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damedog id:damedog

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Log4j 2ãƒã‚°ã‚·ã‚¹ãƒ†ãƒ ã®åŸºç¤Žã¨ãªã‚‹æ¦‚å¿µã®ç†è§£ - Qiita
ã“ã®è¨˜äº‹ã§ã¯ã€Apache Log4jä¸Šã«æ§‹ç¯‰ã•ã‚ŒãŸæ–°ã—ã„ãƒã‚°ã‚·ã‚¹ãƒ†ãƒ ã§ã‚ã‚‹Log4j 2ã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’åˆ†è§£ã—ã¦ã€ãã®åŸºç¤Žã¨ãªã‚‹æ¦‚å¿µã«ã¤ã„ã¦æ·±ãæŽ˜ã‚Šä¸‹ã’ã¦ã„ãã¾ã™ã€‚ æœ¬ãƒ–ãƒã‚°ã¯è‹±èªžç‰ˆã‹ã‚‰ã®ç¿»è¨³ã§ã™ã€‚ã‚ªãƒªã‚¸ãƒŠãƒ«ã¯ã“ã¡ã‚‰ã‹ã‚‰ã”ç¢ºèªã„ãŸã ã‘ã¾ã™ã€‚ä¸€éƒ¨æ©Ÿæ¢°ç¿»è¨³ã‚’ä½¿ç”¨ã—ã¦ãŠã‚Šã¾ã™ã€‚ç¿»è¨³ã®é–“é•ã„ãŒã‚ã‚Šã¾ã—ãŸã‚‰ã€ã”æŒ‡æ‘˜ã„ãŸã ã‘ã‚‹ã¨å¹¸ã„ã§ã™ã€‚ æ¦‚è¦ Log4j 2ã¯ã€Logbackã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã‚’å‚ç…§ã—ã¦Apache Log4jä¸Šã«æ§‹ç¯‰ã•ã‚ŒãŸå…¨ãæ–°ã—ã„ãƒã‚°ã‚·ã‚¹ãƒ†ãƒ ã§ã™ã€‚ã“ã‚Œã¯ã€Log4jãŒåŸºæœ¬çš„ã«Logbackã«ã‚ˆã£ã¦éžæŽ¨å¥¨ã«ãªã£ã¦ã„ã‚‹ã‹ã‚‰ã ã¨æ€ã„ã¾ã™ã€‚ Log4j 2ã®åˆ©ç‚¹ã«ã¤ã„ã¦ã¯ã€å…¬å¼ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆApache Log4j 2ã‚’å‚ç…§ã—ã¦ãã ã•ã„ã€‚ Log4j 2 ã¯ã€Logback ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã«å†…åœ¨ã™ã‚‹ã„ãã¤ã‹ã®å•é¡Œã‚’ä¿®æ£ã—ãªãŒã‚‰ã€Logback ã§åˆ©ç”¨å¯èƒ½ãªå¤šãã®æ”¹å–„ç‚¹ã‚’æä¾›ã—ã¦ã„ã¾ã™ã€‚ AP
damedog 2022/01/14
log

java

Logback
ãƒªãƒ³ã‚¯
ã€ã‚ªãƒ³ãƒ©ã‚¤ãƒ³ã€‘ JJUG CCC 2021 Spring ç™ºè¡¨è³‡æ–™ãƒ»å‹•ç”»ã¾ã¨ã‚
damedog 2021/05/25
ã‚ã¨ã§èªã‚€

*ã¾ã¨ã‚

jjug_ccc

jjug

Java
ãƒªãƒ³ã‚¯
BLOG.IK.AM - Javaç”¨Validatorãƒ©ã‚¤ãƒ–ãƒ©ãƒª"YAVI"(ãƒ¤ãƒ´ã‚¡ã‚¤)ã®ç´¹ä»‹
damedog 2021/05/24
ãƒ¤ãƒ´ã‚¡ã‚¤

