第一步
npm install -S file-saver xlsx
npm install -D script-loader
======================================================================================
第二步
Bolb.js========>
(function (view) {
"use strict";
view.URL = view.URL || view.webkitURL;
if(view.Blob && view.URL) {
try {
new Blob;
return;
} catch (e) {}
}
// Internally we use a BlobBuilder implementation to base Blob off of// in order to support older browsers that only have BlobBuildervarBlobBuilder = view.BlobBuilder || view.WebKitBlobBuilder || view.MozBlobBuilder || (function(view) {
var get_class =function(object) {
returnObject.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1];
}
, FakeBlobBuilder =function BlobBuilder() {
this.data = [];
}
, FakeBlob =function Blob(data, type, encoding) {
this.data = data;
this.size = data.length;
this.type = type;
this.encoding = encoding;
}
, FBB_proto = FakeBlobBuilder.prototype
, FB_proto = FakeBlob.prototype
, FileReaderSync = view.FileReaderSync
, FileException =function(type) {
this.code =this[this.name = type];
}
, file_ex_codes = (
"NOT_FOUND_ERR SECURITY_ERR ABORT_ERR NOT_READABLE_ERR ENCODING_ERR " + "NO_MODIFICATION_ALLOWED_ERR INVALID_STATE_ERR SYNTAX_ERR" ).split(" ")
, file_ex_code = file_ex_codes.length
, real_URL = view.URL || view.webkitURL || view
, real_create_object_URL = real_URL.createObjectURL
, real_revoke_object_URL = real_URL.revokeObjectURL
, URL = real_URL
, btoa = view.btoa
, atob = view.atob
, ArrayBuffer = view.ArrayBuffer
, Uint8Array = view.Uint8Array
;
FakeBlob.fake = FB_proto.fake =true;
while(file_ex_code--) {
FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1;
}
if(!real_URL.createObjectURL) {
URL = view.URL = {};
}
URL.createObjectURL =function(blob) {
var type = blob.type
, data_URI_header
;
if(type ===null) {
type = "application/octet-stream";
}
if(blobinstanceof FakeBlob) {
data_URI_header = "data:" + type;
if(blob.encoding === "base64") {
returndata_URI_header + ";base64," + blob.data;
} elseif(blob.encoding === "URI") {
returndata_URI_header + "," + decodeURIComponent(blob.data);
} if (btoa) {
returndata_URI_header + ";base64," + btoa(blob.data);
} else {
returndata_URI_header + "," + encodeURIComponent(blob.data);
}
} elseif (real_create_object_URL) {
return real_create_object_URL.call(real_URL, blob);
}
};
URL.revokeObjectURL =function(object_URL) {
if(object_URL.substring(0, 5) !== "data:" && real_revoke_object_URL) {
real_revoke_object_URL.call(real_URL, object_URL);
}
};
FBB_proto.append =function(data/*, endings*/) {
varbb =this.data;
// decode data to a binary stringif(Uint8Array && (datainstanceofArrayBuffer || datainstanceof Uint8Array)) {
var str = "" , buf =new Uint8Array(data)
, i = 0 , buf_len = buf.length
;
for(; i < buf_len; i++) {
str += String.fromCharCode(buf[i]);
}
bb.push(str);
} elseif(get_class(data) === "Blob" || get_class(data) === "File") {
if (FileReaderSync) {
varfr =new FileReaderSync;
bb.push(fr.readAsBinaryString(data));
} else {
// async FileReader won't work as BlobBuilder is syncthrownewFileException("NOT_READABLE_ERR");
}
} elseif(datainstanceof FakeBlob) {
if(data.encoding === "base64" && atob) {
bb.push(atob(data.data));
} elseif(data.encoding === "URI") {
bb.push(decodeURIComponent(data.data));
} elseif(data.encoding === "raw") {
bb.push(data.data);
}
} else {
if(typeofdata !== "string") {
data += "";// convert unsupported types to strings }
// decode UTF-16 to binary string bb.push(unescape(encodeURIComponent(data)));
}
};
FBB_proto.getBlob =function(type) {
if(!arguments.length) {
type =null;
}
returnnewFakeBlob(this.data.join(""), type, "raw");
};
FBB_proto.toString =function() {
return"[object BlobBuilder]";
};
FB_proto.slice =function(start, end, type) {
varargs = arguments.length;
if(args < 3) {
type =null;
}
returnnew FakeBlob(
this.data.slice(start, args > 1 ? end :this.data.length)
, type
, this.encoding
);
};
FB_proto.toString =function() {
return"[object Blob]";
};
FB_proto.close =function() {
this.size =this.data.length = 0;
};
return FakeBlobBuilder;
}(view));
view.Blob =function Blob(blobParts, options) {
vartype = options ? (options.type || "") : "";
varbuilder =new BlobBuilder();
if (blobParts) {
for(vari = 0, len = blobParts.length; i < len; i++) {
builder.append(blobParts[i]);
}
}
return builder.getBlob(type);
};
}(typeofself !== "undefined" && self ||typeofwindow !== "undefined" && window ||this.content ||this));
