APP支付：
1.微信支付：
这是app支付时，一个完整的流程
1.1首先要去微信开放平台注册，并创建APP
1.2取得微信支付的权限
1.3 商户平台有公众号平台和APP平台两种，一定要是APP平台，可以在下面这个地方查看
1.4 我们需要在商户平台和开放平台上获取到以下数据：
开放平台：
APPID、APP_SECRET：见1图。
商户平台：
秘钥（APP_KEY）：微信商户平台(pay.weixin.qq.com)-->账户设置-->API安全-->密钥设置
商户号（MCH_ID）：微信商户平台(pay.weixin.qq.com)-->账户设置-->商户信息-->微信支付商户号
数字证书（微信退款需要使用）：微信商户平台(pay.weixin.qq.com)-->账户设置-->API安全-->证书下载
2.支付宝的操作流程简单，文档清楚（略）
3准备工作结束，我的产品是使用Hbuilder开发的HTML5的APP，后端是依托于Java Web程序。工作流程参照时序图。主要代码如下，详情见文件
其中用到一些工具方法 或者客户端创建代码都在链接里面有，我放在了码云上面 https://gitee.com/muziTM/payDemo
3.1 入口
/** * 支付类 包含支付宝和微信 * @author Tianming_Li * */ @Controller @RequestMapping("/payController") public class PayController { //订单 @Autowired OrdersService orderService; //付费 @Autowired PayService payService; //退费 @Autowired RefundService refundService; //支付成功回调 @Autowired CallBackService callBackService; /** * 下单 * @param outTradeNo * @param payType * @param request * @param response * @param modelMap * @return */ @RequestMapping("/pay") public String pay(@RequestParam(name="outTradeNo") String outTradeNo,@RequestParam(name="payType") String payType, HttpServletRequest request,HttpServletResponse response, ModelMap modelMap){ //根据订单号获取到订单信息 Orders order = orderService.selectOrdersInfoByOutTradeNo(outTradeNo); if("wxpay".equals(payType)){ return payService.wxPay(order, request, response, modelMap); }else{ return payService.aliPay(order); } } /** * 退款 * @param outTradeNo * @param payType * @param request * @param response * @return */ @RequestMapping("/refunds") public String refunds(@RequestParam(name="outTradeNo") String outTradeNo,@RequestParam(name="payType") String payType, HttpServletRequest request,HttpServletResponse response){ //根据订单号获取到订单信息 Orders order = orderService.selectOrdersInfoByOutTradeNo(outTradeNo); if("wxpay".equals(payType)){ return refundService.wxRefund(order, request, response); }else{ return refundService.aliRefund(order); } } /** * 接收微信支付成功通知 * * @param request * @param response * @throws IOException */ @RequestMapping(value = "/getWxPayNotify") public void getWxPayNotify(HttpServletRequest request, HttpServletResponse response) throws IOException { callBackService.wxCallBack(request, response); } /** * 接收支付宝支付成功回调 * @param request * @param response * @throws IOException */ @RequestMapping("/getAliPayNotify") public void getAliPayNotify(HttpServletRequest request, HttpServletResponse response) throws IOException { callBackService.aliCallBack(request, response); } }
3.2 支付代码
/** * 支付处理 * @author Tianming_Li * */ @Service("payService") public class PayServiceImpl implements PayService { protected static final Log logger = LogFactory.getLog(PayServiceImpl.class); @Override public String wxPay(Orders order, HttpServletRequest request, HttpServletResponse response, ModelMap modelMap) { BaseDao dao = DaoUtils.getDao("sys"); StringBuilder sb = new StringBuilder(); sb.append("SELECT * FROM WX_PAY_CONFIG WHERE YY_ID = ‘"); sb.append(order.getYyId()); sb.append("‘"); //获取到微信配置参数 WxPayConfig appPayConfig = dao.getObjectBySql(sb.toString(), WxPayConfig.class); Map<String, Object> map = new HashMap<String, Object>(); //初始化一个请求对象 WxRequestHandler wxRequestHandler = new WxRequestHandler(request, response); String payFee = order.getPayMoney(); int intPayFee = (int) (Float.valueOf(payFee) * 100); String nonceStr = WxUtils.getNonceStr(); String outTradeNo = order.getOutTradeNo(); String timestamp = WxUtils.getTimeStamp(); wxRequestHandler.setParameter("appid", appPayConfig.getAppId());//appId wxRequestHandler.setParameter("mch_id", appPayConfig.getMchId());//商户号 wxRequestHandler.setParameter("nonce_str", nonceStr);//随机字符串 wxRequestHandler.setParameter("body", appPayConfig.getBody());//商品描述 wxRequestHandler.setParameter("notify_url", appPayConfig.getNotifyUrl());//通知地址 wxRequestHandler.setParameter("out_trade_no", outTradeNo); wxRequestHandler.setParameter("spbill_create_ip", request.getRemoteAddr()); wxRequestHandler.setParameter("total_fee", String.valueOf(intPayFee)); wxRequestHandler.setParameter("trade_type", "APP"); //注意签名生成方式，具体见官方文档 wxRequestHandler.setParameter("sign", wxRequestHandler.createMD5Sign(appPayConfig.getAppKey())); String prepayid; try { prepayid = wxRequestHandler.sendPrepay(); if (prepayid != null && !prepayid.equals("")) { String signs ="appid=" + appPayConfig.getAppId() + "&noncestr=" + nonceStr + "&package=Sign=WXPay" + "&partnerid="+ appPayConfig.getPartnerId() //商户id + "&prepayid=" + prepayid + "×tamp=" + timestamp + "&key=" + appPayConfig.getAppKey();//商户平台---api安全---密钥 map.put("code", 200); map.put("info", "success"); map.put("prepayid", prepayid); map.put("sign", WxUtils.getMD5Encode(signs, "utf8").toUpperCase()); map.put("appid", appPayConfig.getAppId()); map.put("timestamp", timestamp); // 等于请求prepayId时的time_start map.put("noncestr", nonceStr); // 与请求prepayId时值一致 map.put("package", "Sign=WXPay"); // 固定常量 map.put("partnerid", appPayConfig.getPartnerId());//商户id } else { map.put("code", 400); map.put("info", "获取prepayid失败"); } } catch (Exception e) { map.put("code", 405); map.put("info", "系统异常"); } return JSONUtils.toJSON(map); } @Override public String aliPay(Orders order) { //获取配置参数 BaseDao dao = DaoUtils.getDao("sys"); StringBuilder sb = new StringBuilder(); sb.append("SELECT * FROM ALI_PAY_CONFIG WHERE YY_ID = ‘"); sb.append(order.getYyId()); sb.append("‘"); AliPayConfig appPayConfig = dao.getObjectBySql(sb.toString(), AliPayConfig.class); // 实例化客户端（参数：网关地址、商户appid、商户私钥、格式、编码、支付宝公钥、加密类型），为了取得预付订单信息 AlipayClient alipayClient = new DefaultAlipayClient(appPayConfig.getUrl(), appPayConfig.getAppId(), appPayConfig.getRsaPrivateKey(), appPayConfig.getFormat(), appPayConfig.getCharset(), appPayConfig.getPublicKey(), appPayConfig.getSigntype()); // 实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.app.pay AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest(); // SDK已经封装掉了公共参数，这里只需要传入业务参数。以下方法为sdk的model入参方式(model和biz_content同时存在的情况下取biz_content)。 AlipayTradeAppPayModel model = new AlipayTradeAppPayModel(); //销售产品码，商家和支付宝签约的产品码，为固定值QUICK_MSECURITY_PAY BeanUtils.copy(order, model);//将订单信息复制到model类中 request.setBizModel(model); // 回调地址 指向回调函数 example: https://ip:port/payController/getAliPayNotify.do request.setNotifyUrl(appPayConfig.getNotifyUrl()); String orderStr = ""; try { // 这里和普通的接口调用不同，使用的是sdkExecute AlipayTradeAppPayResponse response = alipayClient.sdkExecute(request); orderStr = response.getBody(); logger.info("订单str：" + orderStr); } catch (AlipayApiException e) { logger.info(e.getMessage()); } return orderStr; } }
