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

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

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