微信扫码支付遇到的问题
原生支付URL参数错误
回调接口URL有回调,但是接收不到参数
商户后台返回的数据字段结构不合法
获取商户订单信息超时或者商户返回的httpcode非200
解决问题
原生支付URL参数错误
这个错误一般会出现在获取到二维码URL之后生成二维码微信扫码的时候。如果你出现此类型的问题请检查
1、生成二维码所需参数列表中参数是否有错误(区分大小写)
2、参数中签名sign时候正确 签名算法 签名校验工具
以下是生成二维码URL的代码
/** * * @author Javen * 2016年5月14日 * 扫码支付获取二维码URL(模式一) */ public String getCodeUrl(){ String url="weixin://wxpay/bizpayurl?sign=XXXXX&appid=XXXXX&mch_id=XXXXX&product_id=XXXXX&time_stamp=XXXXX&nonce_str=XXXXX"; String product_id="001"; String timeStamp=Long.toString(System.currentTimeMillis() / 1000); String nonceStr=Long.toString(System.currentTimeMillis()); Map<String, String> packageParams = new HashMap<String, String>(); packageParams.put("appid", appid); packageParams.put("mch_id", partner); packageParams.put("product_id",product_id); packageParams.put("time_stamp", timeStamp); packageParams.put("nonce_str", nonceStr); String packageSign = PaymentKit.createSign(packageParams, paternerKey); return StringUtils.replace(url, "XXXXX", packageSign,appid,partner,product_id,timeStamp,nonceStr); }
回调接口URL有回调,但是接收不到参数
Enumeration
while (en.hasMoreElements()) { Object o= en.nextElement(); System.out.println(o.toString()+"="+getPara(o.toString())); }
以上代码中输出的参数都为NULL
由于官方的文档描述不是很清楚,大家都以为回调请求将带productid和用户的openid等参数是以普通的参数一样,其实这个回调返回的参数是一个XML输入流
HttpServletRequest request = getRequest(); /** * 获取用户扫描二维码后,微信返回的信息 */ InputStream inStream = request.getInputStream(); ByteArrayOutputStream outSteam = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = 0; while ((len = inStream.read(buffer)) != -1) { outSteam.write(buffer, 0, len); } outSteam.close(); inStream.close(); String result = new String(outSteam.toByteArray(),"utf-8");
result结果为
public void wxpay(){
try {
HttpServletRequest request = getRequest();
/**
* 获取用户扫描二维码后,微信返回的信息 */ InputStream inStream = request.getInputStream(); ByteArrayOutputStream outSteam = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = 0; while ((len = inStream.read(buffer)) != -1) { outSteam.write(buffer, 0, len); } outSteam.close(); inStream.close(); String result = new String(outSteam.toByteArray(),"utf-8"); System.out.println("callback>>>>"+result); /** * 获取返回的信息内容中各个参数的值 */ Map<String, String> map = PaymentKit.xmlToMap(result); for (String key : map.keySet()) { System.out.println("key= "+ key + " and value= " + map.get(key)); } String appid=map.get("appid"); String openid = map.get("openid"); String mch_id = map.get("mch_id"); String is_subscribe = map.get("is_subscribe"); String nonce_str = map.get("nonce_str"); String product_id = map.get("product_id"); String sign = map.get("sign"); Map<String, String> packageParams = new HashMap<String, String>(); packageParams.put("appid", appid); packageParams.put("openid", openid); packageParams.put("mch_id",mch_id); packageParams.put("is_subscribe",is_subscribe); packageParams.put("nonce_str",nonce_str); packageParams.put("product_id", product_id); String packageSign = PaymentKit.createSign(packageParams, paternerKey); // 统一下单文档地址:https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1 Map<String, String> params = new HashMap<String, String>(); params.put("appid", appid); params.put("mch_id", mch_id); params.put("body", "测试扫码支付"); String out_trade_no=Long.toString(System.currentTimeMillis()); params.put("out_trade_no", out_trade_no); int price=((int)(Float.valueOf(10)*100)); params.put("total_fee", price+""); params.put("attach", out_trade_no); String ip = IpKit.getRealIp(getRequest()); if (StrKit.isBlank(ip)) { ip = "127.0.0.1"; } params.put("spbill_create_ip", ip); params.put("trade_type", TradeType.NATIVE.name()); params.put("nonce_str", System.currentTimeMillis() / 1000 + ""); params.put("notify_url", notify_url); params.put("openid", openid); String paysign = PaymentKit.createSign(params, paternerKey); params.put("sign", paysign); String xmlResult = PaymentApi.pushOrder(params); System.out.println("prepay_xml>>>"+xmlResult); /** * 发送信息给微信服务器 */ Map<String, String> payResult = PaymentKit.xmlToMap(xmlResult); String return_code = payResult.get("return_code"); String result_code = payResult.get("result_code"); if (StrKit.notBlank(return_code) && StrKit.notBlank(result_code) && return_code.equalsIgnoreCase("SUCCESS")&&result_code.equalsIgnoreCase("SUCCESS")) { // 以下字段在return_code 和result_code都为SUCCESS的时候有返回 String prepay_id = payResult.get("prepay_id"); Map<String, String> prepayParams = new HashMap<String, String>(); prepayParams.put("return_code", "SUCCESS"); prepayParams.put("appId", appid); prepayParams.put("mch_id", mch_id); prepayParams.put("nonceStr", System.currentTimeMillis() + ""); prepayParams.put("prepay_id", prepay_id); String prepaySign = null; if (sign.equals(packageSign)) { prepayParams.put("result_code", "SUCCESS"); }else { prepayParams.put("result_code", "FAIL"); prepayParams.put("err_code_des", "订单失效"); //result_code为FAIL时,添加该键值对,value值是微信告诉客户的信息 } prepaySign = PaymentKit.createSign(prepayParams, paternerKey); prepayParams.put("sign", prepaySign); String xml = PaymentKit.toXml(prepayParams); log.error(xml); renderText(xml); } } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
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