• qt qml 利用xmlhttprequest 调用有赞api


    最近朋友在有赞商城上面开了一个店铺,因为有实体店,一般卖商品后送货上门,但是打票时候老是人工用world文档人工复制黏贴订单打印小票, 所以就找我帮忙做一个软件专门打印小票的,就研究起来调用有赞第三方api来着,本篇主要介绍如何用qml中的xmlhttprequest来实现http请求协议,就以调用有赞商城api的查询订单接口为例:kdt.trades.sold.get

        function searchTrades(startDate,endDate){
            tradesModel.clear();//清空列表
            var request=new XMLHttpRequest();
            var data;
            
            //监听onreadystatechange事件
            request.onreadystatechange=function(){
                if(request.readyState===request.DONE){
                    data=JSON.parse(request.responseText.toString());
                    console.log(request.responseText.toString())
                    for(var i=0;i<data.response.trades.length;i++){
    
                        var defference=true;
                        for(var index=0;index<tradesModel.count;index++){
                            if(tradesModel.get(index).tid===data.response.trades[i].tid){
                                defference=false;
                            }
                        }
                        if(defference){
                            var str="";
                            var orders=data.response.trades[i].orders;
                            for(var a=0;a<orders.length;a++){
                                str+=(" "+orders[a].title+"   数量:"+orders[a].num+"  单价:"+orders[a].price+"元"+"
    
    
    ")
                            }
    
                            var sum=0.0;
                            for(var a=0;a<orders.length;a++){
                                sum+=Number(orders[a].total_fee);
                            }
    
                            var pay_type;
                            if(data.response.trades[i].pay_type==="WEIXIN"){
                                pay_type="微信支付";
                            }
                            else if(data.response.trades[i].pay_type==="ALIPAY "){
                                pay_type="支付宝支付";
                            }
                            else if(data.response.trades[i].pay_type==="BANKCARDPAY "){
                                pay_type="银行卡支付";
                            }
                            else if(data.response.trades[i].pay_type==="PEERPAY "){
                                pay_type="代付";
                            }
                            else if(data.response.trades[i].pay_type==="CODPAY "){
                                pay_type="货到付款";
                            }
                            else if(data.response.trades[i].pay_type==="BAIDUPAY "){
                                pay_type="百度钱包支付";
                            }
                            else if(data.response.trades[i].pay_type==="PRESENTTAKE "){
                                pay_type="直接领取赠品";
                            }
                            else if(data.response.trades[i].pay_type==="COUPONPAY"){
                                pay_type="优惠券/码全额抵扣";
                            }
                            else if(data.response.trades[i].pay_type==="BULKPURCHASE"){
                                pay_type="来自分销商的采购";
                            }
                            else{
                                pay_type="未知类型"
                            }
    
                            str+="  应付:"+sum.toFixed(2)+"元
    
    "+
                                    "  订单创建日期:"+data.response.trades[i].created+"
    
    "+
                                    "付款类型:"+pay_type;
    
                            tradesModel.append({"tid":data.response.trades[i].tid,
                                               "orders":data.response.trades[i].orders,
                                               "ordersContent":str,
                                               "trade":data.response.trades[i],
                                               "selected":false});
                            str=""
                        }
                    }
                }
            }
    
            //params
            var startCreated=startDate;  
            var endCreadted=endDate;
            
            var secret="your app secret";
            var appid="your app id";
            var currentDate=new Date();
            var method="kdt.trades.sold.get";//调用第三方接口函数
            
            var dateString=currentDate.getFullYear().toString()+"-"+
                    (currentDate.getMonth()+1<10?"0"+currentDate.getMonth()+1:currentDate.getMonth()+1)+"-"+
                    (currentDate.getDate()<10?"0"+currentDate.getDate():currentDate.getDate())+" "+
                    (currentDate.getHours()<10?"0"+currentDate.getHours():currentDate.getHours())+":"+
                    (currentDate.getMinutes()<10?"0"+currentDate.getMinutes():currentDate.getMinutes())+":"+
                    (currentDate.getSeconds()<10?"0"+currentDate.getSeconds():currentDate.getSeconds());
    
            //md5验证码
            var md5=Qt.md5(secret+"app_id"+appid+"end_created"+endCreadted+"formatjson"+"method"
                           +method+"sign_methodmd5"+"start_created"+startCreated+"timestamp"+dateString+"v1.0"+secret
                           );
                           
            var url ="https://open.koudaitong.com/api/entry?sign="+md5+"&"+"timestamp="+
                    dateString+"&v=1.0&app_id="+appid+"&method="+
                    method+"&sign_method=md5&format=json"+
                    "&start_created="+startCreated+
                    "&end_created="+endCreadted;
            request.open("GET",url);
            request.send();
        }
    

    函数调用后返回来的是一个Json文本,qml中非常友好的读取这些信息,并且进行处理,我直接用Listmodel来存放json中的订单列表,用Listviewl来显示出来。

    http://www.heilqt.com/topic/5622160642ca1a2d046d6548

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  • 原文地址:https://www.cnblogs.com/findumars/p/5574008.html
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