运行逆向工程出现java.math.BigInteger cannot be cast to java.lang.Long

java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086)
    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.(ConnectionImpl.java:834)
    at com.mysql.jdbc.JDBC4Connection.(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 org.mybatis.generator.internal.db.ConnectionFactory.getConnection(ConnectionFactory.java:68)
    at org.mybatis.generator.config.Context.getConnection(Context.java:526)
    at org.mybatis.generator.config.Context.introspectTables(Context.java:436)
    at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:222)
    at org.mybatis.generator.api.MyBatisGenerator.generate(MyBatisGenerator.java:133)
    at GeneratorSqlmap.generator(GeneratorSqlmap.java:23)
    at GeneratorSqlmap.main(GeneratorSqlmap.java:29)
Caused by: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
    at com.mysql.jdbc.ConnectionImpl.buildCollationMapping(ConnectionImpl.java:1019)
    ... 19 more

问题：我的mysql版本是8.0以上的，我用的是mysql-connector-java-5.1.28-bin.jar，版本可能与所用的mybatis版本不对应。

解决方法：把mysql-connector-java-5.1.28-bin换成mysql-connector-java-5.1.10-bin就可以解决问题了