javascript导出table里的数据为Excel（3）

第三种方法：

function getXlsFromTbl(inTblId, inWindow) {
            try {
                var allStr = "";
                var curStr = "";
                if (inTblId != null && inTblId != "" && inTblId != "null") {
                    curStr = getTblData(inTblId, inWindow);
                }
                if (curStr != null) {
                    allStr += curStr;
                }
                else {
                    alert("你要导出的表不存在！");
                    return;
                }
                var fileName = getExcelFileName();
                doFileExport(fileName, allStr);
            } catch (e) {
                alert("导出发生异常：" + e.name + "->" + e.description + "!");
            }
        }

function getTblData(inTbl, inWindow) {
            var rows = 0;
            var tblDocument = document;
            if (!!inWindow && inWindow != "") {
                if (!document.all(inWindow)) {
                    return null;
                }
                else {
                    tblDocument = eval(inWindow).document;
                }
            }
            var curTbl = tblDocument.getElementById(inTbl);
            var outStr = "";
            if (curTbl != null) {
                for (var j = 0; j < curTbl.rows.length; j++) {
                    for (var i = 0; i < curTbl.rows[j].cells.length; i++) {
                        if (i == 0 && rows > 0) {
                            outStr += " \t";
                            rows -= 1;
                        }
                        outStr += curTbl.rows[j].cells[i].innerText + "\t";
                        if (curTbl.rows[j].cells[i].colSpan > 1) {
                            for (var k = 0; k < curTbl.rows[j].cells[i].colSpan - 1; k++) {
                                outStr += " \t";
                            }
                        }
                        if (i == 0) {
                            if (rows == 0 && curTbl.rows[j].cells[i].rowSpan > 1) {
                                rows = curTbl.rows[j].cells[i].rowSpan - 1;
                            }
                        }
                    }
                    outStr += "\r\n";
                }
            }
            else {
                outStr = null;
                alert(inTbl + "不存在");
            }
            return outStr;
        }

function getExcelFileName() {
            var d = new Date();
            var curYear = d.getYear();
            var curMonth = "" + (d.getMonth() + 1);
            var curDate = "" + d.getDate();
            var curHour = "" + d.getHours();
            var curMinute = "" + d.getMinutes();
            var curSecond = "" + d.getSeconds();
            if (curMonth.length == 1) {
                curMonth = "0" + curMonth;
            }
            if (curDate.length == 1) {
                curDate = "0" + curDate;
            }
            if (curHour.length == 1) {
                curHour = "0" + curHour;
            }
            if (curMinute.length == 1) {
                curMinute = "0" + curMinute;
            }
            if (curSecond.length == 1) {
                curSecond = "0" + curSecond;
            }
            var fileName = "leo_zhang" + "_" + curYear + curMonth + curDate + "_" + curHour + curMinute + curSecond + ".csv";

            return fileName;
        }

        function doFileExport(inName, inStr) {
            var xlsWin = null;
            if (!!document.all("glbHideFrm")) {
                xlsWin = glbHideFrm;
            }
            else {
                var width = 6;
                var height = 4;
                var openPara = "left=" + (window.screen.width / 2 - width / 2) + ",top=" + (window.screen.height / 2 - height / 2) + ",scrollbars=no,width=" + width + ",height=" + height;
                xlsWin = window.open("", "_blank", openPara);
            }
            xlsWin.document.write(inStr);
            xlsWin.document.close();
            xlsWin.document.execCommand('Saveas', true, inName);
            xlsWin.close();
        }

html页面：

<div>
        <table id="tableToEXC">
        <thead>
            <tr>
                <td>姓名</td>
                <td>年龄</td>
                <td>地址</td>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>tom</td>
                <td>12</td>
                <td>beijing</td>
            </tr>
            <tr>
                <td>tom</td>
                <td>12</td>
                <td>beijing</td>
            </tr>
            <tr>
                <td>tom</td>
                <td>12</td>
                <td>beijing</td>
            </tr>
        </tbody>
    </table>
        <input type="button" onclick="toExcel()" />

        <br />
        <input type="button" onclick="toExcel2(tableToEXC)" />

        <br />
        <input type="button" onclick="getXlsFromTbl('tableToEXC',null)" />
    </div>