/
getBase64.go
43 lines (36 loc) · 1.36 KB
/
getBase64.go
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package qrcode
// 生成登录二维码图片, 方便在网页上显示
import (
"bytes"
"encoding/base64"
"image/jpeg"
"image/png"
"github.com/boombuler/barcode"
"github.com/boombuler/barcode/qr"
)
func GetJPGBase64(content string, edges ...int) string {
edgeLen := 300
if len(edges) > 0 && edges[0] > 100 && edges[0] < 2000 {
edgeLen = edges[0]
}
img, _ := qr.Encode(content, qr.L, qr.Unicode)
img, _ = barcode.Scale(img, edgeLen, edgeLen)
emptyBuff := bytes.NewBuffer(nil) // 开辟一个新的空buff缓冲区
jpeg.Encode(emptyBuff, img, nil)
dist := make([]byte, 50000) // 开辟存储空间
base64.StdEncoding.Encode(dist, emptyBuff.Bytes()) // buff转成base64
return "data:image/png;base64," + string(dist) // 输出图片base64(type = []byte)
}
func GetPNGBase64(content string, edges ...int) string {
edgeLen := 300
if len(edges) > 0 && edges[0] > 100 && edges[0] < 2000 {
edgeLen = edges[0]
}
img, _ := qr.Encode(content, qr.L, qr.Unicode)
img, _ = barcode.Scale(img, edgeLen, edgeLen)
emptyBuff := bytes.NewBuffer(nil) // 开辟一个新的空buff缓冲区
png.Encode(emptyBuff, img)
dist := make([]byte, 50000) // 开辟存储空间
base64.StdEncoding.Encode(dist, emptyBuff.Bytes()) // buff转成base64
return string(dist) // 输出图片base64(type = []byte)
}