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qrcode.go
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qrcode.go
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package img
import (
"bufio"
"bytes"
"fmt"
"image"
"image/jpeg"
"image/png"
"os"
"github.com/boombuler/barcode"
"github.com/boombuler/barcode/qr"
)
type Qrcode struct {
ByteFile []byte
ImgQrcode image.Image
ext string
}
//生成二维码
func NewQrcode(text string, ext string) (qrCode Qrcode, err error) {
qrCode.ext = ext
img, _ := qr.Encode(text, qr.M, qr.Auto)
img, _ = barcode.Scale(img, 256, 256)
var b bytes.Buffer
w := bufio.NewWriter(&b)
switch qrCode.ext {
case ".jpg":
err = jpeg.Encode(w, img, &jpeg.Options{Quality: 90})
case ".png":
err = png.Encode(w, img)
default:
}
qrCode.ImgQrcode = img
qrCode.ByteFile = b.Bytes()
return
}
//保存二维码
func (Q *Qrcode) OutQrcode(file_path string) (err error) {
imgFile, _ := os.Create(file_path)
defer imgFile.Close()
switch Q.ext {
case ".jpg":
err = jpeg.Encode(imgFile, Q.ImgQrcode, &jpeg.Options{Quality: 90})
case ".png":
err = png.Encode(imgFile, Q.ImgQrcode)
default:
fmt.Println(Q.ext)
}
return
}