Request中getContextPath、getServletPath、getRequestURI、request.getRealPath的区别

假定你的项目名称为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\test