README
¶
qrcode
golang 编码/解码二维码
-
编码采用 github.com/boombuler/barcode
-
解码支持采用golang或zbar(zbar更准确)
zbar解码需要
#include <zbar.h>c语言库的支持（例如：pip install zbar）
例子
package main
import (
"fmt"
"image/png"
"os"
"github.com/admpub/qrcode"
)
func main() {
err := png.EncodeToFile("test qrcode", 300, 300,"./test.png")
if err != nil {
fmt.Println(err)
return
}
value := qrcode.DecodeFile("./test.png")
fmt.Println(value)
}
如何安装zbar
Ubuntu
sudo apt-get install libzbar-dev
CentOS
sudo yum install zbar-devel
或
sudo yum -y install epel-release pygtk2.x86_64 zbar-pygtk.x86_64 pygtk2-devel.x86_64 pygtk2-doc.noarch pygobject2.x86_64 pygobject2-devel.x86_64 pygobject2-doc.x86_64 gtk2 gtk2-devel gtk2-devel-docs pdftk ImageMagick ImageMagick-devel ghostscript Python-imaging python-devel python-gtk2-dev libqt4-dev PyQt4.x86_64 PyQt4-devel.x86_64
wget http://ftp.gnome.org/pub/GNOME/sources/pygtk/2.24/pygtk-2.24.0.tar.gz
tar -zvxf pygtk-2.24.0.tar.gz
cd pygtk-2.24.0
./configure
make
sudo make install
wget http://downloads.sourceforge.net/project/zbar/zbar/0.10/zbar-0.10.tar.gz
tar -zvxf zbar-0.10.tar.gz
cd zbar-0.10
./configure --disable-video
make
sudo make install
Documentation
¶
Index ¶
- Constants
- func Decode(reader io.Reader, imageType string) (string, error)
- func DecodeFile(imgPath string) (string, error)
- func Encode(value string, width, height int) (image.Image, error)
- func EncodeToFile(value string, width, height int, qrcodeFile string) error
- func EncodeToWriter(value string, width, height int, writer io.Writer) error
- type Name
Constants ¶
const (
VERSION = 1.0
)
Variables ¶
This section is empty.
Functions ¶
func Decode ¶
Decode reads a QR code from the given reader and returns its content. The imageType parameter specifies the format of the input image (e.g., "png", "jpeg"). Returns the decoded content as a string or an error if decoding fails.
func DecodeFile ¶
DecodeFile reads the QR code from the specified image file path and returns its decoded content. If the file cannot be opened or the QR code cannot be decoded, it returns an error.
func Encode ¶
Encode generates a QR code image from the given string value with specified width and height. Returns the generated image or an error if encoding fails or if the encoded content differs from the input.
func EncodeToFile ¶
EncodeToFile encodes the given value as a QR code and saves it to the specified file. The width and height parameters determine the dimensions of the generated QR code image. Returns an error if file creation or QR code generation fails.
func EncodeToWriter ¶
EncodeToWriter encodes the given string value into a QR code image with specified width and height, then writes the PNG-encoded image data to the provided io.Writer. Returns an error if encoding or writing fails.
Source Files
Directories