服务启动报错
本帖最后由 dengfengpo 于 2018-10-30 14:24 编辑启动服务的时候报错。。数据库是我之前的，我重装系统后，启动服务一直报这个错误；数据库账号密码都是对的。用Navicat可以正常登陆数据库。
版本号：3.7.7
数据库：mysql-8.0.13-winx64
JDK版本：jdk1.8.0_191
问题出现流程：以前我是32位操作系统。。已经在本机搭好环境运行过很久的项目了；最近把操作系统重装升级到64位；重新安装eclipse、mysql等软件后。按照原流程引入项目，配置好后启动服务开始报错。
JobFactory set to: org.jeecgframework.web.system.sms.util.JQuartzJobFactory@6d518d29
create connection SQLException, url: jdbc:mysql://localhost:3306/jeecg?useUnicode=true&characterEncoding=UTF-8, errorCode 0, state S1009
java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920)
at com.mysql.jdbc.ConnectionImpl.buildCollationMapping(ConnectionImpl.java:1074)
at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3600)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2541)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347)
at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:149)
at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218)
at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:143)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1515)
at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1578)
at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2466)
Caused by: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
at com.mysql.jdbc.ConnectionImpl.buildCollationMapping(ConnectionImpl.java:1019)
已自己解决。。升级mysql驱动包版本即可 OK 666
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