Java生鲜电商平台-支付模块的设计与架构
开源生鲜电商平台支付目前支持支付宝与微信。针对的是APP端（android or IOS）
1。 数据库表设计。
说明：无论是支付宝还是微信支付，都会有一个服务端的回调，业务根据回调的结果处理相应的业务逻辑。
pay_logs这个表主要是记录相关的用户支付信息。是一个日志记录。
比如：谁付款的，什么时候付款的，订单号多少，是支付宝还是微信，支付状态是支付成功还是支付失败，还是未支付。
特别注意：订单主表也有类似的回调信息。这样用多张表记录相应的信息，可以统计相应的业务指标，包括用户的行为分析等。
关于表的设计，我的经验分享是：如果可以，核心业务表一定要有一个日志记录表，如果可以，可以用时间轴等方式进行数据的插入，与时间轴的显示。
时间轴可以清楚的知道用户的行为点，帮助更加清晰的设计业务流程与系统架构。
相应的支付宝回调代码如下：（注意，这个业务模块属于买家。）
APP调用后端的业务代码
/***
* APP端调用请求支付宝
*/
@RestController
@RequestMapping("/buyer")
public class AlipayController extends BaseController
{
private static final Logger logger = LoggerFactory.getLogger(AlipayController.class);
/**
* 服务器通知地址
*/
private static final String NOTIFY_URL="";
/**待支付*/
private static final int PAY_LOGS_READY=0;
@Autowired
private OrderInfoService orderInfoService;
@Autowired
private BuyerService buyerService;
@Autowired
private PayLogsService payLogsService;/**
* APP端请求调用支付宝
* @param request
* @param response
* @return
*/
@RequestMapping(value="/alipay/invoke",method={RequestMethod.GET,RequestMethod.POST})
public JsonResult alipayInvoke(HttpServletRequest req, HttpServletResponse resp)
{
String result="";
try
{
/**订单号*/
String orderNumber=this.getNotNull("orderNumber", req);
/**金额*/
String money=this.getNotNull("money", req);
/**优惠券id*/
String couponReceiveId = req.getParameter("couponReceiveId");
if(StringUtils.isBlank(orderNumber) || StringUtils.isBlank(money))
{
return new JsonResult(JsonResultCode.FAILURE,"请求参数有误,请稍后重试","");
}
//对比金额
OrderInfo orderInfo=this.orderInfoService.getOrderInfoByOrderNumber(orderNumber);
if(orderInfo==null)
{
return new JsonResult(JsonResultCode.FAILURE,"订单号不存在，请稍后重试","");
}
//获取订单的金额
BigDecimal orderAmount=orderInfo.getOrderAmount();
//减余额
Long buyerId=orderInfo.getBuyerId();
Buyer buyer=this.buyerService.getBuyerById(buyerId);
//用户余额
BigDecimal balanceMoney=buyer.getBalanceMoney();
//计算最终需要给支付宝的金额
BigDecimal payAmount=orderAmount.subtract(balanceMoney);
//买家支付时抵扣优惠券
if(StringUtils.isNotBlank(couponReceiveId)){
Long id = Long.parseLong(couponReceiveId);
payAmount = couponReceiveService.deductionCouponMoney(id, orderNumber, payAmount);
}
logger.info("[AlipayController][alipayInvoke] orderNumber:" +orderNumber +" money:" +money+" orderAmount:"+orderAmount+" balanceMoney:"+balanceMoney+" payAmount:" +payAmount);
//考虑重复订单的问题，会产生重复日志
PayLogs payLogs=this.payLogsService.getPayLogsByOrderNumber(orderNumber);
if(payLogs==null)
{
//创建订单日志
PayLogs logs=new PayLogs();
logs.setUserId(buyerId);
logs.setOrderId(orderInfo.getOrderId());
logs.setOrderNumber(orderNumber);
logs.setOrderAmount(payAmount);
logs.setStatus(PAY_LOGS_READY);
logs.setCreateTime(new Date());
int payLogsResult=payLogsService.addPayLogs(logs);
logger.info("[AlipayController][alipayInvoke] 创建订单日志结果:" + (payLogsResult>0));
}else
{
logger.info("[AlipayController][alipayInvoke] 创建重复订单");
}
AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","","", "json","UTF-8","","RSA2");
AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();
AlipayTradeAppPayModel model = new AlipayTradeAppPayModel();
model.setBody("");
model.setSubject("xxx");
model.setOutTradeNo(orderNumber);
model.setTimeoutExpress("15m");
model.setTotalAmount(payAmount.toString());
model.setProductCode("QUICK_MSECURITY_PAY");
