批量生成条形码图片 打包zip (自测有效)

pom引入jra包

<!--        批量生成条形码-->
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>core</artifactId>
            <version>3.2.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>javase</artifactId>
            <version>3.2.0</version>
        </dependency>

完整Controller代码

package com.hx.demo.controller;

import com.hx.demo.Util.BarCodeUtil;
import org.omg.PortableServer.LIFESPAN_POLICY_ID;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.swing.*;
import java.lang.reflect.Array;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/********************************************
 * @author     ：Whx
 * @className  : 
 * @description： TODO
 * @date       ：2021/10/3 15:12
 * ******************************************/
@Controller
public class BarCodeUtils {
    // 条形码接口
    @RequestMapping("/getBarCode")
    public void getBarCode(HttpServletResponse response, ArrayList<String> list) throws Exception{
        ZipOutputStream zos =null;
        String  downloadFilename = "导出条码";
        //转换中文否则可能会产生乱码
        downloadFilename = URLEncoder.encode(downloadFilename, "UTF-8");
        // 指明response的返回对象是文件流
        response.setContentType("application/octet-stream");
        // 设置在下载框默认显示的文件名
        response.setHeader("Content-Disposition", "attachment;filename=" + downloadFilename+".zip");
        zos = new ZipOutputStream(response.getOutputStream());
        for (String o : list) {
            zos.putNextEntry(new ZipEntry(o+".png"));
            ImageIO.write(BarCodeUtil.encode(o,true),"jpg",zos);
        }
        zos.flush();
        zos.close();
    }
}

完整BarCodeUtil代码

package com.hx.demo.Util;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.oned.Code128Writer;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.HashMap;
import java.util.Map;

/**
 *
 */
@Service
public class BarCodeUtil {

    /**
     * 生成code128条形码
     *
     * @param height        条形码的高度
     * @param width         条形码的宽度
     * @param message       要生成的文本
     * @param withQuietZone 是否两边留白
     * @param hideText      隐藏可读文本
     * @return 图片对应的字节码
     */



    /** 条形码宽度 */
    private static final int WIDTH = 332;

    /** 条形码高度 */
    private static final int HEIGHT = 50;

    /** 加文字 条形码 */
    private static final int WORDHEIGHT = 80;

    /**
     * 设置 条形码参数
     */
    private static Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>() {
        private static final long serialVersionUID = 1L;
        {
            // 设置编码方式
            put(EncodeHintType.CHARACTER_SET, "utf-8");
        }
    };

    /**
     * 生成 图片缓冲
     * @author fxbin
     * @param vaNumber  VA 码
     * @return 返回BufferedImage
     */
    public static BufferedImage getBarCode(String vaNumber){
        try {
            Code128Writer writer = new Code128Writer();
            // 编码内容, 编码类型, 宽度, 高度, 设置参数
            BitMatrix bitMatrix = writer.encode(vaNumber, BarcodeFormat.CODE_128, WIDTH, HEIGHT, hints);
            return MatrixToImageWriter.toBufferedImage(bitMatrix);
        } catch (WriterException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 把带logo的条形码下面加上文字
     * @author fxbin
     * @param image  条形码图片
     * @param words  文字
     * @return 返回BufferedImage
     */
    public static BufferedImage insertWords(BufferedImage image, String words,boolean needCompress){
        // 新的图片，把带logo的二维码下面加上文字
        if (StringUtils.isNotEmpty(words)) {

            BufferedImage outImage = new BufferedImage(WIDTH, WORDHEIGHT, BufferedImage.TYPE_INT_RGB);

            Graphics2D g2d = outImage.createGraphics();

            // 抗锯齿
            setGraphics2D(g2d);
            // 设置白色
            setColorWhite(g2d);

            // 画条形码到新的面板
            g2d.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null);
            // 画文字到新的面板
            Color color=new Color(0, 0, 0);
            g2d.setColor(color);
            // 字体、字型、字号
            g2d.setFont(new Font("微软雅黑", Font.PLAIN, 18));
            //文字长度
            int strWidth = g2d.getFontMetrics().stringWidth(words);
            //总长度减去文字长度的一半  （居中显示）
            int wordStartX=(WIDTH - strWidth) / 2;
            //height + (outImage.getHeight() - height) / 2 + 12
            int wordStartY=HEIGHT+20;

            // 画文字
            g2d.drawString(words, wordStartX, wordStartY);
            g2d.dispose();
            outImage.flush();
            return outImage;
        }
        return null;
    }

    /**
     * 设置 Graphics2D 属性  （抗锯齿）
     * @param g2d  Graphics2D提供对几何形状、坐标转换、颜色管理和文本布局更为复杂的控制
     */
    private static void setGraphics2D(Graphics2D g2d){
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_DEFAULT);
        Stroke s = new BasicStroke(1, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER);
        g2d.setStroke(s);
    }

    /**
     * 设置背景为白色
     * @param g2d Graphics2D提供对几何形状、坐标转换、颜色管理和文本布局更为复杂的控制
     */
    private static void setColorWhite(Graphics2D g2d){
        g2d.setColor(Color.WHITE);
        //填充整个屏幕
        g2d.fillRect(0,0,600,600);
        //设置笔刷
        g2d.setColor(Color.BLACK);
    }

    public static BufferedImage encode(String content,boolean needCompress) throws Exception {
        BufferedImage image = insertWords(getBarCode(content),content,needCompress);
        return image;
    }
}

标签：条形码,zip,批量,BufferedImage,param,g2d,import,com
来源： https://blog.csdn.net/blank295706852/article/details/120595524