How to use js-xlsx cell style
This time I will show you how to use the cell style of js-xlsx, and what are the precautions for using the cell style of js-xlsx. The following is a practical case, let's take a look.
Download xlsx-stylenpm install xlsx-style2. Sample codeCopy the file xlsx.full.min.jsWrite the sample code:
<!DOCTYPE html><html><head>
<meta charset="UTF-8">
<title>示例</title></head><body>
<script src="./xlsx.full.min.js"></script>
<script>
function saveAs(obj, fileName) { var tmpa = document.createElement("a");
tmpa.download = fileName || "下载";
tmpa.href = URL.createObjectURL(obj);
tmpa.click();
setTimeout(function () {
URL.revokeObjectURL(obj);
}, 100);
} var jsono = [{ "id": 1, "合并的列头1": "数据11", "合并的列头2": "数据12", "合并的列头3": "数据13", "合并的列头4": "数据14",
}, { "id": 2, "合并的列头1": "数据21", "合并的列头2": "数据22", "合并的列头3": "数据23", "合并的列头4": "数据24",
}]; const wopts = { bookType: 'xlsx', bookSST: true, type: 'binary', cellStyles: true }; function downloadExl(json, type) { var tmpdata = json[0];
json.unshift({}); var keyMap = []; //获取keys
for (var k in tmpdata) {
keyMap.push(k);
json[0][k] = k;
} var tmpdata = [];//用来保存转换好的json
json.map((v, i) => keyMap.map((k, j) => Object.assign({}, { v: v[k], position: (j > 25 ? getCharCol(j) : String.fromCharCode(65 + j)) + (i + 1)
}))).reduce((prev, next) => prev.concat(next)).forEach((v, i) => tmpdata[v.position] = { v: v.v
}); var outputPos = Object.keys(tmpdata); //设置区域,比如表格从A1到D10
tmpdata["B1"].s = { font: { sz: 14, bold: true, color: { rgb: "FFFFAA00" } }, fill: { bgColor: { indexed: 64 }, fgColor: { rgb: "FFFF00" } } };//<====设置xlsx单元格样式
tmpdata["!merges"] = [{ s: { c: 1, r: 0 }, e: { c: 4, r: 0 }
}];//<====合并单元格
var tmpWB = { SheetNames: ['mySheet'], //保存的表标题
Sheets: { 'mySheet': Object.assign({},
tmpdata, //内容
{ '!ref': outputPos[0] + ':' + outputPos[outputPos.length - 1] //设置填充区域
})
}
};
tmpDown = new Blob([s2ab(XLSX.write(tmpWB,
{ bookType: (type == undefined ? 'xlsx' : type), bookSST: false, type: 'binary' }//这里的数据是用来定义导出的格式类型
))], { type: ""
});
saveAs(tmpDown, "这里是下载的文件名" + '.' + (wopts.bookType == "biff2" ? "xls" : wopts.bookType));
} function getCharCol(n) { let temCol = '',
s = '',
m = 0
while (n > 0) {
m = n % 26 + 1
s = String.fromCharCode(m + 64) + s
n = (n - m) / 26
} return s
} function s2ab(s) { if (typeof ArrayBuffer !== 'undefined') { 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>
<button onclick="downloadExl(jsono)">导出</button></body></html>How to use canvas to make a useful graffiti drawing board
How to use s-xlsx to implement Excel File import and export (Part 2)
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