vue实现导出Word文件(数据流方式)
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jquery.wordexport.js，通过该插件可以导出文本和图片，图片通过canvas的形式绘制，文本则需要依赖FileSaver.js插件。
FileSaver.js插件则主要通过H5的文件操作新特性new Blob()和new FileReader()来实现文本的导出。
第一步：安装依赖：jquery 和file-saver
npm install jquery file-saver --save第二步：新增jquery.wordexport.js
在class="lazy" data-src下的assets中新增js文件夹，新增jquery.wordexport.js文件
// 导入js文件
import $ from 'jquery'
import saveAs from 'file-saver'
if (typeof $ !== "undefined" && typeof saveAs !== "undefined") {
(function ($) {
$.fn.wordExport = function (fileName) {
fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export";
var statics = {
mhtml: {
top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n<html>\n_html_</html>",
head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n",
body: "<body>_body_</body>"
}
};
var options = {
maxWidth: 624
};
// Clone selected element before manipulating it
var markup = $(this).clone();
// Remove hidden elements from the output
markup.each(function () {
var self = $(this);
if (self.is(':hidden'))
self.remove();
});
// Embed all images using Data URLs
var images = Array();
var img = markup.find('img');
for (var i = 0; i < img.length; i++) {
// Calculate dimensions of output image
var w = Math.min(img[i].width, options.maxWidth);
var h = img[i].height * (w / img[i].width);
// Create canvas for converting image to data URL
var canvas = document.createElement("CANVAS");
canvas.width = w;
canvas.height = h;
// Draw image to canvas
var context = canvas.getContext('2d');
context.drawImage(img[i], 0, 0, w, h);
// Get data URL encoding of image
var uri = canvas.toDataURL("image/png/jpg");
$(img[i]).attr("class="lazy" data-src", img[i].class="lazy" data-src);
img[i].width = w;
img[i].height = h;
// Save encoded image to array
images[i] = {
type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")),
encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")),
location: $(img[i]).attr("class="lazy" data-src"),
data: uri.substring(uri.indexOf(",") + 1)
};
}
// Prepare bottom of mhtml file with image data
var mhtmlBottom = "\n";
for (var j = 0; j < images.length; j++) {
mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n";
mhtmlBottom += "Content-Location: " + images[j].location + "\n";
mhtmlBottom += "Content-Type: " + images[j].type + "\n";
mhtmlBottom += "Content-Transfer-Encoding: " + images[j].encoding + "\n\n";
mhtmlBottom += images[j].data + "\n\n";
}
mhtmlBottom += "--NEXT.ITEM-BOUNDARY--";
//TODO: load css from included stylesheet
//var styles=' @font-face{font-family:宋体;panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-alt:SimSun;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;} @font-face{font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;mso-font-charset:1;mso-generic-font-family:roman;mso-font-format:other;mso-font-pitch:variable;mso-font-signature:0 0 0 0 0 0;} @font-face{font-family:"\@宋体";panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;}p.MsoNormal, li.MsoNormal, div.MsoNormal{mso-style-unhide:no;mso-style-qformat:yes;mso-style-parent:"";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:14.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoHeader, li.MsoHeader, div.MsoHeader{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页眉 Char";margin:0cm;margin-bottom:.0001pt;text-align:center;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoFooter, li.MsoFooter, div.MsoFooter{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页脚 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoAcetate, li.MsoAcetate, div.MsoAcetate{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"批注框文本 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.Char{mso-style-name:"页眉 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页眉;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char0{mso-style-name:"页脚 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页脚;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char1{mso-style-name:"批注框文本 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:批注框文本;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}p.msochpdefault, li.msochpdefault, div.msochpdefault{mso-style-name:msochpdefault;mso-style-unhide:no;mso-margin-top-alt:auto;margin-right:0cm;mso-margin-bottom-alt:auto;margin-left:0cm;mso-pagination:widow-orphan;font-size:10.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.msonormal0{mso-style-name:msonormal;mso-style-unhide:no;}.MsoChpDefault{mso-style-type:export-only;mso-default-props:yes;font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt;} @page WordSection1{size:595.3pt 841.9pt;margin:72.0pt 90.0pt 72.0pt 90.0pt;mso-header-margin:42.55pt;mso-footer-margin:49.6pt;mso-paper-source:0;}div.WordSection1{page:WordSection1;}';
var styles = "";
// Aggregate parts of the file together
var fileContent = statics.mhtml.top.replace("_html_", statics.mhtml.head.replace("_styles_", styles) + statics.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom;
// Create a Blob with the file contents
var blob = new Blob([fileContent], {
type: "application/msword;charset=utf-8"
});
saveAs(blob, fileName + ".doc");
};
})($);
} else {
if (typeof $ === "undefined") {
console.error("jQuery Word Export: missing dependency (jQuery)");
}
if (typeof saveAs === "undefined") {
console.error("jQuery Word Export: missing dependency (FileSaver.js)");
}
}
第三步：组件使用
注意：只能写行内样式
<template>
<div class="home">
<button @click="exportWord">导出</button>
<div id="word_demo">
<p style="font-size:20px;color:red;">评标区</p>
<h1 style="font-size:20px;color:blue;">标题</h1>
<img alt="Vue logo" class="lazy" data-src="../assets/logo.png" />
</div>
</div>
</template>import $ from 'jquery'
require('@/assets/js/jquery.wordexport')
export default {
name: 'Home',
methods: {
exportWord() {
setTimeout(function() {
$('#word_demo').wordExport('word文档')
}, 300)
},
},
}vue导出Word文件（模板方式）
扩展
jquery.wordexport.js源码
if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") {
(function ($) {
$.fn.wordExport = function (fileName) {
fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export";
var statics = {
mhtml: {
top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n<html>\n_html_</html>",
head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n",
body: "<body>_body_</body>"
}
};
var options = {
maxWidth: 624
};
// Clone selected element before manipulating it
var markup = $(this).clone();
// Remove hidden elements from the output
markup.each(function () {
var self = $(this);
if (self.is(':hidden'))
self.remove();
});
// Embed all images using Data URLs
var images = Array();
var img = markup.find('img');
for (var i = 0; i < img.length; i++) {
// Calculate dimensions of output image
var w = Math.min(img[i].width, options.maxWidth);
var h = img[i].height * (w / img[i].width);
// Create canvas for converting image to data URL
var canvas = document.createElement("CANVAS");
canvas.width = w;
canvas.height = h;
// Draw image to canvas
var context = canvas.getContext('2d');
context.drawImage(img[i], 0, 0, w, h);
// Get data URL encoding of image
var uri = canvas.toDataURL("image/png/jpg");
$(img[i]).attr("class="lazy" data-src", img[i].class="lazy" data-src);
img[i].width = w;
img[i].height = h;
// Save encoded image to array
images[i] = {
type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")),
encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")),
location: $(img[i]).attr("class="lazy" data-src"),
data: uri.substring(uri.indexOf(",") + 1)
};
}
// Prepare bottom of mhtml file with image data
var mhtmlBottom = "\n";
for (var i = 0; i < images.length; i++) {
mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n";
mhtmlBottom += "Content-Location: " + images[i].location + "\n";
mhtmlBottom += "Content-Type: " + images[i].type + "\n";
mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + "\n\n";
mhtmlBottom += images[i].data + "\n\n";
}
mhtmlBottom += "--NEXT.ITEM-BOUNDARY--";
//TODO: load css from included stylesheet
