Detailed explanation of the use of js-xlsx tool library xlsxUtils
This time I will bring you a detailed explanation of the use of the js-xlsx tool library xlsxUtils. What are the precautions for using the js-xlsx tool library xlsxUtils. The following is a practical case. Let’s take a look. take a look.
Function description:
var xlsxUtils = {
Binary: {
fixdata(data) { //文件流转BinaryString
//......
},
s2ab(s) { //字符串转字符流
//......
}
},
_wb: null,//缓存导入时的Workbook
_rABS: false,//设置读取方式
/**
* @desc 导入根据文件
* @param {File} f 文件
* @param {Function} c 回调
* @return {Object} 回调值
*/
import(f, c) { //......
}, /**
* @desc 根据表Sheet名获取数据
* @param {String} name
* @return {Object}
*/
getSheetByName(name) {//
//......
}, /**
* @desc 根据表Sheet索引获取数据
* @param {Number} index
* @return {Object}
*/
getSheetByIndex(index = 0) { //......
}, /**
* @desc 导出
* @param {Array} data 数据{title1:dataList,title2:dataList....}
* @param {String} type
* @return {Blob}
*/
export(data, type) { //......
}, /**
* 从数据数组或对象中根据key生成相同key值的对象
* @param {Object|Array} data
* @return {Object}
*/
readDataHead(data) { //......
}, /**
* @desc 格式化数据为Sheet格式
* @param {Array} json 数据
*/
format2Sheet(json, n) { //......
}, /**
* @desc 格式化数据为Sheet格式
* @param {Array} sheetData
* @param {String} title
* @param {Object} wb
*/
format2WB(sheetData, title = "mySheet", wb) { //......
}, /**
* @desc 将xlsx Workbook 转为blob
* @param {Array} wb
* @param {String} type 类型
*/
format2Blob(wb, type) { //......
}, /**
* @desc 匹配单元格对应的标识
* @param {Number} n
*/
getCharCol(n) { //......
},
};Example:
Import example (online example):
<!DOCTYPE html><html><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.core.min.js"></script>
<script src="./xlsx.utils.js"></script></head><body>
<input type="file" id="demo" />
<div id="loadInfo"></div>
<div>
<div>
<label>SheetNames</label>: <span id="SheetNames"></span>
</div>
<div>
<label id="demoName"></label>(示例): <span id="demoData"></span>
</div>
</div>
<script>
var demo = document.getElementById("demo");
demo.onchange = function () { let f = this.files[0]; let loadInfo = document.getElementById("loadInfo"); let demoName = document.getElementById("demoName"); let demoData = document.getElementById("demoData");
loadInfo.innerHTML = "正在读取请骚等";
demoName.innerHTML = "";
demoData.innerHTML = "";
xlsxUtils.import(f, (w) => { document.getElementById("SheetNames").innerHTML = JSON.stringify(w.SheetNames);
demoName.innerHTML = w.SheetNames[0];
demoData.innerHTML = JSON.stringify(xlsxUtils.getSheetByIndex(0));
loadInfo.innerHTML = "读取完成";
});
}; </script></body></html>Export example (online example)
<!DOCTYPE html><html><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>demo</title>
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.core.min.js"></script>
<script src="xlsx.utils.min.js"></script>
<script src="saveAs.min.js"> </script></head><body>
<script>
var data = [{ 主页: "111", 名称: "6800", 数量: "6800", 昵称: "广告主网" }, { 主页: "433", 名称: "6800", 数量: "6800", 昵称: "广告主网" }, { 名称: "22", 商家: "6800", 数量: "6800", 昵称: "广告主网", }, { 名称: "43", 商家: "6800", 数量: "6800", 昵称: "广告主网", }, { 店家: "43", 价格: "6800", 数量: "6800", 昵称: "广告主网", }]; </script>
<button id="down">导出</button>
<script>
var down = document.getElementById("down");
down.onclick = function () {
