Result result = new Result();
Long userId = new Long(1);//baseController.getUserId();
BigDecimal totalAmount = new BigDecimal(request.getParameter("totalPrice"));
String trade_no = "";
String description="";
try {
trade_no = new String(request.getParameter("orderNum").getBytes("ISO-8859-1"),"UTF-8");
description = request.getParameter("description");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String openId = "";
Map<String, String> map = weixinPrePay(trade_no,totalAmount,description,openId,request);
SortedMap<String, Object> finalpackage = new TreeMap<String, Object>();
//应用ID
finalpackage.put("appid", ConfigManager.getInstance().getConfigItem("WXAppID")/*PayCommonUtil.APPID*/);
//商户号
finalpackage.put("partnerid", ConfigManager.getInstance().getConfigItem("MCH_ID"));
Long time = (System.currentTimeMillis() / 1000);
//时间戳
finalpackage.put("timestamp", time.toString());
//随机字符串
finalpackage.put("noncestr", map.get("nonce_str"));
//预支付交易会话ID
finalpackage.put("prepayid", map.get("prepay_id"));
//扩展字段
finalpackage.put("package", "Sign=WXPay");
WeiXinPrePay prePay = new WeiXinPrePay();
prePay.setAppId(ConfigManager.getInstance().getConfigItem("WXAppID"));
prePay.setMchId(ConfigManager.getInstance().getConfigItem("MCH_ID"));
prePay.setTimeStamp(time.toString());
prePay.setNonceStr(map.get("nonce_str"));
prePay.setPrepayId(map.get("prepay_id"));
prePay.setSignType("MD5");
prePay.setPaySign(sign);
result.setData(prePay);
result.setStateCode(GeneralConstant.SUCCESS);
result.setDesc("微信支付加载成功");
return result;
}
/**
* 统一下单
* 应用场景:商户系统先调用该接口在微信支付服务后台生成预支付交易单,返回正确的预支付交易回话标识后再在APP里面调起支付。
* @param trade_no
* @param totalAmount
* @param description
* @param openid
* @param sym
* @param request
* @return
*/
@SuppressWarnings("unchecked")
public Map<String, String> weixinPrePay(String trade_no,BigDecimal totalAmount,
String description, String openid, HttpServletRequest request) {
SortedMap<String, Object> parameterMap = new TreeMap<String, Object>();
parameterMap.put("appid", ConfigManager.getInstance().getConfigItem("WXAppID")); //应用appid
parameterMap.put("mch_id", ConfigManager.getInstance().getConfigItem("MCH_ID")/*PayCommonUtil.MCH_ID*/); //商户号
//parameterMap.put("device_info", "WEB");
parameterMap.put("nonce_str", randomString);
parameterMap.put("body", description);
parameterMap.put("out_trade_no", trade_no);
parameterMap.put("fee_type", "CNY");
System.out.println("jiner");
BigDecimal total = totalAmount.multiply(new BigDecimal(100)); //接口中参数支付金额单位为【分】,参数值不能带小数,所以乘以100
java.text.DecimalFormat df=new java.text.DecimalFormat("0");
parameterMap.put("total_fee", df.format(total));
System.out.println("jiner2");
parameterMap.put("spbill_create_ip", PayCommonUtil.getRemoteHost(request));
parameterMap.put("notify_url", wxnotify);
parameterMap.put("trade_type", "APP");//"JSAPI"
//trade_type为JSAPI是 openid为必填项
//parameterMap.put("openid", openid);
System.out.println("");
String sign = PayCommonUtil.createSign("UTF-8", parameterMap);
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