本文章后端参考了网上大佬的写法
java 批量生成条形码，打包zip（springboot）_洛心尘8的博客-CSDN博客_java批量生成条形码
1.导入pom文件
com.google.zxing
core
3.3.3
com.google.zxing
javase
3.3.3
package com.lianzhan.estate.affairs.instrument;
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 java.awt.*;
import java.awt.image.BufferedImage;
import java.util.HashMap;
import java.util.Map;
public class Barcode {
/** 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 hints = new HashMap() {
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;
}
}
@PostMapping(value = "/barcode")
public void barCode(@RequestParam(value = "barcode" , required = false) List barcode,HttpServletResponse response) throws Exception {
System.out.println(barcode+"=============barcode===============");
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");
ZipOutputStream zos = new ZipOutputStream(response.getOutputStream());
if(barcode!=null) {
for (int i = 0; i < barcode.size(); i++) {
zos.putNextEntry(new ZipEntry(barcode.get(i) + ".png"));
ImageIO.write(BarCodeUtil.encode(barcode.get(i), true), "jpg", zos);
}
}else {
List infos = infoService.listAll();
System.out.println(infos+"=============info====================");
for (int i = 0; i /**
*
* @param reset 生成条形码多条
* @returns
*/
async createBarcode(path?: any) {
let name1 = 'barCode.zip'; //给下载的文件命名
const xhr = new XMLHttpRequest(); //创建对象
xhr.open('post', path);//post接收文件流
xhr.responseType = 'blob';
xhr.setRequestHeader('Access-Token', this.token['token']);
xhr.send();
/* 可以获取下载进度 */
xhr.addEventListener(
'progress',
function (event) {
// 响应头要有Content-Length
if (event.lengthComputable) {
// 下载进度 = 已下载 / 总大小
let percentComplete = event.loaded / event.total;
console.log(percentComplete); // 最后输出1
}
},
false
);
xhr.onload = function () {
if (this.status === 200 || this.status === 304) {
// 如果是IE10及以上，不支持download属性，采用msSaveOrOpenBlob方法，但是IE10以下也不支持msSaveOrOpenBlob
// if ('msSaveOrOpenBlob' in navigator) {
// navigator.msSaveOrOpenBlob(this.response, name1);
// return;
// }
// const blob = new Blob([this.response], { type: xhr.getResponseHeader('Content-Type') });
// const url = URL.createObjectURL(blob);
const url = URL.createObjectURL(this.response);
const a = document.createElement('a');
a.style.display = 'none';
a.href = url;
a.download = name1;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
}
};
}
/**
*
* @param reset 选择生成条形码
* @returns
*/
barcode: any = [];
selectCreate() {
this.barcode = this.ztable.checkedDataIds; //获取被选中的数据
console.log(this.ztable.listOfCurrentPageData,'========barcode=========')
let path = `${environment['frontPath']}/ml/info/barcode?barcode=${this.barcode}`;
this.createBarcode(path);
}
/**
*
* @param reset 全部生成条形码
* @returns
*/
totalCreate() {
let path = `${environment['frontPath']}/ml/info/barcode`;
this.createBarcode(path);
}import { DA_SERVICE_TOKEN, ITokenService } from '@delon/auth';
token: any
constructor(@Inject(DA_SERVICE_TOKEN) private tokenService: ITokenService){}
ngOnInit(): void {
this.listPageData();
this.token = this.tokenService.get();
}欢迎分享，转载请注明来源：内存溢出
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