nodejs生成导出word

导出word的功能，目前看了两个模块：officegen 和 docxtemplater

officegen是自己绘制word格式： https://github.com/Ziv-Barber/officegen

docxtemplater以模板替换的模式 ： https://docxtemplater.readthedocs.io/en/latest/installation.html

officegen操作

1. 安装

npm install officegen

2. 使用

import * as officegen from 'officegen'
import { createWriteStream } from 'fs'
import { Request, Response } from 'express';

export function createWord(req: Request, res: Response) {

  const docx = officegen('docx')
  docx.on('finalize', function (written) {
    console.log('word创建完成.')
  })
  docx.on('error', function (err) {
    console.log(err)
  })
  // Create a new paragraph: 
  /*
  addText(内容, {
    color: 字体颜色string,
    back: 后背景颜色string,
    bold: 加粗 boolean,默认是false
    underline:下划线默认false,
    highlight: 提亮，默认黄色,
    link: 添加一个链接
    align: 位置， center/right
  })
  */
  let pObj = docx.createP()
  pObj.addText('Simple')
  pObj.addText(' with color', { color: '000088' })
  pObj.addText(' and back color.', { color: '00ffff', back: '000088' })

  pObj = docx.createP()

  pObj.addText('Since ')
  pObj.addText('officegen 0.2.12', {
    back: '00ffff',
    shdType: 'pct12',
    shdColor: 'ff0000'
  })

  // Use pattern in the background.
  pObj.addText(' you can do ')
  pObj.addText('高亮 ', { highlight: true }) // Highlight!
  pObj.addText('填充!', { highlight: 'darkGreen' }) // Different highlight color.

  pObj = docx.createP()
  // 添加一个链接
  pObj.addText('这是一个链接 ')
  pObj.addText('点我', { underline: true, color: '000088', link: 'https://github.com' })
  pObj.addText('!')

  pObj = docx.createP()
  pObj.addText('加粗—+下划线', { bold: true, underline: true })

  pObj = docx.createP({ align: 'center' })

  pObj.addText('加边框', {
    border: 'dotted',
    borderSize: 12,
    borderColor: '88CCFF'
  })

  pObj = docx.createP()
  pObj.options.align = 'right'

  pObj.addText('Align this text to the right.')

  pObj = docx.createP()

  pObj.addText('Those two lines are in the same paragraph,')
  pObj.addLineBreak()// 换行
  pObj.addText('but they are separated by a line break.')

  docx.putPageBreak()//换页

  pObj = docx.createP()

  pObj.addText('Fonts face only.', { font_face: 'Arial' })
  pObj.addText(' 换字体并加大.', { font_face: 'Arial', font_size: 40 })

  pObj = docx.createP({align: 'center'})
  // pObj.options.align = 'center'
  pObj.addText('学生信息', { bold: true, font_face: 'Arial', font_size: 18 })
  let tableStyle = {
    tableColWidth: 2400,
    tableSize: 24,
    tableColor: "ada",
    tableAlign: "center",
    tableVAlign: "center",
    tableFontFamily: "Comic Sans MS",
    borders: true
  }
  let table: any = [
    [{
      val: '姓名',
      opts: {
        align: "center",
        vAlign: "center",
        sz: '36',
        // cellColWidth: 42,
        // b: true,
        // shd: {
        //   fill: "7F7F7F",
        //   themeFill: "text1",
        //   "themeFillTint": "80"
        // },
        // fontFamily: "Avenir Book"
      }
    }, {
      val: '性别',
      opts: {
        align: "center",
        vAlign: "center",
        sz: '36',
      }
    }, {
      val: '年龄',
      opts: {
        align: "center",
        vAlign: "center",
        sz: '36',
      }
    }]
  ]

  let student1 = ['李四', '男', 12]
  let student2 = ['李四2', '男', 28]
  table.push(student1, student2)
  // 表格
  docx.createTable(table, tableStyle)

  docx.putPageBreak()

  pObj = docx.createP()

  // 添加图片
  pObj.addImage('dd.jpg')


/* 服务器生成文件
  let out = createWriteStream('example.docx')

  out.on('error', function (err) {
    console.log(err)
  })

  // Async call to generate the output file:
  docx.generate(out) 
*/
  // 返回给前端，前端直接下载
  res.writeHead(200, {
    // 注意这里的type设置，导出不同文件type值不同application/vnd.openxmlformats-officedocument.wordprocessingml.document
    "Content-Type": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
    'Content-disposition': 'attachment; filename=out-' + new Date().getTime() + '.docx'
  });
  docx.generate(res)
} 

docxtemplater操作，图片替换是需要收费的

1. 安装

npm install docxtemplater pizzip

2. 使用

var PizZip = require('pizzip');
var Docxtemplater = require('docxtemplater');
import { Request, Response } from 'express';

var fs = require('fs');
var path = require('path');

// The error object contains additional information when logged with JSON.stringify (it contains a properties object containing all suberrors).
function replaceErrors(key, value) {
  if (value instanceof Error) {
    return Object.getOwnPropertyNames(value).reduce(function (error, key) {
      error[key] = value[key];
      return error;
    }, {});
  }
  return value;
}

function errorHandler(error) {
  console.log(JSON.stringify({ error: error }, replaceErrors));

  if (error.properties && error.properties.errors instanceof Array) {
    const errorMessages = error.properties.errors.map(function (error) {
      return error.properties.explanation;
    }).join("
");
    console.log('errorMessages', errorMessages);
  }
  throw error;
}

export function paddingWord(req: Request, res: Response) {

  console.log( path.resolve( __dirname, '../input.docx'), )

  // 读取模板 加载的docx文件为二进制
  var content = fs
    .readFileSync(path.resolve(__dirname, '../src/input.docx'), 'binary');

  var zip = new PizZip(content);
  var doc;
  try {
    doc = new Docxtemplater(zip);
  } catch (error) {
    // Catch compilation errors (errors caused by the compilation of the template : misplaced tags)
    errorHandler(error);
  }

  //set the templateVariables
  doc.setData({
    first_name: 'John',
    last_name: 'Doe',
    phone: '0652455478',
    description: 'New Website。。。'
  });

  try {
   doc.render() // 匹配
  }
  catch (error) {
    errorHandler(error);
  }
  // 生成二进制流
  var buf = doc.getZip().generate({ type: 'nodebuffer' });
  res.writeHead(200, {
    "Content-Type": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
    'Content-disposition': `attachment; filename= ${new Date().getTime()}.docx`
});

  res.end(buf)
  // buf is a nodejs buffer, you can either write it to a file or do anything else with it.
  // fs.writeFileSync(path.resolve(__dirname, 'output.docx'), buf);
}