bitronix 连接 MySQL 出现MySQLSyntaxErrorException 的解决方法

bitronix 连接 mysql/' target='_blank'>mysql 出现MySQLSyntaxErrorException 的解决方法

1. 开发环境

hibernate 版本：5.1.0.Final
Bitronix btm 版本：2.1.3

2 异常堆栈信息

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied for user ''@'localhost' to database 'hibernate'  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)  at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)  at com.mysql.jdbc.Util.getInstance(Util.java:360)  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:978)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)  at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)  at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)  at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)  at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2265)  at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064)  at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)  at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)  at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)  at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)  at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)  at bitronix.tm.resource.jdbc.lrc.LrcXADataSource.getXAConnection(LrcXADataSource.java:104)  ... 33 more

3 分析问题

很明显是因为没有访问 MySQL 数据库的权限，导致访问被拒绝。

打开代码一看，果然是这样，代码里没有提供访问数据库的账号和密码嘛

ds.setClassName("bitronix.tm.resource.jdbc.lrc.LrcXADataSource");          ds.getDriverProperties().put(              "url",              connectionURL != null ? connectionURL                  : "jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"          );          Properties dp=ds.getDriverProperties();          dp.put("driverClassName", "com.mysql.jdbc.Driver");          ds.setDriverProperties(dp);

4 解决问题

赶紧加上，问题解决 O(∩_∩)O~

...dp.put("user","root");dp.put("password","");...ds.setDriverProperties(dp);

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