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 ) at oracle.jdbc.dbacc…

使用hibernate通路sybase当遇到异常. Could not obtain connection metadata : ASE is now using a multi-byte character set, and the TEXT character counts have not been re-calculated using this character set for table 'spt_jtext'. Use DBCC FIX_TEXT on this tabl…

四种数据库JDBC驱动,还列出了连接的Class驱动名和Url Pattern,DB2包括Type 2.Type 3和Type 4三种模式.注意驱动包名称的大小写. Oralce连接驱动包名和URL PATTERN为:oracle.jdbc.driver.OracleDriver,jdbc:oracle:thin:@<ServerIP>:<Port>:<DatabaseName>,默认端口号为1521. MySql连接驱动包名和URL PATTERN为:com.mysq…

今天想使用jdk8+tomcat7来个写程序,但是一运行始终提示连接不到数据库 提示:Could not obtain connection metadata org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Communications link failure ide15里面还提示:java.net.ConnectException: connect: Addres…

1.Java Web(Extjs)项目报错一 usage: java org.apache.catalina.startup.Catalina [ -config {pathname} ] [ -nonaming ] { -help | start | stop } 2014-3-26 0:10:05 org.apache.catalina.core.AprLifecycleListener init 信息: Loaded APR based Apache Tomcat Native libra…

1.错误描述 WARN:2015-05-01 16:45:37[main] - Exception encountered during context initialization - cancelling refresh attempt org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'baseDaoImpl': Injection of resource depen…

1.错误描述 2014-7-12 21:06:05 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource getPoolManager 信息: Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000,…

13.2.1. About JPA The Java Persistence API (JPA) is the standard for using persistence in Java projects. Java EE 6 applications use the Java Persistence 2.0 specification, documented here: http://www.jcp.org/en/jsr/detail?id=317.Hibernate EntityManag…

一.起因与原因分析过程 前端小伙伴儿告诉我,说服务器崩了. 请求数据接口,接口有响应,但报的json提示指向:数据库异常错误. 遂登陆云主机查看日志,核心记录显示如下: 2018-11-09 22:15:53.824 ERROR 26088 --- [ main] com.zaxxer.hikari.pool.HikariPool : HikariPool-1 - Exception during pool initialization. com.mysql.jdbc.exceptions.jd…

问题原因 由于使用的Mysql数据库驱动版本太高,存在数据库和系统时区差异,所以出问题. 问题解决 Spring Boot配置文件中在url: jdbc:mysql://127.0.0.1:3306/dbbookol?useUnicode=true&characterEncoding=utf-8&添加&serverTimezone=GMT%2B8 bug重现 java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼…