完成二维码生成代码
This commit is contained in:
wen
parent
7bd3fe22ca
commit
4096947015
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package com.xhpc.charging.station.utils.img;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.Graphics2D;
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import java.awt.RenderingHints;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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/**
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* @Author WH
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* @Date 2021/9/10 17:44
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* @Description 图片工具拼接工具类
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* @Param
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* @Return
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* @Since version-1.0
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*/
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public class ImageUtil {
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private BufferedImage tempImg = null;
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public static void main(String[] args) throws Exception {
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ImageUtil img = new ImageUtil();
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img.createXhImg();
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}
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public boolean createXhImg() throws IOException {
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tempImg = this.createBottom(new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\BottomImg.png"));
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tempImg = this.addQrCodeToBottom(tempImg);
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tempImg = this.addBottomLogo(tempImg);
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tempImg = this.writeSerialNumber(tempImg);
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tempImg = this.addHeader(tempImg);
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return true;
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}
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/**
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*
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* @param source 合成了二维码、底部Logo、终端编号、头部的最终图
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* @return 添加了顶部文字的最终图片
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* @throws IOException
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*/
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private BufferedImage addHeader(BufferedImage source) throws IOException {
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Graphics2D g2 = source.createGraphics();
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g2.setColor(Color.BLACK);
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// //顶部占位矩形
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// g2.fillRect(0,0,400,190);
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//写入桩部分
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writePile(source);
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//写入枪部分
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writeGun(source);
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//生成的图片的存放路径
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File dest = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha8.png");
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ImageIO.write(source, "png", dest);
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return source;
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}
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/**
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* 顶部文字右边部分
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* @param source 合成了二维码、底部Logo、终端编号、枪部分部分的底图
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* @return 返回最终合成的图
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*/
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private BufferedImage writeGun(BufferedImage source) throws IOException {
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Graphics2D g2 = source.createGraphics();
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g2.setColor(Color.WHITE);
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//提前设置文字参数，防止生成的文字带有锯齿
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g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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g2.setFont(new Font("黑体",Font.BOLD,130));
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g2.drawString("A",250,180);
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g2.setFont(new Font("楷体",Font.BOLD,60));
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g2.drawString("枪",320,174);
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//生成的图片的存放路径
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File dest = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha7.png");
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ImageIO.write(source, "png", dest);
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return source;
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}
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/**
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* 顶部文字左边部分
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* @param source
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* @return
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* @throws IOException
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*/
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private BufferedImage writePile(BufferedImage source) throws IOException{
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Graphics2D g2 = source.createGraphics();
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g2.setColor(Color.WHITE);
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//提前设置文字参数，防止生成的文字带有锯齿
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g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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//在头顶设置场站名称：
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g2.setFont(new Font("楷体",Font.BOLD,24));
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//后期改成居中，不写死
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g2.drawString("小华充电团结平安村充电站",40,70);
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g2.setFont(new Font("楷体",Font.BOLD,48));
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g2.drawString("99号桩",25,154);
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g2.setFont(new Font("楷体",Font.BOLD,18));
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// 桩号下方的编码：
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// g2.drawString("69852145895458",34,163);
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//生成的图片的存放路径
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File dest = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha6.png");
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ImageIO.write(source, "png", dest);
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return source;
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}
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/**
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*
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* @param source 合成了二维码、底部Logo的底图
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* @return 添加了终端编号的底图
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* @throws IOException
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*/
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private BufferedImage writeSerialNumber(BufferedImage source) throws IOException {
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Graphics2D g2 = source.createGraphics();
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//提前设置文字参数，防止生成的文字带有锯齿
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g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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g2.setFont(new Font("楷体",Font.BOLD,24));
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g2.setColor(Color.WHITE);
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g2.drawRect(10,210,380,70);
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g2.drawString("终端编码：6985214589545801",27,255);
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//生成的图片的存放路径
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File dest = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha5.png");
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ImageIO.write(source, "png", dest);
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return source;
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}
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/**
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*
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* @param source 合成了二维码的底图
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* @return 添加了底部Logo的底图
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* @throws IOException
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*/
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private BufferedImage addBottomLogo(BufferedImage source) throws IOException {
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//底部Logo存放位置
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File QrCodeImgPath = new File("D:\\Enterprise_Resources\\XiaoHuaLogoImg\\BottomLogo.png");
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//使用ImageIO，将logo图片加载到内存中
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BufferedImage QrCodeImg = ImageIO.read(QrCodeImgPath);
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Graphics2D g2 = source.createGraphics();
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g2.drawImage(QrCodeImg,10,700,380,80,null);
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//生成的图片的存放路径
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File dest = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha4.png");
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ImageIO.write(source, "png", dest);
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return source;
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}
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/**
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*
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* @param source 底图
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* @return 添加了二维码的底图
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* @throws IOException
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*/
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private BufferedImage addQrCodeToBottom(BufferedImage source) throws IOException {
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//二维码图片存放位置
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File QrCodeImgPath = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\2021091011050707669852145895458.png");
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//使用ImageIO，将图片加载到内存中
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BufferedImage QrCodeImg = ImageIO.read(QrCodeImgPath);
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Graphics2D g2 = source.createGraphics();
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g2.drawImage(QrCodeImg,10,300,380,380,null);
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//生成的图片的存放路径
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File dest = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha3.png");
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ImageIO.write(source, "png", dest);
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return source;
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}
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/**
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* 创建图片底图
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* @return
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*/
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private BufferedImage createBottom(File bottomFile) throws IOException {
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int width = 400; //底图的宽
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int height = 800; //底图的高
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//设置生成的底图的存放路径
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File file = new File("D:\\Enterprise_Resources\\XiaoHuaQrImgs\\haha2.png");
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//生成图片画布
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BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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//生成用于该画布的画笔对象
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Graphics2D g2 = bi.createGraphics();
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//设置画笔颜色为蓝色
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g2.setColor(Color.BLUE);
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//填充指定矩形区域的颜色
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g2.fillRect(0,0,400,800);
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//载入生成的二维码图片
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BufferedImage bottomImg = ImageIO.read(bottomFile);
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g2.drawImage(bottomImg,0,0,null);
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//生成底图
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ImageIO.write(bi, "png", file);
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return bi;
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}
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}
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package com.xhpc.charging.station.utils.img;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import com.google.zxing.qrcode.encoder.QRCode;
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import javax.imageio.ImageIO;
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import java.awt.*;
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import java.awt.geom.RoundRectangle2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.util.Hashtable;
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/**
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*
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* @ClassName: QRCodeUtil
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* @Description: 二维码生成工具类
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* @author w
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*
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*/
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public class QRCodeUtil {
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private static final String CHARSET = "utf-8";
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private static final String FORMAT_NAME = "PNG";
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// 二维码尺寸
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private static final int QRCODE_SIZE = 400;
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// LOGO宽度
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private static final int WIDTH = 100;
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// LOGO高度
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private static final int HEIGHT = 100;
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private static BufferedImage createImage(String content, String imgPath,
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boolean needCompress) throws Exception {
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Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
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hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
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hints.put(EncodeHintType.MARGIN, 1);
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BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
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BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
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int width = bitMatrix.getWidth();
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int height = bitMatrix.getHeight();
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BufferedImage image = new BufferedImage(width, height,
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BufferedImage.TYPE_INT_RGB);
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for (int x = 0; x < width; x++) {
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for (int y = 0; y < height; y++) {
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image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
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: 0xFFFFFFFF);
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}
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}
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if (imgPath == null || "".equals(imgPath)) {
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return image;
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}
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// 插入图片
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QRCodeUtil.insertImage(image, imgPath, needCompress);
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return image;
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}
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/**
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* 插入LOGO
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*
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* @param source
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* 二维码图片
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* @param imgPath
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* LOGO图片地址
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* @param needCompress
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* 是否压缩
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* @throws Exception
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*/
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private static void insertImage(BufferedImage source, String imgPath,
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boolean needCompress) throws Exception {
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File file = new File(imgPath);
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if (!file.exists()) {
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System.err.println(""+imgPath+" 该文件不存在！");
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return;
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}
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Image src = ImageIO.read(new File(imgPath));
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int width = src.getWidth(null);
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int height = src.getHeight(null);
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if (needCompress) { // 压缩LOGO
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if (width > WIDTH) {
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width = WIDTH;
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}
