Go生成读取二维码(skip2/go-qrcode和boombuler/barcode)

• 2020 年 3 月 4 日
• 筆記

QR Code码，是由Denso公司于1994年9月研制的一种矩阵二维码符号，它具有一维条码及其它二维条码所具有的信息容量大、可靠性高、可表示汉字及图象多种文字信息、保密防伪性强等优点。

wiki：

QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used

###skip2/go-qrcode生成二维码

github地址：https://github.com/skip2/go-qrcode

star 211

获取：

go get skip2/go-qrcode

package main      import qrcode "github.com/skip2/go-qrcode"  import "fmt"      func main() {    err := qrcode.WriteFile("http://blog.csdn.net/wangshubo1989", qrcode.Medium, 256, "qr.png")    if err != nil {      fmt.Println("write error")    }  }  

###boombuler/barcode生成二维码

github地址：https://github.com/boombuler/barcode

star 300

获取：

go get github.com/boombuler/barcode

package main      import (    "image/png"    "os"        "github.com/boombuler/barcode"    "github.com/boombuler/barcode/qr"  )      func main() {        qrCode, _ := qr.Encode("http://blog.csdn.net/wangshubo1989", qr.M, qr.Auto)        qrCode, _ = barcode.Scale(qrCode, 256, 256)        file, _ := os.Create("qr2.png")    defer file.Close()        png.Encode(file, qrCode)  }

###tuotoo/qrcode识别二维码

github地址：https://github.com/tuotoo/qrcode

star 13

获取：

go get github.com/tuotoo/qrcode

读取二维码图片：

package main      import (    "fmt"    "os"        "github.com/tuotoo/qrcode"  )      func main() {        fi, err := os.Open("qrcode.png")    if err != nil {      fmt.Println(err.Error())      return    }    defer fi.Close()    qrmatrix, err := qrcode.Decode(fi)    if err != nil {      fmt.Println(err.Error())      return    }    fmt.Println(qrmatrix.Content)  }