3.2回调代码
@Service("callBackService")
public class CallBackServiceImpl implements CallBackService {
private static final Log LOGGER = LogFactory.getLog(CallBackServiceImpl.class);
public static final String SUCCESS = "SUCCESS";
@SuppressWarnings("unchecked")
@Override
public void wxCallBack(HttpServletRequest request, HttpServletResponse response) throws IOException {
PrintWriter writer = response.getWriter();
InputStream inputstream = request.getInputStream();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int len = 0;
while((len = inputstream.read(b))!= -1){
outputStream.write(b, 0, len);
}
String result = new String(outputStream.toByteArray(), "utf-8");
inputstream.close();
outputStream.close();
Map<String, String> map = null;
//解析微信通知返回的信息
try {
map = WxUtils.doXMLParse(result);
} catch (JDOMException e) {
LOGGER.info("微信回调失败："+e.getMessage());
}
// 若支付成功，则告知微信服务器收到通知
if (SUCCESS.equals(map.get("return_code")) && SUCCESS.equals(map.get("result_code"))) {
/**
* ...
* 回调业务
*/
//微信会一直调用接口，直到我们返回SUCCESS
String notifyStr = WxUtils.setXML(SUCCESS, "");
writer.write(notifyStr);
writer.flush();
}
}
@Override
public void aliCallBack(HttpServletRequest request, HttpServletResponse response) throws IOException {
LOGGER.info("进入支付宝回调");
// 获取支付宝GET过来反馈信息
String reqWay = "";
if ("GET".equals(request.getMethod())) {
reqWay = "GET";
}
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] + ",";
}
// 乱码解决，这段代码在出现乱码时使用。如果mysign和sign不相等也可以使用这段代码转化
if ("GET".equals(reqWay)) {
try {
valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
} catch (UnsupportedEncodingException e) {
LOGGER.info("不支持的编码：" + e.getMessage());
}
}
params.put(name, valueStr);
}
String tradeNo = request.getParameter("trade_no"); // 支付宝交易号
String tradeStatus = request.getParameter("trade_status"); // 支付状态
String outTradeNo = request.getParameter("out_trade_no"); // 系统订单号
String sellerId = request.getParameter("seller_id"); // 商户号
LOGGER.info("支付宝交易号：" + tradeNo + ", 返回状态:" + tradeStatus + ",订单号 :" + outTradeNo);
Map<String, Object> map = new HashMap<String, Object>();
String result = "";
try {
if ("TRADE_SUCCESS".equals(tradeStatus)) {
/**
* ...
* 回调业务
*/
} else {
result = "fail";// 为了保证不重复回调
}
} catch (Exception e) {
result = "fail";
}
map.put(result, result);
AliUtils.renderText(response, result);
}
}
3.4 微信退费的时候需要证书，密码默认是商户号，由于项目中使用了多个微信商户号，因此有多个证书，路径和密码放在了数据库中
public class WxRequestHandler{ /** * 退费 * @return */ public Map<String,String> sendWxChanel(String filePath,String pwd) throws Exception{ Map<String,String> map =null; Set es=this.getAllParameters().entrySet(); Iterator it=es.iterator(); StringBuilder sb = new StringBuilder("<xml>"); while(it.hasNext()){ Map.Entry entry = (Map.Entry) it.next(); String k = (String) entry.getKey(); String v = (String) entry.getValue(); sb.append("<"+k+">"+v+"</"+k+">"); } sb.append("</xml>"); String params=sb.substring(0); String requestUrl = this.getGateUrl(); TenpayHttpClient httpClient = new TenpayHttpClient(); httpClient.setReqContent(requestUrl); String resContent = ""; //filepath 文件路径 pwd 密码 if (httpClient.callHttpPost(requestUrl, params,true,filePath,pwd)) { resContent = httpClient.getResContent(); map=WxUtils.doXMLParse(resContent); } return map; } }