我试图在Windows 7上安装tomcat-7.0.27。然后单击bin / startup.bat，出现一个窗口，并在最后一行看到“ INFO：761
ms内的服务器启动”。然后，我尝试检查“ http” /// localhost：8080”，但以下信息显示：

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: java.lang.IllegalStateException: No output folder
    org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:585)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:391)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
root cause

java.lang.IllegalStateException: No output folder
    org.apache.jasper.JspCompilationContext.createOutputDir(JspCompilationContext.java:738)
    org.apache.jasper.JspCompilationContext.getOutputDir(JspCompilationContext.java:196)
    org.apache.jasper.JspCompilationContext.getClassFileName(JspCompilationContext.java:581)
    org.apache.jasper.compiler.Compiler.isOutDated(Compiler.java:461)
    org.apache.jasper.compiler.Compiler.isOutDated(Compiler.java:425)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:639)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.27 logs.

Apache Tomcat/7.0.27

然后，我在窗口的每个开始处都找到了此信息：

java.util.logging.ErrorManager: 4
java.io.FileNotFoundException: C:\Program Files\apache-tomcat-7.0.27\logs\catalina.2012-05-14.log (Access is denied)

谁能告诉我这里出了什么问题？