nameerror: name '_mysql' is not defined
时间: 2023-04-27 19:04:48 浏览: 85
这是一个错误提示,意思是“名称错误:未定义'_mysql'”。它通常出现在Python程序中,表示程序中使用了一个未定义的变量或函数。要解决这个错误,需要检查程序中是否正确导入了相关的模块或库,或者是否正确定义了变量和函数。
相关问题
The ReplicationController "mysql-rc" is invalid: spec.template.metadata.labels: Invalid value: map[string]string{"name":"mysql"}: `selector` does not match template `labels`
The error message indicates that the ReplicationController "mysql-rc" is invalid because the labels in the `selector` field do not match the labels in the `template` field of the ReplicationController's spec.
In Kubernetes, a ReplicationController uses labels to select and manage a set of replica Pods. The `selector` field in the ReplicationController's spec is used to match the labels of the Pods it manages, while the `template` field is used to define the desired state of the Pods.
To resolve this issue, you need to ensure that the labels defined in the `selector` field match the labels defined in the `template` field of the ReplicationController's spec. Double-check the labels in both fields and make sure they are identical.
Here is an example of a valid ReplicationController definition with matching labels:
```yaml
apiVersion: v1
kind: ReplicationController
metadata:
name: mysql-rc
spec:
replicas: 3
selector:
matchLabels:
name: mysql
template:
metadata:
labels:
name: mysql
spec:
containers:
- name: mysql
image: mysql:latest
ports:
- containerPort: 3306
```
Make sure to replace the image, ports, and other configuration values according to your requirements.
Error creating bean with name 'jdbcMappingContext' defined in class path resource
回答: 根据您提供的引用内容,报错信息是"Error creating bean with name 'jdbcMappingContext' defined in class path resource"。这个错误通常是由于缺少相关的配置信息导致的。根据引用\[1\]中的解释,Spring Boot会默认加载org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration类来使用@Configuration注解向Spring注入dataSource bean。如果您的工程中没有关于dataSource相关的配置信息,就会导致创建dataSource bean时出错。为了解决这个问题,您可以在yaml配置文件中添加dataSource的相关配置,如引用\[2\]所示。另外,还需要在POM文件中添加mysql-connector-java的依赖,如引用\[3\]所示。这样就可以解决创建jdbcMappingContext bean时的错误。
#### 引用[.reference_title]
- *1* [【无标题】如何解决 报Error creating bean with name ‘jdbcConverter‘ defined in class path resource](https://blog.csdn.net/QQ1664537320/article/details/123599077)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* *3* [第一次在SpringBoot连接数据库](https://blog.csdn.net/ebdbbd/article/details/125967644)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control,239^v3^insert_chatgpt"}} ] [.reference_item]
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