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: org.apache.jasper.JasperException: Unable to compile class for JSP org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:338)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

org.apache.jasper.JasperException: Unable to compile class for JSP
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:597)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


root cause 

java.io.FileNotFoundException: D:\Tomcat 6.0\work\Catalina\localhost\Expulsion-Search\org\apache\jsp\index_jsp.java (拒绝访问。)
	java.io.FileOutputStream.open(Native Method)
	java.io.FileOutputStream.(Unknown Source)
	java.io.FileOutputStream.(Unknown Source)
	org.apache.jasper.compiler.Compiler.setupContextWriter(Compiler.java:291)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:230)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:347)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:589)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.26 logs.

Apache Tomcat/6.0.26

访问tomcat6.0下发布的某jsp学籍程序运行不稳定的原因：主要是访问量过大而产生日志满了，导致访问不稳定，主要通过两种方法解决：一种是删除运行下的程序日志，另一种是对tomcat做相关日志的配置。