request.setBizModel(model);
request.setNotifyUrl(NOTIFY_URL);
AlipayTradeAppPayResponse response = alipayClient.sdkExecute(request);
result=response.getBody();
logger.info("[AlipayController][alipayNotify] result: " +result);
} catch (AlipayApiException ex)
{
logger.error("[AlipayController][alipayNotify] exception:",ex);
return new JsonResult(JsonResultCode.FAILURE,"系统错误,请稍后重试","");
}
return new JsonResult(JsonResultCode.SUCCESS,"操作成功",result);
}
}
支付宝服务端回调代码
import java.io.IOException;
import java.math.BigDecimal;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
/**
* alipay 支付宝服务端回调
* 参考文档：https://docs.open.alipay.com/204/105301/
* 对于App支付产生的交易，支付宝会根据原始支付API中传入的异步通知地址notify_url，通过POST请求的形式将支付结果作为参数通知到商户系统。
*/
@Controller
@RequestMapping("/buyer")
public class AlipayNotifyController extends BaseController {
private static final Logger logger = LoggerFactory.getLogger(AlipayNotifyController.class);
private static final String ALIPAYPUBLICKEY = "";
private static final String CHARSET = "UTF-8";
/**支付成功*/
private static final int PAY_LOGS_SUCCESS=1;
@Autowired
private OrderInfoService orderInfoService;
@RequestMapping(value = "/alipay/notify", method = { RequestMethod.GET, RequestMethod.POST })
public void alipayNotify(HttpServletRequest request, HttpServletResponse response) throws IOException
{
String url=request.getRequestURL().toString();
logger.info("AlipayNotifyController.alipayNotify.s+tart");
logger.info("[AlipayNotifyController][alipayNotify] url:" +url);
ServletOutputStream out = response.getOutputStream();
//支付宝交易号
String alipayTradeNo=this.getNotNull("trade_no", request);
//商户订单号
String outerTradeNo=this.getNotNull("out_trade_no", request);
//买家支付宝用户号
String buyerId=this.getNotNull("buyer_id", request);
//买家支付宝账号
String buyerLogonId=this.getNotNull("buyer_logon_id", request);
//交易状态
String tradeStatus=this.getNotNull("trade_status", request);
//订单金额,精确到小数点后2位
String money=getNotNull("total_amount", request);
logger.info("[AlipayNotifyController][alipayNotify] tradeStatus:" +tradeStatus+" money:"+money);
StringBuffer buf = new StringBuffer();
if (request.getMethod().equalsIgnoreCase("POST"))
{
Enumeration<String> em = request.getParameterNames();
for (; em.hasMoreElements();)
{
Object o = em.nextElement();
buf.append(o).append("=").append(request.getParameter(o.toString())).append(",");
}
logger.info("回调 method:post]http://" + request.getServerName() + request.getServletPath() + " [<prams:" + buf + ">]");
} else
{
buf.append(request.getQueryString());
logger.info("回调 method:get]http://" + request.getServerName() + request.getServletPath() + "?" + request.getQueryString());
}
//检验支付宝参数
if(!verifyAlipay(request))
{
out.print("fail");
return;
}
//交易成功
if("TRADE_SUCCESS".equalsIgnoreCase(tradeStatus))
{
try
{
if(StringUtils.isNotBlank(outerTradeNo))
{
//查询当前订单信息
OrderInfo info=this.orderInfoService.getOrderInfoByOrderNumber(outerTradeNo);
if(info==null)
{
logger.error("[AlipayNotifyController][alipayNotify] info:" +info);
out.print("fail");
return;
}
//订单信息
OrderInfo orderInfo=new OrderInfo();
orderInfo.setOrderNumber(outerTradeNo);
orderInfo.setCardCode("alipay");
orderInfo.setCardName("支付宝");
orderInfo.setCardNumber(buyerLogonId);
