• 过了个春节,我就忘记了,也不知道从哪抄来的SheetJs解析的例子,先保留下


    例1:

    <html>
    <head>
    
        <title>JS-XLSX Live Demo</title>
    
        <style>
            #drop {
                border: 2px dashed #bbb;
                -moz-border-radius: 5px;
                -webkit-border-radius: 5px;
                border-radius: 5px;
                padding: 25px;
                text-align: center;
                font: 20pt bold,"Vollkorn";
                color: #bbb
            }
    
            #b64data {
                 100%;
            }
    
            a {
                text-decoration: none
            }
    
            button {
            }
        </style>
    
        <script type="text/javascript" src="dist/xlsx.full.min.js"></script>
        <script type="text/javascript" src="dist/xlsx.core.min.js"></script>
    
        <script type="text/javascript" src="dist/jquery.min.js"></script>
    
    </head>
    
    <body>
    <pre>
    <input type="file" name="xlfile" id="xlf" onchange="importf(this)">
    </pre>
    <pre id="out"></pre>
        <br>
        <div id="demo">
    
    
          </div>
        <div>
            <textarea id='debug' rows="30" cols="100"></textarea>
    
        </div>
    
    
    
    
        <script>
                /*
                      FileReader共有4种读取方法:
                      1.readAsArrayBuffer(file):将文件读取为ArrayBuffer。
                      2.readAsBinaryString(file):将文件读取为二进制字符串
                      3.readAsDataURL(file):将文件读取为Data URL
                      4.readAsText(file, [encoding]):将文件读取为文本,encoding缺省值为'UTF-8'
                                   */
                var workbook;//读取完成的数据
                var rABS = false; //是否将文件读取为二进制字符串
    
                
    
    
    
            function importf(obj) {//导入
    
    
                const headers = ["A", "B", "C", "D", "E","F"]; //针对G0107中的表样,做的6列
                const ranges = 4;                              //针对G0107中的表样,跳过的表头
    
    
                    if (!obj.files) {
                        return;
                    }
                    var f = obj.files[0];
                    var reader = new FileReader();
                    reader.onload = function (e) {
                        var data = e.target.result;
                        if (rABS) {
                            workbook = XLSX.read(btoa(fixdata(data)), {//手动转化
                                type: 'base64'
                            });
                        } else {
                            workbook = XLSX.read(data, {
                                type: 'binary'
                            });
                        }
                        var out_json;
    
                        for (var sheetNum = 0; sheetNum < Number(workbook.SheetNames.length); sheetNum++) {
    
                            var first_sheet_name = workbook.SheetNames[sheetNum];
    
                            //var json = XLSX.utils.sheet_to_json(workbook.Sheets[first_sheet_name]);
                            //var json = XLSX.utils.sheet_to_json(workbook.Sheets[first_sheet_name],
                            //    {  header: headers, raw: true, defval:''}
                            //);
    
                            var json = XLSX.utils.sheet_to_html(workbook.Sheets[first_sheet_name]);
    
                            debugger;
                            //console.log(json);
    
                            out_json = getOutput(json, 'json');
                            $('#debug').val(out_json);
    
    
                        }
                        
                    };
                    if (rABS) {
                        reader.readAsArrayBuffer(f);
                    } else {
                        reader.readAsBinaryString(f);
                    }
                }
    
                function fixdata(data) { //文件流转BinaryString
                    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;
            }
    
    
            function getOutput(obj, type) {
                switch (type) {
                    case 'json':
                        return JSON.stringify(obj);
                        break;
                    case 'obj':
                        return obj;
                        break;
                    default:
                        return JSON.stringify(obj);
                }
            }
    
        </script>
    
    
    </body>
    </html>
    

      

    例2:

    <!DOCTYPE html>
    
    <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta charset="utf-8" />
        <title></title>
    
        <script type="text/javascript" src="dist/xlsx.full.min.js"></script>
        <script type="text/javascript" src="dist/xlsx.core.min.js"></script>
    
        <script type="text/javascript" src="dist/jquery.min.js"></script>
    
    </head>
    <body>
    
    
        <div>
            <input type='file' onchange='readFile(event)'>
        </div>
        <div>
            <textarea id='debug' rows="30" cols="100"></textarea>
        </div>
    
