Tôi đã gặp phải vấn đề tương tự và dành nhiều giờ để tìm các giải pháp khác nhau và bây giờ tôi tham gia tất cả các ý kiến trong bài đăng này. Tôi hy vọng nó, sẽ hữu ích, câu trả lời của tôi đã được thử nghiệm chính xác trên Internet Explorer 11, Chrome và FireFox.
HTML:
<a href="#" class="btn btn-default" file-name="'fileName.extension'" ng-click="getFile()" file-download="myBlobObject"><i class="fa fa-file-excel-o"></i></a>
TRỰC TIẾP:
directive('fileDownload',function(){
return{
restrict:'A',
scope:{
fileDownload:'=',
fileName:'=',
},
link:function(scope,elem,atrs){
scope.$watch('fileDownload',function(newValue, oldValue){
if(newValue!=undefined && newValue!=null){
console.debug('Downloading a new file');
var isFirefox = typeof InstallTrigger !== 'undefined';
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
var isIE = /*@cc_on!@*/false || !!document.documentMode;
var isEdge = !isIE && !!window.StyleMedia;
var isChrome = !!window.chrome && !!window.chrome.webstore;
var isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
var isBlink = (isChrome || isOpera) && !!window.CSS;
if(isFirefox || isIE || isChrome){
if(isChrome){
console.log('Manage Google Chrome download');
var url = window.URL || window.webkitURL;
var fileURL = url.createObjectURL(scope.fileDownload);
var downloadLink = angular.element('<a></a>');//create a new <a> tag element
downloadLink.attr('href',fileURL);
downloadLink.attr('download',scope.fileName);
downloadLink.attr('target','_self');
downloadLink[0].click();//call click function
url.revokeObjectURL(fileURL);//revoke the object from URL
}
if(isIE){
console.log('Manage IE download>10');
window.navigator.msSaveOrOpenBlob(scope.fileDownload,scope.fileName);
}
if(isFirefox){
console.log('Manage Mozilla Firefox download');
var url = window.URL || window.webkitURL;
var fileURL = url.createObjectURL(scope.fileDownload);
var a=elem[0];//recover the <a> tag from directive
a.href=fileURL;
a.download=scope.fileName;
a.target='_self';
a.click();//we call click function
}
}else{
alert('SORRY YOUR BROWSER IS NOT COMPATIBLE');
}
}
});
}
}
})
TRONG BỘ ĐIỀU KHIỂN:
$scope.myBlobObject=undefined;
$scope.getFile=function(){
console.log('download started, you can show a wating animation');
serviceAsPromise.getStream({param1:'data1',param1:'data2', ...})
.then(function(data){//is important that the data was returned as Aray Buffer
console.log('Stream download complete, stop animation!');
$scope.myBlobObject=new Blob([data],{ type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'});
},function(fail){
console.log('Download Error, stop animation and show error message');
$scope.myBlobObject=[];
});
};
PHỤC VỤ:
function getStream(params){
console.log("RUNNING");
var deferred = $q.defer();
$http({
url:'../downloadURL/',
method:"PUT",//you can use also GET or POST
data:params,
headers:{'Content-type': 'application/json'},
responseType : 'arraybuffer',//THIS IS IMPORTANT
})
.success(function (data) {
console.debug("SUCCESS");
deferred.resolve(data);
}).error(function (data) {
console.error("ERROR");
deferred.reject(data);
});
return deferred.promise;
};
BACKEND (trên XUÂN):
@RequestMapping(value = "/downloadURL/", method = RequestMethod.PUT)
public void downloadExcel(HttpServletResponse response,
@RequestBody Map<String,String> spParams
) throws IOException {
OutputStream outStream=null;
outStream = response.getOutputStream();//is important manage the exceptions here
ObjectThatWritesOnOutputStream myWriter= new ObjectThatWritesOnOutputStream();// note that this object doesn exist on JAVA,
ObjectThatWritesOnOutputStream.write(outStream);//you can configure more things here
outStream.flush();
return;
}