package com.tarena.hr.util.erWeiCode;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
/**
* @author
*
*
* 直接调用此方法createCode(String content, int width, int height, String srcImagePath, String destImagePath,int srcImageWidth,int srcImageHeight)
/**
* 生成二维码
* @param content----------到达的链接地址（学生的内页地址）
* @param width------------二维码的宽度
* @param height-----------二维码的高度
* @param srcImagePath-----学生头像绝对路径
* @param destImagePath----生成的二维码存放的路径
* @param srcImageWidth-----学生头像宽
* @param srcImageHeight----学生头像高
例：createCode("http://www.tedu.cn", 100, 100, "d:\\hhh.jpg", "F:\\2015-01.jpg",20,20);
*/
public class CreateErWeiUtil {
// 图片宽度的一般
// private static int IMAGE_WIDTH = 20; //学生头像宽 ----二维码中间的图片大小可调节这参数
// private static int IMAGE_HEIGHT = 20; //学生头像高----二维码中间的图片大小可调节这参数
// private static final int IMAGE_HALF_WIDTH = IMAGE_WIDTH / 2;
// private static final int FRAME_WIDTH = 2;
// 二维码写码器
private static MultiFormatWriter mutiWriter = new MultiFormatWriter();
/**
* 直接调用此方法生成二维码
* @param content----------到达的链接地址（学生的内页）
* @param width------------二维码的宽度
* @param height-----------二维码的高度
* @param srcImagePath-----学生头像绝对路径(包括名字)
* @param destImagePath----生成的二维码存放的路径（包括名字）
* @param srcImageWidth-----学生头像宽
* @param srcImageHeight----学生头像高
*/
public static void createCode(String content, int width, int height, String srcImagePath, String destImagePath,int srcImageWidth,int srcImageHeight) {
//设置logo的宽
int IMAGE_WIDTH=srcImageWidth;
//设置logo的高
int IMAGE_HEIGHT=srcImageHeight;
int IMAGE_HALF_WIDTH = IMAGE_WIDTH / 2;
int FRAME_WIDTH = 2; //中间logo的边框
System.out.println(IMAGE_WIDTH);
try {
ImageIO.write(genBarcode(content, width, height, srcImagePath,IMAGE_WIDTH,IMAGE_HEIGHT,IMAGE_HALF_WIDTH,FRAME_WIDTH), "jpg", new File(destImagePath));
} catch (IOException e) {
e.printStackTrace();
} catch (WriterException e) {
e.printStackTrace();
}
}
/**
* 生成没带图片的二维码
* @param content
* @param width
* @param height
* @param destImagePath
*/
public static void createCode(String content, int width, int height, String destImagePath) {
int FRAME_WIDTH = 2; //中间logo的边框
try {
ImageIO.write(genBarcode(content, width, height,FRAME_WIDTH), "jpg", new File(destImagePath));
} catch (IOException e) {
e.printStackTrace();
} catch (WriterException e) {
e.printStackTrace();
}
}
private static BufferedImage genBarcode(String content, int width,
int height,int FRAME_WIDTH) throws WriterException,
IOException {
// 读取源图像
Map<EncodeHintType, Object> hint = new HashMap<EncodeHintType, Object>();
hint.put(EncodeHintType.CHARACTER_SET, "utf-8");
hint.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
// 生成二维码
BitMatrix matrix = mutiWriter.encode(content, BarcodeFormat.QR_CODE, width, height, hint);
matrix = updateBit(matrix, 0); //生成新的bitMatrix，重新设置边框
// 二维矩阵转为一维像素数组
int[] pixels = new int[matrix.getWidth() * matrix.getHeight()];
for (int y = 0; y < matrix.getHeight(); y++) {
for (int x = 0; x < matrix.getWidth(); x++) {
