spring.datasource.url=jdbc:mysql://localhost:3306/devdb
spring.datasource.username=devuser
spring.datasource.password=devpass
spring.datasource.url=jdbc:mysql://localhost:3306/proddb
spring.datasource.username=produser
spring.datasource.password=prodpass

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
@Configuration
public class DataSourceConfig {
    @Bean
    @Profile("dev")
    public DataSource devDataSource() {
        // 配置開發(fā)環(huán)境的數(shù)據(jù)源
    }
    @Bean
    @Profile("prod")
    public DataSource prodDataSource() {
        // 配置生產(chǎn)環(huán)境的數(shù)據(jù)源
    }
}

resources/
├── application.yml                # 基礎(chǔ)配置
├── application-dev.yml            # 開發(fā)環(huán)境
├── application-staging.yml        # 預(yù)發(fā)環(huán)境
├── application-prod.yml           # 生產(chǎn)環(huán)境
└── application-aws.yml            # 云環(huán)境配置

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    hikari:
      connection-timeout: 30000
      maximum-pool-size: 20
logging:
  level:
    root: INFO

spring:
  profiles:
    include: local,debug  # 組合多個(gè)Profile
  datasource:
    url: jdbc:mysql://localhost:3306/dev_db
    username: dev_user
    password: dev123
server:
  port: 8080
feature:
  new-checkout: true  # 開發(fā)環(huán)境開啟新特性

spring:
  datasource:
    url: jdbc:mysql://prod-db-cluster:3306/prod_db?useSSL=true
    username: ${DB_USER}
    password: ${DB_PASSWORD}
    hikari:
      maximum-pool-size: 50
server:
  port: 80
  compression:
    enabled: true
management:
  endpoints:
    web:
      exposure:
        include: health,metrics

// 復(fù)雜條件組合
@Configuration
public class AdvancedProfileConfig {
    @Bean
    @Profile({"prod & aws", "cloud"}) // AND/OR條件
    public CloudService awsCloudService() {
        return new AWSService();
    }
    @Bean
    @Profile("kubernetes & !test") // 非測試環(huán)境的K8S
    public K8sService k8sService() {
        return new K8SServiceImpl();
    }
}

@SpringBootApplication
public class MyApp implements EnvironmentAware {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class, args);
    }
    @Override
    public void setEnvironment(Environment env) {
        // 運(yùn)行時(shí)動(dòng)態(tài)處理Profiles
        String[] activeProfiles = env.getActiveProfiles();
        if (Arrays.asList(activeProfiles).contains("prod")) {
            System.setProperty("spring.main.banner-mode", "off");
        }
    }
}

@SpringBootTest
@ActiveProfiles("test")
public class ProfileIntegrationTest {
    @TestConfiguration
    @Profile("test")
    static class TestConfig {
        @Bean
        @Primary
        public SomeService mockService() {
            return Mockito.mock(SomeService.class);
        }
    }
    @Autowired
    private SomeService service; // 注入mock實(shí)現(xiàn)
    @Test
    void testWithMock() {
        // 測試邏輯
    }
}

spring:
  datasource:
    password: ${DB_SECRET:fallbackPassword}

application-prod-secret.yml # 被.gitignore忽略

FROM openjdk:17-jdk
ARG ACTIVE_PROFILE
COPY target/*.jar app.jar
ENTRYPOINT ["java","-Dspring.profiles.active=${ACTIVE_PROFILE}","-jar","/app.jar"]

docker build --build-arg ACTIVE_PROFILE=prod -t myapp .

@Configuration
@Profile("prod")
public class ProdMonitoringConfig {
    @Bean
    public MeterRegistryCustomizer<PrometheusMeterRegistry> prodMetrics() {
        return registry -> registry.config().commonTags("env", "production");
    }
    @Bean
    @ConditionalOnMissingBean
    public HealthIndicator specialProdHealth() {
        return () -> Health.up().withDetail("prod-specific", true).build();
    }
}

public class CustomProfileEnvironmentPostProcessor implements EnvironmentPostProcessor {
    @Override
    public void postProcessEnvironment(ConfigurableEnvironment env, 
                                     SpringApplication application) {
        if (isKubernetesEnv()) {
            env.addActiveProfile("kubernetes");
        }
    }
}

org.springframework.boot.env.EnvironmentPostProcessor=com.example.CustomProfileEnvironmentPostProcessor

@Bean
@Profile("dev")
@Lazy
public DevOnlyService devService() {
    return new DevOnlyService();
}

@Configuration
@ConditionalOnProfile("metrics")
public class MetricsConfig {
    // 僅當(dāng)metrics profile激活時(shí)加載
}

# 生產(chǎn)環(huán)境禁用dev工具
java -jar app.jar --spring.profiles.active=prod --spring.devtools.restart.enabled=false