json 在golang中将地图转换为字符串
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Converting map to string in golang
提问by ecl0
I am trying to find the best way to convert
我试图找到最好的转换方式
map[string]stringto type string . I tried converting to json with marshall to keep the format and then converting back to string but this was not successful. More specifically I am trying to convert a map containing keys and vals to a string to accommodate https://www.nomadproject.io/docs/job-specification/template.html#environment-variableshttps://github.com/hashicorp/nomad/blob/master/nomad/structs/structs.go#L3647
map[string]string输入字符串。我尝试使用 marshall 转换为 json 以保持格式，然后转换回字符串，但这没有成功。更具体地说，我试图将包含键和 val 的映射转换为字符串以适应https://www.nomadproject.io/docs/job-specification/template.html#environment-variables https://github.com/hashicorp /nomad/blob/master/nomad/structs/structs.go#L3647
For example the final string should be like
例如，最终的字符串应该像
LOG_LEVEL="x"
API_KEY="y"
The map
地图
m := map[string]string{
"LOG_LEVEL": "x",
"API_KEY": "y",
}
回答by Shaban Naasso
I understand you need some key=value pair on each line representing one map entry.
我知道您需要在代表一个地图条目的每一行上使用一些键=值对。
P.S. you just updated your question and i see you still need quotes around the values, so here come the quotes
PS你刚刚更新了你的问题，我看到你仍然需要在值周围引用，所以这里是引用
package main
import (
"bytes"
"fmt"
)
func createKeyValuePairs(m map[string]string) string {
b := new(bytes.Buffer)
for key, value := range m {
fmt.Fprintf(b, "%s=\"%s\"\n", key, value)
}
return b.String()
}
func main() {
m := map[string]string{
"LOG_LEVEL": "DEBUG",
"API_KEY": "12345678-1234-1234-1234-1234-123456789abc",
}
println(createKeyValuePairs(m))
}
Working Example: Go Playground
工作示例： 去游乐场
回答by Peter Gloor
I would do this very simple and pragmatic:
我会这样做非常简单和务实：
package main
import (
"fmt"
)
func main() {
m := map[string]string{
"LOG_LEVEL": "x",
"API_KEY": "y",
}
var s string
for key, val := range m {
// Convert each key/value pair in m to a string
s = fmt.Sprintf("%s=\"%s\"", key, val)
// Do whatever you want to do with the string;
// in this example I just print out each of them.
fmt.Println(s)
}
}
You can see this in action in The Go Playground
您可以在The Go Playground 中看到这一点
