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JAVA, Eclipse / Commitํ• ๋•Œ git ignore๋กœ .classpath์™€ .project ์ œ์™ธ์‹œํ‚ค๊ธฐ https://www.toptal.com/developers/gitignore gitignore.io Create useful .gitignore files for your project www.toptal.com ์š” ์‚ฌ์ดํŠธ์— ๊ฐ€์„œ ๊ฒ€์ƒ‰์ฐฝ์— ๋ณด๋ฉด ์šด์˜์ฒด์ œ, ๊ฐœ๋ฐœ ํˆด, ์–ธ์–ด๋ฅผ ์ž…๋ ฅํ•˜๋ผ๊ณ  ๋‚˜์˜ค๋Š”๋ฐ ๊ฐ๊ฐ ํ‚ค์›Œ๋“œ์ฒ˜๋Ÿผ ์ž‘์„ฑํ•ด์ฃผ๊ณ  Create. ๊ทธ๋Ÿผ ์•„๋ž˜์™€ ๊ฐ™์€ ์†Œ์Šค๋ฅผ ์ค€๋‹ค. ์ด ์†Œ์Šค๋ฅผ ์ „์ฒด ๋ณต์‚ฌํ•œ๋‹ค. ++ ๋”ฐ๋กœ ์ œ์™ธํ•˜๊ณ ์‹ถ์€ ํŒŒ์ผ์ด๋‚˜ ํด๋”๊ฐ€ ์žˆ๋‹ค๋ฉด ์•„๋ฌด ๋นˆ ์ค„์— ์ถ”๊ฐ€ํ•˜๋ฉด๋œ๋‹ค. ํŒŒ์ผ์˜ ๊ฒฝ์šฐ ๊ทธ๋ƒฅ 'ํŒŒ์ผ๋ช…(ํ™•์žฅ์ž ํฌํ•จ ํ•„์ˆ˜)' ํด๋”๋ฉด 'ํด๋”๋ช…/' ํŠน์ • ํ™•์žฅ์ž ์ „๋ถ€๋ฉด '.ํ™•์žฅ์ž๋ช…' ์ž‘์€๋”ฐ์˜ดํ‘œ ๋‹น์—ฐํžˆ ๋นผ๊ณ  ์ ๊ธฐ. ๊ทธ๋ฆฌ๊ณ  ์ดํด๋ฆฝ์Šค์—์„œ Git์„ ์—ด์–ด๋‘” ์ƒํƒœ๋กœ ๋ณด์•˜์„ ๋•Œ Git Stating์—” ์šฐ๋ฆฌ๊ฐ€ ์—†์• ์•ผ ํ•  .classpa.. 2020. 6. 19.
[Java] Servlet AbstractMethodError T4CConnection ์—๋Ÿฌ ํ•ด๊ฒฐ eclipse ์—๋Ÿฌ ๋ฉ”์‹œ์ง€ : java.lang.AbstractMethodError: Receiver class oracle.jdbc.driver.T4CConnection does not define or inherit an implementation of the resolved method 'abstract boolean isValid(int)' of interface java.sql.Connection.์„œ๋ธ”๋ฆฟ์„ ์‹คํ–‰์‹œ์ผฐ์„ ๋•Œ ํ™”๋ฉด์ด ๋‚˜์˜ค์ง€ ์•Š๋Š”๋‹ค.  ํ•ด๊ฒฐ : Servers ํ”„๋กœ์ ํŠธ์˜ context.xml ํŒŒ์ผ์˜ ํƒœ๊ทธ ์•ˆ์— factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" ์‚ฝ์ž…โ€‹ 2020. 6. 16.
