HttpServletRequest 的getRequestURI()和getRequestURL()区别及用法

比如说有这样的一个页面

test1.jsp=======================

<a href ="test.jsp?name=wf">跳转到test2.jsp</a>

test2.jsp=======================

[java] view plain copy

 print?

1. HttpServletRequest req = (HttpServletRequest) request;  
2. HttpServletResponse resp = (HttpServletResponse) response;  
3. String servletPath = req.getRequestURI()  
4. String servletPath = req.getRequestURL()  

得到的值为：req.getRequestURI()----->/test/test.jsp 

      req.getRequestURL()----->http://localhost:8080/test/test.jsp 

其他方法：

basePath:http://localhost:8080/test/

getContextPath:/test 
getServletPath:/test.jsp 
getRealPath:D:\Tomcat 6.0\webapps\test\ 
getServletContext().getRealPath:D:\Tomcat 6.0\webapps\test\ 
getQueryString:name=wf