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if (height > HEIGHT) {
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height = HEIGHT;
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}
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Image image = src.getScaledInstance(width, height,
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Image.SCALE_SMOOTH);
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BufferedImage tag = new BufferedImage(width, height,
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BufferedImage.TYPE_INT_RGB);
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Graphics g = tag.getGraphics();
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g.drawImage(image, 0, 0, null); // 绘制缩小后的图
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g.dispose();
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src = image;
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}
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// 插入LOGO
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Graphics2D graph = source.createGraphics();
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int x = (QRCODE_SIZE - width) / 2;
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int y = (QRCODE_SIZE - height) / 2;
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graph.drawImage(src, x, y, width, height, null);
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Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
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graph.setStroke(new BasicStroke(3f));
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graph.draw(shape);
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graph.dispose();
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}
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/**
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* 生成二维码(内嵌LOGO)
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*
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* @param content
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* 内容
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* @param imgPath
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* LOGO地址
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* @param destPath
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* 存放目录
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* @param needCompress
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* 是否压缩LOGO
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* @param fileName
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* 生成的图片名称
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* @return QrCodeImg
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* 生成好的二维码图片
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* @throws Exception
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*/
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public static File encode(String content, String imgPath, String destPath,
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boolean needCompress,String fileName) throws Exception {
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BufferedImage image = QRCodeUtil.createImage(content, imgPath,
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needCompress);
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mkdirs(destPath);
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//添加变量接收，以获取生成好的二维码图片
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File QrCodeImg = new File(destPath + "/" + fileName);
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ImageIO.write(image, FORMAT_NAME, QrCodeImg);
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return QrCodeImg;
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}
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/**
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* 当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常)
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* @param destPath 存放目录
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*/
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public static void mkdirs(String destPath) {
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File file =new File(destPath);
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//当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常)
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if (!file.exists() && !file.isDirectory()) {
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file.mkdirs();
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}
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}
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}
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@ -0,0 +1,65 @@
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package com.xhpc.charging.station.utils.img;
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import cn.hutool.core.date.DateUtil;
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import com.aliyun.oss.OSSClient;
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import com.xhpc.charging.station.mapper.XhpcImgMapper;
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import com.xhpc.common.domain.XhpcTerminal;
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import org.springframework.core.env.Environment;
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import java.io.File;
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import java.util.Date;
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public class QrImgUtils {
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/**
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* @Author WH
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* @Date 2021/9/8 15:55
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* @Description upload images to Server
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* @Param [xhpcTerminal, chargingPileId, environment, xhpcImgMapper]
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* @Return void
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* @Since version-1.0
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*/
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public static void uploadImg(XhpcTerminal xhpcTerminal, String serialNumber, Environment environment, XhpcImgMapper xhpcImgMapper) {
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//生成桩的二维码图片
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//1.生成二维码链接内容：
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StringBuilder prefix = new StringBuilder("https://xhpc.scxhua.com?pNum=");
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String QrContent = prefix.append(xhpcTerminal.getSerialNumber()).toString();
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//2.生成图片：
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try {
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//2.1生成指定规则的图片名
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String fileName = DateUtil.format(new Date(), "yyyyMMddHHmmssSSS") + serialNumber + ".png";
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//2.2获取生成的二维码图片
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File QrCode = QRCodeUtil.encode(QrContent, environment.getProperty("oss.imgPath"), environment.getProperty("oss.destPath"), true, fileName);
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//2.3拼接成完整图片
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ImageUtil imageUtil = new ImageUtil();
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boolean File = imageUtil.createXhImg();
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//3.上传图片至服务器
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// 创建OSSClient实例
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OSSClient ossClient = new OSSClient(environment.getProperty("oss.endpoint"), environment.getProperty("oss.access-key"), environment.getProperty("oss.secret-key"));
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// 上传文件流
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ossClient.putObject(environment.getProperty("oss.bucket-name"), xhpcTerminal.getPileSerialNumber() + "/" + fileName, new File(environment.getProperty("oss.destPath") + "\\" + fileName));
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ossClient.shutdown();
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//4.将生成的图片的文件名和对应的终端的id放入数据库xhpc_img表中
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Long terminalId = xhpcTerminal.getTerminalId();
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xhpcImgMapper.insert(fileName, terminalId);
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//4.删除生成的二维码图片
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// File QrImg = new File(environment.getProperty("oss.destPath") + "\\" + fileName);
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// if (QrImg.exists()) {
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// QrImg.delete();
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// } else {
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// throw new RuntimeException("名字为" + fileName + "的二维码不存在");
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// }
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} catch (Exception e) {
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e.printStackTrace();
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System.out.println(e.getMessage());
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}
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}
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||||
}
|
||||
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