orderInfo.setCardOwner(buyerId);
orderInfo.setPayTime(new Date());
orderInfo.setOuterTradeNo(alipayTradeNo);
orderInfo.setPayStatus(PayStatus.PAY_SUCCESS);
orderInfo.setTradeStatus(TradeStatus.TRADE_PROGRESS);
orderInfo.setPayAmount(new BigDecimal(money));
orderInfo.setBuyerId(info.getBuyerId());
//付款日志
PayLogs payLogs=new PayLogs();
payLogs.setOrderNumber(outerTradeNo);
payLogs.setOuterTradeNo(alipayTradeNo);
payLogs.setStatus(PAY_LOGS_SUCCESS);
orderInfoService.payReturn(orderInfo,payLogs);
out.print("success");
return;
}
}catch(Exception ex)
{
logger.error("[AlipayNotifyController][payReturn] 出现了异常:",ex);
out.print("success");
return;
}
}else
{
out.print("fail");
return;
}
}
/**
* 检验支付宝
* @param request
* @return
*/
@SuppressWarnings("rawtypes")
public boolean verifyAlipay(HttpServletRequest request)
{
boolean flag=true;
// 获取支付宝POST过来反馈信息
Map<String, String> params = new HashMap<String, String>();
Map requestParams = request.getParameterMap();
for (Iterator iter = requestParams.keySet().iterator(); iter.hasNext();) {
String name = (String) iter.next();
String[] values = (String[]) requestParams.get(name);
String valueStr = "";
for (int i = 0; i < values.length; i++) {
valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
}
params.put(name, valueStr);
}
try
{
flag= AlipaySignature.rsaCheckV1(params, ALIPAYPUBLICKEY, CHARSET, "RSA2");
} catch (AlipayApiException e) {
e.printStackTrace();
flag=false;
}
return flag;
}
}
APP支付成功后，其实支付宝或者微信都会告诉你是否成功，只是这种通知是不可靠的，最可靠的的一种方式是支付宝或者微信的服务端回调。
根据回调处理相关的业务。
相应的微信回调代码如下：（注意，这个业务模块属于买家。）
APP调用微信：
/***
* APP端调用请求微信
*/
@RestController
@RequestMapping("/buyer")
public class WeiXinController extends BaseController
{
private static final Logger logger = LoggerFactory.getLogger(WeiXinController.class);
/**待支付*/
private static final int PAY_LOGS_READY=0;
@Autowired
private OrderInfoService orderInfoService;
@Autowired
private BuyerService buyerService;
@Autowired
private PayLogsService payLogsService;
@Autowired
private CouponReceiveService couponReceiveService;
/**
* APP端请求调用微信
* @param request
* @param response
* @return
*/
@RequestMapping(value="/weixin/invoke",method={RequestMethod.GET,RequestMethod.POST})
public JsonResult weixinInvoke(HttpServletRequest req, HttpServletResponse resp)
{
try
{
/**订单号*/
String orderNumber=this.getNotNull("orderNumber", req);
/**金额*/
String money=this.getNotNull("money", req);
/**优惠券id*/
String couponReceiveId = req.getParameter("couponReceiveId");
if(StringUtils.isBlank(orderNumber) || StringUtils.isBlank(money))
{
return new JsonResult(JsonResultCode.FAILURE,"请求参数有误,请稍后重试","");
}
//对比金额
OrderInfo orderInfo=this.orderInfoService.getOrderInfoByOrderNumber(orderNumber);
if(orderInfo==null)
{
return new JsonResult(JsonResultCode.FAILURE,"订单号不存在，请稍后重试","");
}
//获取订单的金额
BigDecimal orderAmount=orderInfo.getOrderAmount();
//减余额
Long buyerId=orderInfo.getBuyerId();
Buyer buyer=this.buyerService.getBuyerById(buyerId);
//用户余额
BigDecimal balanceMoney=buyer.getBalanceMoney();
//计算最终需要给微信的金额
BigDecimal payAmount=orderAmount.subtract(balanceMoney);
//买家支付时抵扣优惠券
if(StringUtils.isNotBlank(couponReceiveId)){
Long id = Long.parseLong(couponReceiveId);
payAmount = couponReceiveService.deductionCouponMoney(id, orderNumber, payAmount);
}
