๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

๐ŸŒ  ์ž๋ฐ” ์„œ๋ฒ„ ํŽ˜์ด์ง€ JSP32

Web - Servlet ์‹ค์Šต index (client) servlet ๊ธฐ๋ณธ xml์— sevlet ์ง€์ • helloServlet sample01.HelloServlet helloServlet /location HelloServlet package sample01; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class HelloServlet extends HttpServlet { @Override protected v.. 2021. 3. 14.
Web - 1๏ธโƒฃ Servlet์ด๋ž€ Servlet์˜ ๊ฐœ๋…๊ณผ ๋™์ž‘ ๊ณผ์ •์„ ์ดํ•ดํ•œ๋‹ค. Goal Web Service์˜ ๊ธฐ๋ณธ์ ์ธ ๋™์ž‘ ๊ณผ์ •์„ ์ดํ•ดํ•œ๋‹ค. ์‚ฌ์šฉ์ž ์ž…๋ ฅ์„ ์œ„ํ•œ HTML Form์„ ์ดํ•ดํ•œ๋‹ค. Servlet์„ ์ดํ•ดํ•œ๋‹ค. Web Service์˜ ๊ธฐ๋ณธ์ ์ธ ๋™์ž‘ ๊ณผ์ • HTML Form -> Servlet -> HTML Page 1. ์‚ฌ์šฉ์ž๊ฐ€ ์›น ํŽ˜์ด์ง€ form(HTML Form)์„ ํ†ตํ•ด ์ž์‹ ์˜ ์ •๋ณด๋ฅผ ์ž…๋ ฅํ•œ๋‹ค. (Input) 2. Servlet์˜ doGet() ๋˜๋Š” doPost() ๋ฉ”์„œ๋“œ๋Š” ์ž…๋ ฅํ•œ form data์— ๋งž๊ฒŒ DB ๋˜๋Š” ๋‹ค๋ฅธ ์†Œ์Šค์—์„œ ๊ด€๋ จ๋œ ์ •๋ณด๋ฅผ ๊ฒ€์ƒ‰ํ•œ๋‹ค. 3. ์ด ์ •๋ณด๋ฅผ ์ด์šฉํ•˜์—ฌ ์‚ฌ์šฉ์ž์˜ ์š”์ฒญ์— ๋งž๋Š” ์ ์ ˆํ•œ ๋™์  ์ปจํ…์ธ (HTML Page)๋ฅผ ๋งŒ๋“ค์–ด์„œ ์ œ๊ณตํ•œ๋‹ค. (Output) HTML Form input elements(Ex.. 2021. 3. 14.
Web Server์— ๋Œ€ํ•ด Web Server ๊ฐœ๋… ํด๋ผ์ด์–ธํŠธ๊ฐ€ ์„œ๋ฒ„์— ํŽ˜์ด์ง€ ์š”์ฒญ์„ ํ•˜๋ฉด ์š”์ฒญ์„ ๋ฐ›์•„ ์ •์  ์ฝ˜ํ…์ธ (. html,. png,. css ๋“ฑ)๋ฅผ ์ œ๊ณตํ•˜๋Š” ์„œ๋ฒ„ ์ •์  ์ปจํ…์ธ ๋ฅผ ์ œ๊ณตํ•˜๋Š” ์„œ๋ฒ„! HTTP ํ”„๋กœํ† ์ฝœ์„ ๊ธฐ๋ฐ˜์œผ๋กœ ํ•˜์—ฌ ํด๋ผ์ด์–ธํŠธ(์›น ๋ธŒ๋ผ์šฐ์ € ๋˜๋Š” ์›น ํฌ๋กค๋Ÿฌ)์˜ ์š”์ฒญ์„ ์„œ๋น„์Šคํ•˜๋Š” ๊ธฐ๋Šฅ์„ ๋‹ด๋‹น 1. ์ •์ ์ธ ์ฝ˜ํ…์ธ  ์ œ๊ณต WAS๋ฅผ ๊ฑฐ์น˜์ง€ ์•Š๊ณ  ๋ฐ”๋กœ ์ž์›์„ ์ œ๊ณตํ•œ๋‹ค.(. html. jpeg. css) 2. ๋™์ ์ธ ์ฝ˜ํ…์ธ  ์ œ๊ณต์„ ์œ„ํ•œ ์š”์ฒญ ์ „๋‹ฌ ํด๋ผ์ด์–ธํŠธ์˜ ์š”์ฒญ(Request)์„ WAS์— ๋ณด๋‚ด๊ณ , WAS๊ฐ€ ์ฒ˜๋ฆฌํ•œ ๊ฒฐ๊ณผ๋ฅผ ํด๋ผ์ด์–ธํŠธ์—๊ฒŒ ์ „๋‹ฌ(์‘๋‹ต, Response)ํ•œ๋‹ค. ํด๋ผ์ด์–ธํŠธ๋Š” ์ผ๋ฐ˜์ ์œผ๋กœ ์›น ๋ธŒ๋ผ์šฐ์ €(ํฌ๋กฌ, IE, FireFox ๋“ฑ)๋ฅผ ์˜๋ฏธ ์‚ฌ์šฉ ์ด์œ  ๋ˆ„๊ตฐ๊ฐ€ ์ด๋Ÿฐ ๋ง์„ ํ•œ๋‹ค. ์š”์ฆ˜ WAS๋งŒ ์„ค์น˜ํ•˜๋ฉด ์›น ์„œ๋ฒ„ ๊ธฐ๋Šฅ๋„ ๋‹ค .. 2021. 3. 14.
4๏ธโƒฃ ์ œ์ด์Šจ JSON - ์ž๊ธฐ๊ฐ€ ์ข‹์•„ํ•˜๋Š”์ฑ… 5๊ฐ€์ง€ ํ…Œ์ด๋ธ” ์‹œ๊ฐํ™” XML+ ์ฝ”๋“œ ํŽผ์น˜๊ธฐ -> ๋”๋ณด๊ธฐ books.xml ์ฝ”๋“œ ํŽผ์น˜๊ธฐ -> ๋”๋ณด๊ธฐ Lord of the ring jf.tolkin 12$ Harry Porter Joanne Rowling 20$ The little Prince Saint-Exupéry 9$ And Then There Were None Agatha Christie 16$ The Da Vinci Code Dan Brown 30$ 2021. 3. 9.