//正式接入请上传metainfo到服务端，不要忘记urlencode，使用服务端使用的sdk从服务端访问openapi获取zimid和ziminitclientdata； alipayclient alipayclient = new defaultalipayclient( "https://openapi.alipay.com/gateway.do" , appid, appkey, "json" , "utf-8" , alipay_public_key, "rsa2" );zolozauthenticationcustomersmilepayinitializerequest request = new zolozauthenticationcustomersmilepayinitializerequest();// zolozgetmetainfo接口返回的metainfo对象中加入业务参数 jsonobject zimmetainfo = json.parseobject(metainfo); jsonobject merchantinfo = zimmetainfo.getjsonobject( "merchantinfo" );merchantinfo.put( "pay_amount" , "订单金额" ); //可选，支付币种订单金额,值为double类型 merchantinfo.put( "pay_currency" , "cny" ); //可选，支付币种，目前仅支持 人民币：cny jsonobject extinfo = new jsonobject();request.setbizcontent(zimmetainfo.tojsonstring());});