logger.info("[WeiXinController][weixinInvoke] orderNumber:" +orderNumber +" money:" +money+" orderAmount:"+orderAmount+" balanceMoney:"+balanceMoney+" payAmount:" +payAmount);
//考虑重复订单的问题，会产生重复日志
PayLogs payLogs=this.payLogsService.getPayLogsByOrderNumber(orderNumber);
if(payLogs==null)
{
//创建订单日志
PayLogs logs=new PayLogs();
logs.setUserId(buyerId);
logs.setOrderId(orderInfo.getOrderId());
logs.setOrderNumber(orderNumber);
logs.setOrderAmount(payAmount);
logs.setStatus(PAY_LOGS_READY);
logs.setCreateTime(new Date());
int payLogsResult=payLogsService.addPayLogs(logs);
logger.info("[WeiXinController][weixinInvoke] 创建订单日志结果:" + (payLogsResult>0));
}else
{
logger.info("[WeiXinController][weixinInvoke] 创建重复订单");
}
//微信开始
SortedMap<Object,Object> paramMap = new TreeMap<Object,Object>();
paramMap.put("appid", WeiXinUtil.APPID);
paramMap.put("mch_id", WeiXinUtil.MCHID);
String nonceStr=RandomUtil.generateString(8);
// 随机字符串
paramMap.put("nonce_str", nonceStr);
paramMap.put("body","魔笛食材");// 商品描述
paramMap.put("out_trade_no", orderNumber);// 商户订单编号
paramMap.put("total_fee",Math.round(payAmount.doubleValue()*100));
//IP地址
String ip=IpUtils.getIpAddr(req);
paramMap.put("spbill_create_ip",ip);
paramMap.put("notify_url", WeiXinUtil.NOTIFYURL);// 回调地址
paramMap.put("trade_type",WeiXinUtil.TRADETYPE);// 交易类型APP
String sign=createSign(paramMap);
paramMap.put("sign", sign);// 数字签证
logger.info("weixin支付请求IP:" +ip+ " sign:" +sign);
String xml = getRequestXML(paramMap);
String content = HttpClientUtil.getInstance().sendHttpPost(WeiXinUtil.URL,xml,"UTF-8");
logger.info("weixin支付请求的内容content:" +content);
JSONObject jsonObject = JSONObject.fromObject(XmltoJsonUtil.xml2JSON(content));
JSONObject resultXml = jsonObject.getJSONObject("xml");
//返回的编码
JSONArray returnCodeArray =resultXml.getJSONArray("return_code");
//返回的消息
JSONArray returnMsgArray =resultXml.getJSONArray("return_msg");
//结果编码
JSONArray resultCodeArray =resultXml.getJSONArray("result_code");
String returnCode= (String)returnCodeArray.get(0);
String returnMsg= (String)returnMsgArray.get(0);
String resultCode = (String)resultCodeArray.get(0);
logger.info("[WeiXinController][weixinInvoke] returnCode: " +returnCode+" returnMsg:"+returnMsg +" resultCode:"+resultCode);
if(resultCode.equalsIgnoreCase("FAIL"))
{
return new JsonResult(JsonResultCode.FAILURE,"微信统一订单下单失败","");
}
if(resultCode.equalsIgnoreCase("SUCCESS"))
{
JSONArray prepayIdArray =resultXml.getJSONArray("prepay_id");
String prepayId= (String)prepayIdArray.get(0);
WeiXinBean weixin=new WeiXinBean();
weixin.setAppid(WeiXinUtil.APPID);
weixin.setPartnerid(WeiXinUtil.MCHID);
weixin.setNoncestr(nonceStr);
weixin.setPrepayid(prepayId);
String timestamp=System.currentTimeMillis()/1000+"";
weixin.setTimestamp(timestamp);
//最终返回签名
SortedMap<Object,Object> apiMap = new TreeMap<Object,Object>();
apiMap.put("appid", WeiXinUtil.APPID);
apiMap.put("partnerid", WeiXinUtil.MCHID);
apiMap.put("prepayid", prepayId);
apiMap.put("package","Sign=WXPay");
apiMap.put("noncestr",nonceStr);
apiMap.put("timestamp", timestamp);
//再次签名
weixin.setSign(createSign(apiMap));
return new JsonResult(JsonResultCode.SUCCESS,"微信统一订单下单成功",weixin);
}
return new JsonResult(JsonResultCode.FAILURE,"操作失败","");
} catch (Exception ex)
