文章目录

展示

node.js案例——仿Apache显示文件目录_Node.js

代码

注意：
在 EcmaScript 6 的 ` 字符串中，可以使用 ${} 来引用变量

template.html（文件列表）

<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/BH4zh2XZdlWVmWiUK4IgCBoFMUz9eP6zRN75cLgEQhcmTQIbl72O0f9865qLAAsURAAgKBJKEtgLXWvyjLuFsThCSstb8rBCaAQhDYWgIZ7myM+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">D:\Movie\www\ 的索引</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">^_^</tbody>
  </table>
</body>

</html>

app.js（服务端处理）

var http = require('http')
var fs = require('fs')

var server = http.createServer()

var wwwDir = 'D:/Study/MyWeb/PHP'

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.')
    }
    // 1. 如何得到 wwwDir 目录列表中的文件名和目录名
    //    fs.readdir
    // 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
    fs.readdir(wwwDir, function (err, files) {
      if (err) {
        return res.end('Can not find www dir.'+'   错误是：'+err)
      }

      // 2.1 生成需要替换的内容
      var content = ''
      files.forEach(function (item) {
        // 在 EcmaScript 6 的 ` 字符串中，可以使用 ${} 来引用变量
        content += `
          <tr>
            <td data-value="apple/"><a class="icon dir" href="/D:/Software/wamp/www/${item}">${item}/</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>
        `
      })

      // 2.3 替换
      data = data.toString()
      data = data.replace('^_^', content)

      // 3. 发送解析替换过后的响应数据
      res.end(data)
    })
  })
})
server.listen(3000, function () {
  console.log('running...')
})