引入jar包
zxing-2.3.0.jar、IKAnalyzer2012_u6.jar
ZXingCode .java
package com.util;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import org.apache.commons.lang.StringUtils;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;/**
* @Description: (二维码)
* @author tom
*/
public class ZXingCode {
private static final int BLACK = 0xFF000000;//黑色
private static final int WHITE = 0xFFFFFFFF;//白色
private static class SingletonHolder{
private final static ZXingCode INSTANCE=new ZXingCode();
}
private ZXingCode(){}
public static ZXingCode getInstance(){
return SingletonHolder.INSTANCE;
}
/**
* 给二维码图片添加Logo
*
* @param qrPic
* @param logoPic
*/
public void addLogoQRCode(File qrPic, File logoPic,
ZxingLogoConfig logoConfig) {
try {
if (!qrPic.isFile() || !logoPic.isFile()) {
System.out.print("file not find !");
System.exit(0);
}
/**
* 读取二维码图片，并构建绘图对象
*/
BufferedImage image = ImageIO.read(qrPic);
Graphics2D g = image.createGraphics();
/**
* 读取Logo图片
*/
BufferedImage logo = ImageIO.read(logoPic);
/**
* 设置logo的大小,本人设置为二维码图片的20%,因为过大会盖掉二维码
*/
int widthLogo = logo.getWidth(null) > image.getWidth() * 2 / 10 ? (image.getWidth() * 2 / 10)
: logo.getWidth(null),
heightLogo = logo.getHeight(null) > image.getHeight() * 2 / 10 ? (image.getHeight() * 2 / 10)
: logo.getWidth(null);
// 计算图片放置位置
/**
* logo放在中心
*/
int x = (image.getWidth() - widthLogo) / 2;
int y = (image.getHeight() - heightLogo) / 2;
/**
* logo放在右下角
*/
/*
* int x = (image.getWidth() - widthLogo); int y =
* (image.getHeight() - heightLogo);
*/
// 开始绘制图片
g.drawImage(logo, x, y, widthLogo, heightLogo, null);
g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15);
g.setStroke(new BasicStroke(logoConfig.getBorder()));
g.setColor(logoConfig.getBorderColor());
g.drawRect(x, y, widthLogo, heightLogo);
g.dispose();
logo.flush();
image.flush();
ImageIO.write(image, "png", new File("D:/test/2.jpg"));
} catch (Exception e) {
e.printStackTrace();
}
}
public BufferedImage addLogoQRCode(BufferedImage image, File logoPic,
ZxingLogoConfig logoConfig) {
try {
if (image==null || !logoPic.isFile()) {
System.out.print("file not find !");
return image;
}
/**
* 读取二维码图片，并构建绘图对象
*/
Graphics2D g = image.createGraphics();
/**
* 读取Logo图片
*/
BufferedImage logo = ImageIO.read(logoPic);
/**
* 设置logo的大小,本人设置为二维码图片的20%,因为过大会盖掉二维码
*/
int widthLogo = logo.getWidth(null) > image.getWidth() * 2 / 10 ? (image.getWidth() * 2 / 10)
: logo.getWidth(null),
heightLogo = logo.getHeight(null) > image.getHeight() * 2 / 10 ? (image.getHeight() * 2 / 10)
: logo.getWidth(null);
// 计算图片放置位置
/**
* logo放在中心
*/
int x = (image.getWidth() - widthLogo) / 2;
int y = (image.getHeight() - heightLogo) / 2;
/**
* logo放在右下角
*/
/*
* int x = (image.getWidth() - widthLogo); int y =
* (image.getHeight() - heightLogo);
*/
// 开始绘制图片
g.drawImage(logo, x, y, widthLogo, heightLogo, null);
g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15);
g.setStroke(new BasicStroke(logoConfig.getBorder()));
g.setColor(logoConfig.getBorderColor());
g.drawRect(x, y, widthLogo, heightLogo);
g.dispose();
logo.flush();
image.flush();
return image;
} catch (Exception e) {
e.printStackTrace();
}
return image;
}
public BufferedImage addLogoWordQRCode(BufferedImage image,
String logoWord, Integer fontSize,
ZxingLogoConfig logoConfig) {
try {
if (image==null || StringUtils.isBlank(logoWord)) {
System.out.print("file not find !");
return image;
}
Graphics2D g = image.createGraphics();
int widthLogo = g.getFontMetrics().stringWidth(logoWord);
int heightLogo= 10;
int x = (image.getWidth() - widthLogo) / 2;
int y = (image.getHeight() - heightLogo) / 2;
// 开始绘制图片
Font font=new Font("黑体", Font.PLAIN, fontSize);
g.setFont(font);
g.setColor(Color.BLACK);
g.drawString(logoWord, x, y);
g.dispose();
image.flush();
return image;
