Basic 14

Apache Log4j ๋ณด์•ˆ์ด์Šˆ : Log4j-core 2.17.0 ๋‹ค์šด๋กœ๋“œ

Log4j – Download Apache Log4j 2logging.apache.org* ๊ฐœ๋ฐœํ™˜๊ฒฝ์—์„œ ํ™•์ธ์ดํด๋ฆฝ์Šค ๊ฐœ๋ฐœํ™˜๊ฒฝ์—์„œ๋Š” pom.xmlํŒŒ์ผ์„ ์˜คํ”ˆํ•œํ›„Dependency Hierarchy ํƒญ์„ ์˜คํ”ˆํ•œํ›„ ๋ชฉ๋ก์—์„œ log4j-core : 2.X.X๊ฐ€ ์žˆ๋Š”์ง€ ํ™•์ธ ์ตœ์ข…์ ์œผ๋กœ ์ ์šฉ๋˜๋Š” ๋ฒ„์ „์€ "Resolved Dependency"๋ชฉ๋ก์—์„œ ํ™•์ธ ๊ฐ€๋Šฅ ๋˜๋Š” ์ดํด๋ฆฝ์Šค ๊ฐœ๋ฐœํ™˜๊ฒฝ์—์„œ Maven Dependency ํ•ญ๋ชฉ์˜ ๋ชฉ๋ก์—์„œlog4j-core-2.X.X.jar ํŒŒ์ผ์ด ์žˆ๋Š”์ง€ ํ™•์ธ * ์šด์˜ํ™˜๊ฒฝ์—์„œ ํ™•์ธWAS ์„œ๋ฒ„์—์„œ ์›นํ”„๋กœ์ ํŠธ๊ฐ€ ๋ฐฐํฌ๋œ ๋””๋ ‰ํ† ๋ฆฌ์—์„œWEB-INF/lib ๋””๋ ‰ํ† ๋ฆฌ์—์„œ log4j-core-2.X.X.jar ํŒŒ์ผ์ด ์žˆ๋Š”์ง€ ํ™•์ธ JDK8์€ Log4j-core 2.17.0 ์ด์ƒ ์ตœ์‹ ๋ฒ„์ „์„ ์ ์šฉ org.ap..

Basic 2021.12.20

Session ๊ธฐ๋ณธ ๊ฐ’ ํ™•์ธํ•˜๊ธฐ / Session ์‹œ๊ฐ„ ์ง์ ‘ ์„ค์ •ํ•˜๊ธฐ

session ๊ธฐ๋ณธ๊ฐ’ ํ™•์ธ ํ•˜๊ธฐ ํ”„๋กœ์ ํŠธ ์šฐํด๋ฆญ - Java Build Path - Libraries - Apache Tomcat ์œ„์น˜ ํ™•์ธ web.xml : session-config ํ™•์ธ session-timeout " 30๋ถ„ " ๊ธฐ๋ณธ ๊ฐ’ session timeout ์ง์ ‘ ์„ค์ •ํ•˜๊ธฐ ( ์šฐ์„ ์ˆœ์œ„ : controller > web.xml ) 1. web-xml = ๋ชจ๋“  ์„ธ์…˜์— ํƒ€์ž„์•„์›ƒ ์„ค์ • 10 // ๋ถ„ ๋‹จ์œ„ - 10๋ถ„ 2. controller = ํŠน์ • ์„ธ์…˜๋งŒ ํƒ€์ž„์•„์›ƒ ์„ค์ • session.setMaxInactiveInterval(20*60); // ์ดˆ ๋‹จ์œ„ - 20๋ถ„ * ๊ทธ์™ธ์˜ session ์‹œ๊ฐ„ ๋ฐ ์ œ๊ฑฐ * getCreationTime() - ์„ธ์…˜ ์ƒ์„ฑ ์‹œ๊ฐ„ getLastAccessedTime() - ..

