Angularjs verwendet $http, um die gemeinsame Nutzung von Excel-Dateien asynchron hochzuladen

<form id="fileForm" enctype="multipart/form-data">
    <button id="import_asset" type="button" ng-click="import_asset()">上传文件</button>
    <input id="file_asset" type="file" style="display: none;"/>
</form>

$scope.import_asset = function () {
    $("#file_asset").click();
};
$("#file_asset").on("change", function(){
    var formData = new FormData();
    var file = document.getElementById("file_asset").files[0];
    if(file.name){
        var fileName = file.name.substring(file.name.lastIndexOf(".") + 1);
        if(fileName =="xlsx" || fileName =="xls"){
            formData.append('file', file);
            $http({
                method:"post",
                url:commonService.projectName + "/so/assetmanage/upload",
                data:formData,
                headers : {
                    'Content-Type' : undefined
                },
                transformRequest : angular.identity
            }).then(function (response) {
                if(response.status == 200){
                    alert("文件上传成功！！！");
                }else{
                    alert("文件上传失败！！！");
                }
            });
        }else{
            alert("文件格式不正确，请上传以.xlsx，.xls 为后缀名的文件。");
            $("#file_asset").val("");
        }
    }
});