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ãƒ©ã‚¤ãƒ–ãƒ©ãƒª

java
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JVMä¸Šã§å‹•ãWebã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒãƒªã‚½ãƒ¼ã‚¹ã‚’é£Ÿã„ã¤ã¶ã™åŽŸå› ã‚’æŽ¢ã‚‹ãŸã‚ã«ã‚„ã£ãŸã“ã¨ã€Backlog PlayåŒ–ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã€‘
ãƒŒãƒ¼ãƒ©ãƒœã§Scalaã‚’æ›¸ãRubyistã®è°·æœ¬ã§ã™ã€‚ãƒŒãƒ¼ãƒ©ãƒœã§ã¯ã€Backlogã®é–‹ç™ºã‚’æ‹…å½“ã—ã¦ãŠã‚Šã€æœ€è¿‘ã§ã¯Backlogã‚’Javaã‹ã‚‰Scala / Play Frameworkã«ç§»è¡Œã™ã‚‹ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã®ãƒ¡ãƒ³ãƒãƒ¼ã§ã—ãŸã€‚ Backlogã®PlayåŒ–ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯ã€OutOfMemorryError(ä»¥ä¸‹ã€OOM)ã®ç™ºç”Ÿã‚„CPUä½¿ç”¨çŽ‡ã¨ãƒãƒ¼ãƒ‰ã‚¢ãƒ™ãƒ¬ãƒ¼ã‚¸ãŒä¸ŠãŒã£ãŸã¾ã¾ã¨ã„ã†ã€Java Virtual Machineï¼ˆä»¥ä¸‹ã€JVMï¼‰ä¸Šã§å‹•ãBacklogã®ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã«é–¢ã™ã‚‹å•é¡Œã«å¯¾å‡¦ã™ã¹ãã€ä½•åº¦ã‹Heap/Thread dumpã‚’è¦‹ã‚‹æ©Ÿä¼šãŒã‚ã‚Šã¾ã—ãŸã€‚ ç§ãŒPlayåŒ–ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§å–ã‚Šçµ„ã‚“ã ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹æ”¹å–„ã®çŸ¥è¦‹ã‚„çµŒé¨“ã‚’ã‚‚ã¨ã«ã€æœ¬è¨˜äº‹ã§ã¯ã€ŒJVMã§èµ·ã“ã£ãŸãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã®å•é¡Œã®åˆ‡ã‚Šåˆ†ã‘æ–¹ã€ã«ã¤ã„ã¦ãŠå±Šã‘ã—ã¾ã™ã€‚ ã¯ã˜ã‚ã« æœ¬ç•ªç’°å¢ƒã§ã—ã°ã‚‰ãå‹•ã‹ã—ã¦ã„ã‚‹ã¨ã€ã‚³ãƒ¼ãƒ‰è‡ªä½“ã¯æ£ã—ãå®Ÿè¡Œã§ãã‚‹ã‘
damedog 2021/05/07
jvm

gc

heap

java
ãƒªãƒ³ã‚¯
SHALLOW HEAP, RETAINED HEAP
damedog 2021/05/07
java

heap

heapdump

shallow heap
ãƒªãƒ³ã‚¯
Application Performance Monitoring | Splunk
damedog 2021/05/07
java

