package irainbow.zxing;

import java.io.File;

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;

//生成二維碼

public class creatQRcode {

??

public static ?void main(String[] args){

//定義二維碼的寬度和高度

int width=300;

int height=300;

String format="png";//指定圖片的格式為"png"

String content="rainbow,you must be happy evey day";//定義二維碼的內容

//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.H);

? ? ? ? //設置容錯等級，二維碼糾錯等級為H級，容錯等級越高，容量約小

hints.put(EncodeHintType.MARGIN,5);

? ? ? ? //邊框距離為5

//生成二維碼

try{

? BitMatrix bitMatrix = new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE,width,height,hints);

? Path file = new File("D:/code/1.png").toPath();//設置保存路徑

? MatrixToImageWriter.writeToPath(bitMatrix, format,file);//輸出圖像

}?

catch (Exception e) {e.printStackTrace();

}

}

}