重生始源祖宇宙至尊:关于mysql连接的问题

大家好,我在弄个BBS,安装了mysql 并建立了一个使用密码登陆的帐户
但是我使用mysql连接工具连接这个帐户的时候总是报错：
[mysqlcctmp_1] ERROR 1251: Client does not support authentication protocol requested by server; consider upgrading MySQL client
当然访问我的bbs也是同样的报错：
500 Servlet Exception
java.sql.SQLException: ex.getMessage()
at caisha.Qsql.executeQuery(Qsql.java:39)
at _bbs._userlogin__jsp._jspService(/bbs/userlogin.jsp:15)
at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
at com.caucho.jsp.Page.subservice(Page.java:497)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:246)
at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:164)
at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
at java.lang.Thread.run(Thread.java:534)

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Resin 2.1.8 (built Thu Mar 6 11:50:23 PST 2003)
请问高手们会是那里出问题了呢 我的mysql连接驱动是：mysql-connector-java-3.1.5-gamma-bin.jar