gc

èªã¿ç‰©

algorithm
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è‰¯ã„ã‚³ãƒ¼ãƒ‰ã¨ã¯ä½•ã‹ - ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢æ–°å’ç ”ä¿® ã‚¹ãƒ©ã‚¤ãƒ‰å…¬é–‹ï½œCyberZ Developer
CyberZ CTOå®¤ã®ãƒ¡ãƒ³ãƒãƒ¼ã®æ£® (@at_sushi_at) ã§ã™ã€‚ å…ˆæ—¥ã€æ ªå¼ä¼šç¤¾ã‚µã‚¤ãƒãƒ¼ã‚¨ãƒ¼ã‚¸ã‚§ãƒ³ãƒˆã®2021å¹´åº¦ ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢æ–°å’ç ”ä¿®ã§ã‚³ãƒ¼ãƒ‰ã®å“è³ªã«é–¢ã™ã‚‹è¬›ç¾©ã‚’è¡Œã„ã¾ã—ãŸã€‚ ãã“ã§è©±ã—ãŸå†…å®¹ã¨ã‚¹ãƒ©ã‚¤ãƒ‰ã‚’å®Œå…¨å…¬é–‹ã—ã¾ã™ã€‚ 45åˆ†ã®å†…å®¹ã®ãŸã‚ã€ã‹ãªã‚Šé•·ã„ã§ã™ãŒã€å€‹äººçš„ã«ãœã²ä¸€èªã—ã¦æ¬²ã—ã„å†…å®¹ã«ãªã£ã¦ã„ã¾ã™ã€‚ ã¯ã˜ã‚ã« ã“ã‚“ã«ã¡ã¯ã€æ£® ç¯¤å²ã¨è¨€ã„ã¾ã™ã€‚2019å¹´åº¦å…¥ç¤¾ã§ä»Šå¹´ã§3å¹´ç›®ã«ãªã‚Šã¾ã™ã€‚æ ªå¼ä¼šç¤¾CyberZã®OPENREC.tvã¨ã„ã†ãƒ—ãƒãƒ€ã‚¯ãƒˆã§Androidã‚¢ãƒ—ãƒªãƒãƒ¼ãƒ ã®ãƒªãƒ¼ãƒ€ã‚’ã‚„ã£ã¦ã„ã¾ã™ã€‚ æœ€è¿‘ã¯ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ãä»•äº‹ä»¥å¤–ã«ã€æ¬¡ä¸–ä»£ãƒžãƒã‚¸ãƒ¡ãƒ³ãƒˆå®¤ã¨ã„ã†å…¨ç¤¾æ¨ªæ–çµ„ç¹”ã§Developers Blogã®æ”¹å–„ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã‚’å®Ÿè¡Œã—ãŸã‚Šã€CyberZ CTOå®¤ã§çµ„ç¹”æ´»æ€§åŒ–ã«å–ã‚Šçµ„ã‚“ã§ã„ã¾ã™ã€‚ ã‚ã¨ã€2019å¹´åº¦ã®æœªè¸ã‚¹ãƒ¼ãƒ‘ãƒ¼ã‚¯ãƒªã‚¨ãƒ¼ã‚¿ã«ã‚‚èªå®šã•ã‚Œã¾ã—ãŸã€‚ ãƒ¡ã‚¤ãƒ³ã®ä»•äº‹ã¨ã—ã¦ã¯ã€å…¥ç¤¾ã—ã¦
damedog 2021/04/28
java

èªã¿ç‰©

é–‹ç™º

è¨è¨ˆ
ãƒªãƒ³ã‚¯
Immutable Lombok annotated class with Jackson
What is the preferred way to create class that is Immutable Can be serialized/deserialized with Jackson Human-readable and with low level of boilerplate Preferably, I would have liked something like this to work: @Data(onConstructor = @__(@JsonCreator)) and then have all fields to be private final. However, this does not even compile (and I'm not sure why). Using @AllArgsConstructor(onConstructor
damedog 2021/02/25
jackson

java

lombok
ãƒªãƒ³ã‚¯
ä¾‹å¤–è¨è¨ˆã«ãŠã‘ã‚‹å¤§ç½ª - å¥‘ç´„
1. ä¾‹å¤–è¨è¨ˆ ã«ãŠã‘ã‚‹å¤§ç½ª å’Œç”° å“äºº (a.k.a id:t-wada or @t_wada) Jun 27, 2012 @ java-ja 12å¹´6æœˆ28æ—¥æœ¨æ›œæ—¥ 2. è‡ªå·±ç´¹ä»‹ åå‰: å’Œç”° å“äºº (ã‚ã ãŸãã¨) ãƒ–ãƒã‚°: http://d.hatena.ne.jp/t-wada ãƒ¡ãƒ¼ãƒ«: takuto.wada@gmail.com Twitter: http://twitter.com/t_wada ã‚¿ãƒ¯ãƒ¼ã‚ºï½¥ã‚¯ã‚¨ã‚¹ãƒˆæ ªå¼ä¼šç¤¾ å–ç· å½¹ç¤¾é•· 12å¹´6æœˆ28æ—¥æœ¨æ›œæ—¥
damedog 2021/02/24
java

è¨è¨ˆ

programming

exception

slideshare
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EqualsVerifier
EqualsVerifier Makes testing equals() and hashCode() in Java a one-liner! Have you ever written an equals method, along with five screens of unit tests to test it? Or worse: not bothered to test it at all, because â€œthe IDE generates it anywayâ€? EqualsVerifier helps you. Testing equals can be as simple as: import nl.jqno.equalsverifier.*; @Test public void equalsContract() { EqualsVerifier.forClass
damedog 2021/02/22
test

