账号和密码都没错，用其他软件可以正常连接，再帆软显示失败错误详情：com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied for user 'kedu_jinan2020'@'%' to database 'databasename'sun.reflect.GeneratedConstructorAccessor236.newInstance(null.-1)sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java.45)java.lang.reflect.Constructor.newInstance(Constructor.java.423)com.mysql.jdbc.Util.handleNewInstance(Util.java.403)com.mysql.jdbc.Util.getInstance(Util.java.386)com.mysql.jdbc.SQLError.createSQLException(SQLError.java.944)com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java.3933)com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java.3869)com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java.864)com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java.1707)com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java.1217)com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java.2189)com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java.2220)com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java.2015)com.mysql.jdbc.ConnectionImpl.com.mysql.jdbc.JDBC4Connection.sun.reflect.GeneratedConstructorAccessor233.newInstance(null.-1)sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java.45)java.lang.reflect.Constructor.newInstance(Constructor.java.423)com.mysql.jdbc.Util.handleNewInstance(Util.java.403)com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java.385)com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java.323)com.fr.third.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java.1461)com.fr.third.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java.1525)com.fr.third.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java.2165)
