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Express-mongoose-stu-management.html
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<!DOCTYPE html>
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基于Express+mongoose搭建的学生管理系统 |
黄明照--一个在路上慢慢行走的前端人
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<ol class="post-toc"><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#代码目录"><span class="post-toc-number">1.</span> <span class="post-toc-text">代码目录</span></a><ol class="post-toc-child"><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#创建并初始化目录"><span class="post-toc-number">1.1.</span> <span class="post-toc-text">创建并初始化目录</span></a></li></ol></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#第三方模块安装"><span class="post-toc-number">2.</span> <span class="post-toc-text">第三方模块安装</span></a><ol class="post-toc-child"><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#1-Express"><span class="post-toc-number">2.1.</span> <span class="post-toc-text">1. Express</span></a></li><li class="post-toc-item post-toc-level-3"><a class="post-toc-link" href="#2-mongoose"><span class="post-toc-number">2.2.</span> <span class="post-toc-text">2. mongoose</span></a></li></ol></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#开始写代码咯"><span class="post-toc-number">3.</span> <span class="post-toc-text">开始写代码咯~~</span></a></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#核心代码-敲黑板"><span class="post-toc-number">4.</span> <span class="post-toc-text">核心代码(敲黑板~~~)</span></a></li><li class="post-toc-item post-toc-level-2"><a class="post-toc-link" href="#结尾"><span class="post-toc-number">5.</span> <span class="post-toc-text">结尾</span></a></li></ol>
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基于Express+mongoose搭建的学生管理系统
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<strong>黄明照</strong>
<span>8月 07, 2017</span>
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<p>上一周学了下mongoose，虽然学了点皮毛，但还是想写写总结总结，这也是我的第一篇技术博客。还是蛮开心的，happy~~来，切入正题！项目源码我会放在github上。 <a href="https://github.com/ishareme/student_manage/" target="_blank" rel="noopener">github 地址</a></p>
<a id="more"></a>
<h2 id="代码目录"><a href="#代码目录" class="headerlink" title="代码目录"></a>代码目录</h2><p><img src="http://oubl6fzsm.bkt.clouddn.com/secondpost.png" alt="secondPost"></p>
<p>有些东西可根据自己喜好设置，并非必须。</p>
<h3 id="创建并初始化目录"><a href="#创建并初始化目录" class="headerlink" title="创建并初始化目录"></a>创建并初始化目录</h3><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">$ mkdir student_manage</span><br><span class="line">$ <span class="built_in">cd</span> student_manage</span><br><span class="line">$ npm init</span><br></pre></td></tr></table></figure>
<h2 id="第三方模块安装"><a href="#第三方模块安装" class="headerlink" title="第三方模块安装"></a>第三方模块安装</h2><h3 id="1-Express"><a href="#1-Express" class="headerlink" title="1. Express"></a>1. Express</h3><p><strong>1.1</strong> Express 基于 Node.js 平台，快速、开放、极简的 web 开发框架。<br> <a href="http://www.expressjs.com.cn/4x/api.html" target="_blank" rel="noopener">Express 4.x API 中文手册</a> 安装如下：</p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">$ npm install express --save</span><br></pre></td></tr></table></figure>
<p><strong>1.2</strong> body-parser用于解析客户端请求的body中的内容,内部使用JSON编码处理,url编码处理以及对于文件的上传处理。安装如下：<br><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">$ npm install body-parser --save</span><br></pre></td></tr></table></figure></p>
<h3 id="2-mongoose"><a href="#2-mongoose" class="headerlink" title="2. mongoose"></a>2. mongoose</h3><p><strong>2.1</strong> mongoose是在node.js异步环境下对mongodb进行便捷操作的对象模型工具。<br><a href="http://www.nodeclass.com/api/mongoose.html" target="_blank" rel="noopener">mongoose文档</a> 安装如下：<br><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">$ npm install mongoose --save</span><br></pre></td></tr></table></figure></p>
<h2 id="开始写代码咯"><a href="#开始写代码咯" class="headerlink" title="开始写代码咯~~"></a>开始写代码咯~~</h2><p>当然在项目开始前要确定电脑是否安装mongoDB </p>
<p><a href="https://www.mongodb.com/download-center?jmp=nav#community" target="_blank" rel="noopener">mongoDB下载地址</a> <br><a href="https://robomongo.org/download" target="_blank" rel="noopener">mongoDB图形化界面robomongo</a></p>
<p>下载好具体怎么配置还请问度娘或Google吧，本文不做介绍了哈。注意：安装完mongoDB的时候进行项目时要把lib目录下的mongod服务器打开哈~~</p>
<p>先展示下最终实现的项目效果，以防大家心里有数。</p>
<p><img src="http://oubl6fzsm.bkt.clouddn.com/QQ%E5%9B%BE%E7%89%8720170808002035.png" alt="首页"><br>首页</p>
<p><img src="http://oubl6fzsm.bkt.clouddn.com/index.png" alt="添加页"><br>添加页</p>
<p><img src="http://oubl6fzsm.bkt.clouddn.com/modify.png" alt="修改页"><br>修改页</p>
