bitronix 连接 MySQL 出现MySQLSyntaxErrorException 的解决方法

bitronix 连接 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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