html：
<input type="file" @change="importf(this)" accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel"/>
js代码:
importf(obj) {
let _this = this;
this.file = event.currentTarget.files[0];
var rABS = false; //是否将文件读取为二进制字符串
var file = this.file;
FileReader.prototype.readAsBinaryString = function(f) {
var binary = "";
var rABS = false; //是否将文件读取为二进制字符串
var pt = this;
var workbook; //读取完成的数据
// var excelData;
var reader = new FileReader();
reader.onprogress = function(e) {
let total = file.size;
_this.progress = (e.loaded/total)*100;
console.log( _this.progress);
};
reader.onload = function(e) {
try {
var bytes = new Uint8Array(reader.result);
var length = bytes.byteLength;
for(var i = 0; i < length; i++) {
binary += String.fromCharCode(bytes[i]);
}
if(rABS) {
workbook = XLSX.read(btoa(fixdata(binary)), { //手动转化
type: 'base64'
});
}else {
workbook = XLSX.read(binary, {
type: 'binary'
});
}
// excelData = [];
} catch(e) {
console.log('文件类型不正确');
return;
}
var fromTo = '';
for (var sheet in workbook.Sheets) {
if (workbook.Sheets.hasOwnProperty(sheet)) {
fromTo = workbook.Sheets[sheet]['!ref'];
_this.excelData = _this.excelData.concat(XLSX.utils.sheet_to_json(workbook.Sheets[sheet]));
}
}
console.log(_this.excelData);
};
reader.readAsArrayBuffer(f);
}
var reader = new FileReader();
if(rABS) {
reader.readAsArrayBuffer(file);
}else {
reader.readAsBinaryString(file);
}
},
注意一下：
需要在data那里定义下excelData变量
data:{
return {
excelData:[],
}
}
这样this.excelData的concat函数才可以使用
参考网址：