<p>前台具体代码就不列出来，比较简单，为了节约时间，就使用bootstrap进行快速生成，当然大家可以进行美化。</p>
<h2 id="核心代码-敲黑板"><a href="#核心代码-敲黑板" class="headerlink" title="核心代码(敲黑板~~~)"></a>核心代码(敲黑板~~~)</h2><ol>
<li>mydb.js 对数据库进行连接</li>
</ol>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br></pre></td><td class="code"><pre><span class="line"> //引入mongoose模块</span><br><span class="line">var mongoose=require(<span class="string">'mongoose'</span>)</span><br><span class="line"></span><br><span class="line">//数据库连接地址 链接到myStudent数据库</span><br><span class="line">var DB_URL=<span class="string">'mongodb://localhost:27017/myStudent'</span></span><br><span class="line">//数据库连接</span><br><span class="line">mongoose.connect(DB_URL)</span><br><span class="line"></span><br><span class="line">//连接成功终端显示消息</span><br><span class="line">mongoose.connection.on(<span class="string">'connected'</span>,<span class="function"><span class="title">function</span></span> () {</span><br><span class="line"> console.log(<span class="string">'mongoose connection open to '</span>+DB_URL)</span><br><span class="line">})</span><br><span class="line">//连接失败终端显示消息</span><br><span class="line">mongoose.connection.on(<span class="string">'error'</span>,<span class="function"><span class="title">function</span></span> () {</span><br><span class="line"> console.log(<span class="string">'mongoose error '</span>)</span><br><span class="line">})</span><br><span class="line">//连接断开终端显示消息</span><br><span class="line">mongoose.connection.on(<span class="string">'disconnected'</span>,<span class="function"><span class="title">function</span></span> () {</span><br><span class="line"> console.log(<span class="string">'mongoose disconnected'</span>)</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//创建一个Schema 每一个schema会一一对应mongo中的collection</span><br><span class="line">var schema=mongoose.Schema</span><br><span class="line"></span><br><span class="line">//实例化一个Schema</span><br><span class="line">var studentSchema=new schema(</span><br><span class="line"> {</span><br><span class="line"> //设置studentSchema信息的数据格式</span><br><span class="line"> name:{<span class="built_in">type</span>:String},</span><br><span class="line"> sex:{<span class="built_in">type</span>:String},</span><br><span class="line"> age:{<span class="built_in">type</span>:Number},</span><br><span class="line"> phone:{<span class="built_in">type</span>:String},</span><br><span class="line"> email:{<span class="built_in">type</span>:String},</span><br><span class="line"> other:{<span class="built_in">type</span>:String},</span><br><span class="line"> },</span><br><span class="line"> //{versionKey: <span class="literal">false</span>}是干嘛用？如果不加这个设置，我们通过mongoose第一次创建某个集合时，</span><br><span class="line"> // 它会给这个集合设定一个versionKey属性值，我们不需要，所以不让它显示</span><br><span class="line"> {</span><br><span class="line"> versionKey:<span class="literal">false</span></span><br><span class="line"> }</span><br><span class="line">)</span><br><span class="line"></span><br><span class="line">//生成一个具体student的model并导出</span><br><span class="line">//第一个参数是集合名，在数据库中会自动加s</span><br><span class="line">//把Model名字字母全部变小写和在后面加复数s</span><br><span class="line">var student=mongoose.model(<span class="string">'student'</span>,studentSchema)</span><br><span class="line">//将Student的model导出</span><br><span class="line">module.exports=student</span><br></pre></td></tr></table></figure>
<p>里面的代码我已逐条进行注释。有几个要说明的地方：1.可能大家看到Schema的时候有一点懵，不过他理解起来挺简单的就像关系型数据库里面的表。定义可以这么讲：<strong>schema</strong>是mongoose里会用到的一种数据模式，<strong>可以理解为表结构的定义；每个schema会映射到mongodb中的一个collection</strong>，它不具备操作数据库的能力。2.生成一个student的model的时候，如果myStudent数据库里面没有student(第一个参数的值)集合的话，系统会自动创建一个students的collection，注意在student后面加了<strong>s</strong>。</p>
<ol>
<li>app.js<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span 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class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br><span class="line">138</span><br><span class="line">139</span><br><span class="line">140</span><br><span class="line">141</span><br><span class="line">142</span><br><span class="line">143</span><br><span class="line">144</span><br><span class="line">145</span><br><span class="line">146</span><br><span class="line">147</span><br><span class="line">148</span><br><span class="line">149</span><br><span class="line">150</span><br><span class="line">151</span><br><span 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class="code"><pre><span