[objective C] Visual Studio ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ๊ฐ€ ์‹คํ–‰๋  ๋•Œ ๋ฌธ์ œ ํ•ด๊ฒฐ C์–ธ์–ด ๋ฌธ์ œ: ๋น„์ฃผ์–ผ ์ฝ”๋“œ์—์„œ B ํ”„๋กœ์ ํŠธ ์† ์†Œ์Šค๋ฅผ ๋นŒ๋“œํ–ˆ์œผ๋‚˜ ๋นŒ๋“œ์ œ์™ธ์‹œํ‚จ A ํ”„๋กœ์ ํŠธ ์† ์†Œ์Šค์˜ ๊ฒฐ๊ณผ๊ฐ€ ์‹คํ–‰๋  ๋•Œ  ๋นŒ๋“œ ์ œ์™ธํ•  ํ”„๋กœ์ ํŠธ ์šฐํด๋ฆญ>์‹œ์ž‘ ํ”„๋กœ์ ํŠธ๋กœ ์„ค์ • 2020. 6. 3.
Linux ๋ฆฌ๋ˆ…์Šค์—์„œ Java ํด๋ž˜์Šค ํŒŒ์ผ ์ปดํŒŒ์ผํ•˜๊ธฐ javac ํด๋ž˜์Šค๋ช….java java ํด๋ž˜์Šค๋ช… 2020. 5. 30.
[MariaDB/JSP] ClassNotFoundException ์—๋Ÿฌ ํ•ด๊ฒฐ๋ฐฉ๋ฒ• Eclipse์—์„œ Dynamic Web Project๋กœ JSP์ฝ”๋“œ๋ฅผ ์งœ๋‹ค๊ฐ€ ๋ถ„๋ช… ๊ตฌ๊ธ€๋ง๋Œ€๋กœ mariadb-java-client.jar ํŒŒ์ผ์„ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ์— ์ถ”๊ฐ€ํ•˜์˜€์Œ์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ  ClassNotFoundException๊ฐ€ ๊ณ„์† ๋–ด๋‹ค. ์›์ธ๋ถˆ๋ช… ์ƒํƒœ.. ํ•ด๊ฒฐ๋ฐฉ๋ฒ•: ํ”„๋กœ์ ํŠธ ์šฐํด๋ฆญ>Properties>Deployment Assembly>Add>Java Build Path Entries ์„ ํƒ>mariadb-java-client.jar ์„ ํƒ>์ถ”๊ฐ€์™„๋ฃŒ>์ดํด๋ฆฝ์Šค ์žฌ๋ถ€ํŒ…(๊ถŒ์žฅ) mariadb ์ „์šฉ JDBC๊ฐ€ ๊ฒฐ๊ตญ WEB-INF/libํด๋”์—๋„ ์œ„์น˜ํ•˜๋Š”๊ฒŒ ์ค‘์š”ํ•œ ๋“ฏ ํ•˜๋‹ค. 2020. 5. 27.
[MariaDB] INSERT๋ฌธ ํ•œ๊ธ€ ์˜ค๋ฅ˜(Incorrect string value) ํ•ด๊ฒฐ my.ini ํŒŒ์ผ์— ์•„๋ž˜ ์†์„ฑ์„ ์ง€์ • [mysqld] init_connect="SET collation_connection = utf8_general_ci" init_connect="SET NAMES utf8" collation-server = utf8_general_ci character-set-server = utf8 [client] default-character-set = utf8 [mysql] default-character-set=utf8โ€‹ Mysql> SHOW VARIABLES LIKE "c%" ๋ช…๋ น ์ž…๋ ฅ ํ›„ Value๊ฐ’์— 'latin1'์ด ์žˆ์œผ๋ฉด ์•ˆ๋จ. ๋ชจ๋‘ 'utf8'๋กœ ๋ฐ”๊พผ๋‹ค. ์ฟผ๋ฆฌ์ฐฝ์—์„œ ์†์„ฑ ์„ค์ •์„ ํ•  ์ˆ˜ ์žˆ๋‹ค. (my.ini ์ˆ˜์ •๋งŒ์œผ๋กœ ๋ณ€๊ฒฝ ์•ˆ ๋  ๊ฒฝ์šฐ) Mysql> SET [Var.. 2020. 5. 26.
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