library

java
ãƒªãƒ³ã‚¯
é–‹ç™ºæ™‚ã«å®Ÿéš›ã«Profileã‚’ã©ã†æŒ‡å®šã™ã‚‹ã‹ - æ—¥ã€…å¸¸ã€…
å°Žå…¥ SpringBootã§Profileã‚’ä½¿ç”¨ã™ã‚‹ã‚ˆã†ã«ãªã‚‹ã¨ã€ä½•ã‹ã®profileã‚’æŒ‡å®šã—ãªã„ã¨èµ·å‹•ã—ãªããªã‚‹ã‚ˆã†ãªæ§‹æˆã«ãªã‚ŠãŒã¡ã ã¨æ€ã„ã¾ã™ã€‚ ãŸã¨ãˆã° application-local.yml ã€ application-dev.yml ã€ application-prod.yml ãªã©ç’°å¢ƒã”ã¨ã®ãƒ—ãƒãƒ•ã‚¡ã‚¤ãƒ«ã‚’ç”¨æ„ã™ã‚‹å ´åˆã§ã™ã€‚ é–‹ç™ºåŠ¹çŽ‡ã‚’è€ƒãˆã‚Œã°Profileç„¡ã—ã§ã‚‚å‹•ä½œã™ã‚‹ã‚ˆã†ã«ã—ã¦ãŠãã®ãŒè‰¯ã„ã“ã¨ã‚‚ã‚ã‚‹ã®ã§ã™ãŒã€ãã‚Œã ã¨è¨å®šèª¤ã‚Šãªã©ã§æœ¬ç•ªç’°å¢ƒã§å‹•ä½œã—ã¦ã—ã¾ã†ãƒªã‚¹ã‚¯ãŒæ®‹ã‚Šã¾ã™ã€‚ ãŸã¨ãˆã°ç„¡å°ï¼ˆnot defaultï¼‰ã§ã¯H2ã§å‹•ä½œã™ã‚‹ã‚ˆã†ã«ã—ã¦ãŠã„ã¦ã€prod ã§å®Ÿéš›ã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã«æŽ¥ç¶šã™ã‚‹ã‚ˆã†ã«ä¸Šæ›¸ãã—ã¦ã„ãŸå ´åˆã€‚è¨å®šæ¼ã‚Œã‚„èª¤ã‚Šã§ä¸Šæ›¸ãã§ããªãã¦ã‚‚ã€ä¸€è¦‹æ£å¸¸ã«å‹•ä½œã—ã€å®Ÿã¯H2ã ã£ãŸâ€¦â€¦ãªã©ãŒè€ƒãˆã‚‰ã‚Œã¾ã™ã€‚ ã“ã®å•é¡Œã‚’æ¤œçŸ¥ã§ãã‚‹åˆ¥ã®ä»•çµ„ã¿ãŒã‚ã‚Œã°ç„¡å°ã‚’ä½¿ç”¨ã™ã‚‹ã®ã‚‚è‰¯ã„ã‹ã‚‚ã—ã‚Œ
damedog 2021/02/15
springboot

maven

development

é–‹ç™º

java

ãƒ“ãƒ«ãƒ‰ãƒ„ãƒ¼ãƒ«
ãƒªãƒ³ã‚¯
Spring Boot+Spring Sessionã§ã‚¹ã‚±ãƒ¼ãƒ©ãƒ–ãƒ«ãªã‚¹ãƒ†ãƒ¼ãƒˆãƒ•ãƒ«Webã‚¢ãƒ—ãƒªãŒç°¡å˜ã«ã¤ãã‚Œã‚‹ã‚ˆã€œ - Qiita
ä»Šå›žã¯ã€Spring Bootã¨Spring Sessionã‚’ä½¿ç”¨ã—ã¦ã‚¹ã‚±ãƒ¼ãƒ©ãƒ–ãƒ«ãªã‚¹ãƒ†ãƒ¼ãƒˆãƒ•ãƒ«Webã‚¢ãƒ—ãƒªï¼ˆHTTPã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚’ä½¿ã†Webã‚¢ãƒ—ãƒªï¼‰ã‚’ä½œã£ã¦ã¿ã‚‹ãžã€œ ã‚·ã‚¹ãƒ†ãƒ æ§‹æˆã®ã‚¤ãƒ¡ãƒ¼ã‚¸ ä»Šå›žã¯ãƒ»ãƒ»ãƒ» Webã‚µãƒ¼ãƒãƒ¼å…¼ãƒãƒ¼ãƒ‰ãƒãƒ©ãƒ³ã‚µãƒ¼ã¨ã—ã¦Nginx ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚µãƒ¼ãƒãƒ¼ã¨ã—ã¦Spring Boot(Embedded Tomcat) ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚¹ãƒˆã‚¢ã¨ã—ã¦KVS(Key Value Store)ã®æœ‰åã©ã“ã‚ã§ã‚ã‚‹Redis ã‚’ä½¿ç”¨ã—ã€Nginxã€Spring Boot(Embedded Tomcat)ã€Redisã‚’ãã‚Œãžã‚ŒDockerã‚³ãƒ³ãƒ†ãƒŠä¸Šã§å‹•ã‹ã—ã¾ã™ã€‚ ãªãŠã€ä»Šå›žã¯Redisã¯ï¼‘å°æ§‹æˆã«ã•ã›ã¦ã‚‚ã‚‰ã„ã¾ã™ã€‚å®Ÿéš›ã®ã‚·ã‚¹ãƒ†ãƒ ã‚’ï¼‘å°æ§‹æˆã§å‹•ã‹ã™ã“ã¨ã¯ã‚ã‚Šå¾—ã¾ã›ã‚“ãŒãƒ»ãƒ»ãƒ» ï¼ˆMaster/Slaveæ§‹æˆã«ã‚ˆã‚‹ã‚¯ãƒ©ã‚¹ã‚¿åŒ–ã¯æ¬¡å›žã®å®¿é¡Œã¨ã„ã†ã“ã¨ã§ãƒ»ãƒ»ãƒ»ï¼‰ ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯æ§‹æˆ Spring B
damedog 2020/12/21
spring

