个回答

• 慕粉1523472586

  2017-05-24 13:49:34

  package com.wang.test;

  
  

  import java.awt.Color;

  import java.awt.Graphics2D;

  import java.awt.Image;

  import java.awt.image.BufferedImage;

  import java.io.File;

  import javax.imageio.ImageIO;

  import com.swetake.util.Qrcode;

  
  

  
  

  /**

   * 生成二维码

   * @author Developer Name

   *

   */

  public class Test3 {

  public static void main(String[] args) throws Exception {

  String content = "ART M20327,#115664742,9TXZFHPB00185";

  String outPath = "D:\\qrCode\\code.jpg";

  String logoPath = "D:\\qrCode\\logo.png";

  creatQrCode(1, 0, content, outPath, logoPath);

  }

  
  

  /**

  * 生成二维码

  * @param version   版本

  * @param content   内容

  * @param outPath   输出路径

  * @param logoPath  图标路径

  * @param pixoff    偏移量

  * @throws Exception

  */

  public static void creatQrCode(int version,  int pixoff, String content, String outPath,

  String logoPath) throws Exception {

  
  

  // 图片尺寸

  int width = 67 + 12 * (version - 1);

  int height = 67 + 12 * (version - 1);

  //int width = 30;

  //int height = 30;

  
  

  // 设置二维码排错率，可选L(7%)、M(15%)、Q(25%)、H(30%)，排错率越高可存储的信息越少，但对二维码清晰度的要求越小

  Qrcode code = new Qrcode();

  code.setQrcodeErrorCorrect('M');

  code.setQrcodeEncodeMode('B');

  
  

  // 设置设置二维码尺寸，取值范围1-40，值越大尺寸越大，可存储的信息越大

  code.setQrcodeVersion(version);

  
  

  BufferedImage bufferImage = new BufferedImage(width, height,

  BufferedImage.TYPE_INT_RGB);

  Graphics2D gs = bufferImage.createGraphics();

  // 设置背景颜色

  gs.setBackground(Color.WHITE);

  // 设定图像颜色> BLACK

  gs.setColor(Color.BLACK);

  //清空画板

  gs.clearRect(0, 0, width, height);

  
  

  // 获得内容的字节数组，设置编码格式

  byte[] contentBytes = content.getBytes("gb2312");

  // 输出内容> 二维码

  if (contentBytes.length > 0 && contentBytes.length < 120) {

  boolean[][] codeOut = code.calQrcode(contentBytes);

  for (int i = 0; i < codeOut.length; i++) {

  for (int j = 0; j < codeOut.length; j++) {

  if (codeOut[j][i]) {

  gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);

  }

  }

  }

  } else {

  throw new Exception("QRCode content bytes length = " + contentBytes.length + " not in [0, 800].");

  }

  createPhotoAtCenter(bufferImage, logoPath);

  gs.dispose();

  bufferImage.flush();

  
  

  ImageIO.write(bufferImage, "jpg", new File(outPath));

  }

  
  

  /**

  * 加入logo

  * 

  * @param bufImg     要添加的二维码对象

  * @param logoPath   要添加logo的路径

  * @return

  * @throws Exception

  */

  private static BufferedImage createPhotoAtCenter(BufferedImage bufImg, String logoPath) throws Exception {

  Image image = ImageIO.read(new File(logoPath));

  Graphics2D graphics = bufImg.createGraphics();

  
  

  // 获取bufImg的中间位置

  int centerX = bufImg.getMinX() + bufImg.getWidth() / 2 - 30 / 2;

  int centerY = bufImg.getMinY() + bufImg.getHeight() / 2 - 30 / 2;

  graphics.drawImage(image, centerX + 35, centerY, 30, 30, null);

  graphics.dispose();

  bufImg.flush();

  return bufImg;

  }

  }

  
  

  1

• 只要我想

  2017-05-10 11:08:15

  少导个包import java.io.File;

  debug一下看看或把代码都发给我

  0