下载文件需要在Header添加中加Authorization放token时可用 POST方式 下载 POST TOKRN
function toExport(){
var province = $("#province option:selected").text();
var city = $("#city option:selected").text();
var county = $("#county option:selected").text();
var name = $("#names").val();
var currencyName = $("#nor_name").val();
var observationLayer = $("#level").val();
var checkStatus = $("#status").val();
if(province=="请选择省"||province=="请选择省份"){
province=""
}
if(city=="请选择市"){
city=""
}
if(county=="请选择"||county=="请选择区/县"){
county=""
}
var url = ip + "/station/export";
var data =encodeFormData({
province:province,
city:city,
county:county,
currencyName:currencyName,
name:name,
observationLayer:observationLayer,
checkStatus:checkStatus
}) ;
var xhr = new XMLHttpRequest();
xhr.open("post", url, true);
xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded')
xhr.responseType = "blob";
xhr.setRequestHeader('Authorization',"Bearer " + store.get("access_token"));
xhr.onload = function () {
if (this.status == 200) {
var blob = this.response;
var reader = new FileReader();
reader.readAsDataURL(blob);
reader.onload = function (e) {
var a = document.createElement('a');
a.download = "台站数据"+"."+"xls";
a.href = e.target.result;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
}
}
};
xhr.send(data);
}
//封装data
function encodeFormData(data){
if(!data) return '';
var pairs = [];
for(var name in data){
if(!data.hasOwnProperty(name)) continue;
if(typeof data[name] === 'function') continue;
var value = data[name].toString();
name = encodeURIComponent(name.replace('%20','+'));
value = encodeURIComponent(value.replace('%20','+'));
pairs.push(name+'='+value);
}
return pairs.join('&');
}
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