class="line">//导入express模块</span><br><span class="line">var expres=require(<span class="string">'express'</span>)</span><br><span class="line">var bodyParser=require(<span class="string">'body-parser'</span>)</span><br><span class="line">//导入之前写的mydb.js</span><br><span class="line">var student=require(<span class="string">'./mydb'</span>)</span><br><span class="line"></span><br><span class="line">//调用函数， express实例化</span><br><span class="line">var app=expres()</span><br><span class="line"></span><br><span class="line">app.use(bodyParser.urlencoded({extended:<span class="literal">false</span>}))</span><br><span class="line">app.use(bodyParser.json())</span><br><span class="line"></span><br><span class="line">//处理静态目录</span><br><span class="line">app.use(expres.static(<span class="string">'www'</span>))</span><br><span class="line"></span><br><span class="line">// 允许跨域访问／／／</span><br><span class="line">app.all(<span class="string">'/api/*'</span>, <span class="keyword">function</span> (req, res, next) {</span><br><span class="line"> res.header(<span class="string">'Access-Control-Allow-Origin'</span>, <span class="string">'*'</span>)</span><br><span class="line"> res.header(<span class="string">'Access-Control-Allow-Headers'</span>, <span class="string">'x-Request-with'</span>)</span><br><span class="line"> res.header(<span class="string">'Access-Control-Allow-Methods'</span>, <span class="string">'PUT,POST,GET,DELETE,OPTIONS'</span>)</span><br><span class="line"> res.header(<span class="string">'X-Powered-By'</span>, <span class="string">'4.15.2'</span>)</span><br><span class="line"> res.header(<span class="string">'Content-Type'</span>, <span class="string">'application/json;charset=utf-8'</span>)</span><br><span class="line"> next() //执行下一个中间件。</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//首页展示获取数据</span><br><span class="line">app.post(<span class="string">'/index'</span>,<span class="keyword">function</span> (req,res) {</span><br><span class="line"> //mongoose 数据查找</span><br><span class="line"> student.find({}).<span class="built_in">exec</span>(<span class="keyword">function</span> (error,data) {</span><br><span class="line"> <span class="keyword">if</span> (error){</span><br><span class="line"> console.log(<span class="string">'数据获取失败'</span>+error)</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span>{</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'查询成功'</span>,</span><br><span class="line"> //传递返回的数据</span><br><span class="line"> data:data</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//修改页面 获取数据</span><br><span class="line">app.post(<span class="string">'/modify'</span>,<span class="keyword">function</span> (req,res) {</span><br><span class="line"> //mongoose根据条件进行查找</span><br><span class="line"> student.find({_id: req.body.id}).<span class="built_in">exec</span>(<span class="keyword">function</span> (error,data) {</span><br><span class="line"> console.log(<span class="string">'2'</span>)</span><br><span class="line"> <span class="keyword">if</span> (error){</span><br><span class="line"> console.log(<span class="string">'数据获取失败'</span>+error)</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span>{</span><br><span class="line"> console.log(data)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'查询成功'</span>,</span><br><span class="line"> data:data</span><br><span class="line"> })</span><br><span class="line"> console.log(4)</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//修改提交修改数据库</span><br><span class="line">app.post(<span class="string">'/modifyStu'</span>,<span class="keyword">function</span> (req,res) {</span><br><span class="line"> console.log(<span class="string">'1'</span>)</span><br><span class="line"> console.log(req.body)</span><br><span class="line"> //查询的条件</span><br><span class="line"> var whereStr={_id:req.body.id}</span><br><span class="line"> //更新的内容</span><br><span class="line"> var updateStr={</span><br><span class="line"> <span class="variable">$set</span>:{</span><br><span class="line"> name:req.body.name,</span><br><span class="line"> sex:req.body.sex,</span><br><span class="line"> age: req.body.age,</span><br><span class="line"> phone:req.body.phone,</span><br><span class="line"> email:req.body.email,</span><br><span class="line"> other:req.body.other,</span><br><span class="line"></span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> //对数据库进行更新</span><br><span class="line"> student.update(whereStr,updateStr,<span class="keyword">function</span> (error) {</span><br><span