ã‚»ãƒƒã‚·ãƒ§ãƒ³

Spring Boot

springboot

java

web
ãƒªãƒ³ã‚¯
OpenSSLã§ç”Ÿæˆã—ãŸRSAéµã‚’Javaã§èªã¿è¾¼ã‚€ - unhurried
ä»¥å‰ã«ã¯ã¾ã£ãŸã“ã¨ãŒã‚ã£ãŸã®ã§ã€ç°¡å˜ã«ã¾ã¨ã‚ã¦ãŠãã¾ã™ã€‚ OpenSSLã§RSAéµã‚’ç”Ÿæˆã—ãŸã¨ãã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã§ã‚ã‚‹PEMå½¢å¼ã¯ã€Javaã®æ¨™æº–APIã§ã¯èªã¿å–ã‚Œãªã„ãŸã‚ã€DERå½¢å¼ã«å¤‰æ›ã—ã¦ãŠãå¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚ OpenSSLã§å…¬é–‹éµãƒ»ç§˜å¯†éµã‚’ç”Ÿæˆã™ã‚‹ # PEMå½¢å¼ã®ç§˜å¯†éµã‚’ç”Ÿæˆã™ã‚‹ openssl genrsa -out private_key.pem 1024 # PKC8/DERå½¢å¼ã«å¤‰æ›ã™ã‚‹ openssl pkcs8 -in private_key.pem -topk8 -nocrypt -outform DER -out private_key.pk8 # DERå½¢å¼ã®å…¬é–‹éµã‚’ç”Ÿæˆã™ã‚‹ openssl rsa -in private_key.pem -pubout -outform DER -out public_key.der Javaã§å…¬é–‹éµãƒ»ç§˜å¯†éµã‚’èªã¿è¾¼
damedog 2020/10/28
â€œopenssl genrsa -out private_key.pem 1024â€