{
logger.error("[WeiXinController][weixinInvoke] exception:",ex);
return new JsonResult(JsonResultCode.FAILURE,"系统错误,请稍后重试","");
}
}
//拼接xml 请求路径
@SuppressWarnings({"rawtypes"})
private String getRequestXML(SortedMap<Object, Object> parame){
StringBuffer buffer = new StringBuffer();
buffer.append("<xml>");
Set set = parame.entrySet();
Iterator iterator = set.iterator();
while(iterator.hasNext()){
Map.Entry entry = (Map.Entry) iterator.next();
String key =String.valueOf(entry.getKey());
String value = String.valueOf(entry.getValue());
//过滤相关字段sign
if("sign".equalsIgnoreCase(key)){
buffer.append("<"+key+">"+"<![CDATA["+value+"]]>"+"</"+key+">");
}else{
buffer.append("<"+key+">"+value+"</"+key+">");
}
}
buffer.append("</xml>");
return buffer.toString();
}
//创建md5 数字签证
@SuppressWarnings({"rawtypes"})
private String createSign(SortedMap<Object, Object> param){
StringBuffer buffer = new StringBuffer();
Set set = param.entrySet();
Iterator<?> iterator = set.iterator();
while(iterator.hasNext()){
Map.Entry entry = (Map.Entry) iterator.next();
String key = String.valueOf(entry.getKey());
Object value =String.valueOf(entry.getValue());
if(null != value && !"".equals(value) && !"sign".equals(key) && !"key".equals(key)){
buffer.append(key+"="+value+"&");
}
}
buffer.append("key="+WeiXinUtil.APIKEY);
String sign =EncryptUtil.getMD5(buffer.toString()).toUpperCase();
return sign;
}
}
微信回调接口：
/**
* weixin 微信服务端回调
*/
@Controller
@RequestMapping("/buyer")
public class WeiXinNotifyController extends BaseController {
private static final Logger logger = LoggerFactory.getLogger(WeiXinNotifyController.class);
/**支付成功*/
private static final int PAY_LOGS_SUCCESS=1;
@Autowired
private OrderInfoService orderInfoService;
@Autowired
private CouponReceiveService couponReceiveService;
@Autowired
private GroupsService groupsService;
@RequestMapping(value = "/weixin/notify", method = { RequestMethod.GET, RequestMethod.POST })
public void weixinNotify(HttpServletRequest request, HttpServletResponse response) throws IOException
{
String url=request.getRequestURL().toString();
logger.info("WeiXinNotifyController.weixinNotify.start-->url:" +url);
try
{
StringBuffer buf = new StringBuffer();
if (request.getMethod().equalsIgnoreCase("POST"))
{
Enumeration<String> em = request.getParameterNames();
for (; em.hasMoreElements();)
{
Object o = em.nextElement();
buf.append(o).append("=").append(request.getParameter(o.toString())).append(",");
}
logger.info("回调 method:post]http://" + request.getServerName() + request.getServletPath() + " [<prams:" + buf + ">]");
} else
{
buf.append(request.getQueryString());
logger.info("回调 method:get]http://" + request.getServerName() + request.getServletPath() + "?" + request.getQueryString());
}
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
response.setHeader("Access-Control-Allow-Origin", "*");
InputStream in=request.getInputStream();
ByteArrayOutputStream out=new ByteArrayOutputStream();
byte[] buffer =new byte[1024];
int len=0;
while((len=in.read(buffer))!=-1){
out.write(buffer, 0, len);
}
out.close();
in.close();
String content=new String(out.toByteArray(),"utf-8");//xml数据
logger.info("[WeiXinNotifyController][weixinNotify] content:" +content);
//日志显示，存在为空的情况.
