巨怪的问题,用root可以连,用oa用户抛出异常

ioveme

连接mysql4.1，用户root，oa都有远程访问数据库oa的权限
用root用户连接成功，用oa用户就抛出异常
There was an error in creating the connection pool for jdbc:mysql://192.168.0.226:3306/oa
java.sql.SQLException: Communication failure during handshake. Is there a server running on 192.168.0.226:3306?
        at org.gjt.mm.mysql.MysqlIO.init(Unknown Source)
        at org.gjt.mm.mysql.Connection.connectionInit(Unknown Source)
        at org.gjt.mm.mysql.jdbc2.Connection.connectionInit(Unknown Source)
        at org.gjt.mm.mysql.Driver.connect(Unknown Source)
        at java.sql.DriverManager.getConnection(DriverManager.java:512)
        at java.sql.DriverManager.getConnection(DriverManager.java:171)
        at com.oa.util.ConnectionPool.makeConnection(ConnectionPool.java:533)
        at com.oa.util.ConnectionPool.<init>;(ConnectionPool.java:189)
        at com.oa.util.ConnectionPool.<init>;(ConnectionPool.java:224)
        at com.oa.util.InitializeConnectionPool.contextInitialized(InitializeConnectionPool.java:75)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:318
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:3404)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123)
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:63
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123)
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:343)
        at org.apache.catalina.core.StandardService.start(StandardService.java:38
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:506)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:781)
        at org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
        at org.apache.catalina.startup.Catalina.process(Catalina.java:179)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)