Basic 2021.09.10

[JAVA]Java ๋ณ€์ˆ˜ type ํ™•์ธ / getClass().getSimpleName()

getClass().getSimpleName()์„ ์‚ฌ์šฉํ•˜์—ฌ Java์—์„œ ๋ณ€์ˆ˜ ํƒ€์ž…์„ ํ™•์ธํ•ด๋ณด์ž. map.put("key๊ฐ’", Arrays.asList("natrue1","natrue2")); System.out.println(map.get("map์— ๋‹ด์€ key ๊ฐ’").getClass().getSimpleName()); ์ถœ๋ ฅ ArrayList ์‘์šฉ if(map.get("map์— ๋‹ด์€ key ๊ฐ’").getClass().getSimpleName().equals("ArrayList"))

Basic 2021.07.30

.xls ์‹œํŠธ๊ฐ€ ๋‚˜์˜ค์ง€ ์•Š์„๊ฒฝ์šฐ ํ•ด๊ฒฐ๋ฐฉ๋ฒ•

๊ฐœ๋ฐœ์„ ํ•˜๋‹ค ๋ณด๋ฉด ์—‘์…€์„ ์‚ฌ์šฉํ•˜๋Š” ๊ฒฝ์šฐ๊ฐ€ ์ข…์ข… ์žˆ๋‹ค.(์š”์ฆ˜:() ์™œ ๋•Œ๋ฌธ์ผ๊นŒ ๋ฉฐ์น  ์ „๋ถ€ํ„ฐ ์ž˜ ๋‚˜์˜ค๋˜ ์—‘์…€ ์‹œํŠธ๊ฐ€ ๋‚˜์˜ค์ง€ ์•Š๋Š”๋‹ค. ๊ทธ๋ž˜์„œ ์ฐพ์•„๋ณธ. xls ์‹œํŠธ๊ฐ€ ๋‚˜์˜ค์ง€ ์•Š๋Š” ๊ฒฝ์šฐ ์›์ธ๊ณผ ํ•ด๊ฒฐ๋ฐฉ๋ฒ• * ์›์ธ ์ฐฝ ํฌ๊ธฐ๋ฅผ ์กฐ์ •ํ•˜๋ฉด ํƒญ์ด ์ˆจ๊ฒจ์ง„ ์ƒํƒœ๋กœ ์œ ์ง€. * ํ•ด๊ฒฐ๋ฐฉ๋ฒ• ๋ณด๊ธฐ - ๋ชจ๋‘ ์ •๋ ฌ - ๋ฐ”๋‘‘ํŒ์‹ ์ •๋ ฌ ์ฐธ๊ณ  : https://support.microsoft.com/ko-kr/office/%ED%86%B5%ED%95%A9-%EC%8B%9C%ED%8A%B8-%ED%83%AD%EC%9D%B4-%EB%B3%B4%EC%9D%B4%EC%A7%80-%EC%95%8A%EB%8A%94-%EA%B2%BD%EC%9A%B0-42623d50-2f9b-4583-ad9c-f1b381185e48

Basic 2021.07.20

[Zoom] ์คŒ ์‹œ๊ฐ„์ œํ•œ ์—†์ด ๋ฌด์ œํ•œ ์ด์šฉํ•˜๊ธฐ (nate.com)

