JDBC联结，见鬼了！前辈帮我！

jdbc_bb

用的是MySQL5.0+JDK1.5+Tomcat 5.5+IIS，把mysql-connector-java-3.1.12-bin.jar拷贝到JDK的安装目录下lib子目录中（Tomcat里能Copy的地方都放了一份），并在环境变量中设置CLASSPATH=%CLASSPATH%;%JAVA_HOME%\lib\mysql-connector-java-3.1.12-bin.jar，重新启动后JSP代码还是无法访问MySql,浏览器提示Java编译错误：sqlConn cannot be resolved

JSP代码如下：
<%@ page contentType="text/html;charset=gb2312" %>
<%
java.sql.Connection conn;
java.lang.String strConn;
Class.forName("org.gjt.mm.mysql.Driver".newInstance();
sqlConn= java.sql.DriverManager.getConnection("jdbc:mysql://localhost/test","root","abc123";
%>

错误提示如下：
org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 2 in the jsp file: /colors/jdbc.jsp
Generated servlet error:
sqlConn cannot be resolved


        org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
        org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:32
        org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:409)
        org.apache.jasper.compiler.Compiler.compile(Compiler.java:28
        org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
        org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
        org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

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Class.forName("com.mysql.jdbc.Driver");