org.apache.jasper.JasperException 哪位高手告诉我这是怎么了？我是跟着jsp+tomcat+mysql的教程做的。

显示全部楼层 · 2011-4-22 21:51:20

exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /first.jsp at line 5
2:
3:
4:
5: <%Class.forName("org.gjt.mm.mysql.Driver").newInstance();
6: String url ="jdbc:mysql://localhost/softforum?user=soft&password=soft1234&useUnicode=true&characterEncoding=8859_1" ;
7: //first为你的数据库名
8: Connection conn= DriverManager.getConnection(url);
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:515)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:408)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
javax.servlet.ServletException: java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:855)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:784)
org.apache.jsp.first_jsp._jspService(first_jsp.java:95)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:128)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
java.lang.ClassLoader.loadClassInternal(Unknown Source)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Unknown Source)
org.apache.jsp.first_jsp._jspService(first_jsp.java:58)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.10 logs.

千问 · 2011-4-22 21:51:20

Tomcat使用编译器编译JSP页面的时候，org.gjt.mm.mysql.Drive类没找到。你看看Tomcat的lib下面有没有jdbc驱动包。应该是少了包的缘故。

千问 · 2011-4-22 21:51:20

Driver类没找到。看看那包里面Driver类的包路径是否和org.gjt.mm.mysql.Driver一样

千问 · 2011-4-22 21:51:20

可能是没导包

千问 · 2011-4-22 21:51:20

JDBC包没有导吧

千问 · 2011-4-22 21:51:20

java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver 驱动程序包找不到