開發(fā)小程序時(shí)調(diào)起支付一直提示 {err_code: "2", err_desc: "支付驗(yàn)證簽名失敗", errMsg: "requestPayment:fail"} 我是以服務(wù)商模式發(fā)起的支付，統(tǒng)一下單什么都成功了，但是一到調(diào)起支付的時(shí)候就驗(yàn)證簽名失敗。我服務(wù)端返回的6個(gè)參數(shù)如下： Array ( [appId] => wxc21534f70356ba05 //這里是服務(wù)商的appid，不是小程序的 [nonceStr] => bangkkwrslpveua69dek54k344r5coz7 [package] => prepay_id=wx201710101537105ea7593fcb0689926766 [signType] => MD5 [timeStamp] => 1507621030 [paySign] => E5C4A3BC291A45EDBD3FF131E93E5280 ) 根據(jù)服務(wù)商模式的小程序支付文檔：服務(wù)商模式下應(yīng)為當(dāng)前調(diào)起支付的小程序的appid，貌似問題就出在這個(gè)這個(gè)appid上，而在我的小程序是第三方平臺(tái)的模板小程序，特約商戶授權(quán)后的extAppid:為"wx1ce0dfce6268ceac",也就是當(dāng)前小程序的appid。附上統(tǒng)一下單的整個(gè)過程的參數(shù)，煩請(qǐng)各位幫忙看看問題是出在哪兒。 統(tǒng)一下單參數(shù)： { "appid":"wxc21534f70356ba05",//服務(wù)商appid "attach":"", "body":"asdfasdfasdfa", "goods_tag":"", "mch_id":"1481143442",//服務(wù)商mch_id "nonce_str":"sb0q2rzoxu4e40kl5y9lf9pqzhzaw03m", "notify_url":"https://pay.zsmart.me/wxpay/notify", "out_trade_no":"2017092209341118572", "spbill_create_ip":"220.172.54.174", "sub_appid":"wx1ce0dfce6268ceac",//授權(quán)的小程序 "sub_mch_id":"1489086632",//特約商戶號(hào) "sub_openid":"obQb60MPr_xxtiLNeg6iLZ-Itahg",//與sub_appid對(duì)應(yīng)的sub_openid "time_expire":"20171010154710", "time_start":"20171010153710", "total_fee":"7000", "trade_type":"JSAPI", "sign":"51CD7C77D29515FE007B9E5ADD1D8DBD" } 統(tǒng)一下單成功返回預(yù)付單： Array ( [appid] => wxc21534f70356ba05 [mch_id] => 1481143442 [nonce_str] => MXP4KyE43Jqwufgk [prepay_id] => wx201710101537105ea7593fcb0689926766 [result_code] => SUCCESS [return_code] => SUCCESS [return_msg] => OK [sign] => FC4576C71554FB56512C2E65C91882B7 [sub_appid] => wx1ce0dfce6268ceac [sub_mch_id] => 1489086632 [trade_type] => JSAPI ) 預(yù)付單再次簽名后的jsApiParamter Array ( [appId] => wxc21534f70356ba05 //為什么 [nonceStr] => bangkkwrslpveua69dek54k344r5coz7 [package] => prepay_id=wx201710101537105ea7593fcb0689926766 [signType] => MD5 [timeStamp] => 1507621030 [paySign] => E5C4A3BC291A45EDBD3FF131E93E5280 ) 拜托拜托