java

ssl
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damedog 2020/09/22
java

ãƒ¡ãƒ¢ãƒª

gc

ã‚ãƒ£ãƒƒã‚·ãƒ¥

cache
ãƒªãƒ³ã‚¯
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è¦ç´„ æŠ€è¡“çš„ãªè©±ã ã‘æ•™ãˆã¦ã€ã¨ã„ã†æ–¹ã®ãŸã‚ã«å…ˆã«çµè«–ã ã‘æ›¸ã„ã¦ãŠãã¾ã™ã¨ã€PostgreSQLã¯ã‚¯ã‚¨ãƒªã‚’å®Ÿè¡Œã—ãŸæ™‚ç‚¹ã§å…¨ãƒ¬ã‚³ãƒ¼ãƒ‰ã®æƒ…å ±ã‚’ä¸€æ°—ã«èªã‚“ã§ãã¦ãƒ’ãƒ¼ãƒ—ã‚’åŸ‹ã‚ã¦ã—ã¾ã†å ´åˆãŒã‚ã‚‹ã€ã¨ã„ã†ã“ã¨è©±ã§ã™ã€‚ ãŸã¨ãˆã°ã€ResultSet#nextãƒ¡ã‚½ãƒƒãƒ‰ã‚’ä½¿ã„ãªãŒã‚‰å‡¦ç†ã‚’å›žã™ã‚ˆã†ãªã‚³ãƒ¼ãƒ‰ã‚’æ›¸ã„ã¦ã€å°‘ãªã„ãƒ’ãƒ¼ãƒ—ã§ã‚‚å‡¦ç†ã§ãã‚‹ã‚ˆã†ã«ã™ã‚‹ã®ã¯å¸¸å¥—æ‰‹æ®µã ã¨æ€ã„ã¾ã™ãŒã€ãã†ã„ã†ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ã„ã¦ã„ã¦ã‚‚ä¸€æ°—ã«ãƒ’ãƒ¼ãƒ—ã‚’æ¶ˆè²»ã—ã¦ã—ã¾ã†ã“ã¨ãŒã‚ã‚‹ã®ã§ã™ã€‚è©³ã—ãã¯ã“ã®ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆã‚’è¦‹ã¦ãã ã•ã„ã€‚ https://jdbc.postgresql.org/documentation/head/query.html#query-with-cursor ã“ã¨ã®ç™ºç«¯ ã¡ã‚‡ã£ã¨ä»•äº‹ã§Java + jOOQ + PostgreSQLã§ã€DBã®ãƒ‡ãƒ¼ã‚¿ã‚’é›†è¨ˆã™ã‚‹ã‚ˆã†ãªãƒãƒƒãƒå‡¦ç†ã‚’æ›¸ã„ã¦ã¾ã—ã¦ã€ã‚‚ã¡ã‚ã‚“ä¿ºæ§˜ã®æ›¸ã„ãŸã‚³ãƒ¼ãƒ‰ã«ãƒã‚°ãªã‚“ã¦ã‚ã‚‹
damedog 2020/08/13
spring

postgresql

java

DB
ãƒªãƒ³ã‚¯
å¤šç›¸æ€§ã¨ã‚¸ã‚§ãƒãƒªã‚¯ã‚¹ - Qiita
è‡ªåˆ†ã®ç†è§£ã®ã¾ã¨ã‚ã§ã™ã€‚ãƒ™ãƒ¼ã‚¹ã¯Wikipediaã§ã™ã€‚ï¼ˆWikipediaæ—¥æœ¬èªžãƒšãƒ¼ã‚¸ã®è¨˜è¿°ã¯2017/3ã«è‹±èªžãƒšãƒ¼ã‚¸ã®è¨˜è¿°ã‚’ã‚‚ã¨ã«æ‹¡å……ã•ã‚Œã¦ã„ã¾ã™ã€‚ï¼‰è«–æ–‡ã‚„æ›¸ç±ã‚’å‚ç…§ãƒ»å¼•ç”¨ã—ã¦ã‚‹ã‚ã‘ã§ã¯ãªã„ã®ã§ã€ãŸã¶ã‚“çªã£è¾¼ã¿ã©ã“ã‚ãŒã‚ã‚‹ã®ã§ã¯ãªã„ã‹ã¨æ€ã„ã¾ã™ã€‚ã†ã®ã¿ã«ã—ãªã„ã‚ˆã†ã«ã€‚ å¤šç›¸æ€§ ã–ã£ãã‚Š3ã¤ã«åˆ†é¡žã•ã‚Œã¦ã„ã¾ã™ã€‚ ã‚¢ãƒ‰ãƒ›ãƒƒã‚¯å¤šç›¸ ã‚µãƒ–ã‚¿ã‚¤ãƒ”ãƒ³ã‚°å¤šç›¸ ãƒ‘ãƒ©ãƒ¡ãƒˆãƒªãƒƒã‚¯å¤šç›¸ __ã‚¢ãƒ‰ãƒ›ãƒƒã‚¯å¤šç›¸__ã¯ã€åž‹ã‚·ã‚¹ãƒ†ãƒ ä¸Šã¯é–¢é€£æ€§ã®ãªã„è¤‡æ•°ã®åž‹ã‚’å¼•æ•°ã‚„æˆ»ã‚Šå€¤ã«ã¨ã‚‹ã“ã¨ãŒã§ãã‚‹é–¢æ•°ï¼ˆãƒ¡ã‚½ãƒƒãƒ‰ã‚„æ¼”ç®—åã‚’å«ã‚€ï¼‰ã®æ€§è³ªã§ã™ã€‚æ™®é€šã¯å¼•æ•°ã‚„æˆ»ã‚Šå€¤ã®åž‹ã«å¿œã˜ã¦ç•°ãªã‚‹å®Ÿè£…ã«ãƒ‡ã‚£ã‚¹ãƒ‘ãƒƒãƒã•ã‚Œã¾ã™ã€‚Javaã§è¨€ã†ã¨ã‚ªãƒ¼ãƒãƒ¼ãƒãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã§ã™ã€‚Javaã®ã‚ªãƒ¼ãƒãƒ¼ãƒãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã ã¨ã€å¤šç›¸æ€§ã‚’ä¿ã£ãŸã¾ã¾ç¬¬ä¸€ç´šã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¨ã—ã¦æ‰±ã†ã“ã¨ã¯ã§ãã¾ã›ã‚“ï¼ˆã‚ªãƒ¼ãƒãƒ¼ãƒãƒ¼ãƒ‰ã•ã‚ŒãŸãƒ¡ã‚½ãƒƒãƒ‰ã®å‚ç…§ã‚’é–¢æ•°ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹åž‹ã®å¤‰æ•°ã«ä»£å…¥ã—ã‚ˆã†ã¨ã™ã‚‹ã¨ã€ã
damedog 2020/08/12
java

