JSP中的useBean错误

调试程序时，
<jsp:useBean id="mdb" class="ckstudio.db.mysqlconn2.class" scope="page"/>

出现The value for the useBean class attribute ckstudio.db.mysqlconn2.class is invalid错误。

请问要问题出在哪？？

我tomcat6.0+JDK1.5版本，java当中没有错误，是 public类，并且有默认构建函数。

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ckstudio.db.mysqlconn2
别加class

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其次创建mysqlconn2类的时候最好要大写。-》Mysqlconn2

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ckstudio.db.mysqlconn2.class

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去掉也一样的错误

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org.apache.jasper.JasperException: /shop/top.jsp(52,0) The value for the useBean class attribute ckstudio.db.MySqlConn2.class is invalid.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1272)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1178)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.com