class="line"> <span class="keyword">if</span> (error){</span><br><span class="line"> console.log(<span class="string">'数据修改失败:'</span>+error)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'修改失败'</span>,</span><br><span class="line"> data:req.body</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span>{</span><br><span class="line"> console.log(<span class="string">'数据修改成功'</span>)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'修改成功'</span>,</span><br><span class="line"> data:req.body</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//删除数据库其中的项</span><br><span class="line">app.post(<span class="string">'/del'</span>,<span class="keyword">function</span> (req,res) {</span><br><span class="line"> //mongoose根据指定条件进行删除</span><br><span class="line"> student.remove({_id: req.body.id},<span class="keyword">function</span>(error){</span><br><span class="line"> <span class="keyword">if</span> (error){</span><br><span class="line"> console.log(<span class="string">'数据获取失败'</span>+error)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'删除不成功'</span>,</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span>{</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'删除成功'</span>,</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//导航栏search操作</span><br><span class="line">app.post(<span class="string">'/findName'</span>,<span class="keyword">function</span> (req,res) {</span><br><span class="line"> console.log(req.body.searchName)</span><br><span class="line"> student.find({name: req.body.searchName}).<span class="built_in">exec</span>(<span class="keyword">function</span> (error,data) {</span><br><span class="line"> <span class="keyword">if</span> (error){</span><br><span class="line"> console.log(<span class="string">'查询失败'</span>+error)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'查询失败'</span>,</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span>{</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'查询成功'</span>,</span><br><span class="line"> data:data</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//添加数据库操作</span><br><span class="line">app.post(<span class="string">'/addStu'</span>,<span class="keyword">function</span> (req,res) {</span><br><span class="line"> console.log(req.body)</span><br><span class="line"> //实例化一个student</span><br><span class="line"> var newStu=new student({</span><br><span class="line"> name:req.body.name,</span><br><span class="line"> sex:req.body.sex,</span><br><span class="line"> age:req.body.age,</span><br><span class="line"> phone:req.body.phone,</span><br><span class="line"> email:req.body.email,</span><br><span class="line"> other:req.body.other,</span><br><span class="line"></span><br><span class="line"> })</span><br><span class="line"> //对实例化的内容进行保存</span><br><span class="line"> newStu.save(<span class="keyword">function</span> (error) {</span><br><span class="line"> <span class="keyword">if</span> (error){</span><br><span class="line"> console.log(<span class="string">'数据添加失败:'</span>+error)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'添加失败'</span>,</span><br><span class="line"> data:req.body</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span> {</span><br><span class="line"> console.log(<span class="string">'数据添加成功'</span>)</span><br><span class="line"> res.json({</span><br><span class="line"> status:<span class="string">'y'</span>,</span><br><span class="line"> message:<span class="string">'添加成功'</span>,</span><br><span class="line"> data:req.body</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line">})</span><br><span class="line"></span><br><span class="line">//服务器监听端口</span><br><span class="line">app.listen(3000,()=>{</span><br><span class="line"> console.log(<span class="string">'node is ok'</span>)</span><br><span class="line">})</span><br></pre></td></tr></table></figure>
</li>
</ol>
<p>到处服务器搭建完成，接下来就是对各个js代码进行操作，ajax获取表单数据请求服务器，ajax获取地址栏请求服务器等等。然后ajax在接收到服务器返回的数据，对此进行渲染到前台页面，此项目我用的是 <strong>artTemplate</strong> 进行模板渲染。</p>
<p>就举一个栗子吧~~</p>
<ol>
