getRequestURL() - ํ๋กํ ์ฝ, ์๋ฒ ์ด๋ฆ ๋ฐ ํฌํธ๋ฅผ ํฌํจํ ์ ์ฒด URL์ ๋ฐํgetRequestURI() - ๊ฒฝ๋ก๋ง ๋ฐํgetcontextPath() - ํ๋ก์ ํธ๊ฒฝ๋ก๋ง ๋ฐํ http://localhost:8080/myapp/resource?id=123 getRequestURL() → http://localhost:8080 /myapp/resource ๋ฐํ getRequestURI() → /myapp/resource ๋ฐํgetcontextPath() → /myapp ๋ฐํ