Apollo搭建踩过的那些坑

环境：

阿里云 CentOS

Java 8

Apollo 1.1

问题一

Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class com.ctrip.framework.apollo.tracer.Tracer
      at com.ctrip.framework.apollo.build.ApolloInjector.getInstance(ApolloInjector.java:37)
      at com.ctrip.framework.apollo.ConfigService.getManager(ConfigService.java:25)
      at com.ctrip.framework.apollo.ConfigService.getConfig(ConfigService.java:61)

问题解析：

只在Maven中导入了client依赖

问题解决：

导入同版本的apollo-core依赖

问题二

Caused by: com.ctrip.framework.apollo.exceptions.ApolloConfigException: Unable to initialize Apollo Spring Injector!
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInjector(SpringInjector.java:24)
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInstance(SpringInjector.java:37)
	... 14 more
Caused by: java.lang.NoClassDefFoundError: com/google/inject/Module
	at com.ctrip.framework.apollo.spring.util.SpringInjector.getInjector(SpringInjector.java:22)
	... 15 more

问题解析：

从报错信息可以看到是缺少部分类，通过查询类名得知这几个依赖

问题解决：

除了core和client，还需要导入guava等多个依赖

        
        
            com.google.guava
            guava
            23.0
        
        
        
            com.google.code.gson
            gson
            2.8.6
        
        
        
            com.google.inject
            guice
            4.2.2
        

问题三

Sync config failed, will retry. Repository class com.ctrip.framework.apollo.internals.RemoteConfigRepository, 
reason: Load Apollo Config failed - appId: bitongchong_bos, cluster: default, namespace: application, 
url: http://此处是私有ip:8080/configs/bitongchong_bos/default/application?ip=192.168.102.1&messages=%7B%22details%22%3A%7B%22bitongchong_bos%2Bdefault%2Bapplication%22%3A6%7D%7D&releaseKey=20190803112627-2b5dd0e414976d16 
[Cause: Could not complete get operation [Cause: connect timed out]]

问题解析：

这个是部署在云服务器上时才会遇到的坑，这个时候eureka实体地址不经过设置，会直接被解析为云服务器内网地址，而非公网地址，因此不能够正常访问，需要仔细查看是否存在这个问题。

问题解决：

手动进行设置eureka 实体地址，以quick-start那个教程的流程为例，需要在demo.sh中的check Java手动指定公网地址

-Deureka.instance.ip-address=公网地址

问题四

2020-03-04 01:34:28.169  WARN 21840 --- [           main] c.c.f.a.i.AbstractConfigRepository       : Sync config failed, will retry. Repository class com.ctrip.framework.apollo.internals.RemoteConfigRepository, reason: Get config services failed from http://xx.xx.xx.xx:8070/services/config?appId=SPOC_Platform&ip=192.168.102.1 [Cause: Could not complete get operation [Cause: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1 path $ [Cause: Expected BEGIN_ARRAY but was STRING at line 1 column 1 path $]]]
2020-03-04 01:34:30.511  WARN 21840 --- [           main] c.c.f.a.i.LocalFileConfigRepository      : Sync config from upstream repository class com.ctrip.framework.apollo.internals.RemoteConfigRepository failed, reason: Get config services failed from http://xx.xx.xx.xx:8070/services/config?appId=SPOC_Platform&ip=192.168.102.1 [Cause: Could not complete get operation [Cause: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING at line 1 column 1 path $ [Cause: Expected BEGIN_ARRAY but was STRING at line 1 column 1 path $]]]

问题解析：

这个是未对apollo.meta 属性进行正确赋值，必须是eureka的地址和端口，就是你输入这个url+端口的时候跳转到的是eureka这个界面，而非apollo管理页面，否则必定报错

问题解决：

如果用的是quick-start这个官方教程的话，将8070修改为8080即可

-Dapollo.meta=http://我的服务器地址:8080 -Denv=dev