我一整天都在与这个斗争。替换 Angular HttpClient 并使用 XMLHttpRequest,如下所示:
var oReq = new XMLHttpRequest();
oReq.open("POST", url, true);
oReq.setRequestHeader("content-type", "application/json");
oReq.responseType = "arraybuffer";
oReq.onload = function (oEvent) {
var arrayBuffer = oReq.response;
if (arrayBuffer) {
var byteArray = new Uint8Array(arrayBuffer);
console.log(byteArray, byteArray.length);
this.downloadFile(byteArray, 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'export.xlsx');
}
};
oReq.send(body);
然后修改 downloadFile 函数中 Blob 的创建:
const url = window.URL.createObjectURL(new Blob([binaryData]));
在您的情况下,服务将如下所示:
DownloadData(model:requiredParams):Observable<any>{
return new Observable(obs => {
var oReq = new XMLHttpRequest();
oReq.open("POST", url, true);
oReq.setRequestHeader("content-type", "application/json");
oReq.responseType = "arraybuffer";
oReq.onload = function (oEvent) {
var arrayBuffer = oReq.response;
var byteArray = new Uint8Array(arrayBuffer);
obs.next(byteArray);
};
const body = JSON.stringify(model);
oReq.send(body);
});
}
然后是组件:
exportToExcel() {
this.loadingOverlayFlag = true;
this.podashboardService.DownloadData(this.data).subscribe(result=>{
// console.log(result);
this.downloadFile(result,'application/vnd.openxmlformats-
officedocument.spreadsheetml.sheet', 'export.xlsx');
})
}
downloadFile(blob: any, type: string, filename: string) {
var binaryData = [];
binaryData.push(blob);
const url = window.URL.createObjectURL(new Blob(binaryData, { type: filetype })); // <-- work with blob directly
// create hidden dom element (so it works in all browsers)
const a = document.createElement('a');
a.setAttribute('style', 'display:none;');
document.body.appendChild(a);
// create file, attach to hidden element and open hidden element
a.href = url;
a.download = filename;
a.click();
}