request.getcontextpath request.getrealpath request.getServletPath() request.getRequestURI()

原来的地址忘了，谁发现提醒一下我，我好加上

1 区别

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
1.1 System.out.println(request.getContextPath());

打印结果：/news

1.2 System.out.println(request.getServletPath());

打印结果：/main/list.jsp

1.3 System.out.println(request.getRequestURI());

打印结果：/news/main/list.jsp

1.4 System.out.println(request.getRealPath("/"));

打印结果：F:\Tomcat 6.0\webapps\news\