1. nate.com ์ ‘์† (ํšŒ์›์ด ์•„๋‹ ๊ฒฝ์šฐ ํšŒ์›๊ฐ€์ž…์„ ํ•œ๋‹ค.) ํšŒ์›๊ฐ€์ž… | ๋„ค์ดํŠธ member.nate.com 2. ํšŒ์›๊ฐ€์ž… ์™„๋ฃŒ ํ›„ Zoom ๋ฌด๋ฃŒ๊ฐ€์ž… ํด๋ฆญ ๋„ค์ดํŠธ๋ฅผ ์ƒˆ๋กœ ๊ฐ€์ž…ํ•œ ๊ฑฐ๋‹ˆ ์คŒ๋„ ์ƒˆ๋กญ๊ฒŒ ๊ฐ€์ž…ํ•œ๋‹ค. ๋น„๋””์˜ค ํšŒ์˜, ์›น ํšŒ์˜, ์›จ๋น„๋‚˜, ํ™”๋ฉด ๊ณต์œ  Zoom์€ ๋ชจ๋ฐ”์ผ, ๋ฐ์Šคํฌํ†ฑ ๋ฐ ํšŒ์˜์‹ค ์‹œ์Šคํ…œ์—์„œ ๋น„๋””์˜ค ๋ฐ ์˜ค๋””์˜ค ํšŒ์˜, ์ฑ„ํŒ… ๋ฐ ์›จ๋น„๋‚˜๋ฅผ ์•ˆ์ „ํ•˜๊ณ  ํŽธ๋ฆฌํ•˜๊ฒŒ ์ง„ํ–‰ํ•  ์ˆ˜ ์žˆ๋Š” ํด๋ผ์šฐ๋“œ ํ”Œ๋žซํผ์„ ์ œ๊ณตํ•˜์—ฌ ์ฒจ๋‹จ ์—”ํ„ฐํ”„๋ผ์ด์ฆˆ ๋น„๋””์˜ค ํ†ต์‹ ์„ ์„ ๋„ zoom.us 1๋ฒˆ์—์„œ ๊ฐ€์ž…ํ•œ nate.com ์ด๋ฉ”์ผ์„ ์ž…๋ ฅํ•œ๋‹ค. 4. Zoom ๋ฌด๋ฃŒ๊ฐ€์ž… ํ›„ nate mail ํ™•์ธํ•˜๊ธฐ 5. Zoom ๊ณ„์ • ํ™œ์„ฑํ™” ํ•˜๊ธฐ ** ๊ณ„์ • ํ™œ์„ฑํ™” - ์ดˆ์ค‘๊ณ ๊ต(K-12) ๊ธฐ๊ด€์„ ๋Œ€๋ฆฌํ•˜์—ฌ ๊ฐ€์ž… '์˜ˆ/์•„๋‹ˆ์˜ค'์—์„œ '์•„๋‹ˆ์˜ค'๋กœ ํ•œ๋‹ค. 6. Zoom..

Basic 2021.05.07

[html] <a target ( _blank, _self, _parent, _top ) >

์ƒˆ ์œˆ๋„์šฐ ์ฐฝ์„ ์—ด์–ด ์›นํŽ˜์ด์ง€๋ฅผ ์—ฌ๋Š”๊ฒƒ. ๊ธฐ์กด์˜ ์ฐฝ์€ ๊ทธ๋Œ€๋กœ ๋‚จ๊ฒจ์ ธ ์žˆ๋‹ค. ํ˜„์žฌ ์œˆ๋„์šฐ์ฐฝ์— ๊ทธ๋Œ€๋กœ ์›นํŽ˜์ด์ง€๋ฅผ ์—ฐ๋‹ค. ํ˜„์žฌ ํ”„๋ ˆ์ž„์˜ ๋ถ€๋ชจ ํ”„๋ ˆ์ž„์—์„œ ์ƒˆ ์›นํŽ˜์ด์ง€๊ฐ€ ์—ด๋ฆฐ๋‹ค. ์ตœ์ƒ์œ„ ํ”„๋ ˆ์ž„์— ์—ด๋ฆฐ๋‹ค. _parent์™€ ๋น„์Šทํ•˜์ง€๋งŒ _parent๋Š” ๋ฐ”๋กœ ์ด์ „์ฐฝ(๋ถ€๋ชจ์ฐฝ)์—์„œ ์—ด๋ฆฌ๋Š” ๋ฐ˜๋ฉด, _top์€ ์ตœ์ƒ์œ„ (๊ฐ€์žฅ์ตœ๊ณ  ๋ถ€๋ชจ์ฐฝ)์— ์—ด๋ฆฐ๋‹ค. ํŠธ๋ฃจ์ฝ”๋”ฉ

