/java-springboot-example

Primary LanguageJava

Springboot WebMVC Sample Project

Description

Made to figure out how to use java, springboot mvc.

Environment

  • java 11
  • intellij ultimate
  • windows 10
  • docker desktop
  • springboot 2.5.8
  • gradle 7.3
  • mysql 8.0.28

Sampling What?

  • JPA
  • QueryDSL
  • SQL with META-INF/orm.xml
  • AOP with Annotation
  • Handle static resource
  • Basic Api Response
  • ThreadLocal
  • Handle custom exception with @ExceptionHandler
  • Log4j2
  • Utils
  • Test with TestContainers
  • Docker build 
    docker build -t {imageName}:{version} .
docker run -d -p 8080:8080 {imageName}:{version}
docker ps
  • Etc...

Tips

  • if you want to set max heap size and min heap size 
    # if using intellij, open edit configuration and set VM Option
# default is 1/4 of the physical memory. (default min is 1/64)
# if your pc memory is 32GB, default xms is 8GB
-Xmx512m 
-Xms256m
  • if you check heap size 
    # windows
java -XX:+PrintFlagsFinal -version | select-string -pattern heapsize
# linux
java -XX:+PrintFlagsFinal -version | grep heapsize
  • if you add java HttpClient logging option 
    java -Djdk.httpclient.HttpClient.log=errors,requests,headers,frames[:control:data:window:all],content,ssl,trace,channel,all -jar