request.getRequestURL()和request.getRequestURI()的区别

https://blog.csdn.net/kaikaixinxiyiwannian/article/details/78732410

request.getRequestURL() 返回全路径

request.getRequestURI() 返回除去host（域名或者ip）部分的路径

request.getContextPath() 返回工程名部分，如果工程映射为/，此处返回则为空

request.getServletPath() 返回除去host和工程名部分的路径

 

 

例如：

request.getRequestURL() http://localhost:8080/jqueryLearn/resources/request.jsp 
request.getRequestURI() /jqueryLearn/resources/request.jsp
request.getContextPath()/jqueryLearn 
request.getServletPath()/resources/request.jsp