web部署发生的错误

Question

这是部署web应用后，开始访问页面的时候发生的错误，也重启tomcat了，不知道为甚？

HTTP Status 500 -

---

type Exception report

message

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

exception

java.lang.ClassNotFoundException: org.apache.jsp.logon_jsp
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:131)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:597)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:137)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:314)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
cn.com.jdlh.common.SecurityFilter.doFilter(SecurityFilter.java:79)
cn.com.jdlh.common.EncodingFilter.doFilter(EncodingFilter.java:31)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.26 logs.

---

Apache Tomcat/5.5.26

Answer 1

启动tomcat 访问.jsp会生成一个servlet，有的时候如果你不手动清除一下缓存，新定义的或者重新修改过的jsp是不会重新被编译成可执行的servlet的