HttpServletRequest常用获取URL的方法

1、request.getRequestURL()

返回的是完整的url,包括Http协议,端口号,servlet名字和映射路径,但它不包含请求参数。
2、request.getRequestURI()

得到的是request URL的部分值,并且web容器没有decode过的

3、request.getContextPath() 
返回 the context of the request.

4、request.getServletPath() 
返回调用servlet的部分url.

5、request.getQueryString() 
返回url路径后面的查询字符串

 

示例:

当前url:http://localhost:8080/CarsiLogCenter_new/idpstat.jsp?action=idp.sptopn

request.getRequestURL() http://localhost:8080/CarsiLogCenter_new/idpstat.jsp
request.getRequestURI() /CarsiLogCenter_new/idpstat.jsp
request.getContextPath()/CarsiLogCenter_new
request.getServletPath() /idpstat.jsp

request.getQueryString()action=idp.sptopn

 

 当前url:http://localhost:8080/Enterprise/EntUserServlet?action_flag=jumpReg

httpRequest.getRequestURL()+"?" + httpRequest.getQueryString()  http://localhost:8080/Enterprise/EntUserServlet?action_flag=jumpReg

httpRequest.getRequestURI()+"?" + httpRequest.getQueryString() /Enterprise/EntUserServlet?action_flag=jumpReg

httpRequest.getServletPath()+"?" + httpRequest.getQueryString() /EntUserServlet?action_flag=jumpReg

 

 

 

 

来自:http://blog.csdn.net/gris0509/article/details/6340987

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