Question

tomcat访问jsp页面出现异常：java.lang.ClassNotFoundException: org.apache.jsp.dr_jsp，是怎么出现的？

localhost.log中的日志：
SEVERE: Servlet.service() for servlet [jsp] in context with path [] threw exception [java.lang.ClassNotFoundException: org.apache.jsp.dr_jsp] with root cause
java.lang.ClassNotFoundException: org.apache.jsp.dr_jsp
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)
at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:147)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:172)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:403)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:347)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:91)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
有人知道怎么复现这个异常吗？

Answer 1

删掉work目录下的所有内容，重启，OK

追问

你好，这个问题是怎么出现的？能详细说下吗

Answer 2

java学习小组，希望可以一起学习进步，Java框架平台研发 378 437 335