用com.google.zxing生成QR code矩阵二维码

首先需要去下载一下google.zxing jar包

import java.io.File;
import java.util.Hashtable;

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;

public class TestQrcode {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String str = "胡汉三：男	座右铭：Hard Word Pays Off 天道酬勤......";// 二维码内容  
		String path = "E:\\我的二维码\\hhs3.png";  
		BitMatrix byteMatrix;  
		try {

			Hashtable hints = new Hashtable();
			hints.put(EncodeHintType.MARGIN, 1); //设置二维码空白边框的大小 1-4，1是最小 4是默认的国标

			byteMatrix = new MultiFormatWriter().encode(new String(str.getBytes("UTF-8"),"iso-8859-1"),  
					BarcodeFormat.QR_CODE, 200, 200,hints);

			File file = new File(path);  
			MatrixToImageWriter.writeToFile(byteMatrix, "png", file);  
		}  catch (Exception e) {
			e.printStackTrace();
		}  


	}

}

生成的二维码！！！