    
        <script>
            var excel = new Object();
            var sheet = new Object();
            var row = new Object();
            var cell = new Object();
            var x;
            var wb;
            var output;
            var filename;
            var rows_a, rows_b;
            var cols_a, cols_b;
            var range = new Object();
    
            var readFile = function (event) {
                var read = new FileReader();
                var file = event.target.files[0];
                read.readAsBinaryString(file);
                filename = file.name;
                read.onload = function (event) {
                    var res = event.currentTarget.result;
                    var fileType = getFileType(filename).toString();
                    switch (fileType) {
                        case '.xls':
                            x = XLS;
                            break;
                        case '.xlsx':
                            x = XLSX;
                            break;
                        default:
                            x = null;
                    }
                    if (x) {
                        wb = x.read(res, { type: 'binary' });
                        excel = getEXCEL(wb);
                        output = excel;
                    } else {
                        var info = { error: 'can not resolve file end with :' + fileType };
                        output = getOutput(info, 'obj');
                    }
                    console.log(output);
                    out_json = getOutput(output, 'json');
                    $('#debug').val(out_json);
    
                };
            };
    
            function getEXCEL(wb) {
                var Sheetnames = wb.SheetNames;
                var Sheets = new Object();
                var Sheet = new Object();
    
                Sheets = wb.Sheets;
                excel['sheetSize'] = Sheetnames.length.toString();
                excel['excelName'] = filename;
                excel["sheets"] = [];
    
    
                for (var i = 0; i < Sheetnames.length; i++) {
                    Sheet = Sheets[Sheetnames[i]];
                    range = getRanger(Sheet['!ref']);
                    rows_a = range.row;
                    cols_a = range.col;
                    var m = 0;
                    sheet = new Object();
                    sheet['rowSize'] = rows_a.toString();
                    sheet['colSize'] = cols_a.toString();
                    sheet['sheetName'] = Sheetnames[i];
                    sheet["rows"] = [];
                    sheet["title"] = new Object();
                    for (var j = 0; j < rows_a; j++) {
                        row = new Object();
                        row['cells'] = [];
                        for (var m = 0; m < cols_a; m++) {
                            cell = new Object();
                            row['cells'].push(cell);
                        }
                        sheet["rows"].push(row);
                    }
                    for (k in Sheet) {
                        if (isCell(k)) {
                            range = getRanger(k);
                            rows_b = range.row.toString();
                            cols_b = range.col.toString();
                            row = sheet["rows"][rows_b - 1];
                            row.val = null;
                            row.val = 'true';
                            cell = row['cells'][cols_b - 1];
                            cell.value = null;
                            debugger;
                            cell.value = Sheet[k].w; //---这个Sheet对象,有几个属性,应该是有 s t w 分别对应 
                        }
                    }
                    for (t in sheet["rows"]) {
                        var tit = sheet["rows"][t];
                        if (tit.val) {
                            sheet["title"] = sheet["rows"][t];
                            break;
                        }
                    }
                    excel["sheets"].push(sheet);
                }
                return excel;
            }
    
            function isCell(str) {
                var reg = /^[a-zA-Z]+[0-9]+$/;
                return reg.test(str);
            }
    
            function getRowNumber(key) {
                var reg = /[0-9]+$/;
                var rownumber = reg.exec(key);
                return rownumber;
            }
    
            function getColLetter(key) {
                var reg = /^[a-zA-Z]+/;
                var colletter = reg.exec(key);
                return colletter;
            }
    
            function getColNumber(key) {
                var reg = /[a-zA-Z]+/;
                var colletter = reg.exec(key);
                return colletter;
            }
    
            function getOutput(obj, type) {
                switch (type) {
                    case 'json':
                        return JSON.stringify(obj);
                        break;
                    case 'obj':
                        return obj;
                        break;
                    default:
                        return JSON.stringify(obj);
                }
            }
    
            function getRanger(ref) {
                if (ref == undefined) {
                    range.row = "0";
                    range.col = "0";
                } else {
                    var reg = /:[a-zA-Z]+[0-9]+/;
                    var reg2 = /^[a-zA-Z]+[0-9]+$/;
                    var pos = reg.exec(ref);
                    if (pos == undefined) {
                        pos = reg2.exec(ref);
                    }
                    var r = getRowNumber(pos).toString();
                    var codes = [];
                    var n;
                    var letter = getColNumber(pos).toString();
                    letter = letter.toLocaleLowerCase();
                    n = 0;
                    for (i in letter) {
                        var code = letter[i].charCodeAt() - 96;
                        codes[i] = code;
                        n++;
                    }
                    n--;
                    var mathstr = 0;
                    for (j in codes) {
                        mathstr = 'Math.pow(26,' + n + ')*' + codes[j] + '+' + mathstr;
                        n--;
                    }
                    var c = eval(mathstr).toString();
                    range.row = r;
                    range.col = c;
                }
                return range;
            }
    
            function getFileType(filepath) {
                var reg = /.[a-zA-Z0-9]+$/;
                var filePostfix = reg.exec(filepath);
                return filePostfix;
            }
        </script>
    
    </body>
    </html>
    

      

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  • 原文地址:https://www.cnblogs.com/alexgl2008/p/15862539.html
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