配置的根目录index.jsp一直打开？？？？请问可能哪里出问题？

我把tomcat的根目录配置成我的web应用目录：
<Context path="" docBase="F:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps\ensms" debug="0" reloadble="true"/>，然后通过浏览器访问，一直打开index.jsp，访问日志如下：
127.0.0.1 - - [21/Aug/2013:12:48:00 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:00 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:00 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:00 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:00 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:00 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:01 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:02 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:02 +0800] "GET /index.jsp HTTP/1.1" 200 85
127.0.0.1 - - [21/Aug/2013:12:48:02 +0800] "GET /index.jsp HTTP/1.1" 200 85
但是当配成虚拟目录时候，又可以访问成功
<Context path="/myfolder" docBase="F:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps\ensms" debug="0" reloadble="true"/>。
这会是什么原因呢？？谢谢！
tomcat 虚拟根目录 index.jsp 一直打开

补充：Java ,  Web 开发