request.getContextPath, request.getRequestURI, request.getRequestURL, request.ServletPath, request.getRealPath

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1. request.getContextPath() 함수 = 프로젝트 Path만
예시)  http://localhost:8080/project/list.jsp
[return]        /project

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2.  request.getRequestURI() 함수 = 프로젝트 + 파일경로까지
예시)  http://localhost:8080/project/list.jsp

[return]        /project/list.jsp

String url = request.getRequestURI.split("/");
String Name = url[url.length -1];       // list.jsp

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3. request.getRequestURL() 함수 = 전체 경로를
예시) http://localhost:8080/project/list.jsp
[return]   http://localhost:8080/project/list.jsp

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4. request.ServletPath() 함수 = 파일명만
예시) http://localhost:8080/project/list.jsp
[return] /list.jsp

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5. request.getRealPath("") 함수 =서버 or 로컬 웹 애플리케이션 절대결로
예시) http://localhost:8080/projectname/list.jsp

[return]         c:\project\webapps\projectname\

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