概述
本 Demo 展示了如何使用 CellRange 类的 toHtml 方法将整个工作表导出为 HTML 字符串。Demo 中创建了一个包含销售数据的表格，设置了合并单元格、样式和公式，点击按钮后可以将整个工作表导出为 HTML 并显示在页面上。
实现思路
创建 SpreadJS 工作簿，初始化一个包含销售数据的表格
为表格设置合并单元格、背景色、边框样式和公式
绑定按钮点击事件，调用 toHtml 方法导出整个工作表
将生成的 HTML 字符串插入到页面容器中显示
代码解析
导出整个工作表为 HTML
这段代码使用 getRange(-1, -1, -1, -1) 获取整个工作表的区域，然后调用 toHtml 方法导出为 HTML 字符串。参数 GC.Spread.Sheets.HeaderOptions.allHeaders 表示导出时包含行标题和列标题。
toHtml 方法参数说明
toHtml 方法有两个可选参数：
headerOptions：控制是否包含行列标题，可选值为：
GC.Spread.Sheets.HeaderOptions.noHeaders（默认）：不包含行列标题
GC.Spread.Sheets.HeaderOptions.rowHeaders：包含行标题
GC.Spread.Sheets.HeaderOptions.columnHeaders：包含列标题
GC.Spread.Sheets.HeaderOptions.allHeaders：包含所有标题
includeStyle：是否包含样式和合并单元格信息，默认为 true
支持的导出内容
单元格文本和合并单元格
单元格样式（背景色、前景色、字体、对齐方式、边框等）
网格线、行高和列宽
不支持的功能
图表、批注、图片、形状
超链接、表格、数据透视表
缩放、滚动条等交互功能
运行效果
页面加载后显示一个包含销售数据的表格，表格中设置了合并单元格、样式和公式
点击 "Export To HTML" 按钮，整个工作表将被导出为 HTML 字符串
导出的 HTML 内容会显示在按钮下方的容器中，保留原始表格的样式和结构
用户可以查看导出的 HTML 代码，或将其复制到其他网页中使用
window.onload = function () {
var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"));
initSpread(spread);
document.getElementById('btnExport').onclick = function () {
var sheet = spread.getActiveSheet();
var html = sheet.getRange(-1, -1, -1, -1).toHtml(GC.Spread.Sheets.HeaderOptions.allHeaders);
document.getElementById("htmlContainer").innerHTML = html;
};
};
function initSpread(spread) {
var sheet = spread.getActiveSheet();
sheet.suspendPaint();
sheet.setRowCount(20);
sheet.setColumnCount(12);
sheet.options.gridline.showVerticalGridline = false;
sheet.options.gridline.showHorizontalGridline = false;
sheet.options.allowCellOverflow = true;
sheet.name("Demo");
sheet.addSpan(1, 1, 1, 3);
sheet.setValue(1, 1, "Store");
sheet.addSpan(1, 4, 1, 7);
sheet.setValue(1, 4, "Goods");
sheet.addSpan(2, 1, 1, 2);
sheet.setValue(2, 1, "Area");
sheet.addSpan(2, 3, 2, 1);
sheet.setValue(2, 3, "ID");
sheet.addSpan(2, 4, 1, 2);
sheet.setValue(2, 4, "Fruits");
sheet.addSpan(2, 6, 1, 2);
sheet.setValue(2, 6, "Vegetables");
sheet.addSpan(2, 8, 1, 2);
sheet.setValue(2, 8, "Foods");
sheet.addSpan(2, 10, 2, 1);
sheet.setValue(2, 10, "Total");
sheet.setValue(3, 1, "State");
sheet.setValue(3, 2, "City");
sheet.setValue(3, 4, "Grape");
sheet.setValue(3, 5, "Apple");
sheet.setValue(3, 6, "Potato");
sheet.setValue(3, 7, "Tomato");
sheet.setValue(3, 8, "SandWich");
sheet.setValue(3, 9, "Hamburger");
sheet.addSpan(4, 1, 7, 1);
sheet.addSpan(4, 2, 3, 1);
sheet.addSpan(7, 2, 3, 1);
sheet.addSpan(10, 2, 1, 2);
sheet.setValue(10, 2, "Sub Total:");
sheet.addSpan(11, 1, 7, 1);
sheet.addSpan(11, 2, 3, 1);
sheet.addSpan(14, 2, 3, 1);
sheet.addSpan(17, 2, 1, 2);
sheet.setValue(17, 2, "Sub Total:");
sheet.addSpan(18, 1, 1, 3);
sheet.setValue(18, 1, "Total:");
sheet.setValue(4, 1, "NC");
sheet.setValue(4, 2, "Raleigh");
sheet.setValue(7, 2, "Charlotte");
sheet.setValue(4, 3, "001");
sheet.setValue(5, 3, "002");
sheet.setValue(6, 3, "003");
sheet.setValue(7, 3, "004");
sheet.setValue(8, 3, "005");
sheet.setValue(9, 3, "006");
sheet.setValue(11, 1, "PA");
sheet.setValue(11, 2, "Philadelphia");
sheet.setValue(14, 2, "Pittsburgh");
sheet.setValue(11, 3, "007");
sheet.setValue(12, 3, "008");
sheet.setValue(13, 3, "009");
sheet.setValue(14, 3, "010");
sheet.setValue(15, 3, "011");
sheet.setValue(16, 3, "012");
sheet.setFormula(10, 4, "=SUM(E5:E10)");
sheet.setFormula(10, 5, "=SUM(F5:F10)");
sheet.setFormula(10, 6, "=SUM(G5:G10)");
sheet.setFormula(10, 7, "=SUM(H5:H10)");
sheet.setFormula(10, 8, "=SUM(I5:I10)");
sheet.setFormula(10, 9, "=SUM(J5:J10)");
