微信支付开发

 

private static final String wechatPay = "https://api.mch.weixin.qq.com/pay/unifiedorder";

 

// 沙箱

//    private static final String wechatPay = "https://api.mch.weixin.qq.com/sandboxnew/pay/unifiedorder";

/**

* 微信支付创建支付订单

*/

@Override

public ResultMsg preparePayment(BaseController ctrl, TblOrder pay) {

logger.info("启动微信支付：" + pay.getPayNo());

// 生成参数

HashMap<String, String> params = new HashMap<>();

 

params.put("appid", PropKit.get("wechat.appId"));

 

params.put("body", "M币");

 

params.put("mch_id", PropKit.get("wechat.mchId"));

 

params.put("nonce_str", StringUtils.getRandomTimeString("WXPAY"));

 

params.put("notify_url", PropKit.get("wechat.notifyUrl"));

logger.info("notify_url：" + params.get("notify_url"));

 

 

params.put("out_trade_no", pay.getPayNo());

 

params.put("spbill_create_ip", PropKit.get("server-ip"));

 

// params.put("fee_type", "CNY");

params.put("total_fee", String.valueOf(pay.getAmount().multiply(BigDecimal.valueOf(100)).intValue()));

 

// params.put("total_fee", "1");

 

params.put("trade_type", "APP");

// 微信支付封装XML格式

String xml = null;

try {

// 封装微信支付所需参数进行加密支付

xml = WeChatPayUtils.generateSignedXml(params, PropKit.get("wechat.appSecret"));

} catch (Exception e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

// 请求预付单id

OkHttpClient client = new OkHttpClient();

// 微信支付回调地址

Request requestOkhttp = new Request.Builder().url(wechatPay)

.post(RequestBody.create(MediaType.parse("application/xml"), xml)).build();

Call call = client.newCall(requestOkhttp);

String result = null;

try {

result = call.execute().body().string();

} catch (IOException e) {

e.printStackTrace();

}

// XML转String格式

Map<String, String> resultMap = null;

try {

resultMap = WeChatPayUtils.xmlToMap(result);

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

// 创建返回信息

ResultMsg msg = null;

// 取得预付单id

if (resultMap.containsKey("result_code") && resultMap.containsKey("return_code")

&& resultMap.containsKey("prepay_id")) {

String return_code = resultMap.get("return_code");

String result_code = resultMap.get("result_code");

if ("SUCCESS".equals(result_code) && "SUCCESS".equals(return_code)) {

// 取得prepare_id

String prepay_id = resultMap.get("prepay_id");

logger.info("prepay_id:{}", prepay_id);

SortedMap<String, String> orderInfoMap = new TreeMap<>();

orderInfoMap.put("appid", PropKit.get("wechat.appId"));

orderInfoMap.put("partnerid", PropKit.get("wechat.mchId"));

orderInfoMap.put("prepayid", prepay_id);

orderInfoMap.put("noncestr", System.currentTimeMillis() + "");

orderInfoMap.put("package", "Sign=WXPay");

orderInfoMap.put("timestamp", System.currentTimeMillis() / 1000 + "");

// 生成订单信息签名

String signUpdate = null;

try {

// 订单签名生成加密

signUpdate = WeChatPayUtils.generateSignature(orderInfoMap, PropKit.get("wechat.appSecret"));

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

orderInfoMap.put("sign", signUpdate);

// 预支付订单信息返回

String reJson = JSON.toJSONString(orderInfoMap);

msg = ResultMsg.success(reJson);

//                return JSON.toJSONString(orderInfoMap);

} else {

String error = resultMap.get("return_msg");

msg = ResultMsg.error(error);

}

} else {

// 微信支付错误

msg = ResultMsg.error("no result");

logger.info("微信支付预支付失败：" + "no result");

}

// if (result.containsKey("return_code") == false || !"SUCCESS".equals(result.get("return_code"))){

// String error = result.get("return_msg");

// msg = ResultMsg.error(error);

// logger.info("微信支付预支付失败：" + error);

// }

 

// // 生成APP调用信息

// String prepay_id = result.get("prepay_id");

// //封装调起微信支付的参数 https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_12

// Map<String, String> packageParams = new HashMap<String, String>();

