Session and Cookies

HTTP Protocol

  • client๊ฐ€ server์— ์š”์ฒญ

  • server๋Š” ์š”์ฒญ์— ๋Œ€ํ•œ ์ฒ˜๋ฆฌ๋ฅผ ํ•œ ํ›„ client์— ์‘๋‹ต

  • ์‘๋‹ต ํ›„ ์—ฐ๊ฒฐ์„ ํ•ด์ œ >> STATELESS

    • ์ง€์†์ ์ธ ์—ฐ๊ฒฐ๋กœ ์ธํ•œ ์ž์› ๋‚ญ๋น„๋ฅผ ์ค„์ด๊ธฐ ์œ„ํ•ด ์—ฐ๊ฒฐ์„ ํ•ด์ œํ•จ

      • but, client ์™€ server๊ฐ€ ์—ฐ๊ฒฐ ์ƒํƒœ๋ฅผ ์œ ์ง€ํ•ด์•ผ ํ•˜๋Š” ๊ฒฝ์šฐ ๋ฌธ์ œ ๋ฐœ์ƒ (ex. login info ์ €์žฅ etc.)

      • ๊ทธ๋ž˜์„œ client ๋‹จ์œ„๋กœ ์ •๋ณด๋ฅผ ์œ ์ง€ํ•ด์•ผ ํ•˜๋Š” ๊ฒฝ์šฐ Cookie ์™€ Session ์ด ์‚ฌ์šฉ๋œ๋‹ค!!

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Session & Cookies in Java

Session
Cookie

Type

javax.servlet.http.HttpSession (interface)

javax.servlet.http.Cookie (Class)

์ €์žฅ ์œ„์น˜

server์˜ memory์— Object๋กœ ์ €์žฅ (์‚ฌ์šฉ์ž ์ •์˜ ํด๋ž˜์Šค๋ฅผ reference ํ•  ์ˆ˜ ์žˆ์Œ)

client์˜ ์ปดํ“จํ„ฐ์— file๋กœ ์ €์žฅ

์ €์žฅ ํ˜•์‹

Object๋Š” ๋ชจ๋‘ ๊ฐ€๋Šฅ (์ผ๋ฐ˜์ ์œผ๋กœ Dto, List๋“ฑ ์ €์žฅ)

file์— ์ €์žฅ๋˜๊ธฐ ๋•Œ๋ฌธ์— String ํ˜•ํƒœ

์‚ฌ์šฉ ์˜ˆ

Log-In ์‹œ ์‚ฌ์šฉ์ž ์ •๋ณด / ์žฅ๋ฐ”๊ตฌ๋‹ˆ

์ตœ๊ทผ ๋ณธ ๋ชฉ๋ก / ID ์ €์žฅ (์ž๋™ ๋กœ๊ทธ์ธ) / pop-up menu์—์„œ '์˜ค๋Š˜์€ ๊ทธ๋งŒ ๋ณด๊ธฐ'

  • ๊ณตํ†ต์ 

    • ์ „์—ญ์— ์ €์žฅํ•˜๊ธฐ ๋•Œ๋ฌธ์— project ๋‚ด์˜ ๋ชจ๋“  JSP์—์„œ ์‚ฌ์šฉ ๊ฐ€๋Šฅ

    • Map ํ˜•์‹์œผ๋กœ ๊ด€๋ฆฌํ•˜๊ธฐ ๋•Œ๋ฌธ์— key ๊ฐ’ ์˜ ์ค‘๋ณต ๋ถˆํ—ˆ

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