//var styles=' @font-face{font-family:宋体;panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-alt:SimSun;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;} @font-face{font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;mso-font-charset:1;mso-generic-font-family:roman;mso-font-format:other;mso-font-pitch:variable;mso-font-signature:0 0 0 0 0 0;} @font-face{font-family:"\@宋体";panose-1:2 1 6 0 3 1 1 1 1 1;mso-font-charset:134;mso-generic-font-family:auto;mso-font-pitch:variable;mso-font-signature:3 680460288 22 0 262145 0;}p.MsoNormal, li.MsoNormal, div.MsoNormal{mso-style-unhide:no;mso-style-qformat:yes;mso-style-parent:"";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:14.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoHeader, li.MsoHeader, div.MsoHeader{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页眉 Char";margin:0cm;margin-bottom:.0001pt;text-align:center;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoFooter, li.MsoFooter, div.MsoFooter{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"页脚 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;layout-grid-mode:char;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}p.MsoAcetate, li.MsoAcetate, div.MsoAcetate{mso-style-noshow:yes;mso-style-priority:99;mso-style-link:"批注框文本 Char";margin:0cm;margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:9.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.Char{mso-style-name:"页眉 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页眉;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char0{mso-style-name:"页脚 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:页脚;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}span.Char1{mso-style-name:"批注框文本 Char";mso-style-noshow:yes;mso-style-priority:99;mso-style-unhide:no;mso-style-locked:yes;mso-style-link:批注框文本;font-family:宋体;mso-ascii-font-family:宋体;mso-fareast-font-family:宋体;mso-hansi-font-family:宋体;}p.msochpdefault, li.msochpdefault, div.msochpdefault{mso-style-name:msochpdefault;mso-style-unhide:no;mso-margin-top-alt:auto;margin-right:0cm;mso-margin-bottom-alt:auto;margin-left:0cm;mso-pagination:widow-orphan;font-size:10.0pt;font-family:宋体;mso-bidi-font-family:宋体;}span.msonormal0{mso-style-name:msonormal;mso-style-unhide:no;}.MsoChpDefault{mso-style-type:export-only;mso-default-props:yes;font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size:10.0pt;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-font-kerning:0pt;} @page WordSection1{size:595.3pt 841.9pt;margin:72.0pt 90.0pt 72.0pt 90.0pt;mso-header-margin:42.55pt;mso-footer-margin:49.6pt;mso-paper-source:0;}div.WordSection1{page:WordSection1;}';
var styles = "";
// Aggregate parts of the file together
var fileContent = statics.mhtml.top.replace("_html_", statics.mhtml.head.replace("_styles_", styles) + statics.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom;
// Create a Blob with the file contents
var blob = new Blob([fileContent], {
type: "application/msword;charset=utf-8"
});
saveAs(blob, fileName + ".doc");
};
})(jQuery);
} else {
if (typeof jQuery === "undefined") {
console.error("jQuery Word Export: missing dependency (jQuery)");
}
if (typeof saveAs === "undefined") {
console.error("jQuery Word Export: missing dependency (FileSaver.js)");
}
}
FileSaver.js源码
var saveAs = saveAs || (function (view) {
"use strict";
// IE <10 is explicitly unsupported
if (typeof view === "undefined" || typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {
return;
}
var
doc = view.document
// only get URL when necessary in case Blob.js hasn't overridden it yet
, get_URL = function () {
return view.URL || view.webkitURL || view;
}
, save_link = doc.createElementNS("http://www.w3.org/1999/xhtml", "a")
, can_use_save_link = "download" in save_link
, click = function (node) {
var event = new MouseEvent("click");
node.dispatchEvent(event);
}
, is_safari = /constructor/i.test(view.HTMLElement)
, is_chrome_ios = /CriOS\/[\d]+/.test(navigator.userAgent)
, throw_outside = function (ex) {
(view.setImmediate || view.setTimeout)(function () {
throw ex;
}, 0);
}
, force_saveable_type = "application/octet-stream"
// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to
, arbitrary_revoke_timeout = 1000 * 40 // in ms
, revoke = function (file) {
var revoker = function () {
if (typeof file === "string") { // file is an object URL
get_URL().revokeObjectURL(file);
} else { // file is a File
file.remove();
}
};
setTimeout(revoker, arbitrary_revoke_timeout);
}
, dispatch = function (filesaver, event_types, event) {
event_types = [].concat(event_types);
var i = event_types.length;
while (i--) {
var listener = filesaver["on" + event_types[i]];
if (typeof listener === "function") {
try {
listener.call(filesaver, event || filesaver);
} catch (ex) {
