一、升级项目
1.1 POM文件
最近很多小伙伴私信我要我出一个springboot搭配jdk21的教程,应粉丝要求,我去spring官网找到了springboot和jdk版本的是配图,供大家参考!之前博主写的springboot 3.0.0 搭配jdk20不知道各位小伙伴们有没有看过呢?现在jdk21出来了,springboot 3.0.0的版本已经不够用了,需要升级到springboot 3.1.x系列的版本才可以与之匹配。
<modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>3.1.0</version><relativePath/></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><maven.compiler.encoding>UTF-8</maven.compiler.encoding><maven.compiler.source>21</maven.compiler.source><maven.compiler.target>21</maven.compiler.target><maven.compiler.compilerVersion>21</maven.compiler.compilerVersion><java.version>21</java.version><skipTests>true</skipTests></properties>
1.2 Lombok问题
如果你的项目中有使用Lombok,并且版本呢是1.18.28,可能会出现这个问题,这是因为此版本并不支持jdk21,需要升级到1.18.30。
java:java.lang.NoSuchFieldError:Classcom.sun.tools.javac.tree.JCTree$JCImport does not have member field 'com.sun.tools.javac.tree.JCTree qualid'
<dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.30</version><scope>provided</scope></dependency>
二、制作docker镜像
2.1 dockerfile文件
FROM alpine:3.15
ARG version=21.0.0.34.1
# Please note that the THIRD-PARTY-LICENSE could be out of date if the base image has been updated recently.
# The Corretto team will update this file but you may see a few days' delay.
RUN wget -O /THIRD-PARTY-LICENSES-20200824.tar.gz https://corretto.aws/downloads/resources/licenses/alpine/THIRD-PARTY-LICENSES-20200824.tar.gz && \
echo "82f3e50e71b2aee21321b2b33de372feed5befad6ef2196ddec92311bc09becb /THIRD-PARTY-LICENSES-20200824.tar.gz" | sha256sum -c - && \
tar x -ovzf THIRD-PARTY-LICENSES-20200824.tar.gz && \
rm -rf THIRD-PARTY-LICENSES-20200824.tar.gz && \
wget -O /etc/apk/keys/amazoncorretto.rsa.pub https://apk.corretto.aws/amazoncorretto.rsa.pub && \
SHA_SUM="6cfdf08be09f32ca298e2d5bd4a359ee2b275765c09b56d514624bf831eafb91" && \
echo "${SHA_SUM} /etc/apk/keys/amazoncorretto.rsa.pub" | sha256sum -c - && \
echo "https://apk.corretto.aws" >> /etc/apk/repositories && \
apk add --no-cache amazon-corretto-21=$version-r0 && \
rm -rf /usr/lib/jvm/java-21-amazon-corretto/lib/src.zip
ENV LANG C.UTF-8
ENV JAVA_HOME=/usr/lib/jvm/default-jvm
ENV PATH=$PATH:/usr/lib/jvm/default-jvm/bin
2.2 构建镜像命令
docker build -t openjdk:21-jdk-alpine .
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