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zxing实现生成二维码与解析

2017-08-08 15:18 447 查看

生成二维码的开源项目有SwetakeQRCode、BarCode4j、Zxing......

前端有JQuery-qrcode,同样能实现生成二维码。下面我用的是Zxing

pom.xml的配置

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.zhaomei.test</groupId>

<artifactId>qrcode</artifactId>

<version>0.0.1-SNAPSHOT</version>

<packaging>jar</packaging>

<name>qrcode</name>

<url>http://maven.apache.org</url>

<properties>

<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

</properties>

<dependencies>

<dependency>

<groupId>junit</groupId>

<artifactId>junit</artifactId>

<version>3.8.1</version>

<scope>test</scope>

</dependency>

<dependency>

<groupId>com.google.zxing</groupId>

<artifactId>core</artifactId>

<version>3.0.0</version>

</dependency>

<dependency>

<groupId>com.google.zxing</groupId>

<artifactId>javase</artifactId>

<version>3.0.0</version>

</dependency>

</dependencies>

</project>

java代码生成二维码（content需要什么内容就写哪个内容跳转）

package com.zhaomei.test.qrcode;

import java.io.File;

import java.nio.file.Path;

import java.util.HashMap;

import com.google.zxing.BarcodeFormat;

import com.google.zxing.EncodeHintType;

import com.google.zxing.MultiFormatWriter;

import com.google.zxing.WriterException;

import com.google.zxing.client.j2se.MatrixToImageWriter;

import com.google.zxing.common.BitMatrix;

import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class QRCodeTest {
//生成二维码
public static void main(String[] args) throws Exception {
int width =300 ;
int height =300 ;
String format ="png";
String content="http://www.jthinking.com";
//定义二维码的参数
HashMap hints =new HashMap();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
hints.put(EncodeHintType.MARGIN,2);
try {
BitMatrix bitMatrix =
new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height,hints);
Path file =new File("D:/img.png").toPath();
MatrixToImageWriter.writeToPath(bitMatrix, format, file);
} catch (WriterException e) {
e.printStackTrace();
}
}

}

java代码解析二维码

package com.zhaomei.test.qrcode;

import java.awt.image.BufferedImage;

import java.io.File;

import java.util.HashMap;

import javax.imageio.ImageIO;

import com.google.zxing.BinaryBitmap;

import com.google.zxing.EncodeHintType;

import com.google.zxing.MultiFormatReader;

import com.google.zxing.Result;

import com.google.zxing.client.j2se.BufferedImageLuminanceSource;

import com.google.zxing.common.HybridBinarizer;

public class ReadQRCode {

public static void main(String[] args) throws Exception {
MultiFormatReader formatReader =new MultiFormatReader();
File file =new File("D:/img.png");
BufferedImage image =ImageIO.read(file);
//生成二维码参数
HashMap hints =new HashMap();
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
BinaryBitmap binaryBitmap =new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(image)));

Result result= formatReader.decode(binaryBitmap,hints);

System.out.println("解析结果是"+result.toString());

System.out.println("二维码文本内容"+result.getText());

System.out.println("二维码格式内容"+result.getBarcodeFormat());

}

}

解析二维码打印数据

解析结果是http://www.jthinking.com

二维码文本内容http://www.jthinking.com

二维码格式内容QR_CODE

生成的二维码图：

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标签： 二维码 zxing java生成二维码

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