// 此处可以修改二维码的颜色，可以分别制定二维码和背景的颜色；
pixels[y * matrix.getWidth() + x] = matrix.get(x, y) ? 0xff000000 // 0x99562B
: 0xfffffff; //
}
}
BufferedImage bi = new BufferedImage(matrix.getWidth(), matrix.getHeight(),
BufferedImage.TYPE_INT_RGB);
bi.getRaster().setDataElements(0, 0, matrix.getWidth(), matrix.getWidth(), pixels);
bi = zoomInImage(bi,width,height);//根据size放大、缩小生成的二维码
return bi;
}
private static BufferedImage genBarcode(String content, int width,
int height, String srcImagePath,int IMAGE_WIDTH,int IMAGE_HEIGHT,int IMAGE_HALF_WIDTH,int FRAME_WIDTH) throws WriterException,
IOException {
// 读取源图像
BufferedImage scaleImage = scale(srcImagePath, IMAGE_WIDTH, IMAGE_HEIGHT, true);
int[][] srcPixels = new int[IMAGE_WIDTH][IMAGE_HEIGHT];
for (int i = 0; i < scaleImage.getWidth(); i++) {
for (int j = 0; j < scaleImage.getHeight(); j++) {
srcPixels[i][j] = scaleImage.getRGB(i, j);
}
}
Map<EncodeHintType, Object> hint = new HashMap<EncodeHintType, Object>();
hint.put(EncodeHintType.CHARACTER_SET, "utf-8");
hint.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
// 生成二维码
BitMatrix matrix = mutiWriter.encode(content, BarcodeFormat.QR_CODE, width, height, hint);
matrix = updateBit(matrix, 0); //生成新的bitMatrix，重新设置边框
// 二维矩阵转为一维像素数组
int halfW = matrix.getWidth() / 2;
int halfH = matrix.getHeight() / 2;
int[] pixels = new int[matrix.getWidth() * matrix.getHeight()];
for (int y = 0; y < matrix.getHeight(); y++) {
for (int x = 0; x < matrix.getWidth(); x++) {
// 读取图片
if (x > halfW - IMAGE_HALF_WIDTH
&& x < halfW + IMAGE_HALF_WIDTH
&& y > halfH - IMAGE_HALF_WIDTH
&& y < halfH + IMAGE_HALF_WIDTH) {
pixels[y * matrix.getWidth() + x] = srcPixels[x - halfW
+ IMAGE_HALF_WIDTH][y - halfH + IMAGE_HALF_WIDTH];
}
// 在图片四周形成边框
else if ((x > halfW - IMAGE_HALF_WIDTH - FRAME_WIDTH
&& x < halfW - IMAGE_HALF_WIDTH + FRAME_WIDTH
&& y > halfH - IMAGE_HALF_WIDTH - FRAME_WIDTH && y < halfH
+ IMAGE_HALF_WIDTH + FRAME_WIDTH)
|| (x > halfW + IMAGE_HALF_WIDTH - FRAME_WIDTH
&& x < halfW + IMAGE_HALF_WIDTH + FRAME_WIDTH
&& y > halfH - IMAGE_HALF_WIDTH - FRAME_WIDTH && y < halfH
+ IMAGE_HALF_WIDTH + FRAME_WIDTH)
|| (x > halfW - IMAGE_HALF_WIDTH - FRAME_WIDTH
&& x < halfW + IMAGE_HALF_WIDTH + FRAME_WIDTH
&& y > halfH - IMAGE_HALF_WIDTH - FRAME_WIDTH && y < halfH
- IMAGE_HALF_WIDTH + FRAME_WIDTH)
|| (x > halfW - IMAGE_HALF_WIDTH - FRAME_WIDTH
&& x < halfW + IMAGE_HALF_WIDTH + FRAME_WIDTH
&& y > halfH + IMAGE_HALF_WIDTH - FRAME_WIDTH && y < halfH
+ IMAGE_HALF_WIDTH + FRAME_WIDTH)) {
pixels[y * matrix.getWidth() + x] = 0xfffffff;
} else {
// 此处可以修改二维码的颜色，可以分别制定二维码和背景的颜色；
pixels[y * matrix.getWidth() + x] = matrix.get(x, y) ? 0xff000000 // 0x99562B
: 0xfffffff; //
}
}
}
// BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// image.getRaster().setDataElements(0, 0, width, height, pixels);
BufferedImage bi = new BufferedImage(matrix.getWidth(), matrix.getHeight(),
