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使用Dockerfile构建项目docker镜像
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‎pom_pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.answer</groupId>
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<artifactId>springboot-mybatis-web</artifactId>
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<version>1.0.0</version>
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<packaging>jar</packaging>
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<name>springboot-mybatis-web</name>
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<description>Demo project for Spring Boot</description>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>2.0.5.RELEASE</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.mybatis.spring.boot</groupId>
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<artifactId>mybatis-spring-boot-starter</artifactId>
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<version>1.3.2</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<!-- Web for Jsp need start -->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>jstl</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-tomcat</artifactId>
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</dependency>
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<dependency>
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<groupId>org.apache.tomcat.embed</groupId>
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<artifactId>tomcat-embed-jasper</artifactId>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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</dependency>
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<!-- Web for Jsp need end -->
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<version>1.4.2.RELEASE</version>
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</plugin>
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<!-- Docker Maven插件 -->
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<plugin>
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<groupId>com.spotify</groupId>
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<artifactId>docker-maven-plugin</artifactId>
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<!-- Docker镜像相关的配置信息 -->
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<configuration>
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<!-- 镜像名, 这里用工程名 -->
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<imageName>${project.artifactId}</imageName>
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<!-- 镜像版本号, 可设置多个, 如果不是设为latest, 则会生成两个镜像, 即设置的版本号和latest -->
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<imageTags>
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<imageTag>latest</imageTag>
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<!--<imageTag>${project.version}</imageTag>-->
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</imageTags>
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<!-- 镜像的FROM, 使用java官方镜像 | 构建镜像时需要的基础镜像, 类似于DockerFile的From -->
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<baseImage>java:8</baseImage>
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<!--该镜像的容器启动后, 直接运行spring boot工程 | 容器启动时执行的命令 -->
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<entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
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<!--<volumes>
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<volume>/home</volume>
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</volumes>
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-->
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<!-- 设置环境变量 | 类似于DockerDile的ENV -->
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<env>
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<MYSQL_IP>119.23.XXX.XXX</MYSQL_IP>
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<MYSQL_PORT>3306</MYSQL_PORT>
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<MYSQL_DB>answer</MYSQL_DB>
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<MYSQL_UNAME>root</MYSQL_UNAME>
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<MYSQL_PASSWD>123456</MYSQL_PASSWD>
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</env>
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<!-- 设定容器向外部暴露的端口 -->
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<exposes>
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<expose>8088</expose>
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</exposes>
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<!-- 这里是复制 jar 包到 docker 容器指定目录配置, 相当于DockerFile的ADD -->
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<resources>
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<resource>
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<targetPath>/</targetPath>
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<directory>${project.build.directory}</directory>
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<include>${project.build.finalName}.jar</include>
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</resource>
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</resources>
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</configuration>
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</plugin>
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</plugins>
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<!-- 解决打包时访问不了JSP问题 -->
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<resources>
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<!-- 打包时将jsp文件拷贝到META-INF目录下-->
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<resource>
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<!-- 指定resources插件处理哪个目录下的资源文件 -->
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<directory>src/main/webapp</directory>
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<!--注意此次必须要放在此目录下才能被访问到-->
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<targetPath>META-INF/resources</targetPath>
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<includes>
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<include>**/**</include>
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</includes>
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</resource>
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<resource>
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<directory>src/main/resources</directory>
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<includes>
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<include>**/**</include>
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</includes>
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<filtering>false</filtering>
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</resource>
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<resource>
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<directory>src/main/java</directory>
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<excludes>
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<exclude>**/*.java</exclude>
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</excludes>
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</resource>
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</resources>
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</build>
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</project>

‎src/main/docker/Dockerfile

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FROM java:8
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ENV MYSQL_DB answer
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ENV MYSQL_IP 119.23.106.146
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ENV MYSQL_PASSWD 123456
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ENV MYSQL_PORT 3306
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ENV MYSQL_UNAME root
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ADD /springboot-mybatis-web-1.0.0.jar //
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EXPOSE 8888
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ENTRYPOINT ["java", "-jar", "/springboot-mybatis-web-1.0.0.jar"]
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VOLUME ["/root/answer/docker/data/", "/home"]

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