// 对返回来的数据进行加密,并且和传过来的密文进行比较,如果OK则说明数据没有被篡改
public boolean checkBackData(BackData backData) {
String joinParam = this.joinBackDataParam(backData);
// 加密后得到自己的密文
String md5 = DigestUtil.hmacSign(joinParam.toString(), YeepayConfig.key);
// 密文和传过来密文比较
return md5.equals(backData.getHmac());
}
public Map<String, Object> saveDataToRequest(Map<String, Object> request, SendData sendData) {
// 返回了被追加的字符串
String joinParam = joinSendDataParam(sendData);
// 把明文与密文都存储到相应的requestMap中
request.put("p0_Cmd", sendData.getP0_Cmd());
request.put("p1_MerId", sendData.getP1_MerId());
request.put("p2_Order", sendData.getP2_Order());
request.put("p3_Amt", sendData.getP3_Amt());
request.put("p4_Cur", sendData.getP4_Cur());
request.put("p5_Pid", sendData.getP5_Pid());
request.put("p6_Pcat", sendData.getP6_Pcat());
request.put("p7_Pdesc", sendData.getP7_Pdesc());
request.put("p8_Url", sendData.getP8_Url());
request.put("p9_SAF", sendData.getP9_SAF());
request.put("pa_MP", sendData.getPa_MP());
request.put("pd_FrpId", sendData.getPd_FrpId());
request.put("pr_NeedResponse", sendData.getPr_NeedResponse());
request.put("hmac", DigestUtil.hmacSign(joinParam, YeepayConfig.key));
return request;
}
public SendData saveData(SendData sendData) {
// 返回了被追加的字符串
String joinParam = joinSendDataParam(sendData);
sendData.setHmac(DigestUtil.hmacSign(joinParam, YeepayConfig.key));
return sendData;
}