初识Node使用模板引擎实现Apach

原理:
  • 1.使用fs.readdir得到 wwwDir 目录列表中的文件名和目录名
  • 2.如何将得到的文件名和目录名替换到 template.html 中
    • 2.1 在 template.html 中需要替换的位置预留一个特殊的标记(就像以前使用模板引擎的标记一样)
    • 2.2 根据 files 生成需要的 HTML 内容
  • 3.发送解析替换过后的响应数据
1.安装node_modules

npm install art-template

2.渲染template页面

这个页面是直接拿的www下的html


html dir="ltr" lang="zh" i18n-processed=""

head
  meta charset="utf-8"
  meta name="google" value="notranslate"
  
  style
    h1 {
      border-bottom: 1px solid #c0c0c0;
      margin-bottom: 10px;
      padding-bottom: 10px;
      white-space: nowrap;
    }

    table {
      border-collapse: collapse;
    }

    th {
      cursor: pointer;
    }

    td.detailsColumn {
      -webkit-padding-start: 2em;
      text-align: end;
      white-space: nowrap;
    }

    a.icon {
      -webkit-padding-start: 1.5em;
      text-decoration: none;
    }

    a.icon:hover {
      text-decoration: underline;
    }

    a.file {
      background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAACQkWg2AAAABnRSTlMAAAAAAABupgeRAAABHUlEQVR42o2RMW7DIBiF3498iHRJD5JKHurL+CRVBp+i2T16tTynF2gO0KSb5ZrBBl4HHDBuK/WXACH4eO9/CAAAbdvijzLGNE1TVZXfZuHg6XCAQESAZXbOKaXO57eiKG6ft9PrKQIkCQqFoIiQFBGlFIB5nvM8t9aOX2Nd18oDzjnPgCDpn/BH4zh5XZdlWVmWiUK4IgCBoFMUz9eP6zRN75cLgEQhcmTQIbl72O0f9865qLAAsURAAgKBJKEtgLXWvyjLuFsThCSstb8rBCaAQhDYWgIZ7myM+TUBjDHrHlZcbMYYk34cN0YSLcgS+wL0fe9TXDMbY33fR2AYBvyQ8L0Gk8MwREBrTfKe4TpTzwhArXWi8HI84h/1DfwI5mhxJamFAAAAAElFTkSuQmCC ") left top no-repeat;
    }

    a.dir {
      background: url("data:image/png;base64,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 ") left top no-repeat;
    }

    a.up {
      background: url("data:image/png;base64,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 ") left top no-repeat;
    }

    html[dir=rtl] a {
      background-position-x: right;
    }

    #parentDirLinkBox {
      margin-bottom: 10px;
      padding-bottom: 10px;
    }

    #listingParsingErrorBox {
      border: 1px solid black;
      background: #fae691;
      padding: 10px;
      display: none;
    }
  /style
  title id="title"{{ title }}/title
/head

body
  div id="listingParsingErrorBox"糟糕!Google Chrome无法解读服务器所发送的数据。请a href="http://code.google.com/p/chromium/issues/entry"报告错误/a,并附上a href="LOCATION"原始列表/a/div
  h1 id="header"D:\Movie\www\ 的索引/h1
  div id="parentDirLinkBox" style="display:none"
    a id="parentDirLink" class="icon up"
    span id="parentDirText"[上级目录]/span
  /a
  /div
  table
    thead
      tr class="header" id="theader"
        th onclick="javascript:sortTable(0);"名称/th
        th class="detailsColumn" onclick="javascript:sortTable(1);"
          大小
        /th
        th class="detailsColumn" onclick="javascript:sortTable(2);"
          修改日期
        /th
      /tr
    /thead
    tbody id="tbody"
      {{each files}}
      tr
        td data-value="apple/"a class="icon dir" href="/D:/Movie/www/apple/"{{$value}}//a/td
        td class="detailsColumn" data-value="0"/td
        td class="detailsColumn" data-value="1509589967"2017/11/2 上午10:32:47/td
      /tr
      {{/each}}
    /tbody
  /table
/body

/html

3.完成index.js

var http = require('http')
var fs = require('fs')
var template = require('art-template')

var server = http.createServer()

var wwwDir = 'E:/www'

server.on('request', function (req, res) {
  var url = req.url
  fs.readFile('./template.html', function (err, data) {
    if (err) {
      return res.end('404 Not Found.')
    }
  fs.readdir(wwwDir, function (err, files) {
      if (err) {
        return res.end('Can not find www dir.')
      }    
      var htmlStr = template.render(data.toString(), {
        title: 'www',
        files: files,
        
     }    
      res.end(htmlStr)
    })
  })
})
server.listen(3000, function () {
  console.log('running...')
})


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