BufferedImage.TYPE_INT_RGB);
bi.getRaster().setDataElements(0, 0, matrix.getWidth(), matrix.getWidth(), pixels);
bi = zoomInImage(bi,width,height);//根据size放大、缩小生成的二维码
return bi;
}
/**
* 把传入的原始图像按高度和宽度进行缩放，生成符合要求的图标
*
* @param srcImageFile
* 源文件地址
* @param height
* 目标高度
* @param width
* 目标宽度
* @param hasFiller
* 比例不对时是否需要补白：true为补白; false为不补白;
* @throws IOException
*/
private static BufferedImage scale(String srcImageFile, int height, int width, boolean hasFiller) throws IOException {
double ratio = 0.0; // 缩放比例
File file = new File(srcImageFile);
BufferedImage srcImage = ImageIO.read(file);
Image destImage = srcImage.getScaledInstance(width, height, BufferedImage.SCALE_SMOOTH);
// 计算比例
if ((srcImage.getHeight() > height) || (srcImage.getWidth() > width)) {
if (srcImage.getHeight() > srcImage.getWidth()) {
ratio = (new Integer(height)).doubleValue() / srcImage.getHeight();
} else {
ratio = (new Integer(width)).doubleValue() / srcImage.getWidth();
}
AffineTransformOp op = new AffineTransformOp(AffineTransform.getScaleInstance(ratio, ratio), null);
destImage = op.filter(srcImage, null);
}
if (hasFiller) {// 补白
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D graphic = image.createGraphics();
graphic.setColor(Color.white);
graphic.fillRect(0, 0, width, height);
if (width == destImage.getWidth(null))
graphic.drawImage(destImage, 0,
(height - destImage.getHeight(null)) / 2,
destImage.getWidth(null), destImage.getHeight(null),
Color.white, null);
else
graphic.drawImage(destImage,
(width - destImage.getWidth(null)) / 2, 0,
destImage.getWidth(null), destImage.getHeight(null),
Color.white, null);
graphic.dispose();
destImage = image;
}
return (BufferedImage) destImage;
}
/**
* @param matrix
* @param margin二维码边框
* @return
*/
private static BitMatrix updateBit(BitMatrix matrix, int margin){
int tempM = margin*2;
int[] rec = matrix.getEnclosingRectangle(); //获取二维码图案的属性
int resWidth = rec[2] + tempM;
int resHeight = rec[3] + tempM;
BitMatrix resMatrix = new BitMatrix(resWidth, resHeight); // 按照自定义边框生成新的BitMatrix
resMatrix.clear();
for(int i= margin; i < resWidth- margin; i++){ //循环，将二维码图案绘制到新的bitMatrix中
for(int j=margin; j < resHeight-margin; j++){
if(matrix.get(i-margin + rec[0], j-margin + rec[1])){
resMatrix.set(i,j);
}
}
}
return resMatrix;
}
/**
* 图片放大缩小
*/
public static BufferedImage zoomInImage(BufferedImage originalImage, int width, int height){
BufferedImage newImage = new BufferedImage(width,height,originalImage.getType());
Graphics g = newImage.getGraphics();
g.drawImage(originalImage, 0,0,width,height,null);
g.dispose();
return newImage;
}
public static void main(String[] args) {
createCode("http://121.41.119.185/company/1.html", 300,300, "e:\\11111.jpg", "F:\\erwei8171.jpg",50,50);
//createCode("http://121.41.119.185/company/1.html", 300,300, "F:\\erwei817.jpg");
// createCode("http://www.tedu.cn", 94, 94, "d:\\hhh.jpg", "F:\\2015-01.jpg");
}
}
