windows8运行zxing源码 生成与解码二维码 详解(含注释与图解可直接运行)
2020-12-13 15:48
标签:style blog http io ar os java for sp 1 下载zxing2.1 2 本代码配置环境:eclipse、java1.6、windows8、zxing2.1 3 解压后将文件夹里面core/src下面的com文件夹导入到eclipse工程(工程可以自己建,如QrCode)中,图示如下: 注意:在源码中需要修改其编码配置为UTF-8,否则后面解码后面的文件中中文会乱码,修改图示如下: 4 TestEnDeCode.java源代码 5 运行结果: windows8运行zxing源码 生成与解码二维码 详解(含注释与图解可直接运行) 标签:style blog http io ar os java for sp 原文地址:http://www.cnblogs.com/jameslif/p/4076669.html
package
test;
import
java.awt.image.BufferedImage;
import
java.io.File;
import
java.io.IOException;
import
java.util.Hashtable;
import
java.util.Scanner;
import
javax.imageio.ImageIO;
import
com.google.zxing.BarcodeFormat;
import
com.google.zxing.BinaryBitmap;
import
com.google.zxing.DecodeHintType;
import
com.google.zxing.LuminanceSource;
import
com.google.zxing.MultiFormatReader;
import
com.google.zxing.MultiFormatWriter;
import
com.google.zxing.Reader;
import
com.google.zxing.ReaderException;
import
com.google.zxing.Result;
import
com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import
com.google.zxing.client.j2se.MatrixToImageWriter;
import
com.google.zxing.common.BitMatrix;
import
com.google.zxing.common.HybridBinarizer;
public
class
TestEnDeCode {
/**
*
*/
public
TestEnDeCode() {
// TODO Auto-generated constructor stub
}
/**
* @param args
*/
public
static
void
main(String[] args) {
TestEnDeCode t=
new
TestEnDeCode();
Scanner in =
new
Scanner(System.in);
System.out.println(
"编码内容:"
);
String str = in.next();
// String str = "http://www.baidu.com";
String path =
"D:/Qr_pics/test7.png"
;
t.encode(str, path);
t.decode(path);
}
/*
* 编码:
* 1 将内容转换成二维矩阵
* 2 将该二维矩阵转换成图片
* */
public
void
encode(String str, String path) {
try
{
// String str = "http://www.baidu.com百度看看";// 二维码内容
// String path = "D:/Qr_pics/test7.png"; //二维码图片生成 路径及名称
BitMatrix byteMatrix;
byteMatrix =
new
MultiFormatWriter().encode(
new
String(str.getBytes(
"UTF-8"
),
"UTF-8"
), BarcodeFormat.QR_CODE,
800
,
800
);
//将文字转换成二维矩阵,并设置矩阵大小,这里的矩阵大小就是后面生成的图片像素大小
File file =
new
File(path);
//新建矩阵文件
MatrixToImageWriter.writeToFile(byteMatrix,
"gif"
, file);
//将矩阵文件转换成图片文件
}
catch
(Exception e) {
e.printStackTrace();
}
}
/*
* 解码:
* 1 将图片反解码为二维矩阵
* 2 将该二维矩阵解码为内容
* */
public
void
decode(String imgPath) {
try
{
Reader reader =
new
MultiFormatReader();
// String imgPath = "D:/Qr_pics/test7.png";//获取即将被解码图片的路径
File file =
new
File(imgPath);
//获取该图片文件
BufferedImage image;
try
{
image = ImageIO.read(file);
if
(image ==
null
) {
System.out.println(
"Could not decode image"
);
}
LuminanceSource source =
new
BufferedImageLuminanceSource(image);
BinaryBitmap bitmap =
new
BinaryBitmap(
new
HybridBinarizer(source));
Result result;
Hashtable hints =
new
Hashtable();
//将图片反解码为二维矩阵
hints.put(DecodeHintType.CHARACTER_SET,
"UTF-8"
);
result =
new
MultiFormatReader().decode(bitmap, hints);
//将该二维矩阵解码成内容
String resultStr = result.getText();
System.out.println(
"\n解码结果:\n"
+resultStr);
}
catch
(IOException ioe) {
System.out.println(ioe.toString());
}
catch
(ReaderException re) {
System.out.println(re.toString());
}
}
catch
(Exception ex) {
System.out.println(ex.toString());
}
}
}
上一篇:(java实现)单向循环链表
下一篇:python深拷贝和浅拷贝
文章标题:windows8运行zxing源码 生成与解码二维码 详解(含注释与图解可直接运行)
文章链接:http://soscw.com/essay/35432.html