项目启动报WARN

[liuzedong]

日志

2019-06-12 12:04:59.670|/|WARN |main|o.s.b.c.p.PropertySourcesDeducer|Multiple PropertySourcesPlaceholderConfigurer beans registered [propertySourcesPlaceholderConfigurer, org.springframework.context.support.PropertySourcesPlaceholderConfigurer], falling back to Environment

Apollo Client => ConfigPropertySourcesProcessor

Spring boot => org.springframework.boot.context.properties.PropertySourcesDeducer

这个能修复下吗？ 项目使用 sentry， 每次项目启动 都收到 邮件提醒。

[nobodyiam]

apollo在注册PropertySourcesPlaceholderConfigurer时会检查是否已经存在这个bean的，如果不存在才会添加。

建议在报warning的地方加个断点看下另外一个bean是谁加进来的。

[liuzedong]

PropertySourcesPlaceholderConfigurer 这个bean是在，spring-boot-autoconfigure.jar : org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration
中加载进来的，

[nobodyiam]

我跑了SpringBootSampleApplication这个sample，貌似没能复现这个问题？

[liuzedong]

异常：2019-06-27 10:27:31.108 INFO 7255 --- [ main] com.example.demo.DemoApplication : No active profile set, falling back to default profiles: default
2019-06-27 10:27:31.533 INFO 7255 --- [ main] o.s.c.a.ConfigurationClassPostProcessor : Cannot enhance @configuration bean definition 'com.ctrip.framework.apollo.spring.boot.ApolloAutoConfiguration' since its singleton instance has been created too early. The typical cause is a non-static @bean method with a BeanDefinitionRegistryPostProcessor return type: Consider declaring such methods as 'static'.
2019-06-27 10:27:33.731 WARN 7255 --- [ main] o.s.b.c.p.PropertySourcesDeducer : Multiple PropertySourcesPlaceholderConfigurer beans registered [propertySourcesPlaceholderConfigurer, org.springframework.context.support.PropertySourcesPlaceholderConfigurer], falling back to Environment
2019-06-27 10:27:33.969 INFO 7255 --- [ main] com.example.demo.DemoApplication : Started DemoApplication in 4.017 seconds (JVM running for 5.27)

SpringBoot使用https://start.spring.io/ 创建最简化项目

demo地址

https://github.com/liuzedong/apollo-demo

[nobodyiam]

确实能重现这个问题，看了一下，如果在DemoApplication上打上注解EnableApolloConfig就不会出现这个WARN日志，尚未仔细定位区别在哪儿

@SpringBootApplication
@EnableApolloConfig
public class DemoApplication {
	public static void main(String[] args) {
		SpringApplication.run(DemoApplication.class, args);
	}
}

[liuyukuai]

• 第一次加载是org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration加载而来，beanName是"propertySourcesPlaceholderConfigurer"

• Apollo Client => ConfigPropertySourcesProcessor这个类是通过类的全路径判断的，所以判断不出来是否加载了

public static boolean registerBeanDefinitionIfNotExists(BeanDefinitionRegistry registry, String beanName, Class<?> beanClass, Map<String, Object> extraPropertyValues) {
       // 这里是否能通过beanClass判断？
      if (registry.containsBeanDefinition(beanName)) {
            return false;
        } else {
            String[] candidates = registry.getBeanDefinitionNames();
            String[] arr$ = candidates;
            int len$ = candidates.length;

            for(int i$ = 0; i$ < len$; ++i$) {
                String candidate = arr$[i$];
                BeanDefinition beanDefinition = registry.getBeanDefinition(candidate);
                if (Objects.equals(beanDefinition.getBeanClassName(), beanClass.getName())) {
                    return false;
                }
            }

            BeanDefinition beanDefinition = BeanDefinitionBuilder.genericBeanDefinition(beanClass).getBeanDefinition();
            if (extraPropertyValues != null) {
                Iterator i$ = extraPropertyValues.entrySet().iterator();

                while(i$.hasNext()) {
                    Entry<String, Object> entry = (Entry)i$.next();
                    beanDefinition.getPropertyValues().add((String)entry.getKey(), entry.getValue());
                }
            }

            registry.registerBeanDefinition(beanName, beanDefinition);
            return true;
        }
    }

• 加上@EnableApolloConfig这个确实就不报了，这个有定位到原因吗？

[stale]

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[stale]

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