qiita

type

generics

Polymorphism
ãƒªãƒ³ã‚¯
SpringBootã®@RestControllerã§ä¾‹å¤–å‡¦ç†ã‚’ã™ã‚‹ - Qiita
package com.example.sample; import org.springframework.http.HttpStatus; import org.springframework.http.ResponseEntity; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.RestControllerAdvice; import org.springframework.web.context.request.WebRequest; import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHan
damedog 2020/08/07
springboot

spring

java

errorhandling

exception
ãƒªãƒ³ã‚¯
ç¬¬3å›žï¼šSpring Security 5ã§ã‚µãƒãƒ¼ãƒˆã•ã‚ŒãŸOAuth 2.0 Loginã®å‡¦ç†ã®æµã‚Œã‚’(æ·±ã)ç†è§£ã™ã‚‹ - Qiita
å‰å›žã€ŒSpring Security 5ã§ã‚µãƒãƒ¼ãƒˆã•ã‚Œã‚‹OAuth 2.0 Loginã®å¤§ã¾ã‹ãªå‡¦ç†ã®æµã‚Œã‚’ç†è§£ã™ã‚‹ã€ã§å¤§ã¾ã‹ãªå‡¦ç†ã®æµã‚Œã‚’ç´¹ä»‹ã—ãŸã®ã§ã€ãã‚Œã‚‰ã‚’ã•ã‚‰ã«ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒ€ã‚¦ãƒ³ã—ãŸå‡¦ç†ã®æµã‚Œãªã©ã‚’ã¿ã¦ã„ããŸã„ã¨æ€ã„ã¾ã™ã€‚ å‰æãƒãƒ¼ã‚¸ãƒ§ãƒ³ Spring Boot 2.0.0.M7 Spring Security 5.0.0.RELEASE èªå¯è¦æ±‚ ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆAPã‹ã‚‰ãƒ—ãƒãƒã‚¤ãƒ€ã®èªå¯ç”»é¢ã‚’è¡¨ç¤ºï¼ˆï¼æ£ç¢ºã«ã¯ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰ãƒ—ãƒãƒã‚¤ãƒ€ã¸ãƒªãƒ€ã‚¤ãƒ¬ã‚¯ãƒˆï¼‰ã™ã‚‹æ™‚ã®å‡¦ç†ãƒ•ãƒãƒ¼ã‚’ã¿ã¦ã„ãã¾ã™ã€‚å‰å›žç´¹ä»‹ã—ãŸå›³ã ã¨ã€èµ¤ç·šã§å›²ã‚“ã ã¨ã“ã‚ãŒã“ã“ã§ã®èª¬æ˜Žå¯¾è±¡ã«ãªã‚Šã¾ã™ã€‚ èªå¯è¦æ±‚(èªå¯ç”»é¢è¡¨ç¤ºè¦æ±‚)ãŒè¡Œã‚ã‚Œã‚‹ã¨ã€OAuth2AuthorizationRequestRedirectFilterã‚’èµ·ç‚¹ã¨ã—ã¦ã€ClientRegistrationRepositoryã€AuthorizationRequestRep
damedog 2020/07/20
oauth