Basic 2021.04.16

[html] input tag basic Attribute

input : ์‚ฌ์šฉ์ž๋กœ๋ถ€ํ„ฐ ์ •๋ณด๋ฅผ ์ž…๋ ฅ๋ฐ›์„ ์ˆ˜ ์žˆ๋Š” tag id id๊ฐ’ class class๊ฐ’ name ์„œ๋ฒ„๋กœ ์ „๋‹ฌ๋˜๋Š” ์ด๋ฆ„ ์„ค์ •ํ•˜๋Š” ์†์„ฑ value ์ž…๋ ฅํƒœ๊ทธ์˜ ์ดˆ๊ธฐ๊ฐ’์„ ์„ค์ •ํ•˜๋Š” ์†์„ฑ type ์ž…๋ ฅํƒœ๊ทธ์˜ ์œ ํ˜•์„ ์„ค์ • ํ•˜๋Š” ์†์„ฑ min ์ตœ์†Œ์ˆ˜์น˜ max ์ตœ๋Œ€์ˆ˜์น˜ step ๋ฐ”๋€Œ๋Š” ์ˆ˜์˜ ํฌ๊ธฐ, ๋‹จ์œ„ autofocus ์ปค์„œ ์ž๋™ ํ‘œ์‹œ placeholder ๊ธฐ๋ณธ์ ์œผ๋กœ ์“ฐ์—ฌ์ ธ ์žˆ๋Š” ์•ˆ๋‚ด๊ธ€ readonly ์ฝ๊ธฐ๋งŒ ๊ฐ€๋Šฅ required ์•„๋ฌด๊ฒƒ๋„ ์ž…๋ ฅ ์•ˆํ•˜๋Š” ์ƒํƒœ ๋ฐฉ์ง€ (ํ•„์ˆ˜ ๊ฐ’ ์ฒดํฌ) maxlength ์ž…๋ ฅ๋˜๋Š” ๋ฌธ์ž์˜ ์ตœ๋Œ€ ๊ธธ์ด ์ œํ•œ minlength ์ž…๋ ฅ๋˜๋Š” ๋ฌธ์ž์˜ ์ตœ์†Œ ๊ธธ์ด ์ œํ•œ ์ฐธ๊ณ  : m.blog.naver.com/PostView.nhn?blogId=govlrhaehfdl&logNo=221230214889&pro..

Basic 2021.04.15

[html] table colspan rowspan

table make table์„ ๋งŒ๋“œ๋Š” ํƒœ๊ทธ table์˜ header๋ฅผ ๋งŒ๋“œ๋Š” ํƒœ๊ทธ table์˜ ํ–‰์„ ๋งŒ๋“œ๋Š” ํƒœ๊ทธ table์˜ ์—ด์„ ๋งŒ๋“œ๋Š” ํƒœ๊ทธ table1 table2 table1์˜ ์ฒซ๋ฒˆ์งธ ์นธ table1์˜ ๋‘๋ฒˆ์งธ ์นธ table2์˜ ์ฒซ๋ฒˆ์งธ ์นธ table2์˜ ๋‘๋ฒˆ์งธ ์นธ table disign border ํ…Œ์ด๋ธ”์˜ ํ…Œ๋‘๋ฆฌ border="1" bordercolor ํ…Œ์ด๋ธ”์˜ ํ…Œ๋‘๋ฆฌ ์ƒ‰์ƒ bordercolor="#ff0026" width ํ…Œ์ด๋ธ” ๊ฐ€๋กœ ํฌ๊ธฐ width ="500" height ํ…Œ์ด๋ธ” ์„ธ๋กœ ํฌ๊ธฐ height="300" align ์ •๋ ฌ align = "center" bgcolor ๋ฐฐ๊ฒฝ์ƒ‰ bgcolor="#ff0026" colspan ๊ฐ€๋กœ(์—ด) ํ•ฉ๋ณ‘ colspan="1" rowspan ์„ธ๋กœ(ํ–‰) ํ•ฉ๋ณ‘ ..