throw_outside(ex);
}
}
}
}
, auto_bom = function (blob) {
// prepend BOM for UTF-8 XML and text
function base64DataURLToArrayBuffer (dataURL) {
const base64Regex = /^data:image\/(png|jpg|jpeg|svg|svg\+xml);base64,/;
if (!base64Regex.test(dataURL)) {
return false;
}
const stringBase64 = dataURL.replace(base64Regex, "");
let binaryString;
if (typeof window !== "undefined") {
binaryString = window.atob(stringBase64);
} else {
binaryString = new Buffer(stringBase64, "base64").toString("binary");
}
const len = binaryString.length;
const bytes = new Uint8Array(len);
for (let i = 0; i < len; i++) {
const ascii = binaryString.charCodeAt(i);
bytes[i] = ascii;
}
return bytes.buffer;
}
export const exportWord = (tempDocxPath, wordData, fileName, imgSize) => {
// 这里要引入处理图片的插件
var ImageModule = require('docxtemplater-image-module-free');
const expressions = require("angular-expressions");
// 读取并获得模板文件的二进制内容
JSZipUtils.getBinaryContent(tempDocxPath, function (error, content) {
if (error) {
throw error;
}
expressions.filters.size = function (input, width, height) {
return {
data: input,
size: [width, height],
};
};
// function angularParser (tag) {
// const expr = expressions.compile(tag.replace(/'/g, "'"));
// return {
// get (scope) {
// return expr(scope);
// },
// };
// }
// 图片处理
let opts = {}
opts = {
// 图像是否居中
centered: false
};
opts.getImage = (chartId) => {
// console.log(chartId);//base64数据
// 将base64的数据转为ArrayBuffer
return base64DataURLToArrayBuffer(chartId);
}
opts.getSize = function (img, tagValue, tagName) {
// console.log(img);//ArrayBuffer数据
// console.log(tagValue);//base64数据
// console.log(tagName);//wordData对象的图像属性名
// 自定义指定图像大小
if (imgSize.hasOwnProperty(tagName)){
return imgSize[tagName];
} else {
return [600, 350];
}
}
// 创建一个PizZip实例，内容为模板的内容
let zip = new PizZip(content);
// 创建并加载docxtemplater实例对象
let doc = new docxtemplater();
doc.attachModule(new ImageModule(opts));
doc.loadZip(zip);
doc.setData(wordData);
try {
// 用模板变量的值替换所有模板变量
doc.render();
} catch (error) {
// 抛出异常
let e = {
message: error.message,
name: error.name,
stack: error.stack,
properties: error.properties
};
console.log(JSON.stringify({
error: e
}));
throw error;
}
// 生成一个代表docxtemplater对象的zip文件（不是一个真实的文件，而是在内存中的表示）
let out = doc.getZip().generate({
type: "blob",
mimeType: "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
});
// 将目标文件对象保存为目标类型的文件，并命名
saveAs(out, fileName);
});
}
3.组件调用
<template>
<a-form-model
ref="ruleForm"
:model="form"
:rules="rules"
:label-col="labelCol"
:wrapper-col="wrapperCol"
>
<a-form-model-item label="名称" prop="name">
<a-input-number v-model="form.name" style="width:100%;"/>
</a-form-model-item>
<a-form-model-item label="日期" prop="date">
<a-input v-model="form.date" />
</a-form-model-item>
<a-form-model-item label="文件">
<a-input v-model="form.imgUrl" read-only/>
<a-upload name="file" :showUploadList="false" :customRequest="customRequest">
<a-button type="primary" icon="upload">导入图片</a-button>
</a-upload>
</a-form-model-item>
<a-form-model-item label="操作">
<a-button type="primary" icon="export" @click="exportWordFile">导出word文档</a-button>
</a-form-model-item>
</a-form-model>
</template><script>
import {exportWord} from '@/assets/js/exportFile.js'
export default {
name: 'ExportFile',
data () {
return {
labelCol: { span: 6 },
wrapperCol: { span: 16 },
form: {},
rules: {
name: [
{ required: true, message: '请输入名称！', trigger: 'blur' },
],
date:[
{ required: true, message: '请输入日期！', trigger: 'blur' },
],
},
};
},
created (){},
methods: {
customRequest (data){
//图片必须转成base64格式
var reader = new FileReader();
reader.readAsDataURL(data.file);
reader.onload = () => {
// console.log("file 转 base64结果：" + reader.result);
this.form.imgUrl = reader.result; //imgUrl必须与模板文件里的参数名一致
};
reader.onerror = function (error) {
console.log("Error: ", error);
};
},
exportWordFile (){
let imgSize = {
imgUrl:[65, 65], //控制导出的word图片大小
};
exportWord("./static/test.docx", this.form, "demo.docx", imgSize);
//参数1：模板文档
//参数2：字段参数
//参数3：输出文档
//参数4：图片大小
}
},
};
</script>4.创建test.docx文档模板。注：使用vue-cli2的时候，放在static目录下；使用vue-cli3的时候，放在public目录下。
模板参数名需与字段一致，普通字段：{字段名}，图片字段：{%字段名}
文档内容：
5.导出demo.docx结果
以上为个人经验，希望能给大家一个参考，也希望大家多多支持编程网。
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