data.unshift(xlsxUtils.readDataHead(data)); var blob = xlsxUtils.export({ "Sheet1": data, "Sheet2": [{ "a": "A", "b": "B" }, { "a": 1, "b": "2" }, { "a": 3, "b": 4 }, { "a": 5, "b": 6 }] });
saveAs(URL.createObjectURL(blob), "aa.xlsx");
}; </script></body></html>Customized starting column export example (online example)
<!DOCTYPE html><html><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>demo</title>
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.core.min.js"></script>
<script src="xlsx.utils.min.js"></script>
<script src="saveAs.min.js"> </script></head><body>
<script>
var data = [{ 主页: "111", 名称: "6800", 数量: "6800", 昵称: "广告主网" }, { 主页: "433", 名称: "6800", 数量: "6800", 昵称: "广告主网" }, { 名称: "22", 商家: "6800", 数量: "6800", 昵称: "广告主网", }, { 名称: "43", 商家: "6800", 数量: "6800", 昵称: "广告主网", }, { 店家: "43", 价格: "6800", 数量: "6800", 昵称: "广告主网", }]; </script>
<button id="down">导出</button>
<script>
var down = document.getElementById("down");
down.onclick = function () {
data.unshift(xlsxUtils.readDataHead(data));
var tmpdata = xlsxUtils.format2Sheet(data, 2); var tmpWB = xlsxUtils.format2WB(tmpdata, "Sheet1");
tmpdata = xlsxUtils.format2Sheet([{ "a": "A", "b": "B" }, { "a": 1, "b": "2" }, { "a": 3, "b": 4 }, { "a": 5, "b": 6 }], 4);
tmpWB = xlsxUtils.format2WB(tmpdata, "Sheet2", tmpWB); var blob = xlsxUtils.format2Blob(tmpWB);
saveAs(URL.createObjectURL(blob), "aa.xlsx");
}; </script></body></html>Multiple data merge and export to single table example (online example)
<!DOCTYPE html><html><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>demo</title>
<script src="http://oss.sheetjs.com/js-xlsx/xlsx.core.min.js"></script>
<script src="xlsx.utils.min.js"></script>
<script src="saveAs.min.js"> </script></head><body>
<script>
var data = [{ 主页: "111", 名称: "6800", 数量: "6800", 昵称: "广告主网" }, { 主页: "433", 名称: "6800", 数量: "6800", 昵称: "广告主网" }, { 名称: "22", 商家: "6800", 数量: "6800", 昵称: "广告主网", }, { 名称: "43", 商家: "6800", 数量: "6800", 昵称: "广告主网", }, { 店家: "43", 价格: "6800", 数量: "6800", 昵称: "广告主网", }]; </script>
<button id="down">导出</button>
<script>
var down = document.getElementById("down");
down.onclick = function () { var d1 = xlsxUtils.format2Sheet([{ "a": "A", "b": "B" }, { "a": 1, "b": "2" }, { "a": 3, "b": 4 }, { "a": 5, "b": 6 }]); var h=xlsxUtils.readDataHead(data);//读取data的列头数据
data.unshift(h);//将列头追加到最data的前
var em={};//用于换行
Object.keys(h).forEach((v)=>{
em[v]="";
}); for(var i=0;i<5;i++){//换5行
data.unshift(em);
} var d2 = xlsxUtils.format2Sheet(data, 3);//3代表从D列开始
d1=Object.assign(d1,d2);
var tmpWB = xlsxUtils.format2WB(d1, "Sheet1");
var blob = xlsxUtils.format2Blob(tmpWB);
saveAs(URL.createObjectURL(blob), "aa.xlsx");
}; </script></body></html>I believe you have mastered the method after reading the case in this article, and more How exciting, please pay attention to other related articles on php Chinese website!
Related reading:
How to use canvas to make a useful graffiti drawing board
How to use s-xlsx to import Excel files and Export (below)
The above is the detailed content of Detailed explanation of the use of js-xlsx tool library xlsxUtils. For more information, please follow other related articles on the PHP Chinese website!
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