sheet.setFormula(17, 4, "=SUM(E12:E17)");
sheet.setFormula(17, 5, "=SUM(F12:F17)");
sheet.setFormula(17, 6, "=SUM(G12:G17)");
sheet.setFormula(17, 7, "=SUM(H12:H17)");
sheet.setFormula(17, 8, "=SUM(I12:I17)");
sheet.setFormula(17, 9, "=SUM(J12:J17)");
for (var i = 0; i < 14; i++) {
sheet.setFormula(4 + i, 10, "=SUM(E" + (5 + i).toString() + ":J" + (5 + i).toString() + ")");
}
sheet.setFormula(18, 4, "=E11+E18");
sheet.setFormula(18, 5, "=F11+F18");
sheet.setFormula(18, 6, "=G11+G18");
sheet.setFormula(18, 7, "=H11+H18");
sheet.setFormula(18, 8, "=I11+I18");
sheet.setFormula(18, 9, "=J11+J18");
sheet.setFormula(18, 10, "=K11+K18");
sheet.getRange(1, 1, 3, 10).backColor("#D9D9FF");
sheet.getRange(4, 1, 15, 3).backColor("#D9FFD9");
sheet.getRange(1, 1, 3, 10).hAlign(GC.Spread.Sheets.HorizontalAlign.center);
sheet.getRange(1, 1, 18, 10).setBorder(new GC.Spread.Sheets.LineBorder("Black", GC.Spread.Sheets.LineStyle.thin), { all: true });
sheet.getRange(4, 4, 3, 6).setBorder(new GC.Spread.Sheets.LineBorder("Black", GC.Spread.Sheets.LineStyle.dotted), { inside: true });
sheet.getRange(7, 4, 3, 6).setBorder(new GC.Spread.Sheets.LineBorder("Black", GC.Spread.Sheets.LineStyle.dotted), { inside: true });
sheet.getRange(11, 4, 3, 6).setBorder(new GC.Spread.Sheets.LineBorder("Black", GC.Spread.Sheets.LineStyle.dotted), { inside: true });
sheet.getRange(14, 4, 3, 6).setBorder(new GC.Spread.Sheets.LineBorder("Black", GC.Spread.Sheets.LineStyle.dotted), { inside: true });
fillSampleData(sheet, new GC.Spread.Sheets.Range(4, 4, 6, 6));
fillSampleData(sheet, new GC.Spread.Sheets.Range(11, 4, 6, 6));
sheet.setColumnWidth(0, 40);
sheet.setColumnWidth(1, 40);
sheet.setColumnWidth(3, 40);
sheet.setColumnWidth(4, 45);
sheet.setColumnWidth(8, 80);
sheet.setColumnWidth(9, 80);
sheet.setColumnWidth(11, 40);
sheet.resumePaint();
}
function fillSampleData(sheet, range) {
for (var i = 0; i < range.rowCount; i++) {
for (var j = 0; j < range.colCount; j++) {
sheet.setValue(range.row + i, range.col + j, Math.ceil(Math.random() * 300));
}
}
}
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta charset="utf-8" />
<meta name="spreadjs culture" content="zh-cn" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css"
href="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<script src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets/dist/gc.spread.sheets.all.min.js"
type="text/javascript"></script>
<script
src="$DEMOROOT$/zh/purejs/node_modules/@grapecity-software/spread-sheets-resources-zh/dist/gc.spread.sheets.resources.zh.min.js"
type="text/javascript"></script>
<script src="$DEMOROOT$/spread/source/js/license.js" type="text/javascript"></script>
<script src="app.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
<div class="sample-tutorial">
<div id="ss" class="sample-spreadsheets"></div>
<div class="options-container">
<div class="option-row">
<input type="button" value="Export To HTML" id="btnExport">
<div id="htmlContainer"></div>
</div>
</div>
</div>
</body>
</html>
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: 50%;
height: 100%;
overflow: hidden;
float: left;
}
.options-container {
float: right;
width: 50%;
padding: 12px;
height: 100%;
box-sizing: border-box;
background: #fbfbfb;
overflow: auto;
}
.option-row {
font-size: 14px;
padding: 5px;
margin-top: 10px;
}
#htmlContainer {
height: 400px;
border: 1px solid lightgray;
overflow: scroll;
}
input {
padding: 8px 14px;
display: block;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