security

spring

qiita

OAuth2.0

Spring Security

oauth2

authentication

java
ãƒªãƒ³ã‚¯
Spring MVC(+ Spring Boot) ã«ãŠã‘ã‚‹404æ™‚ã®å‹•ã | Javaå¥½ã
é™çš„ãƒªã‚½ãƒ¼ã‚¹ã®ã‹ã‚‰ã¿ãŒã‚ã‚‹ã®ã§ã€404ã«ãªã‚‹å ´åˆã®å‹•ä½œãŒè¨å®šã«ã‚ˆã‚Šå¤‰ã‚ã‚‹ã€‚çµå±€ã¯404ãƒšãƒ¼ã‚¸ã‚’è¡¨ç¤ºã—ã‚ˆã†ã¨ã™ã‚‹ãŒã€è¨å®šã•ã‚Œã‚‹ä¾‹å¤–ãŒç•°ãªã£ãŸã‚Šã™ã‚‹ã€‚ 404ç”¨ã®ãƒšãƒ¼ã‚¸ã¯ï½¢resources/templates/error/404.htmlï½£ã‚ã‚‹ã„ã¯ï½¢resources/public/error/404.htmlï½£ãªã©ã‚’è¨å®šã“ã¨ã§ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã‹ã‚‰å¤‰ãˆã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚
damedog 2020/05/18
spring

java

MVC

springboot

Spring MVC

Spring Boot
ãƒªãƒ³ã‚¯
å…¥åŠ›ãƒã‚§ãƒƒã‚¯ç”¨ç‹¬è‡ªã‚¢ãƒŽãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ã‚’@Patternã‚’å†åˆ©ç”¨ã—ã¦ä½œã‚‹ã€‚ï¼STS ï¼‹Spring Bootï¼‹thymeleafã€€ - SE_BOKUã®ã¾ã¨ã‚ãƒŽãƒ¼ãƒˆçš„ãƒ–ãƒã‚°
ä»Šå›žã¯@Patternã§æŒ‡å®šã™ã‚‹æ£è¦è¡¨ç¾ã‚’ä½¿ã£ã¦ã€ã‚ã‹ã‚Šã‚„ã™ã„åå‰ã®ç‹¬è‡ªå…¥åŠ›ãƒã‚§ãƒƒã‚¯ç”¨ã‚¢ãƒŽãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ã‚’ä½œã£ã¦ã¿ã¾ã™ã€‚ ãªãŠã€STS3(3.9.6)ï¼‹SpringBoot2.0ï¼‹tymeleaf3.0è¿„å‹•ä½œç¢ºèªã—ã¦ã„ã¾ã™ã€‚ @Patternã‚’ä½¿ã†æ–¹æ³•ã«ã¯æ¬ ç‚¹ãŒã‚ã‚‹ Spring Boot ï¼‹thymeleafã®å…¥åŠ›ãƒã‚§ãƒƒã‚¯ã§ã¯ã€@Patternã‚’ä½¿ãˆã°ã€å¤§æŠµã®ã“ã¨ãŒã§ãã‚‹ã®ã§ã™ãŒã€ã“ã®ã‚„ã‚Šæ–¹ã«ã¯ã¡ã‚‡ã£ã¨æ¬ ç‚¹ãŒã‚ã‚Šã¾ã™ã€‚ ãã‚Œã¯ã€ã‚ã‹ã‚Šã¥ã‚‰ã„ã“ã¨ã§ã™ã€‚ ã“ã‚“ãªæ„Ÿã˜ã®è¨˜è¿°ãŒã€ï¼‘ç®‡æ‰€ãªã‚‰ã¨ã‚‚ã‹ãã€ãŸãã•ã‚“ã‚ã‚‹ã¨ã€ã¡ã‚‡ã£ã¨å«Œã§ã™ã€‚ @Pattern(regexp = "^(https?|ftp)(:\\/\\/[-_.!~*\\'()a-zA-Z0-9;\\/?:\\@&=+\\$,%#]+)$") ã‚„ã£ã±ã‚Šã€@UrlValidã€€ã¨ã‹ã€€@Em ailValidã€€ã¨ã‹ã®ã‚ã‹ã‚Šã‚„ã™ã„åå‰ã®ã‚¢ãƒŽãƒ†ãƒ¼ã‚·ãƒ§ãƒ³ã‚’
damedog 2020/04/27
java

bean validation

Validation
ãƒªãƒ³ã‚¯
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