qrcode

README

qrcode

golang 编码/解码二维码

1. 编码采用 github.com/boombuler/barcode

2. 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 -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
)

Functions

func Decode

func Decode(reader io.Reader, imageType string) (string, error)

func DecodeFile

func DecodeFile(imgPath string) (string, error)

func Encode

func Encode(value string, width, height int) (image.Image, error)

func EncodeToFile

func EncodeToFile(value string, width, height int, qrcodeFile string) error

func EncodeToWriter

func EncodeToWriter(value string, width, height int, writer io.Writer) error

Types

type Name

type Name interface {
	Name() string
}