2023-01-27-TIL Today I Learned Google Docs Real Time Collaborative Editing https://www.linkedin.com/pulse/google-docs-high-level-system-design-murat-atak https://srijancse.medium.com/how-re...

2023-01-26-TIL Today I Learned Helper Class https://www.geeksforgeeks.org/java-helperclass/ https://www.tutorialspoint.com/how-to-create-your-own-helper-class-in-java https://stackoverflo...

2023-01-18-TIL Today I Learned 로그 보관 주기 https://itwiki.kr/w/ISMS-P_%EC%9D%B8%EC%A6%9D_%EA%B8%B0%EC%A4%802.9.4.%EB%A1%9C%EA%B7%B8%EB%B0%8F_%EC%A0%91%EC%86%8D%EA%B8%B0%EB%A1%9D_%EA%B4%80%EB%A6%...

2023-01-17-TIL Today I Learned Spring Security https://kimchanjung.github.io/programming/2020/07/02/spring-security-02/ https://mangkyu.tistory.com/77 AWS Lambda vs Batch 팀원 중 한 명이 모든 배치...

2023-01-16-TIL Today I Learned TinyMCE and Spring Boot https://catchdream.tistory.com/152 https://blog.csdn.net/haha_201510/article/details/107110473?spm=a2c6h.12873639.article-detail.7.419...

2023-01-15-TIL Today I Learned Transaction Manager https://p829911.tistory.com/17 https://docs.spring.io/spring-framework/docs/current/reference/html/data-access.html#spring-data-tier htt...

2023-01-13-TIL Today I Learned JPA Association Pros and Cons https://stackoverflow.com/questions/17928152/hibernate-pros-cons-of-association-mapping-without-foreginkey JPA Hypersistence Opt...

2023-01-12-TIL.md Today I Learned How to Get HttpServletRequest in Any Methods in Spring https://stackoverflow.com/questions/559155/how-do-i-get-a-httpservletrequest-in-my-spring-beans http...

2023-01-11-TIL Today I Learned Docker + Wasm https://www.docker.com/blog/docker-wasm-technical-preview/ https://docs.docker.com/desktop/wasm/ WebAssembly https://tecoble.techcourse.co...

2023-01-10-TIL Today I Learned Get Empty String When Null Objects.toString(id, ""); Optional.ofNullable(id).orElse(""); StringUtils.defaultString(str).replaceAll("^(?i)null$", ""); Java 8 이상에서...