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

2017-09-08 17:43 2211 查看
生命不止,继续go go go!!!

这里介绍一下,golang如何生成二维码,当然是面向github编程了。

QRCode

百度百科:

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


生成二维码图片:

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")
}
}


结果:



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


生成二维码图片:

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)
}


结果:



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)
}


输出:

http://blog.csdn.net/wangshubo1989

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