1、构建jar包
在build.gradle中添加
apply plugin: 'java'
apply plugin: 'idea'
jar {
String someString = ''
configurations.runtime.each { someString = someString + "lib/" + it.name+" "}
manifest {
attributes 'Main-Class': 'BingoApplication'
attributes 'Class-Path': someString
}
into('lib'){ //感觉没起作用,这里是添加到jar包的lib目录下
from configurations.runtime
}
}
build.gradle中配置打包jar的MANIFEST.MF的Class-Path是docker启动的时候寻找依赖的jar包路径(此时寻找容器lib目录下的依赖包)
然后点击gradle中的Tasks->build->jar RUN,生成jar包(在build/libs/目录下),如下图所示:
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsICM38FdsYkRGZkRG9lcvx2bjxiNx8VZ6l2cs0zaq1ENNRlW2ZkMMBjVtJWd0ckW65UbM5WOHJWa5kHT20ESjBjUIF2X0hXZ0xCMx81dvRWYoNHLrdEZwZ1Rh5WNXp1bwNjW1ZUba9VZwlHdssmch1mclRXY39CXldWYtlWPzNXZj9mcw1ycz9WL49zROBlL2AzN1ETMyADM2ATMxgTMwIzLc52YucWbp5GZzNmLn9Gbi1yZtl2Lc9CX6MHc0RHaiojIsJye.png)
2、Dockerfile 生成docker镜像
目录下的文件结构如下所示:
Dockerfile:
FROM centos
VOLUME /tmp
ADD jdk-8u191-linux-x64.tar.gz /usr/local/
ENV JAVA_HOME /usr/local/jdk1.8.0_191
ENV CLASSPATH $JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
ENV PATH $PATH:$JAVA_HOME/bin
COPY lib /lib
ADD portal-1.0.jar /portal.jar
EXPOSE 8082
ENTRYPOINT ["java","-jar","/portal.jar"]
重点在COPY lib /lib,将lib中的依赖包拷贝到容器lib目录下,供MANIFEST.MF中配置的路径能够找的到(源lib可以在build/libs/目录下找到)