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SpringBoot 打包编译时间

SpringBoot 打包编译时间

作者: JinYx | 来源:发表于2023-02-12 18:19 被阅读0次

    场景:Spring Boot 打 jar 包时,文件命名增加编译时间;以及在 application.yml 配置文件中拿到编译时间;

    • Apache Maven 3.8.2
    • Spring Boot 2.4.1

    一、maven.build.timestamp

    1、pom.xml

    <properties>
        <buildTime>${maven.build.timestamp}</buildTime>
        <maven.build.timestamp.format>yyyy-MM-dd HH:mm:ss</maven.build.timestamp.format>
    </properties>
    

    2、application.yml

    app:
      version: @project.version@
      buildTime: @buildTime@
    

      要在 application.yml 配置中获取到 pom.xml 中的属性,需要添加如下配置

    <build>
        <!-- jar 包命名格式 -->
        <finalName>${project.artifactId}-${version}-${buildTime}</finalName>
            
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>
    

      不过这种方式获取到的时间有时区问题,拿到的是 UTC 时间,无法指定时区,因此比中国晚 8 小时;为解决时区问题,可使用插件 buildnumber-maven-pluginbuild-helper-maven-plugin 获取编译时间

    二、buildnumber-maven-plugin

    1、pom.xml

    <build>
        <finalName>${project.artifactId}-${version}-${timestamp}</finalName>
        
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>buildnumber-maven-plugin</artifactId>
                <version>3.0.0</version>
                <configuration>
                    <timestampFormat>yyyy-MM-dd HH:mm:ss</timestampFormat>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>create-timestamp</goal>
                        </goals>
                    </execution>
                </executions>
                <inherited>false</inherited>
            </plugin>
        </plugins>
            
            
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>
    

    2、application.yml

    app:
      version: @project.version@
      buildTime: @timestamp@
    

    三、build-helper-maven-plugin

    1、pom.xml

    <build>
        <finalName>${project.artifactId}-${version}-${buildTime}</finalName>
        
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <id>timestamp-property</id>
                        <goals>
                            <goal>timestamp-property</goal>
                        </goals>
                        <configuration>
                            <name>buildTime</name>
                            <pattern>yyyyMMddHHmmss</pattern>
                            <locale>zh_CN</locale>
                            <timeZone>GMT+8</timeZone>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
            
            
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>
    

    2、application.yml

    app:
      version: @project.version@
      buildTime: @buildTime@
    

      ⚠️注意:finalName 标签配置的 jar 包名称格式中,如果存在冒号:时,虽然可以在 IDEA 中点击 Run 按钮启动,但是部署时使用 java -jar ***.jar 无法启动并报错:

    找不到或无法加载主类 org.springframework.boot.loader.JarLauncher

      上面三种方式通过 maven 打包之后在运行,都可以在 yml 配置中获取到编译的时间值;但是如果没打包,直接点击 Run 按钮启动 Spring Boot 程序;maven.build.timestamp 可以正常获取到时间,buildnumber-maven-plugin 的 timestamp 为空;而 build-helper-maven-plugin 直接报错:

    17:55:22.077 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
    org.yaml.snakeyaml.scanner.ScannerException: while scanning for the next token
    found character '@' that cannot start any token. (Do not use @ for indentation)
     in 'reader', line 23, column 14:
          buildTime: @buildTime@
                     ^
    

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