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地址：https://gateway.test.95516.com/gateway/api/order.do<br>
请求：version=5.1.0&amp;encoding=utf-8&amp;txnType=01&amp;txnSubType=01&amp;bizType=000000&amp;backUrl=&amp;signMethod=01&amp;channelType=08&amp;accessType=0&amp;currencyCode=156&amp;tradeType=mobileWeb&amp;merId=&amp;orderId=&amp;txnTime=&amp;txnAmt=&amp;certId=<br>
应答：Invalid request.=<br>
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应答报文验签失败<br>