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https://github.com/bitxx/csvreader
csv解析为结构体，对原作者https://github.com/zhnxin/csvreader项目的进一步完善
https://github.com/bitxx/csvreader
csv decode encode golang parse
Last synced: 24 days ago
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csv解析为结构体，对原作者https://github.com/zhnxin/csvreader项目的进一步完善
- Host: GitHub
- URL: https://github.com/bitxx/csvreader
- Owner: bitxx
- License: mit
- Created: 2022-01-27T13:31:17.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2023-07-26T13:25:33.000Z (over 1 year ago)
- Last Synced: 2024-11-21T18:11:34.167Z (3 months ago)
- Topics: csv, decode, encode, golang, parse
- Language: Go
- Homepage:
- Size: 4.88 KB
- Stars: 0
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# csvreader
Jason
简单的csv格式文件解析到`struct`工具
2022-01-27 注：为满足自身需要，在 [原作者：zhnxin 项目](https://github.com/zhnxin/csvreader) 基础上做了改动：
1. 当header中字段首尾存在空格时，去除空格
2. value值，去除开头和结尾的空格
3. header中的字段必须全为小写，结构体随意，但名称必须和header中字段名称保持一致
## 安装
```shell
go get github.com/bitxx/csvreader
```
## 简单用法
NOTE: 默认情况下，*csv* 文件的首行会被当作header处理。
```csv
hosname,ip
redis,172.17.0.2
mariadb,172.17.0.3
```
```go
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))
```
NOTE: 如果 *csv* 文件首行不包含header，可以使用 *WithHeader([]string)* 来指定header。
```go
_ = csvreader.New().WithHeader([]string{"hostname","ip"}).UnMarshalFile("file.csv",&infos)
```
## 自定义parster
就像枚举类型(enum),偶尔会遇到这种需要实现自定义转换过程的情况。例子如下
```go
type NetProtocol uint32
const(
NetProtocol_TCP NetProtocol = iota
NetProtocol_UDP
NetProtocol_DCCP
NetProtocol_SCTP
)
type ServiceInfo struct{
Host string
Port string
Protocol NetProtocol
}
```
直接使用原始的类型来编辑csv文件，十分不便。这时就需要实现自定义parser。
```go
type CsvMarshal interface {
FromString(string) error
}
```
```go
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
}
```
另外一个例子 reader_test.go TestCustom