<html>
<body>
<img width="100px" height="100px;" src="data:image/jpg;base64,二维码图片转成的字符串" />
</body>
<body>
<img width="100px" height="100px;" src="data:image/jpg;base64,二维码图片转成的字符串" />
</body>
</html>
二维码字符串转图片：(axis.jar)
String qrCodeStr = “......”；//二维码字符串
String qrCodeUrl = "/Users/test";//二维码图片存放路径
byte[] buf=Base64.decode(qrCodeStr);
try {
FileOutputStream fos = new FileOutputStream(qrCodeUrl);
fos.write(buf);
fos.close();
} catch (Exception e) {
......
}