Path file出錯

Path file=new File("D:/迅雷下載/img.png")
.toPath（）；一直出錯是怎么回事

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2017-01-06

源自：Java生成二維碼 6-2

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2 回答

qq_殤_49
2017-03-05

你知道那個包怎么引入呢？

0 回復(fù) 有任何疑惑可以回復(fù)我~

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慕雪9202260
2017-01-09

//你的問題可能是引入的包不對

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.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

/**
?* @descrption:生成二維碼
?* @author pwu
?*
?*/
public class CreateQRcode {
?? ?public static void main(String[] args) {
?? ??? ?int width=300;
?? ??? ?int height=300;
?? ??? ?String format="png";
?? ??? ?String contents="http://idcbgp.cn";
?? ??? ?
?? ??? ?//定義二維碼的參數(shù)
?? ??? ?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(contents, BarcodeFormat.QR_CODE, width, height,hints);
?? ??? ??? ?Path file = new File("D:/Qrcode-zxing.png").toPath();
?? ??? ??? ?MatrixToImageWriter.writeToPath(bitMatrix, format, file);
?? ??? ??? ?
?? ??? ?} catch (Exception e) {
?? ??? ??? ?// TODO Auto-generated catch block
?? ??? ??? ?e.printStackTrace();
?? ??? ?}
?? ??? ?
?? ??? ?
?? ?}
}