/*生成支付二维码,不多说,直接看代码*/
package com.sunwah.wxpay.util;
import java.awt.image.BufferedImage;
import java.util.HashMap;
import java.util.Map;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;
/**
*
* @author lhm
*
*/
public class MatrixToImageWriter {
private static final int BLACK = 0xFF000000;
private static final int WHITE = 0xFFFFFFFF;
/**
*二维码信息写成JPG BufferedImage
* @param content 二维码信�?
* @return JPG BufferedImage
*/
public static BufferedImage writeInfoToJpgBuff(String content){
BufferedImage re=null;
MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
Map hints = new HashMap();
hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
try {
BitMatrix bitMatrix = multiFormatWriter.encode(content,
BarcodeFormat.QR_CODE, 250, 250, hints);
re=MatrixToImageWriter.toBufferedImage(bitMatrix);
} catch (Exception e) {
e.printStackTrace();
}
return re;
}
/**
* 根据二维矩阵的碎�? 生成对应的二维码图像缓冲
* @param matrix 二维矩阵的碎�? 包含 宽高 行,字节
* @see com.google.zxing.common.BitMatrix
* @return 二维码图像缓�?
*/
public static BufferedImage toBufferedImage(BitMatrix matrix) {
int width = matrix.getWidth();
int height = matrix.getHeight();
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
image.setRGB(x, y, matrix.get(x, y) ? BLACK : WHITE);
}
}
return image;
}
}