// url 下载URL
fileName 下载文件名称
function exportFile(url,fileName) {
let xhr = new XMLHttpRequest();
xhr.open("POST",url);
xhr.responseType = "blob";
xhr.onload = () => {
let ctx = xhr.response;
let blob = Blob([ctx]);
if ("msSaveOrOpenBlob" in navigator) {兼容IE
window.navigator.msSaveOrOpenBlob(blob,fileName);
} else {
let aLink = document.createElement("a");
aLink.download = fileName;
aLink.style.display = "none";
aLink.href = URL.createObjectURL(blob);
document.body.appendChild(aLink);
aLink.click();
document.body.removeChild(aLink);
}
};
xhr.send();
}
class ExportEvent {
constructor( private http:HttpClient ){}
url 下载URL
fileName 下载文件名称
exportFile(url,fileName){
this.http.request("POST",url,{},{responseType:"blob"}).pipe()
.subscribe(
(res)=>{
let blob = Blob([res]);
window.navigator.msSaveOrOpenBlob(blob,fileName);
} {
let aLink = document.createElement("a");
aLink.download = fileName;
aLink.style.display = "none";
aLink.href = URL.createObjectURL(blob);
document.body.appendChild(aLink);
aLink.click();
document.body.removeChild(aLink);
}
},(error)=>{
let reader = FileReader();
reader.onload = (e)=>{
if(e && e["target"]){
let errorMsg = JSON.parse(e["target"]["result"]);
if(errorMsg && errorMsg["code"]){
console.log("有报错，出错了。。。。。");
}
}
}
error.error的值是一个Blob对象
reader.readAsText(error.error);
}
);
}
}
url 下载路径
window.location = url;
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