profile

whatsmars-spring/src/main/java/org/hongxi/whatsmars/spring/profile/ConditionalOnProfile.java

+package org.hongxi.whatsmars.spring.profile;
+
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Component;
+
+@Profile("prod")
+@Component
+public class ConditionalOnProfile implements InitializingBean {
+
+    @Value("${profile}")
+    private String profile;
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+        System.out.println(profile);
+    }
+}

whatsmars-spring/src/main/java/org/hongxi/whatsmars/spring/profile/ProfileUtils.java

+package org.hongxi.whatsmars.spring.profile;
+
+import org.springframework.util.StringUtils;
+
+public class ProfileUtils {
+
+    private static final String PROFILE_ENV_NAME = "PROFILE";
+    private static final String DEFAULT_PROFILE = "test";
+
+    public static String getProfile() {
+        String profile = System.getProperty(PROFILE_ENV_NAME);
+        return StringUtils.isEmpty(profile) ? DEFAULT_PROFILE : profile;
+    }
+}

whatsmars-spring/src/main/java/org/hongxi/whatsmars/spring/profile/PropertyConfiguration.java

+package org.hongxi.whatsmars.spring.profile;
+
+import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.io.ClassPathResource;
+
+@Configuration
+public class PropertyConfiguration {
+
+    @Bean
+    public PropertyPlaceholderConfigurer configurer() {
+        PropertyPlaceholderConfigurer configurer = new PropertyPlaceholderConfigurer();
+        String path = String.format("application-%s.properties", ProfileUtils.getProfile());
+        configurer.setLocation(new ClassPathResource(path));
+        return configurer;
+    }
+}

whatsmars-spring/src/main/java/org/hongxi/whatsmars/spring/profile/Reader.java

+package org.hongxi.whatsmars.spring.profile;
+
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+@Component
+public class Reader implements InitializingBean {
+
+    @Value("${profile}")
+    private String profile;
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+        System.out.println(profile);
+    }
+}

whatsmars-spring/src/main/java/org/hongxi/whatsmars/spring/profile/TestSpring.java

+package org.hongxi.whatsmars.spring.profile;
+
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+public class TestSpring {
+
+    public static void main(String[] args) {
+        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
+        context.register(PropertyConfiguration.class);
+        context.scan("org.hongxi.whatsmars.spring.profile");
+        context.getEnvironment().setActiveProfiles(ProfileUtils.getProfile());
+        context.refresh();
+    }
+}

whatsmars-spring/src/main/resources/application-prod.properties

+profile=prod
\ No newline at end of file

whatsmars-spring/src/main/resources/application-test.properties

+profile=test
\ No newline at end of file