Nacos学习日记6-基于Springboot框架的Nacos服务注册报错

妖狐艹你老母 2023-02-18 11:57 16阅读 0赞

# 基于Springboot框架的Nacos服务注册报错 #

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## 问题现象: ##

今天在测试使用Nacos进行纯代码的方式去注册服务的时候,在启动项目时出现了报错,如下:

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.  
2020-06-17 17:48:21.588 ERROR 21372 --- \[  restartedMain\] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nacosdemo3Application': Invocation of init method failed; nested exception is java.lang.NullPointerException

**Caused by: java.lang.NullPointerException: null**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70][]

实现服务注册的代码如下:

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 1][]

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## 原因分析: ##

原来的依赖包是基于springcloud框架的,

![20200617180219241.png][]

当我改为基于springboot框架的就可以了,

![20200617180311424.png][]

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## 解决方法: ##

由此可见,是依赖包的问题,nacos有基于Spring,SpringBoot,SpringCloud等框架的依赖包,既然分开了多个包,那说明功能,api也会有所不同,我推测,只有com.alibaba.boot下的依赖包才能使用代码实现nacos服务注册的功能.

这里再提一种万能的nacos服务注册方法:

**curl -X PUT "http://127.0.0.1:8848/nacos/v1/ns/instance?serviceName=example&ip=127.0.0.1&port=8080"**

这种方法不受依赖包的影响,是通用的,因为它是基于Curl工具来调用接口的.

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## 关于Curl的相关信息,想了解的同学可以查看我的其他文章,传送门: ##

[https://blog.csdn.net/weixin\_42585386/article/details/106766917][https_blog.csdn.net_weixin_42585386_article_details_106766917]

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200617180115154.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjU4NTM4Ng==,size_16,color_FFFFFF,t_70
[20200617180219241.png]: https://img-blog.csdnimg.cn/20200617180219241.png
[20200617180311424.png]: https://img-blog.csdnimg.cn/20200617180311424.png
[https_blog.csdn.net_weixin_42585386_article_details_106766917]: https://blog.csdn.net/weixin_42585386/article/details/106766917