go get github.com/zhnxin/csvreadergit
Notegithub |
默認狀況下,csv 文件的首行會被看成header處理。 |
file.csvgolang
hosname,ip redis,172.17.0.2 mariadb,172.17.0.3
goredis
type Info struct{ Hostname string IP string } //struct slice infos := []Info{} _ = csvreader.New().UnMarshalFile("file.csv",&infos) body,_ := json.Marshal(infos) fmt.Println(string(body)) //point slice infos = []*Info{} _ = csvreader.New().UnMarshalFile("file.csv",&infos) body,_ := json.Marshal(infos) fmt.Println(string(body))
Notejson |
若是 csv 文件首行不包含header,能夠使用 WithHeader([]string) 來指定header。 |
_ = csvreader.New().WithHeader([]string{"hostname","ip"}).UnMarshalFile("file.csv",&infos)
就像枚舉類型(enum),偶爾會遇到這種須要實現自定義轉換過程的狀況。例子以下tcp
type NetProtocol uint32 const( NetProtocol_TCP NetProtocol = iota NetProtocol_UDP NetProtocol_DCCP NetProtocol_SCTP ) type ServiceInfo struct{ Host string Port string Protocol NetProtocol }
直接使用原始的類型來編輯csv文件,十分不便。這時就須要實現自定義parser。ui
Tipspa |
type CsvMarshal interface { FromString(string) error } |
func (p *NetProtocol)FromString(protocol string) error{ switch strings.ToLower(protocol){ case "tcp": *p = NetProtocol_TCP case "udp": *p = NetProtocol_UDP case "dccp": *p = NetProtocol_DCCP case "sctp": *p = NetProtocol_SCTP default: return fmt.Errorf("unknown protocoal:%s",protocol) } return nil }
另一個例子 TestCustomcode