前言：

服务注册nacos 总是会打印一些信息，查了下说是版本问题，更改nacos 版本后启动失败

异常如下：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘configOpsController’ defined in URL [jar:file:/home/nacos/target/nacos-server.jar!/BOOT-INF/lib/nacos-config-1.3.0.jar!/com/alibaba/nacos/config/server/controller/ConfigOpsController.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘externalDumpService’: Invocation of init method failed; nested exception is ErrCode:500, ErrMsg:Nacos Server did not start because dumpservice bean construction failure :
No DataSource set
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:769)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:218)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1308)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1154)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:604)Causedby:org.springframework.beans.factory.BeanCreationException:Errorcreatingbeanwithnam{e}^{\prime }externalDumpServic{e}^{\prime }:Invocationofinitmethodfailed;nestedexceptionisErrCode:500,ErrMsg:NacosServerdidnotstartbecausedumpservicebeanconstructionfailure:NoDataSourcesetatorg.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:139)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:419)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1737)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576)atorg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)atorg.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)atorg.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)atorg.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)atorg.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)atorg.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:273)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1237)atorg.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1164)atorg.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:857)atorg.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:760)...27commonframesomittedCausedby:com.alibaba.nacos.api.exception.NacosException:NacosServerdidnotstartbecausedumpservicebeanconstructionfailure:NoDataSourcesetatcom.alibaba.nacos.config.server.service.dump.DumpService.dumpOperate(DumpService.java:191)atcom.alibaba.nacos.config.server.service.dump.ExternalDumpService.init(ExternalDumpService.java:49)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)atjava.lang.reflect.Method.invoke(Method.java:498)atorg.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:307)
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136)
… 40 common frames omitted
Caused by: java.lang.IllegalStateException: No DataSource set
at org.springframework.util.Assert.state(Assert.java:73)
at org.springframework.jdbc.support.JdbcAccessor.obtainDataSource(JdbcAccessor.java:77)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:371)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:452)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:462)
at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:473)
at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:480)
at com.alibaba.nacos.config.server.service.repository.ExternalStoragePersistServiceImpl.find

主要信息：No DataSource set

解决:

1、mysql驱动连接 加参数：
characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&serverTimezone=Asia/Shanghai
2、mysql连接地址改为ip(1.1.x 版本使用容器名也可正常启动)
mysql -> 127.0.0.1

db连接配置如下：

spring.datasource.platform=mysql
db.num=1
db.url.0=jdbc:mysql://127.0.0.1:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&serverTimezone=Asia/Shanghai
db.user=root
db.password=root

-End