package org.jeecg.modules.tms.utils;
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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.client.j2se.MatrixToImageWriter;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.QRCodeWriter;
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import liquibase.pro.packaged.S;
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import lombok.extern.slf4j.Slf4j;
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import org.jeecg.common.api.vo.Result;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import javax.print.*;
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import javax.print.attribute.HashPrintRequestAttributeSet;
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import javax.print.attribute.PrintRequestAttributeSet;
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import java.awt.print.*;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayOutputStream;
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import java.io.OutputStream;
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import java.util.*;
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@RestController
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@RequestMapping("/tms/qyCode")
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@Slf4j
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public class QrCodePrinterUtils{
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@GetMapping("/generate")
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public Result<Map<String, String>> generateQrCode() throws Exception {
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String content = "Q201204330002-0001";
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// 生成二维码图片（Base64）
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ByteArrayOutputStream os = new ByteArrayOutputStream();
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generateQRCodeImage(content, 200, 200, os);
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String base64Img = "data:image/png;base64," + Base64.getEncoder().encodeToString(os.toByteArray());
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// 返回结果
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Map<String, String> result = new HashMap<>();
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result.put("image", base64Img);
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result.put("content", content);
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return Result.OK(result);
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}
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public static void generateQRCodeImage(String text, int width, int height, OutputStream os) throws Exception {
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QRCodeWriter qrCodeWriter = new QRCodeWriter();
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BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
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MatrixToImageWriter.writeToStream(bitMatrix, "PNG", os);
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}
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public static String generateBacthQRCode(String content, int width, int height) {
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try {
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Map<EncodeHintType, Object> hints = new HashMap<>();
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hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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hints.put(EncodeHintType.MARGIN, 1);
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BitMatrix matrix = new MultiFormatWriter().encode(
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content,
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BarcodeFormat.QR_CODE,
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width,
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height,
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hints
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);
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ByteArrayOutputStream os = new ByteArrayOutputStream();
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MatrixToImageWriter.writeToStream(matrix, "PNG", os);
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return "data:image/png;base64," +
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Base64.getEncoder().encodeToString(os.toByteArray());
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} catch (Exception e) {
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throw new RuntimeException("生成二维码失败", e);
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}
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}
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@GetMapping("/batchGenerate")
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public Result<List<Map<String,String>>> generateBatchQrCode(){
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List<Map<String,String>> results = new ArrayList<>();
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List<String> contentList = new ArrayList<>();
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contentList.add("Q201204330002-0001");
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contentList.add("Q201204330002-0002");
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contentList.add("Q201204330002-0003");
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for(String content : contentList){
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Map<String,String> result = new HashMap<>();
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result.put("content",content);
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result.put("image",generateBacthQRCode(content, 200, 200));
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// 生成二维码图片（Base64）
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results.add(result);
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}
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return Result.OK(results);
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}
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}
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