-----引入jar 包
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
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;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String param = request.getParameter("param");
int width = 300;
int height = 300;
String format = "jpg";
Map<EncodeHintType, Object> ht = new
HashMap<EncodeHintType,Object>();
ht.put(EncodeHintType.CHARACTER_SET, "UTF-8");
BitMatrix bitMatrix = null;
try {
bitMatrix = new MultiFormatWriter().encode(param,BarcodeFormat.QR_CODE, width, height, ht);
} catch (WriterException e) {
e.printStackTrace();
}
MatrixToImageWriter.writeToStream(bitMatrix, format,response.getOutputStream());
}
JAVA 生成二维码 代码 显示到页面
猜你喜欢
转载自keney-oak.iteye.com/blog/2254650
今日推荐
周排行