Backend Development 5 min read

Must‑Read Java 21 & Spring Boot 3.2 Resources for the Lunar New Year

Celebrating the Lunar New Year, this roundup shares essential Java 21 updates, Spring Boot 3.2 enhancements, domestic open‑source innovations, and other hand‑picked tools and articles, providing developers with quick links to explore new APIs, performance improvements, and cutting‑edge Java ecosystem resources.

Java Architecture Diary
Java Architecture Diary
Java Architecture Diary
Must‑Read Java 21 & Spring Boot 3.2 Resources for the Lunar New Year

Street‑side shops are closing for the New Year; as seasoned workers we still work through New Year's Eve. Wishing everyone a prosperous Year of the Dragon!

Java21

Java21 LTS version released, detailed API changes summary – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489192&idx=1&sn=b2bbb4aa44a12573b582487695873203&scene=21#wechat_redirect

Translation: JDK 21 – GC gets better! – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489509&idx=1&sn=c8ed24734fa8a52aea89884944cd6c9d&scene=21#wechat_redirect

Performance test shows Java21 virtual threads are truly strong! – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489276&idx=1&sn=7d8837ea79a1db969090739ed3f2637a&scene=21#wechat_redirect

Good news for the waiting crowd, Java21 is here – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489208&idx=1&sn=69ff4a9891b53d83e71e4f8585dee105&scene=21#wechat_redirect

10 examples to master Java 11 HttpClient – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257488447&idx=1&sn=9db792ee9d383630124fc309b80508ba&scene=21#wechat_redirect

Using Java 11 HttpClient to send/receive WebSocket messages – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257488456&idx=1&sn=0c80bd0525b5206978dd5ed25e988dea&scene=21#wechat_redirect

Spring boot 3.2

SpringBoot 3.2 new features, startup speed increased tenfold – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489385&idx=1&sn=e6da798ec6d5106f0c8f74a16af2f872&scene=21#wechat_redirect

Eliminate RestTemplate, Spring builds its own wheel – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489093&idx=1&sn=b6957089dd40ad253f7656aa2206dac1&scene=21#wechat_redirect

Eliminate JdbcTemplate, Spring builds its own wheel – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489110&idx=1&sn=5fe9156efe1ac0ab8d2868678ea32358&scene=21#wechat_redirect

SpringBoot 2 series discontinued, where do Java8 users go? – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489368&idx=1&sn=9cf43c4493dc9fa78c764b5e33af6ed1&scene=21#wechat_redirect

Domestic Innovation (国产信创)

PIGX + JDK17 + SpringBoot 3 ecosystem version released – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489195&idx=1&sn=25f3eccab34c11e49ca2c4a32e027423&scene=21#wechat_redirect

Smart‑servlet domestic open‑source “tomcat” – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257488924&idx=1&sn=09f3f04cabaa4d36217d724740674a8e&scene=21#wechat_redirect

Domestic open‑source database based on Java, ten times faster than MySQL – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489193&idx=1&sn=77095f23c10e3b0c68f4ff8a802902fd&scene=21#wechat_redirect

Ndd (Notepad--) is really great! – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489459&idx=1&sn=02dcff3ac5dff3410cb26ac7564265d7&scene=21#wechat_redirect

Cold senior developer's series of Nacos plugins for domestic innovation:

https://github.com/pig-mesh/nacos-datasource-plugin-pg

https://github.com/pig-mesh/nacos-datasource-plugin-dm8

https://github.com/pig-mesh/nacos-datasource-plugin-kingbase

https://github.com/pig-mesh/nacos-datasource-plugin-shentong

https://github.com/pig-mesh/nacos-datasource-plugin-highgo

Other Recommendations

Wow, the “C drive killer” is actually the JetBrains full suite – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489329&idx=1&sn=4682b1c2113d518cd70096b6472913d3&scene=21#wechat_redirect

IDEA Profiler quickly diagnoses CPU and memory issues – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257488799&idx=1&sn=12a482cd31719745f9207a7d2ed70575&scene=21#wechat_redirect

Little‑known Jackson Pointer syntax, super useful! – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489406&idx=1&sn=056bb619b86c092c8ee8dc8febaaeff7&scene=21#wechat_redirect

JsonFlow: innovative Chinese‑style workflow engine, unlocking new productivity – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257488900&idx=1&sn=f5da29e59d598402bd9714f0d47e8771&scene=21#wechat_redirect

mica-auto lets your starter seamlessly support Spring boot 3.x configuration – https://mp.weixin.qq.com/s?__biz=MjM5MzEwODY4Mw==∣=2257489421&idx=1&sn=7da1a62d2eaa8fbb849023884a2137f6&scene=21#wechat_redirect

JavaBackend DevelopmentNacosSpring Bootopen-sourceJava 21
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