SpringBoot 多环境配置与打包

配置

1. resources中新增 dev开发、test测试、prod生产三个文件：
   

application.yml中是公共配置。

手动修改

此时便可以通过手动修改active值切换环境。

Maven执行

2. 修改application.yml中active的值。
   
3. pom.xml中新增resources、profiles

<project>
    //省略
    <dependencies>
      ...
    </dependencies>

    <build>
        <plugins>
        ...
        </plugins>
        <!--打包过滤文件-->
        <resources>
            <resource>
                <!-- 指定配置文件所在的resource目录 -->
                <directory>src/main/resources</directory>
                <includes>
                    <include>application.yml</include>
                    <include>application-${environment}.yml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

    <!--多环境打包-->
    <profiles>
        <profile>
            <id>dev</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <environment>dev</environment>
            </properties>
        </profile>
        <profile>
            <id>test</id>
            <properties>
                <environment>test</environment>
            </properties>
        </profile>
        <profile>
            <id>prod</id>
            <properties>
                <environment>prod</environment>
            </properties>
        </profile>
    </profiles>
</project>

activeByDefault 设置为默认，environment环境名称

4. 点击Reload，会出现Profile，根据选择切换环境，完成。
   
   5.命令行打包

mvn clean install -P dev
mvn clean install -P test
mvn clean install -P prod

延伸

获取服务端口

问题

1. 无法使用@符号
   
   解决：在pom.xml的pluns中新增如下，再Reload Maven

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <configuration>
         <delimiters>@</delimiters>
         <useDefaultDelimiters>false</useDefaultDelimiters>
    </configuration>
</plugin>

代码

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>test2</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>test2</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
        <skipTests>true</skipTests>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <configuration>
                    <delimiters>@</delimiters>
                    <useDefaultDelimiters>false</useDefaultDelimiters>
                </configuration>
            </plugin>
        </plugins>
        <!--打包过滤文件-->
        <resources>
            <resource>
                <!-- 指定配置文件所在的resource目录 -->
                <directory>src/main/resources</directory>
                <includes>
                    <include>application.yml</include>
                    <include>application-${environment}.yml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>

    <!--多配置打包-->
    <profiles>
        <profile>
            <id>dev</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <environment>dev</environment>
            </properties>
        </profile>
        <profile>
            <id>test</id>
            <properties>
                <environment>test</environment>
            </properties>
        </profile>
        <profile>
            <id>prod</id>
            <properties>
                <environment>prod</environment>
            </properties>
        </profile>
    </profiles>
</project>

application.yml

spring:
  profiles:
    active: @environment@
server:
  servlet:
    context-path: /h
logging:
  level:
    root: info
  file:
    name: ./logs/test.log
#mybatis的相关配置
mybatis:
  #mapper配置文件
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.example.test2.entity
  #开启驼峰命名
  configuration:
    map-underscore-to-camel-case: true

application-dev.yml，方便测试test与prod只改了端口

server:
  port: 8081
spring:
  datasource:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://ip:3306/test?characterEncoding=utf-8&useSSL=false
      username: root
      password: admin