// packageParams.put("appid", PropKit.get("wechat.appId"));

// packageParams.put("partnerid", PropKit.get("wechat.mchId"));

// packageParams.put("prepayid", prepay_id);

// packageParams.put("package", "Sign=WXPay");

// packageParams.put("noncestr", System.currentTimeMillis() + "");

// packageParams.put("timestamp", System.currentTimeMillis() / 1000 + "");

// String packageSign = PaymentKit.createSign(packageParams, PropKit.get("wechat.mchSecret"));

// packageParams.put("sign", packageSign);

// msg = ResultMsg.success(packageParams);

// 返回

return msg;

}

 

/**

* 微信查询支付状态

*/

@Override

public ResultMsg checkPaymentResult(TblOrder pay) {

String appid = PropKit.get("wechat.appId");

String mch_id = PropKit.get("wechat.mchId");

String paternerKey = PropKit.get("wechat.appSecret");

String out_trade_no = pay.getPayNo();

//根据商户订单号查询信息

Map<String, String> map = PaymentApi.queryByOutTradeNo(appid, mch_id, paternerKey, out_trade_no);

//根据微信状态码进行订单判断处理

if (map.containsKey("return_code") && "SUCCESS".equals(map.get("return_code"))) {

if (map.containsKey("result_code") && "SUCCESS".equals(map.get("result_code"))) {

if (map.containsKey("trade_state") && "SUCCESS".equals(map.get("trade_state"))) {

String totalFee = map.get("total_fee");

// 取得价格

BigDecimal realFee = new BigDecimal(totalFee);

realFee = realFee.divide(new BigDecimal(100));

realFee = realFee.setScale(2, BigDecimal.ROUND_FLOOR);

// 取得订单好

String bussinessNo = map.get("transaction_id");

String openId = map.get("openid");

 

// 保存

pay.setRealAmount(realFee);

pay.setBussinessNo(bussinessNo);

pay.setOpenId(openId);

pay.setState(1);

// pay.setBussinessNo(map.get("transaction_id"));

pay.setNotifyJson(JSONObject.toJSONString(map));

pay.update();

return ResultMsg.success(pay);

} else {

// 没有成功

pay.setState(-1);

pay.update();

return ResultMsg.error(map.get("trade_state_desc"));

}

}

}

return ResultMsg.error("查询订单失败，请稍后再试");

}

 

/**

* 微信支付回调

*/

@SkipJWTCheck

public void wxPayNotify() {

String xmlMsg = HttpKit.readData(getRequest());

logger.info("xmlMsg=============================" + xmlMsg);

Map<String, String> params = PaymentKit.xmlToMap(xmlMsg);

logger.info("params=============================" + params);

logger.info("out_trade_no==================================" + params.get("out_trade_no"));

String payNo = params.get("out_trade_no");

int channelType = 2;

TblOrder pay = TblOrder.dao.findById(payNo);

 

// 回调重复判断

if (pay.getState() == 1) {

renderJson(ResultMsg.error("订单已完成"));

return;

}

IPayChannel channel = getPayChannel(channelType);

if (channel != null) {

// 回调校验

if (!PaymentKit.verifyNotify(params, PropKit.get("wechat.appSecret"))) {

logger.info("支付回调校验失败==>{}", JSONObject.toJSONString(params));

return;

}

// 判断是否成功

if (params.containsKey("return_code") && "SUCCESS".equals(params.get("return_code"))) {

String totalFee = params.get("total_fee");

// 取得价格

BigDecimal realFee = new BigDecimal(totalFee);

realFee = realFee.divide(new BigDecimal(100));

realFee = realFee.setScale(2, BigDecimal.ROUND_FLOOR);

// 取得订单好

String bussinessNo = params.get("transaction_id");

String openId = params.get("openid");

 

// 保存

pay.setRealAmount(realFee);

pay.setBussinessNo(bussinessNo);

pay.setOpenId(openId);

pay.setNotifyJson(JSONObject.toJSONString(params));

pay.setState(1);

pay.update();

renderJson(

"<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>");

}

} else {

renderJson(ResultMsg.error("支付渠道不存在"));

}

}