if(StringUtils.isBlank(content))
{
logger.error("[WeiXinNotifyController][weixinNotify] content is blank,please check it");
response.getWriter().write(setXml("FAIL", "ERROR"));
return;
}
JSONObject jsonObject = JSONObject.fromObject(XmltoJsonUtil.xml2JSON(content));
JSONObject resultXml = jsonObject.getJSONObject("xml");
JSONArray returnCode = resultXml.getJSONArray("return_code");
String code = (String)returnCode.get(0);
if(code.equalsIgnoreCase("FAIL"))
{
response.getWriter().write(setXml("SUCCESS", "OK"));
return;
}else if(code.equalsIgnoreCase("SUCCESS"))
{
//商户订单号即订单编号
String outerTradeNo =String.valueOf(resultXml.getJSONArray("out_trade_no").get(0));
//微信交易订单号
String tradeNo = String.valueOf(resultXml.getJSONArray("transaction_id").get(0));
//交易状态
String resultCode = String.valueOf(resultXml.getJSONArray("result_code").get(0));
//金额
String money =String.valueOf(resultXml.getJSONArray("total_fee").get(0));
//微信的用户ID
String openId =String.valueOf(resultXml.getJSONArray("openid").get(0));
logger.info("[WeiXinNotifyController][weixinNotify] resultCode:" +resultCode+" money:"+money);
//根据这个判断来获取订单交易是否OK
if(!resultCode.equalsIgnoreCase("SUCCESS"))
{
response.getWriter().write(setXml("FAIL", "ERROR"));
return;
}
try
{
if(StringUtils.isNotBlank(outerTradeNo))
{
//查询当前订单信息
OrderInfo info=this.orderInfoService.getOrderInfoByOrderNumber(outerTradeNo);
if(info==null)
{
logger.error("[WeiXinNotifyController][weixinNotify] info:" +info);
response.getWriter().write(setXml("FAIL", "ERROR"));
return;
}
//订单信息
OrderInfo orderInfo=new OrderInfo();
orderInfo.setOrderNumber(outerTradeNo);
orderInfo.setCardCode("weixin");
orderInfo.setCardName("微信支付");
orderInfo.setCardNumber(openId);
orderInfo.setCardOwner(openId);
orderInfo.setPayTime(new Date());
orderInfo.setOuterTradeNo(tradeNo);
orderInfo.setPayStatus(PayStatus.PAY_SUCCESS);
orderInfo.setTradeStatus(TradeStatus.TRADE_PROGRESS);
orderInfo.setPayAmount(new BigDecimal(money).divide(new BigDecimal(100)));
orderInfo.setBuyerId(info.getBuyerId());
//付款日志
PayLogs payLogs=new PayLogs();
payLogs.setOrderNumber(outerTradeNo);
payLogs.setOuterTradeNo(tradeNo);
payLogs.setStatus(PAY_LOGS_SUCCESS);
orderInfoService.payReturn(orderInfo,payLogs);
//回写团购成功状态
groupsService.updateGbStatusByOrderNumber(outerTradeNo);
response.getWriter().write(setXml("SUCCESS", "OK"));
try
{
//更新优惠券状态为已用
couponReceiveService.updateStatus(outerTradeNo);
}catch(Exception ex){
logger.error("[AlipayNotifyController][payReturn] 更新优惠券状态异常:",ex);
}
return;
}
}catch(Exception ex)
{
logger.error("[WeiXinNotifyController][payReturn] 出现了异常:",ex);
response.getWriter().write(setXml("SUCCESS", "OK"));
return;
}
}
}catch(Exception e){
logger.error("[WeiXinNotifyController][weixinNotify] exception:" ,e);
response.getWriter().write(setXml("SUCCESS", "OK"));
return;
}
}
//返回微信服务
private String setXml(String returnCode,String returnMsg)
{
return "<xml><return_code><![CDATA["+returnCode+"]]></return_code><return_msg><![CDATA["+returnMsg+"]]></return_msg></xml>";
}
}
Java开源生鲜电商平台-支付表的设计与架构(源码可下载），如果需要下载的话，可以在我的github下面进行下载。
相关的运营截图如下：
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