springboot 多环境配置（pom配置Profiles变量来，控制打包环境）

雨点打透心脏的1/2处 2023-09-28 22:59 42阅读 0赞

[https://wenku.baidu.com/view/2f531c3c68d97f192279168884868762caaebbd3.html][https_wenku.baidu.com_view_2f531c3c68d97f192279168884868762caaebbd3.html]

## 一、功能描述 ##

有些时候，一个项目须要适配多种开发环境，如数据库不一样（mysql、oracle、db2等）、如开发环境不一样（dev、pro、test）等不一样的环境须要指定不一样的配置。这种状况下，咱们就能够采用配置Profiles来控制。在启动的时候指定不一样的配置组合，maven进行build时会自动选择指定配置。  
![在这里插入图片描述][5313ee1e21dc469abcedeb0b5979f6a7.png]

## 二、具体配置及细节 ##

**1.首先配置在pom中配置Profiles配置**

<profiles>
            <profile>
                <id>mysql</id>
                <properties>
                    <spring.profiles.active>mysql</spring.profiles.active>
                </properties>
            </profile>
            <profile>
                <id>oracle</id>
                <properties>
                    <spring.profiles.active>oracle</spring.profiles.active>
                </properties>
            </profile>
            <profile>
                <id>db2</id>
                <properties>
                    <spring.profiles.active>db2</spring.profiles.active>
                </properties>
            </profile>
            <profile>
                <id>dev</id>
                <properties>
                    <profiles.active>dev</profiles.active>
                </properties>
            </profile>
            <profile>
                <id>prd</id>
                <properties>
                    <profiles.active>prd</profiles.active>
                </properties>
            </profile>
        </profiles>

springboot中application.yml 中能够引用pom中的变量properties属性，引用的方式 **@变量@**

mybatis:
      configuration:
        map-underscore-to-camel-case: true
        log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
      mapper-locations: [mybatis/**/**@spring.profiles.active@**/*Mapper.xml]
      type-aliases-package: com.*.*.domain.entity,com.*.*.system.entity

创建不一样环境的配置文件，并以目录的形式区分（固然也能够以不一样的开头命名区分）

> 如下是多环境配置的目录结构  
> ![在这里插入图片描述][4fe338f19ca94125b92015e023aa698b.png]  
> 如下是多数据库的配置，在每一个环境application中配置![在这里插入图片描述][a97ff98937ab43a39ddbd0b55612d865.png]

@Configuration
    public class DatasourceConfig{
        
        @Resource
        Environment env;
        @Bean
        @Profile(value="mysql")
        public DataSource mysql(){
        
            return dataSources("mysql");
        }
        @Bean
        @Profile(value="oracle")
        public DataSource oracle(){
        
            return dataSources("oracle");
        }
        @Bean
        @Profile(value="db2")
        public DataSource db2(){
        
            return dataSources("db2");
        }
        /**
         * 获取数据源
         * @param type （mysql,oracle,db2 ....）
         */
        public DataSource dataSources(String type) {
        
            String driverClassName = env.getProperty("mydatasource."+type+".driver-class-name");
            String url =  env.getProperty("mydatasource."+type+".url");
            String username =  env.getProperty("mydatasource."+type+".username");
            String password =  env.getProperty("mydatasource."+type+".password");
    
            DruidDataSource druidDataSource = new DruidDataSource();
            druidDataSource.setName(type);
            druidDataSource.setDriverClassName(driverClassName);
            druidDataSource.setUrl(url);
            druidDataSource.setUsername(username);
            druidDataSource.setPassword(password);
            //TODO .....
    
            return druidDataSource;
        }
    }

## 三、打包过滤 ##

资源过滤 pom.xml build标签下

<resources>
      <resource>
        <directory>src/main/resources</directory>
    
        <filtering>true/false</filtering>
        <includes><include></include></includes>
        <excludes><exclude></exclude></excludes>
      </resource>
    </resources>
    
