request.getRequestURI() 、request.getRequestURL() 、request.getContextPath()、request.getServletPath()区

request.getRequestURI() 、request.getRequestURL() 、request.getContextPath()、request.getServletPath()区别
request.getRequestURI() /jqueryWeb/resources/request.jsp

request.getRequestURL() http://localhost:8080/jqueryWeb/resources/request.jsp
request.getContextPath()/jqueryWeb

request.getServletPath()/resources/request.jsp

注： resources为WebContext下的目录名

jqueryWeb 为工程名 

-----------------------------------------------------

<%=request.getRequestURI() %><br/>

< %=request.getRequestURL() %><br/>

< %=request.getContextPath()%><br/>

< %=request.getServletPath() %><br/>

< %=request.getPathInfo() %><br/>
结果：

/test-struts.jsp
http://127.0.0.1:8080/test-struts.jsp
/test-struts.jsp

null

配置：

<action name="test" class="testStrutsAction" method="test"> 

   <result>/test-struts.jsp</result>

< /action>

  

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