读取Go中的json文件值
我有一个配置文件。我想从该文件中获取特定值。这是我的密码:读取Go中的json文件值,json,go,Json,Go,我有一个配置文件。我想从该文件中获取特定值。这是我的密码: package main import ( "fmt" "os" "encoding/json" ) type Configuration struct { consumer_key string consumer_secret string access_token string access_token_secret string db_name
package main
import (
"fmt"
"os"
"encoding/json"
)
type Configuration struct {
consumer_key string
consumer_secret string
access_token string
access_token_secret string
db_name string
db_user string
db_password string
secret_key string
fb_page string
fb_page_token string
domain string
}
func main() {
file, _ := os.Open("./config.json")
decoder := json.NewDecoder(file)
configuration := Configuration{}
error_ := decoder.Decode(&configuration)
fmt.Println(configuration.domain)
}
config.json
{
"consumer_key": "",
"consumer_secret": "",
"access_token": "",
"access_token_secret": "",
"db_name": "",
"db_user": "",
"db_password": "",
"secret_key": "",
"fb_page": "",
"fb_page_token": "",
"domain": "localhost:8000"
}
但问题是它总是打印空行,而不是我期望的值localhost:8000
。您需要输入Configuration.domain字段,以便json包可以看到它
将域字段重命名为域:
type Configuration struct {
Domain string
}
如果json名称与字段名不同,也可以显式指定json名称:
type Configuration struct {
Domain string `json:"domain_name"`
}