} catch (Exception e) {
e.printStackTrace();
}
return image;
}
/**
* 二维码的解析
*
* @param file
*/
public void parseQRCODEImage(File file) {
try {
MultiFormatReader formatReader = new MultiFormatReader();
// File file = new File(filePath);
if (!file.exists()) {
return;
}
BufferedImage image = ImageIO.read(file);
LuminanceSource source = new BufferedImageLuminanceSource(image);
Binarizer binarizer = new HybridBinarizer(source);
BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);
Map hints = new HashMap();
hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
Result result = formatReader.decode(binaryBitmap, hints);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 将二维码生成为文件
*
* @param bm
* @param imageFormat
* @param file
*/
public void decodeQRCODE2ImageFile(BitMatrix bm, String imageFormat, File file) {
try {
if (null == file || file.getName().trim().isEmpty()) {
throw new IllegalArgumentException("文件异常，或扩展名有问题！");
}
BufferedImage bi = fileToBufferedImage(bm);
ImageIO.write(bi, "png", file);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 构建初始化二维码
*
* @param bm
* @return
*/
public BufferedImage fileToBufferedImage(BitMatrix bm) {
BufferedImage image = null;
try {
int w = bm.getWidth(), h = bm.getHeight();
image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFCCDDEE);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return image;
}
/**
* 生成二维码bufferedImage图片
*
* @param content
* 编码内容
* @param barcodeFormat
* 编码类型
* @param width
* 图片宽度
* @param height
* 图片高度
* @param hints
* 设置参数
* @return
*/
public BufferedImage getQRCODEBufferedImage(String content,
BarcodeFormat barcodeFormat, int width, int height,
Map<EncodeHintType, ?> hints) {
MultiFormatWriter multiFormatWriter = null;
BitMatrix bm = null;
BufferedImage image = null;
try {
multiFormatWriter = new MultiFormatWriter();
// 参数顺序分别为：编码内容，编码类型，生成图片宽度，生成图片高度，设置参数
bm = multiFormatWriter.encode(content, barcodeFormat, width, height, hints);
int w = bm.getWidth();
int h = bm.getHeight();
image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
// 开始利用二维码数据创建Bitmap图片，分别设为黑（0xFF000000）白（0xFFFFFFFF）两色
for (int x = 0; x < w; x++) {
for (int y = 0; y < h; y++) {
image.setRGB(x, y, bm.get(x, y) ? BLACK : WHITE);
}
}
} catch (WriterException e) {
e.printStackTrace();
}
return image;
}
/**
* 设置二维码的格式参数
*
* @return
*/
public Map<EncodeHintType, Object> getDecodeHintType() {
// 用于设置QR二维码参数
Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();
// 设置QR二维码的纠错级别（H为*别）具体级别信息
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
// 设置编码方式
hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
//hints.put(EncodeHintType.MARGIN, 0);
//hints.put(EncodeHintType.MAX_SIZE, 350);
//hints.put(EncodeHintType.MIN_SIZE, 100);
return hints;
}
}
控制器方法请求代码
package com.test;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.google.zxing.BarcodeFormat;
import com.util.ZXingCode;
/**
* 二维码Action
*/
@Controller
public class DimensionCodeAct {
/**
* 生成二维码图片
* @param content url链接
* @param fontSize 文字大小
* @param size 图片大小
* @param request
* @param response
*/
@RequestMapping("/o_create_dimensioncode.jspx")
public void createCodeImg(String content,
Integer fontSize,Integer size,
HttpServletRequest request,
HttpServletResponse response) {
if(StringUtils.isNotBlank(content)){
if(size==null){
size=100;
}
if(fontSize==null){
fontSize=10;
}
response.setContentType("image/png");
try {
ZXingCode zp = ZXingCode.getInstance();
BufferedImage bim = zp.getQRCODEBufferedImage(content, BarcodeFormat.QR_CODE, size, size,
zp.getDecodeHintType());
ImageIO.write(bim, "png", response.getOutputStream());
} catch (Exception e) {
//e.printStackTrace();
}
}
}
}
页面调用
<img src="/o_create_dimensioncode.jspx?content=${url!}&size=90" style="width:150px;height:150px;"/>