================上面的文件 必须在下面被引入所有地址必须一致，如果有变动也要变为一致============
Export2Excel.js：===》
/* eslint-disable */require('script-loader!file-saver');
require('./Blob'); // 这里的地址要和上面的一致引入正确
require('script-loader!xlsx/dist/xlsx.core.min');function generateArray(table) {
varout = [];
varrows = table.querySelectorAll('tr');
varranges = [];
for(varR = 0; R < rows.length; ++R) {
varoutRow = [];
varrow = rows[R];
varcolumns = row.querySelectorAll('td');
for(varC = 0; C < columns.length; ++C) {
varcell = columns[C];
varcolspan = cell.getAttribute('colspan');
varrowspan = cell.getAttribute('rowspan');
varcellValue = cell.innerText;
if(cellValue !== "" && cellValue == +cellValue) cellValue = +cellValue;
//Skip rangesranges.forEach(function (range) {
if(R >= range.s.r && R <= range.e.r && outRow.length >= range.s.c && outRow.length <= range.e.c) {
for(vari = 0; i <= range.e.c - range.s.c; ++i) outRow.push(null);
}
});
//Handle Row Spanif(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 ValueoutRow.push(cellValue !== "" ? cellValue :null);
//Handle Colspanif(colspan)for(vark = 0; k < colspan - 1; ++k) outRow.push(null);
}
out.push(outRow);
}
return [out, ranges];
};
function datenum(v, date1904) {
if(date1904) v += 1462;
varepoch = Date.parse(v);
return(epoch -newDate(Date.UTC(1899, 11, 30))) / (24 * 60 * 60 * 1000);
}
function sheet_from_array_of_arrays(data, opts) {
varws = {};
varrange = {s: {c: 10000000, r: 10000000}, e: {c: 0, r: 0}};
for(varR = 0; R != data.length; ++R) {
for(varC = 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;
varcell = {v: data[R][C]};
if(cell.v ==null)continue;
varcell_ref = XLSX.utils.encode_cell({c: C, r: R});
if(typeofcell.v === 'number') cell.t = 'n';
elseif(typeofcell.v === 'boolean') cell.t = 'b';
elseif(cell.vinstanceof Date) {
cell.t = 'n';
cell.z = XLSX.SSF._table[14];
cell.v = datenum(cell.v);
}
elsecell.t = 's';
ws[cell_ref] = cell;
}
}
if(range.s.c < 10000000) ws['!ref'] = XLSX.utils.encode_range(range);
return ws;
}
function Workbook() {
if(!(thisinstanceofWorkbook))returnnew Workbook();
this.SheetNames = [];
this.Sheets = {};
}
function s2ab(s) {
varbuf =new ArrayBuffer(s.length);
varview =new Uint8Array(buf);
for(vari = 0; i != s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
return buf;
}
export function export_table_to_excel(id) {
vartheTable = document.getElementById(id);
console.log('a')
varoo = generateArray(theTable);
varranges = oo[1];
/* original data */vardata = oo[0];
varws_name = "SheetJS";
console.log(data);
varwb =newWorkbook(), 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;
varwbout = XLSX.write(wb, {bookType: 'xlsx', bookSST:false, type: 'binary'});
saveAs(newBlob([s2ab(wbout)], {type: "application/octet-stream"}), "test.xlsx")
}
function formatJson(jsonData) {
console.log(jsonData)
}
export function export_json_to_excel(th, jsonData, defaultTitle) {
/* original data */vardata = jsonData;
data.unshift(th);
varws_name = "SheetJS";
varwb =newWorkbook(), ws = sheet_from_array_of_arrays(data);
/* add worksheet to workbook */ wb.SheetNames.push(ws_name);
wb.Sheets[ws_name] = ws;
varwbout = XLSX.write(wb, {bookType: 'xlsx', bookSST:false, type: 'binary'});
vartitle = defaultTitle || '列表' saveAs(newBlob([s2ab(wbout)], {type: "application/octet-stream"}), title + ".xlsx")
}
==========================第三部，把调用方法 独立定义并暴露出来===============================
我是定义在utils.js中===>
exportfunction export2Excel(columns,list){
require.ensure([], () => {
const { export_json_to_excel } = require('../../excel/Export2Excel');// 这个地址 必须和你放置的文件位置一致
let tHeader = []
let filterVal = []
console.log(columns)
if(!columns){
return;
}
columns.forEach(item =>{
tHeader.push(item.title)
filterVal.push(item.key)
})
const data = list.map(v => filterVal.map(j => v[j]))
export_json_to_excel(tHeader, data, '数据列表');
})
}
======================引入这个文件
import { export2Excel } from '../../common/js/util'
data(){
return{
column:[{title:'标题1',key:"每个对象的列字段名"}]
}
}
=======================另一种定义 调用函数是这样子===================================
export2Excel(){
require.ensure([],()=>{const{export_json_to_excel}=require('../vendor/Export2Excel');consttHeader=['序号','姓名','性别',];//生成Excel表格的头部标题栏constfilterVal=['id','xp','yp','xy'];//生成Excel表格的内容栏（根据自己的数据内容属性填写）constlist=this.forlist;//需要导出Excel的数据constdata=this.formatJson(filterVal,list); export_json_to_excel(tHeader,data,'人事表');//这里可以定义你的Excel表的默认名称})},formatJson(filterVal,jsonData){returnjsonData.map(v=>filterVal.map(j=>v[j]))}},
