golang: declaring a camelcase in a struct declaration

huangapple
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英文:

golang: declaring a camelcase in a struct declaration

问题

我正在尝试通过Golang读取一个YAML文件。

但是"matchLabels"子结构没有被识别。

YAML文件如下：

  1. apiVersion: apps/v1
  2. kind: Deployment
  3. metadata:
  4.     name: nginx-deploy
  5.     labels:
  6.       app: test
  7. spec:
  8.     replicas: 3
  9.     selector:
  10.         matchLabels:
  11.             app: web

结构体如下：

  1. type myData struct {
  2. 	Apivesion string `yaml:"apiVersion"`
  3. 	Kind      string
  4. 	Metadata  struct {
  5. 		Name   string
  6. 		Labels struct {
  7. 			App string
  8. 		}
  9. 	}
  10. 	Spec struct {
  11. 		Replicas int64
  12. 		Selector struct {
  13. 			Matchlabels struct {
  14. 				App string
  15. 			}
  16. 		}
  17. 	}
  18. }

期望结果：

&{apps/v1 Deployment {nginx-deploy {test}} {3 {{web}}}}

实际结果：

&{apps/v1 Deployment {nginx-deploy {test}} {3 {{}}}}

修复方法没有生效：

Matchlabels struct yaml:"matchLabels" {

英文:

I'm trying to read a yaml file via golang.

But the "matchLabels" sub-struct is not being recognized

yaml

  1. apiVersion: apps/v1
  2. kind: Deployment
  3. metadata:
  4.     name: nginx-deploy
  5.     labels:
  6.       app: test
  7. spec:
  8.     replicas: 3
  9.     selector:
  10.         matchLabels:
  11.             app: web

struct

  1. type myData struct {
  2. 	Apivesion string `yaml:"apiVersion"`
  3. 	Kind      string
  4. 	Metadata  struct {
  5. 		Name   string
  6. 		Labels struct {
  7. 			App string
  8. 		}
  9. 	}
  10. 	Spec struct {
  11. 		Replicas int64
  12. 		Selector struct {
  13. 			Matchlabels struct {
  14. 				App string
  15. 			}
  16. 		}
  17. 	}
  18. }

Expectation

  1. &{apps/v1 Deployment {nginx-deploy {test}} {3 {{web}}}}

Result

  1. &{apps/v1 Deployment {nginx-deploy {test}} {3 {{}}}}

Fix didn't work:

  1. Matchlabels struct `yaml:"matchLabels"` {

答案1

得分: 1

Cerise Limón 在 评论中 给出了答案：

字段标签跟在类型后面：

  1. Matchlabels struct { App string } 
  2. `yaml:"matchLabels"`
英文:

Cerise Limón gave the answer in a comment:

> Field tags follow the type:
> ~~~
> Matchlabels struct { App string }
> yaml:"matchLabels"
> ~~~

答案2

得分: 0

我不认为你正确地实现了建议的答案，请看一下标签的位置：

  1. type myData struct {
  2. 	Apivesion string `yaml:"apiVersion"`
  3. 	Kind      string
  4. 	Metadata  struct {
  5. 		Name   string
  6. 		Labels struct {
  7. 			App string
  8. 		}
  9. 	}
  10. 	Spec struct {
  11. 		Replicas int64
  12. 		Selector struct {
  13. 			Matchlabels struct {
  14. 				App string
  15. 			} `yaml:"matchLabels"`
  16. 		}
  17. 	}
  18. }

参考链接：https://go.dev/play/p/yd9c-iBz2yL

英文:

I don't think you implemented the suggested answer correctly, see where the tag is:

  1. type myData struct {
  2. 	Apivesion string `yaml:"apiVersion"`
  3. 	Kind      string
  4. 	Metadata  struct {
  5. 		Name   string
  6. 		Labels struct {
  7. 			App string
  8. 		}
  9. 	}
  10. 	Spec struct {
  11. 		Replicas int64
  12. 		Selector struct {
  13. 			Matchlabels struct {
  14. 				App string
  15. 			} `yaml:"matchLabels"`
  16. 		}
  17. 	}
  18. }

See also: https://go.dev/play/p/yd9c-iBz2yL

答案3

得分: 0

  1. type AutoGenerated struct {
  2. 	APIVersion string `yaml:"apiVersion"`
  3. 	Kind       string `yaml:"kind"`
  4. 	Metadata   struct {
  5. 		Name   string `yaml:"name"`
  6. 		Labels struct {
  7. 			App string `yaml:"app"`
  8. 		} `yaml:"labels"`
  9. 	} `yaml:"metadata"`
  10. 	Spec struct {
  11. 		Replicas int `yaml:"replicas"`
  12. 		Selector struct {
  13. 			MatchLabels struct {
  14. 				App string `yaml:"app"`
  15. 			} `yaml:"matchLabels"`
  16. 		} `yaml:"selector"`
  17. 	} `yaml:"spec"`
  18. }

你可以使用这个工具，它非常有用：

https://zhwt.github.io/yaml-to-go/

英文: 
  1. type AutoGenerated struct {
  2. 	APIVersion string `yaml:"apiVersion"`
  3. 	Kind       string `yaml:"kind"`
  4. 	Metadata   struct {
  5. 		Name   string `yaml:"name"`
  6. 		Labels struct {
  7. 			App string `yaml:"app"`
  8. 		} `yaml:"labels"`
  9. 	} `yaml:"metadata"`
  10. 	Spec struct {
  11. 		Replicas int `yaml:"replicas"`
  12. 		Selector struct {
  13. 			MatchLabels struct {
  14. 				App string `yaml:"app"`
  15. 			} `yaml:"matchLabels"`
  16. 		} `yaml:"selector"`
  17. 	} `yaml:"spec"`
  18. }

You can use this tool, it is really helpful:

> https://zhwt.github.io/yaml-to-go/

huangapple
  • 本文由 发表于 2022年8月26日 08:21:52
  • 转载请务必保留本文链接：https://go.coder-hub.com/73494857.html
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