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如何使用s-xlsx實作Excel 檔案匯入和匯出（下）

php中世界最好的语言原創: 2018-03-12 14:37:373582瀏覽

這次帶給大家如何使用s-xlsx實作Excel檔案匯入和匯出，使用s-xlsx實作Excel檔案匯入和匯出的注意事項有哪些，以下就是實戰案例，一起來看一下。

<!DOCTYPE html><html><head>
    <meta charset="UTF-8">
    <title></title>
    <script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script></head><body>
    <input type="file" onchange="importf(this)" />
    <p id="demo"></p>
    <script>
        var rABS = false; //是否将文件读取为二进制字符串
        function importf(obj) {//导入
            if (!obj.files) { return; }            var f = obj.files[0];
            {                var reader = new FileReader();                var name = f.name;
                reader.onload = function (e) {                    var data = e.target.result;                    var wb;                    if (rABS) {
                        wb = XLSX.read(data, { type: &#39;binary&#39; });
                    } else {                        var arr = fixdata(data);
                        wb = XLSX.read(btoa(arr), { type: &#39;base64&#39; });
                    }                    document.getElementById("demo").innerHTML = JSON.stringify(XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[0]]));
                };                if (rABS) reader.readAsBinaryString(f);                else reader.readAsArrayBuffer(f);
            }
        }        function fixdata(data) {            var o = "", l = 0, w = 10240;            for (; l < data.byteLength / w; ++l) o += String.fromCharCode.apply(null, new Uint8Array(data.slice(l * w, l * w + w)));
            o += String.fromCharCode.apply(null, new Uint8Array(data.slice(l * w)));            return o;
        }    </script></body></html>

2.匯出功能的實作

注意:匯出其他格式檔案可能會出現亂碼問題,如有好的解請留言

<!DOCTYPE html><html><head>
    <meta charset="UTF-8">
    <title></title></head><body>
    <button onclick="downloadExl(jsono)">导出</button>
    <script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script>
    <!--调用FileSaver saveAs函数可以实现文件下载-->
    <!--<script src="http://sheetjs.com/demos/Blob.js"></script>
    <script src="http://sheetjs.com/demos/FileSaver.js"></script>-->
    <script>
        //如果使用 FileSaver.js 就不要同时使用以下函数
        function saveAs(obj, fileName) {//当然可以自定义简单的下载文件实现方式 
            var tmpa = document.createElement("a");
            tmpa.download = fileName || "下载";
            tmpa.href = URL.createObjectURL(obj); //绑定a标签
            tmpa.click(); //模拟点击实现下载
            setTimeout(function () { //延时释放
                URL.revokeObjectURL(obj); //用URL.revokeObjectURL()来释放这个object URL
            }, 100);
        }        var jsono = [{ //测试数据
            "保质期临期预警(天)": "adventLifecycle",            "商品标题": "title",            "建议零售价": "defaultPrice",            "高(cm)": "height",            "商品描述": "Description",            "保质期禁售(天)": "lockupLifecycle",            "商品名称": "skuName",            "商品简介": "brief",            "宽(cm)": "width",            "阿达": "asdz",            "货号": "goodsNo",            "商品条码": "skuNo",            "商品品牌": "brand",            "净容积(cm^3)": "netVolume",            "是否保质期管理": "isShelfLifeMgmt",            "是否串号管理": "isSNMgmt",            "商品颜色": "color",            "尺码": "size",            "是否批次管理": "isBatchMgmt",            "商品编号": "skuCode",            "商品简称": "shortName",            "毛重(g)": "grossWeight",            "长(cm)": "length",            "英文名称": "englishName",            "净重(g)": "netWeight",            "商品分类": "categoryId",            "这里超过了": 1111.0,            "保质期(天)": "expDate"
        }];        const wopts = { bookType: &#39;xlsx&#39;, bookSST: false, type: &#39;binary&#39; };//这里的数据是用来定义导出的格式类型
        // const wopts = { bookType: &#39;csv&#39;, bookSST: false, type: &#39;binary&#39; };//ods格式
        // const wopts = { bookType: &#39;ods&#39;, bookSST: false, type: &#39;binary&#39; };//ods格式
        // const wopts = { bookType: &#39;xlsb&#39;, bookSST: false, type: &#39;binary&#39; };//xlsb格式
        // const wopts = { bookType: &#39;fods&#39;, bookSST: false, type: &#39;binary&#39; };//fods格式
        // const wopts = { bookType: &#39;biff2&#39;, bookSST: false, type: &#39;binary&#39; };//xls格式
        function downloadExl(data, type) {            const wb = { SheetNames: [&#39;Sheet1&#39;], Sheets: {}, Props: {} };
            wb.Sheets[&#39;Sheet1&#39;] = XLSX.utils.json_to_sheet(data);//通过json_to_sheet转成单页(Sheet)数据
            saveAs(new Blob([s2ab(XLSX.write(wb, wopts))], { type: "application/octet-stream" }), "这里是下载的文件名" + &#39;.&#39; + (wopts.bookType=="biff2"?"xls":wopts.bookType));
        }        function s2ab(s) {            if (typeof ArrayBuffer !== &#39;undefined&#39;) {                var buf = new ArrayBuffer(s.length);                var view = new Uint8Array(buf);                for (var i = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;                return buf;
            } else {                var buf = new Array(s.length);                for (var i = 0; i != s.length; ++i) buf[i] = s.charCodeAt(i) & 0xFF;                return buf;
            }
        }    </script></body></html>

相信看了本文案例你已經掌握了方法，更多精彩請關注php中文網其它相關文章！