String url = String.format("https://www.easck.com/pay/unifiedorder");
String entity = genProductArgs();
Log.e("orion", entity);
byte[] buf = Util.httpPost(url, entity);
String content = new String(buf);
Log.e("orion", content);
Map<String, String> xml = decodeXml(content);
第二步：生成微信支付参数
appId对应APP应用的APPID，partnerId对应商户号，prepayId对应第一步获得的预支付订单，packageValue取值Sign=WXPay，nonceStr是一串随机数，timeStamp生成的时间戳，sign对应APP签名
》支付参数配置
private void genPayReq() {
req.appId = Constants.APP_ID;
req.partnerId = Constants.MCH_ID;
req.prepayId = resultunifiedorder.get("prepay_id");
req.packageValue = "Sign=WXPay";
req.nonceStr = genNonceStr();
req.timeStamp = String.valueOf(genTimeStamp());
List<NameValuePair> signParams = new LinkedList<NameValuePair>();
signParams.add(new BasicNameValuePair("appid", req.appId));
signParams.add(new BasicNameValuePair("noncestr", req.nonceStr));
signParams.add(new BasicNameValuePair("package", req.packageValue));
signParams.add(new BasicNameValuePair("partnerid", req.partnerId));
signParams.add(new BasicNameValuePair("prepayid", req.prepayId));
signParams.add(new BasicNameValuePair("timestamp", req.timeStamp));
req.sign = genAppSign(signParams);
sb.append("signn" + req.sign + "nn");
show.setText(sb.toString());
Log.e("orion", signParams.toString());
}
》nonceStr随机数
private String genNonceStr() {
Random random = new Random();
return MD5.getMessageDigest(String.valueOf(random.nextInt(10000))
.getBytes());
}
