request.getRequestURI() 与 request.getRequestURL()

request.getRequestURI() 返回值类似：/xuejava/requestdemo.jsp

request.getRequestURL() 返回值类似：http://localhost:8080/xuejava/requestdemo.jsp
附：
request.getContextPath() = /hboys
request.getLocalAddr() = 127.0.0.1
request.getPathInfo() = null
request.getPathTranslated() = null
request.getRemoteAddr() = 127.0.0.1
request.getRequestURI() = /hboys/
request.getScheme() = http
request.getServerName() = 127.0.0.1
request.getServletPath() = /index.jsp
request.getClass() = class org.apache.catalina.connector.RequestFacade
request.getHeaderNames() =
request.getLocale() = zh_CN
request.getLocales() =
request.getParameterMap() = {}
request.getRequestURL() = http://127.0.0.1:8081/hboys/
request.getUserPrincipal() = null
request.getParameterNames() =
request.getRealPath("newsPub") = D:\workspace\hboys\WebRoot\newsPub
假定你的web application 名称为news,你在浏览器中输入请求路径：
http://localhost:8080/news/main/list.jsp
则执行下面向行代码后打印出如下结果：
1、 System.out.println(request.getContextPath());
打印结果：/news
   2、System.out.println(request.getServletPath());
打印结果：/main/list.jsp
3、 System.out.println(request.getRequestURI());
打印结果：/news/main/list.jsp
4、 System.out.println(request.getRealPath("/"));
打印结果：F:\Tomcat 6.0\webapps\news\test