解决启动nacos报错闪退问题

- 日理万妓 2024-03-23 23:29 49阅读 0赞

## 解决异常: Nacos Server did not start because dumpservice bean construction failure : No DataSource set ##

### 出现问题有两种方法解决： ###

### 1、在学习springcloud项目中，相信很多同学用[nacos配置][nacos]mysql时都遇到了这个报错(No DataSource set) ###

2022-01-22 10:23:25,063 ERROR Application run failed
     
    org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'memoryMonitor' defined in URL [jar:file:/F:/Environment/nacos-server-2.0.3/target/nacos-server.jar!/BOOT-INF/lib/nacos-config-2.0.3.jar!/com/alibaba/nacos/config/server/monitor/MemoryMonitor.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'asyncNotifyService': Unsatisfied dependency expressed through field 'dumpService'; 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

#### 1、nacos配置mysql步骤: ####

#### 1、新建数据库nacos_config, 执行sql脚本生成表

##### 2、在application.properties下配置mysql相关属性 #####

##### 3、启动 #####

#### 一般都是在配置application.properties文件时出了问题, 如果直接照抄官方文档会报错, 因为[mysql8][].0之后的版本, 需要在官网文档配置mysql的基础上加上**mysql时区的设置** ####

#### 正确的配置如下: ####

spring.datasource.platform=mysql
     
    db.num=1
    db.url.0=jdbc:mysql://127.0.0.1:3306/nacos_config?characterEncoding=utf8&serverTimezone=UTC&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
    db.user=我的mysql用户名
    db.password=我的密码

### 2、在本地重新打开数据库，或者重新连接数据库然后再启动nacos ###

[nacos]: https://so.csdn.net/so/search?q=nacos%E9%85%8D%E7%BD%AE&spm=1001.2101.3001.7020
[mysql8]: https://so.csdn.net/so/search?q=mysql8&spm=1001.2101.3001.7020