js導入execel

html:

<a  class="btns-primary d-ib" style="width:170px;"  ng-click="load()">下載導入模板</a>
<a id="downLink"  download="qrCode.png" href="javascript:void(0);" ></a>

<label><span>請選擇你要導入的excel</span></label>
<input type="file" style="display:inline-block;" file-model="contractExcel" name="contractExcel" id="contractExcel"/>

angular---js:

$scope.load=function(){
    //下載合同模板
    var _src="/public/file/oldContractInfo.xlsx";
    var ssName="合同模板.xlsx";
    $("#downLink").attr("href",_src);
    $("#downLink")[0].download=ssName;
    $("#downLink")[0].click();
};

$scope.exportData = {};
$scope.saveExcel = function () {
    var filename = document.getElementById("contractExcel").value;
    console.log("filename:"+filename);
    if (filename == "" || filename == null) {
        showMessage(ngDialog, "請選擇文件", function () {
        });
        return false;
    } else {
        if (filename.indexOf(".xlsx") == -1) {

            showMessage(ngDialog, "只能上傳.xls文件", function () {
            });
            return false;

        }

        if (filename.indexOf(".xls") == -1) {
            showMessage(ngDialog, "只能上傳.xls文件", function () {
            });
            return false;

        }

        console.log("a:"+filename.indexOf(".xls"));
        console.log("b:"+filename.indexOf(".xlsx"));

    }


    var editUrl = ctx+"/contract/importContractExcel";
    $http({
        method: 'POST',
        url: editUrl,
        data: $scope.exportData,
        headers: {
            "Content-Type": undefined
        },
        transformRequest: function (data) {
            var exportData = new FormData();
            exportData.append("contractExcel", document.getElementById("contractExcel").files[0]);
            return exportData;
        },

    }).success(function (d) {
        showMessage(ngDialog, "excel數據成功存入數據庫。", function () {
            $scope.onSearch();
        });
    }).error(function (err, status) {
        console.log(err);
        // cb(err);
    });


};