Basic 2021.04.14

[java] equals ๊ณผ == ์˜ ์ฐจ์ด

์ž๋ฐ”์—์„œ ๋ฌธ์ž๋‚˜ ๊ฐ์ฒด๋ฅผ ๋น„๊ตํ•  ๋•Œ๋Š” ==๊ฐ€ ์•„๋‹Œ equals๋ฅผ ์‚ฌ์šฉ equals == ๊ฐ์ฑ„๋ผ๋ฆฌ ๋‚ด์šฉ(๊ฐ’)์„ ๋น„๊ตํ•  ์ˆ˜ ์žˆ๋Š” '๋ฉ”์†Œ๋“œ' ๊ฐ์ฒด์˜ ์ฐธ์กฐ(์ฃผ์†Œ)๊ฐ’์„ ๋น„๊ตํ•˜๋Š” '์—ฐ์‚ฐ์ž' ๋‚ด์šฉ์ž์ฒด๋ฅผ ๋น„๊ต ์ฃผ์†Œ๊ฐ’์„ ๋น„๊ต boolean๊ฐ’์„ ๋ฆฌํ„ด boolean๊ฐ’์„ ๋ฆฌํ„ด ์•ˆ์ •์ ์œผ๋กœ ๋ฌธ์ž์—ด์„ ๋น„๊ต ํ•ญ๋“ฑ ์—ฐ์‚ฐ์ž(Operator) ๋ฐ˜๋Œ€ : !(a.equals(b)); ๋ฐ˜๋Œ€ : != ์ฐธ๊ณ  : opentutorials.org/module/4378/26781

Basic 2021.04.07

OpenLayers ์˜คํ”ˆ๋ ˆ์ด์–ด

OpenLayers ์˜คํ”ˆ๋ ˆ์ด์–ด๋Š” ์˜คํ”ˆ ์†Œ์Šค ์›น ๋ธŒ๋ผ์šฐ์ €์—์„œ ์ง€๋„ ๋ฐ์ดํ„ฐ๋ฅผ ํ‘œ์‹œํ•˜๊ธฐ ์œ„ํ•œ javaScript ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ OpenLayers๋Š” ์ง€๋„์„œ๋ฒ„๋ฅผ ์ด์šฉํ•ด์„œ ์ง€๋„๋ฅผ ๋„์šธ ์ˆ˜ ์žˆ๋Š” ์˜คํ”ˆ์†Œ์Šค ์ง€๋„ ์„œ๋น„์Šค๋ฅผ ์ œ๊ณตํ•˜์ง€ ์•Š์Œ. ์ง€๋„์„œ๋น„์Šค๋ฅผ ํŽธ๋ฆฌํ•˜๊ฒŒ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ๋„๊ตฌ ๊ธฐ๋Šฅ๋ณ„๋กœ ๋‚˜๋ˆˆ js / ์ „์ฒด๋กœ ๋ฌถ์ธ js 1 ) map ์›น ์ง€๋„ ์„œ๋น„์Šค๋ฅผ ์ œ๊ณตํ•˜๊ธฐ ์œ„ํ•ด ๊ธฐ๋ณธ์ด ๋˜๋Š” ํด๋ž˜์Šค ์ƒ์„ฑ์ž : OpenLayers Map(div, options) div ์ง€๋„๋ฅผ ๋ณด์—ฌ์ค„ ์˜์—ญ ์ƒ์„ฑ์„ ์œ„ํ•œ div์ง€์ • options Map๊ฐ์ฒด ์ƒ์„ฑ์„ ์œ„ํ•œ ์˜ต์…˜ ๋“ค๋กœ ์˜์—ญ, ์ขŒํ‘œ๊ณ„, ๋‹จ์œ„ ๋“ฑ์„ ๋ช…์‹œํ•˜๋Š” ๋ถ€๋ถ„ 2 ) Layer Layer๋ฅผ ์ƒ์„ฑํ•˜๊ณ  ์กฐ์ž‘ํ•˜๋Š” ํ”„๋กœํผํ‹ฐ ๋ฐ ํ•จ์ˆ˜๋กœ ๊ตฌ์„ฑ๋œ ํด๋ž˜์Šค. WMS , WFS , GML , Vector La..

Basic 2021.03.24