suitable driver found for jdbc:mysql://...
WARN [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator] (ServerService Thread Pool -- 63) HHH000342: Could not obtain connection to query metadata : Unable to resolve name [org.hibernate.dialect.MariaDB53Dialect] as strategy [org.hibernate.dialect.Dialect] 14:45:16,816 ERROR [org...
Could not obtain connection to query metadata问题补充:匿名 2013-05-23 12:21:38 无法取得连接查询的元数据 匿名 2013-05-23 12:23:18 无法获取连接查询元数据 匿名 2013-05-23 12:24:58 不能获得与询问变数据的连接 匿名 2013-05-23 12:26:38 无法获取连接查询的元数据 匿名 2013-05...
Could not obtain connection to query metadata : Public Key Retrieval is not allowed 您应该将客户端选项添加到 MySQL 连接器中, allowPublicKeyRetrieval=true 1. 以允许客户端自动从服务器请求公钥。 AllowPublicKeyRetrieval=True 1. 允许恶意代理执行 MITM 攻击以获取纯文本密码,因此默认情况下它是false!必须...
2021-02-22 00:57:22.711 WARN 19220 --- [on(3)-127.0.0.1] o.h.e.j.e.i.JdbcEnvironmentInitiator : HHH000342: Could not obtain connection to query metadata : Failed to get driver instance for jdbcUrl=jdbc:mysql://localhost:3306/asa?serverTimezone=EST5EDT This does not appear to occur...
用hibernate连接数据库出现错误 2010-3-16 17:23:39, 093 [main] WARN [org.hibernate.cfg.SettingsFactory] - Could not obtain connection metadata java.sql.SQLException: 不支持的特性 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134 ) ...