前端调取支付宝支付接口(后台进行封装,没有直接调取支付宝接口),调用返回的数据中,将会有一串的form表单数据返回,我们需要将此表单在当前调用页面submit下,以跳转到支付扫码页;
支付宝返回的form 数据:
<form name="punchout_form" method="post" action="https://openapi.alipay.com/gateway.do?charset=GBK&method=alipay.trade.page.pay&sign=tXR6yxB9Uowu7tfbXVPHBoQXeyOqP2JXvo%2Fzmz%2BIA08aWin63h1%2FF7gHNN7I2K%2FnTV3ZYtvPkILu%2FS8uPmzpsAv1SJev0UNN2AbLDIGvbd%2BWn5neyIUqKcu5ySP1S8Bt4fbnvkMgnlijR25obVi5aFbj99JBZDrpeJ5cB9uq7Ccx7nX54%2F7coNv26PFD%2FPirlIKVVr2avD2w%3D%3D&return_url=http%3A%2F%2Fwww.shanshiwangluo.com%2F%23%2FpayNotify¬ify_url=http%3A%2F%2Fwww.shanshiwangluo.com%2Fssmall%2Fportal%2Forder%2Fpay%2FaliCallback&version=1.0&app_id=2018062260383877&sign_type=RSA2×tamp=2018-12-15+17%3A13%3A32&alipay_sdk=alipay-sdk-java-dynamicVersionNo&format=json"> <input type="hidden" name="biz_content" value="{ "out_trade_no":"1812141933252566", "product_code":"FAST_INSTANT_TRADE_PAY", "total_amount":0.02, "subject":" 订单:1812141933252566", "extend_params":{ "sys_service_provider_id":"2018062211454921" } }"> <input type="submit" value="立即支付" style="display:none" > </form> <script>document.forms[0].submit();</script>
//支付宝支付 async aliPay(orderCode,phone,price){ var resp=await aliPay(orderCode,phone,price); if(resp.msg=="SUCCESS"){ const div=document.createElement('divform'); div.innerHTML=resp.data; document.body.appendChild(div); document.forms[0].acceptCharset='GBK';//保持与支付宝默认编码格式一致,如果不一致将会出现:调试错误,请回到请求来源地,重新发起请求,错误代码 invalid-signature 错误原因: 验签出错,建议检查签名字符串或签名私钥与应用公钥是否匹配 document.forms[0].submit(); }else{ this.$alert("错误:"+resp.data,"提示",{ confirmButtonText:'确定' }); } },
温馨提示:在form submit 前,必须设置 acceptCharset='GBK' ,此处不一定是要GBK ,可以是UTF-8 ,前提是支付宝返回的action 必须是UTF-8 ,需保持一致
第一次接触支付宝电脑端扫描支付,在这个编码格式上花了我几个小时的时间,找到问题后,真的觉得非常无语。。。。
报错误截图: