ZXing 生成二维码去掉白边(padding)
import java.util.Map; import com.google.zxing.EncodeHintType; import com.google.zxing.WriterException; import com.google.zxing.common.BitMatrix; import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; import com.google.zxing.qrcode.encoder.ByteMatrix; import com.google.zxing.qrcode.encoder.Encoder; import com.google.zxing.qrcode.encoder.QRCode; /** * This object renders a QR Code as a BitMatrix 2D array of greyscale values. * @description 因为该实现存在很大的白边（padding），因此将白边去掉 * * @author dswitkin@google.com (Daniel Switkin) */ public final class QRCodeWriter { private static final int QUIET_ZONE