一、需要安装 npm install xlsx-style Blob.js 和Export2Excel.js 在网上搜都可以找到的 ,而Export2Excel我做了修改,代码如下:带——————的都是我改动的地方
//Export2Excel.js
/* eslint-disable */
require('script-loader!file-saver');
require('script-loader!../toexcel/Blob');//转二进制用 这边要写你的blob的实际地址
require('script-loader!xlsx/dist/xlsx.core.min');
import XLSX from "xlsx-style" //必须要引入才可以,否则报错
function generateArray(table) {
var out = [];
var rows = table.querySelectorAll('tr');
var ranges = [];
for (var R = 0; R < rows.length; ++R) {
var outRow = [];
var row = rows[R];
var columns = row.querySelectorAll('td');
for (var C = 0; C < columns.length; ++C) {
var cell = columns[C];
var colspan = cell.getAttribute('colspan');
var rowspan = cell.getAttribute('rowspan');
var cellValue = cell.innerText;
if (cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;
//Skip ranges
ranges.forEach(function (range) {
if (R >= range.s.r && R <= range.e.r && outRow.length >= range.s.c && outRow.length <= range.e.c) {
for (var i = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null);
}
});
//Handle Row Span
if (rowspan || colspan) {
rowspan = rowspan || 1;
colspan = colspan || 1;
ranges.push({
s: {
r: R,
c: outRow.length
},
e: {
r: R + rowspan - 1,
c: outRow.length + colspan - 1
}
});
}
;
//Handle Value
outRow.push(cellValue !== "" ? cellValue : null);
//Handle Colspan
if (colspan)
for (var k = 0; k < colspan - 1; ++k) outRow.push(null);
}
out.push(outRow);
}
return [out, ranges];
};
function datenum(v, date1904) {
if (date1904) v += 1462;
var epoch = Date.parse(v);
return (epoch - new Date(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
}
function sheet_from_array_of_arrays(data, opts) {
var ws = {};
var range = {
s: {
c: 10000000,
r: 10000000
},
e: {
c: 0,
r: 0
}
};
for (var R = 0; R != data.length; ++R) {
for (var C = 0; C != data[R].length; ++C) {
if (range.s.r > R) range.s.r = R;
if (range.s.c > C) range.s.c = C;
if (range.e.r < R) range.e.r = R;
if (range.e.c < C) range.e.c = C;
var cell = {
v: data[R][C]
};
if (cell.v == null) continue;
var cell_ref = XLSX.utils.encode_cell({
c: C,
r: R
});
if (typeof cell.v === 'number') cell.t = 'n';
else if (typeof cell.v === 'boolean') cell.t = 'b';
else if (cell.v instanceof Date) {
cell.t = 'n';
cell.z = XLSX.SSF._table[14];
cell.v = datenum(cell.v);
} else cell.t = 's';
cell.s = {
border: {
//单元格外侧框线
top: {
style: "thin"
},
bottom: {
style: "thin"
},
left: {
style: "thin"
},
right: {
style: "thin"
}
},
alignment:{
vertical:'center' //设置上下剧中 yh
}
};
ws[cell_ref] = cell;
}
}
if (range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range);
return ws;
}
function Workbook() {
if (!(this instanceof Workbook)) return new Workbook();
this.SheetNames = [];
this.Sheets = {};
}
function s2ab(s) {
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;
}
export function export_table_to_excel(id) {
var theTable = document.getElementById(id);
console.log('a')
var oo = generateArray(theTable);
var ranges = oo[1];
/* original data */
var data = oo[0];
var ws_name = "SheetJS";
console.log(data);
var wb = new Workbook(),
ws = sheet_from_array_of_arrays(data);
/* add ranges to worksheet */
// ws['!cols'] = ['apple', 'banan'];
ws['!merges'] = ranges;
/* add worksheet to workbook */
wb.SheetNames.push(ws_name);
wb.Sheets[ws_name] = ws;
var wbout = XLSX.write(wb, {
bookType: 'xlsx',
bookSST: false,
type: 'binary'
});
saveAs(new Blob([s2ab(wbout)], {
type: "application/octet-stream"
}), "test.xlsx")
}
function formatJson(jsonData) {
console.log(jsonData)
}
export function export_json_to_excel(th, jsonData, defaultTitle,tSetting) {
/* original data */
const {merges,cols} = tSetting;
//cols = [{wpx: 250}, {wpx: 250}, {wpx: 100}, {wpx: 100}]; //设置宽度 这种格式就行
var data = jsonData;
data.unshift(th);
var ws_name = "SheetJS";
var wb = new Workbook(),
ws = sheet_from_array_of_arrays(data);
// ws['!merges'] = [{
// s: { 开始
// c: 0, 列
// r: 0 行
// },
// e: {c: 3, r: 0} 结束
// },
// {
// s: {c: 0, r: 2},
// e: {c: 0, r: 3}
// }
// ];
ws['!merges'] = merges?merges:[];
ws['!cols'] = cols?cols:[];
/* add worksheet to workbook */
wb.SheetNames.push(ws_name);
wb.Sheets[ws_name] = ws;
var wbout = XLSX.write(wb, {
bookType: 'xlsx',
bookSST: false,
type: 'binary'
});
var title = defaultTitle || '列表'
saveAs(new Blob([s2ab(wbout)], {
type: "application/octet-stream"
}), title + ".xlsx")
};
二 、配置config解决cpexcel.js报错问题:
在 module.exports里加上 externals:{ './cptable': 'var cptable' } //解决cpexcel.js报错问题
三、直接调用了
exportExcel(){
let totalCount = [];
this.tableData.forEach(i=>{
i.params.forEach(s=>{
let obj = {
project:i.name,
testName:s.label,
value:''
}
totalCount.push(obj)
})
});
let tSetting = {
merges:[],
cols:[]
};
let tHeader = ["项目名称", "实验名称", "测试值"];//上面设置Excel的表格第一行的标题
let jsonData = [];
let tp = '';
let obj = {
s:{},
e:{}
}
totalCount.forEach((r, ind) => {
if (r.project!=tp){
if (ind===0){
obj.s = {
c: 0,
r: ind+1
}
} else {
obj.e = {
c: 0,
r: ind
}
tSetting.merges.push(JSON.parse(JSON.stringify(obj)));
obj.s = {
c: 0,
r: ind+1
}
}
}
if(ind==totalCount.length-1){
obj.e = {
c: 0,
r: ind+1
}
tSetting.merges.push(JSON.parse(JSON.stringify(obj)));
}
let tem = {
"项目名称":r.project,
"实验名称":r.testName,
"测试值":r.value
};
tp = r.project;
jsonData.push(tem);
});
tSetting.cols = [{wpx: 250}, {wpx: 250}, {wpx: 100}, {wpx: 100}]; //设置宽度
const data = this.formatJson(tHeader, jsonData);
this.$tools.exportExcel.export_json_to_excel(tHeader, data, "运行统计模版",tSetting); //标题,数据,文件名
},
formatJson(filterVal, jsonData) {
return jsonData.map(v => filterVal.map(j => v[j]));
},