SOURCE

new Vue({
    el: "#app",
    data: {

    },
    mounted() {
        this.$nextTick(() => {
            this.init('/').then(workbook => {
                var sheetNames = workbook.SheetNames; // 工作表名称集合
                sheetNames.forEach(name => {
                    var worksheet = workbook.Sheets[name]; // 只能通过工作表名称来获取指定工作表
                    for (var key in worksheet) {
                        // v是读取单元格的原始值
                        console.log(key, key[0] === '!' ? worksheet[key] : worksheet[key].v);
                    }
                });
            });
        });
    },
    methods: {
        init(file, callback) {
            console.warn(222);
            return new Promise((resolve, reject) => {
                const reader = new FileReader();
                reader.onload = ({ target: { result: data } }) => {
                    console.warn(111);
                    const workbook = XLSX.read(data, { type: 'binary' });
                    if (workbook) resolve(workbook);
                };
                reader.readAsBinaryString(file);
            });

        }
    }
})  

<div id="app">
  
</div>