package com.imooc.zxing;

import java.io.File;
import java.nio.file.Path;
import java.util.HashMap;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class CreateQRCode {

?public static void main(String[] args) {
??int width = 300;
??int height = 300;
??String format = "png";
??String content = "www.xianlaiwan.cn";
??
??//定義二維碼的參數
??HashMap hints = new HashMap();
??hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
??hints.put(EncodeHintType.ERROR_CORRECTION,ErrorCorrectionLevel.M);
??hints.put(EncodeHintType.MARGIN, 2);
??
??
??
??try {
???BitMatrix bitMatrix=?new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height,hints);
???Path file = new File("D:/code/img.png").toPath();
???MatrixToImageWriter.writeToPath(bitMatrix, format, file);
???
??} catch (Exception e) {
???e.printStackTrace();
??}
??

?}

}

******************************錯誤代碼是

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/zxing/EncodeHintType
?at com.imooc.zxing.CreateQRCode.main(CreateQRCode.java:24)
Caused by: java.lang.ClassNotFoundException: com.google.zxing.EncodeHintType
?at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
?at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
?at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
?... 1 more