求助！！JSP错误．．．

[Java技术栈]

运行JSP出现下面的错误．．．怎么弄啊要？


HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

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

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /ShowArticleTree.jsp at line 46

43: %>
44:
45: <%
46: Class.forName("com.mysql.jdbc.Driver");
47: String url = "jdbc:mysql://localhost/bbs?user=root&password=root";
48: Connection conn = DriverManager.getConnection(url);
49: Statement stmt = conn.createStatement();


Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause

javax.servlet.ServletException: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:852)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.ShowArticleTree_jsp._jspService(ShowArticleTree_jsp.java:138)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:128)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:169)
org.apache.jsp.ShowArticleTree_jsp._jspService(ShowArticleTree_jsp.java:99)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.


--------------------------------------------------------------------------------

Apache Tomcat/6.0.18

[himily198338]

你引驱动包了吗？还有，需要指定端口号吧，like this :jdbc:mysql://localhost:3308/email_db

[hjzg258]

导入jar包就可以了

[Java技术栈]

是不是要导入JSTL包啊　为什么还要导入这个包呢　有没有高手告诉我　顺便发那个JSTL包我．谢谢
[e-mail]

[初级Log工程师]

47: String url = "jdbc:mysql://localhost/bbs?user=root&password=root"这个的URL中要加上端口号

[grysoft]

加载驱动的问题，应该是你没引入驱动包

[grysoft]

端口号也么写。。。

[wwwriyueming]

Dreamwear 与ASP.NET的连接:如何把Dreamwear做的网页放到ASP.NET里做后台编程.谢谢

[mdboer]

就是因为没有引用Mysql得驱动包 其实我认为端口号是可以没有得、

[jiangmeiwei]

你的端口号有问题的吧？你的数据库连接不是这样连接的。