HTTP Status 500 -

---

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: org/aspectj/lang/Signature
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
	org.apache.jsp.DataWeb.test_jsp._jspService(org.apache.jsp.DataWeb.test_jsp:63)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

java.lang.NoClassDefFoundError: org/aspectj/lang/Signature
	java.lang.Class.forName0(Native Method)
	java.lang.Class.forName(Class.java:164)
	org.apache.jsp.DataWeb.test_jsp._jspService(org.apache.jsp.DataWeb.test_jsp:48)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.

test.jsp:

<%@page contentType="text/html;charset=gb2312"%>
<%
java.sql.Connection conn;
java.lang.String strConn;
try {
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
conn = java.sql.DriverManager.getConnection("jdbc:mysql://localhost/test1","root","");
%>
连接mysql数据库成功
<%
} catch (java.sql.SQLException e) {
out.println(e.toString());
}
%>


以上是我的错误及代码，谢谢帮忙！！！！！！！！！！！！帮我解决下

是不是没有装驱动、？