具體做法：

1、首先在pom中新增profiles:

<profiles>
  <profile>
   <id>dev</id>
   <activation>
     <activeByDefault>true</activeByDefault>
   </activation>
   <properties>
     <spring.profiles.active>dev</spring.profiles.active>
   </properties>
   <dependencies>
     <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <optional>true</optional>
     </dependency>
     <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-undertow</artifactId>
     </dependency>
   </dependencies>
  </profile>
 
  <profile>
   <id>prod</id>
   <dependencies>
     <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-undertow</artifactId>
     </dependency>
   </dependencies>
   <properties>
     <spring.profiles.active>prod</spring.profiles.active>
   </properties>
  </profile>
</profiles>

dev指開發模式，prod指生產模式，如需其他模式，只需要新增profile即可.

2、在pom.xml的build中新增plugin:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-resources-plugin</artifactId>
  <version>${maven-resources-plugin.version}</version>
  <executions>
   <execution>
     <id>default-resources</id>
     <phase>validate</phase>
     <goals>
      <goal>copy-resources</goal>
     </goals>
     <configuration>
      <outputDirectory>target/classes</outputDirectory>
      <useDefaultDelimiters>false</useDefaultDelimiters>
      <delimiters>
        <delimiter>#</delimiter>
      </delimiters>
      <resources>
        <resource>
         <directory>src/main/resources/</directory>
         <filtering>true</filtering>
         <includes>
           <include>**/*.xml</include>
           <include>**/*.yml</include>
         </includes>
        </resource>
        <resource>
         <directory>src/main/resources/</directory>
         <filtering>false</filtering>
         <excludes>
           <exclude>**/*.xml</exclude>
           <exclude>**/*.yml</exclude>
         </excludes>
        </resource>
      </resources>
     </configuration>
   </execution>
  </executions>
</plugin>

該配置用來在打包的時候修改配置檔案。

3、編寫DefaultProfileUtil工具類來新增預設啟動配置檔案:

import org.springframework.boot.SpringApplication;
import org.springframework.core.env.Environment;
 
import java.util.HashMap;
import java.util.Map;
 
/**
 * Utility class to load a Spring profile to be used as default
 * when there is no <code>spring.profiles.active</code> set in the environment or as command line argument.
 * If the value is not available in <code>application.yml</code> then <code>dev</code> profile will be used as default.
 */
public final class DefaultProfileUtil {
 
  private static final String SPRING_PROFILE_DEFAULT = "spring.profiles.default";
 
  private DefaultProfileUtil(){
  }
 
  /**
   * Set a default to use when no profile is configured.
   *
   * @param app the spring application
   */
  public static void addDefaultProfile(SpringApplication app) {
    Map<String,Object> defProperties = new HashMap<>();
    /*
    * The default profile to use when no other profiles are defined
    * This cannot be set in the <code>application.yml</code> file.
    * See https://github.com/spring-projects/spring-boot/issues/1219
    */
    defProperties.put(SPRING_PROFILE_DEFAULT,Constants.SPRING_PROFILE_DEVELOPMENT);
    app.setDefaultProperties(defProperties);
    System.out.println(app);
  }
 
  /**
   * Get the profiles that are applied else get default profiles.
   */
  public static String[] getActiveProfiles(Environment env) {
    String[] profiles = env.getActiveProfiles();
    if (profiles.length == 0) {
      return env.getDefaultProfiles();
    }
    return profiles;
  }
}

public class Constants {
 
  public static final String SPRING_PROFILE_DEVELOPMENT = "dev";
  public static final String SPRING_PROFILE_PRODUCTION = "prod";
  private Constants() {
  }
}

4、修改application.yml配置檔案，新增(採用application.properties檔案)：

spring:
  profiles:
   active: #spring.profiles.active#

maven的構建的時候會替換#spring.profiles.active#

5、修改專案的啟動類：

@SpringBootApplication
public class Demo1Application {
 
  private static final Logger log = LoggerFactory.getLogger(Demo1Application.class);
 
  public static void main(String[] args) {
   SpringApplication app = new SpringApplication(Demo1Application.class);
   DefaultProfileUtil.addDefaultProfile(app);
   Environment env = app.run(args).getEnvironment();
   log.info("\n----------------------------------------------------------\n\t" +
         "Application '{}' is running! Access URLs:\n\t" +
         "Local: \t\thttp://localhost:{}\n\t" +
         "----------------------------------------------------------",env.getProperty("spring.application.name"),env.getProperty("server.port"));
  }
}

以上修改完成之後，在啟動的時候會顯示：The following profiles are active: dev 預設dev模式切換成功。

6、構建專案：

採用mvn clean package -Pprod命令構建，最後的配置檔案會被改成：

以上就是spring boot實現profiles動態切換的示例的詳細內容，更多關於spring boot實現profiles動態切換的資料請關注我們其它相關文章！