    <resource>
    	<directory>src/main/resources</directory>
    	<excludes>
    		<exclude>config/</exclude>
    		<exclude>mybatis/</exclude>
    	</excludes>
    </resource>
    <resource>
    	<directory>src/main/resources/config/${
        package.environment}</directory>
    	<includes>
    		<include>config.properties</include>
    	</includes>
     </resource>
     <resource>
    	<directory>src/main/resources</directory>
    	<includes>
    		<include>mybatis/**/${
        spring.profiles.active}/**</include>
    	</includes>
     </resource>
    
    
     
     <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-jar-plugin</artifactId>
       <configuration>
         <excludes>
           <exclude>com/yuyi/imap/ServletInitializer.class</exclude>
         </excludes>
       </configuration>
     </plugin>

配置profiles 多环境打包过滤

<profiles>
            <profile>
                <id>mysql</id>
                <properties>
                    <spring.profiles.active>mysql</spring.profiles.active>
                    <project.packaging>jar</project.packaging>
                </properties>
                <dependencies>
                    <dependency>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-starter-quartz</artifactId>
                    </dependency>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.43</version>
                    </dependency>
                </dependencies>
                <build>
                    <plugins>
                        
                        <plugin>
                            <groupId>org.apache.maven.plugins</groupId>
                            <artifactId>maven-jar-plugin</artifactId>
                            <configuration>
                                <excludes>
                                    
                                    <exclude>com/yuyi/imap/oracle/*</exclude>
                                    <exclude>com/yuyi/imap/db2/*</exclude>
                                </excludes>
                            </configuration>
                        </plugin>
                    </plugins>
                </build>
            </profile>
    
            <profile>
                <id>oracle</id>
                <properties>
                    <spring.profiles.active>oracle</spring.profiles.active>
                    <project.packaging>war</project.packaging>
                </properties>
                <build>
                    <plugins>
                        
                        <plugin>
                            <groupId>org.apache.maven.plugins</groupId>
                            <artifactId>maven-war-plugin</artifactId>
                            <configuration>
                                <packagingExcludes>
                                    WEB-INF/classes/com/yuyi/imap/mysql/,
                                    WEB-INF/classes/com/yuyi/imap/db2/
                                </packagingExcludes>
                            </configuration>
                        </plugin>
                        
                        <plugin>
                            <groupId>org.apache.maven.plugins</groupId>
                            <artifactId>maven-jar-plugin</artifactId>
                            <configuration>
                                <excludes>
                                    
                                    <exclude>com/yuyi/imap/mysql/</exclude>
                                    
                                    <exclude>com/yuyi/imap/db2/*</exclude>
                                </excludes>
                            </configuration>
                        </plugin>
                    </plugins>
                </build>
            </profile>
        </profiles>

同一个接口，不一样的实现能够经过重名和注解实现![在这里插入图片描述][2ec58d4d828944749d8283404db18230.png]

> 同一个接口有两种实现，而且采用同一个命名，这样在启动的时候会报错（别名重复）因此须要将不用的目录给排除掉，不编译成class，这里采用idea  
> ![在这里插入图片描述][e4deb1cc86a246ab81491d7ec79120dc.png]  
> 这么作只会影响springboot启动的时候，打包的时候不受此影响。

打包时指定profile 就能够将不一样环境的资源文件和java代码以及jar排除掉，最小打包。

[https_wenku.baidu.com_view_2f531c3c68d97f192279168884868762caaebbd3.html]: https://wenku.baidu.com/view/2f531c3c68d97f192279168884868762caaebbd3.html
[5313ee1e21dc469abcedeb0b5979f6a7.png]: https://img-blog.csdnimg.cn/5313ee1e21dc469abcedeb0b5979f6a7.png
[4fe338f19ca94125b92015e023aa698b.png]: https://img-blog.csdnimg.cn/4fe338f19ca94125b92015e023aa698b.png
[a97ff98937ab43a39ddbd0b55612d865.png]: https://img-blog.csdnimg.cn/a97ff98937ab43a39ddbd0b55612d865.png
[2ec58d4d828944749d8283404db18230.png]: https://img-blog.csdnimg.cn/2ec58d4d828944749d8283404db18230.png
[e4deb1cc86a246ab81491d7ec79120dc.png]: https://img-blog.csdnimg.cn/e4deb1cc86a246ab81491d7ec79120dc.png