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188 lines
7.7 KiB
188 lines
7.7 KiB
package com.ynxbd.wx.servlet.oldpay;
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import com.ynxbd.common.bean.enums.MerchantEnum;
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import com.ynxbd.common.bean.pay.Recipe;
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import com.ynxbd.common.dao.RecipeDao;
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import com.ynxbd.common.helper.common.CodeHelper;
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import com.ynxbd.common.helper.common.HttpHelper;
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import com.ynxbd.wx.config.WeChatConfig;
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import lombok.extern.slf4j.Slf4j;
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import org.slf4j.MDC;
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import weixin.popular.api.PayMchAPI;
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import weixin.popular.bean.paymch.MchPayNativeReply;
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import weixin.popular.bean.paymch.Unifiedorder;
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import weixin.popular.bean.paymch.UnifiedorderResult;
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import weixin.popular.util.PayUtil;
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import weixin.popular.util.SignatureUtil;
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import weixin.popular.util.XMLConverUtil;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.math.BigDecimal;
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import java.nio.charset.StandardCharsets;
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import java.util.Map;
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import java.util.UUID;
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/**
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* 扫码支付接口（旧版）
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*
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* @author 张剑峰
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* @version v1.0.0
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* @Project:微信公众号
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* @date 2018年6月4日上午10:44:31
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* @Copyright: 2018云南新八达科技有限公司 All rights reserved.
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*/
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@Slf4j
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@WebServlet("/qrpay")
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public class QRPayServlet extends HttpServlet {
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@Override
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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MDC.remove("ip");
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MDC.put("ip", HttpHelper.getIpAddress(request));
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log.info("[旧版]收到扫码支付请求，开始解析...");
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// 读取参数
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InputStream inputStream = request.getInputStream();
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StringBuilder sb = new StringBuilder();
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String s;
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BufferedReader in = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
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while ((s = in.readLine()) != null) {
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sb.append(s);
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}
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in.close();
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inputStream.close();
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// 解析xml成map
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Map<String, String> map = XMLConverUtil.convertToMap(sb.toString());
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// 过滤空 设置 TreeMap
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// SortedMap<Object, Object> payParams = new TreeMap<>();
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// Iterator it = map.keySet().iterator();
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// while (it.hasNext()) {
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// String parameter = (String) it.next();
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// String parameterValue = map.get(parameter);
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// String v = "";
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// if (null != parameterValue) {
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// v = parameterValue.trim();
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// }
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// payParams.put(parameter, v);
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// }
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// 验证请求签名
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if (!map.get("sign").equals(SignatureUtil.generateSign(map, WeChatConfig.MCH_KEY))) {
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log.info("收到扫码支付请求：签名无效！");
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HttpHelper.outRespAlert(response, "收到扫码支付请求：签名无效！");
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return;
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}
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String product_id = map.get("product_id");
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log.info("收到扫码支付请求：product_id=" + product_id + ", open_id=" + map.get("openid"));
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if (!product_id.contains("XBD")) {
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log.info("扫码支付：不合规则的字符串，不允许支付！product_id=" + product_id);
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HttpHelper.outRespAlert(response, "扫码支付：不合规则的字符串，不允许支付！");
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return;
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}
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String[] array = product_id.split("XBD");
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if (array.length < 5) {
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log.info("扫码支付：参数少于5个，不允许支付！product_id=" + product_id);
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HttpHelper.outRespAlert(response, "扫码支付：参数少于5个");
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return;
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}
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String patientId = array[0];
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String mzNum = array[1];
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String recipeId = array[2];
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String payMoney = array[3];
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// String recipeIdJson = "[{\"id\":" + "\"" + recipeId + "\"" + ",\"fee\":" + payMoney + "}]";
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String flag = array[4];
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log.info("扫码支付：patientId=" + array[0] + ", mzNum=" + array[1] + ",recipeId=" + array[2] + ",payMoney=" + array[3] + ", flag=" + array[4]);
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if (patientId.equals("") || mzNum.equals("") || payMoney.equals("")) {
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log.info("扫码支付：参数中有空值，不允许支付！product_id=" + product_id);
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HttpHelper.outRespAlert(response, "扫码支付：参数中有空值，不允许支付！");
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return;
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}
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// 是否重复支付
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log.info("判断是否支付过：" + patientId + "," + mzNum + "," + recipeId);
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if (new RecipeDao().isHisPaidByPatient(patientId, mzNum, recipeId)) {
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log.info("该码已经缴费，无需支付！product_id=" + product_id);
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HttpHelper.outRespAlert(response, "该码已经缴费，无需支付!");
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return;
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}
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// 统一下单
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Unifiedorder unifiedorder = new Unifiedorder();
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String appID = WeChatConfig.APP_ID;
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String mchID = WeChatConfig.MCH_ID;
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String mchKey = WeChatConfig.MCH_KEY;
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unifiedorder.setAppid(appID);
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unifiedorder.setMch_id(mchID);
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unifiedorder.setNonce_str(UUID.randomUUID().toString().replace("-", ""));
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if (flag.equals("1")) {
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unifiedorder.setBody("ID:" + patientId + " 处方单号:" + recipeId);
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} else if (flag.equals("2")) {
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unifiedorder.setBody("ID:" + patientId + " 申请单号:" + recipeId);
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}
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// unifiedorder.setBody("pay");
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unifiedorder.setOut_trade_no(CodeHelper.getOutTradeNo(MerchantEnum.WX));
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// 此处使用Float或者Double转换金额会因为精度问题丢失1分钱,使用BigDecimal来转换
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BigDecimal v1 = new BigDecimal(payMoney);
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BigDecimal v2 = new BigDecimal("100");
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double b = v1.multiply(v2).doubleValue();
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int fFee = (int) b;
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unifiedorder.setTotal_fee(String.valueOf(fFee));
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unifiedorder.setSpbill_create_ip(request.getRemoteAddr());
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unifiedorder.setNotify_url(WeChatConfig.getBaseUrl() + "old_pay_notify_servlet");
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unifiedorder.setTrade_type("NATIVE");
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log.info("扫码回调地址：" + WeChatConfig.getBaseUrl() + "old_pay_notify_servlet");
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UnifiedorderResult unifiedorderResult = PayMchAPI.payUnifiedorder(unifiedorder, mchKey);
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Recipe recipe = new Recipe();
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recipe.setOpenid(map.get("openid"));
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recipe.setPatientId(patientId);
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recipe.setTreatNum(mzNum);
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recipe.setOutTradeNo(unifiedorder.getOut_trade_no());
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recipe.setPayWay("1");
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recipe.setPayMoney(new BigDecimal(payMoney));
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recipe.setRecipeId(recipeId);
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// recipe.setTradeNo(CodeHelper.getHisTradeNo()); // 本次his交易流水号
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recipe.setTotalFee(new BigDecimal(payMoney));
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recipe.setHisStatus(-1);
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recipe.setPayStatus(-1);
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if (!new RecipeDao().insert(recipe)) {
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log.info("[扫码支付]存储失败");
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}
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MchPayNativeReply reply = new MchPayNativeReply();
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reply.setAppid(appID);
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reply.setMch_id(mchID);
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reply.setNonce_str(UUID.randomUUID().toString().replace("-", ""));
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reply.setPrepay_id(unifiedorderResult.getPrepay_id());
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reply.setResult_code("SUCCESS");
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reply.setReturn_code("SUCCESS");
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String string = PayUtil.generateMchPayNativeReplyXML(reply, mchKey);
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response.getWriter().write(string);
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}
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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doPost(request, response);
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}
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}
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