<li>添加页的 addAjax.js<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br></pre></td><td class="code"><pre><span class="line"></span><br><span class="line">$(<span class="function"><span class="title">function</span></span> () {</span><br><span class="line"></span><br><span class="line"> //添加表单验证方法 手机号的验证</span><br><span class="line"> $.validator.addMethod(<span class="string">'isPhone'</span>,<span class="keyword">function</span> (value,ele) {</span><br><span class="line"> var length=value.length</span><br><span class="line"> var reg=/^1[34578]\d{9}$/</span><br><span class="line"> <span class="keyword">if</span> (length >= 11 && reg.test(value)){</span><br><span class="line"> <span class="built_in">return</span> <span class="literal">true</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span> {</span><br><span class="line"> <span class="built_in">return</span> <span class="literal">false</span></span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line"></span><br><span class="line"> //对表单进行验证</span><br><span class="line"> $(<span class="string">'#addForm'</span>).validate({</span><br><span class="line"> debug:<span class="literal">true</span>,</span><br><span class="line"> //验证的规则</span><br><span class="line"> rules:{</span><br><span class="line"> name:{</span><br><span class="line"> required:<span class="literal">true</span>,</span><br><span class="line"> minlength:3</span><br><span class="line"> },</span><br><span class="line"> age:{</span><br><span class="line"> required:<span class="literal">true</span></span><br><span class="line"> },</span><br><span class="line"> phone:{</span><br><span class="line"> required:<span class="literal">true</span>,</span><br><span class="line"> isPhone:<span class="literal">true</span></span><br><span class="line"> },</span><br><span class="line"> email:{</span><br><span class="line"> required:<span class="literal">true</span>,</span><br><span class="line"> email:<span class="literal">true</span></span><br><span class="line"> }</span><br><span class="line"> },</span><br><span class="line"> //错误的提示信息</span><br><span class="line"> messages:{</span><br><span class="line"> name:{</span><br><span class="line"> required:<span class="string">'姓名不能为空'</span>,</span><br><span class="line"> minlength:<span class="string">'姓名不能少于3位'</span></span><br><span class="line"> },</span><br><span class="line"> age:{</span><br><span class="line"> required:<span class="string">'年龄不能为空'</span></span><br><span class="line"> },</span><br><span class="line"> phone:{</span><br><span class="line"> required:<span class="string">'手机号不能为空'</span>,</span><br><span class="line"> isPhone:<span class="string">'手机号格式错误'</span></span><br><span class="line"> },</span><br><span class="line"> email:{</span><br><span class="line"> required:<span class="string">'邮箱不能为空'</span>,</span><br><span class="line"> email:<span class="string">'邮箱格式错误'</span></span><br><span class="line"> }</span><br><span class="line"> },</span><br><span class="line"> //正确时执行的函数</span><br><span class="line"> submitHandler:<span class="keyword">function</span> (form) {</span><br><span class="line"> //ajax请求</span><br><span class="line"> $.ajax({</span><br><span class="line"> <span class="built_in">type</span>:<span class="string">'post'</span>,</span><br><span class="line"> url:<span class="string">'/addStu'</span>,</span><br><span class="line"> dataType:<span class="string">'json'</span>,</span><br><span class="line"> //表单数据序列化</span><br><span class="line"> data:$(form).serialize(),</span><br><span class="line"> //ajax请求成功操作</span><br><span class="line"> success:<span class="keyword">function</span> (res) {</span><br><span class="line"> $(<span class="string">'.modal-body'</span>).text(res.message)</span><br><span class="line"> //显示出模态框</span><br><span class="line"> $(<span class="string">'.modal'</span>).modal(<span class="string">'show'</span>).on(<span class="string">'hidden.bs.modal'</span>,<span class="function"><span class="title">function</span></span> () {</span><br><span class="line"> <span class="keyword">if</span> (res.message == <span class="string">'添加成功'</span>){</span><br><span class="line"> location.href=<span class="string">'index.html'</span></span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line"> },</span><br><span class="line"> //ajax请求失败操作</span><br><span class="line"> error:<span class="keyword">function</span> (jqXHR) {</span><br><span class="line"> console.log(jqXHR.status)</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line"> },</span><br><span class="line"></span><br><span class="line"> })</span><br><span class="line">})</span><br></pre></td></tr></table></figure>
</li>
</ol>
<p>表单验证我用了 <strong>jquery.validate.js</strong></p>
<ol>
<li><p>添加完毕，首页进行渲染 index.html(部分)</p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line">{{each}}</span><br><span class="line"> <tr></span><br><span class="line"> <td>{{<span class="variable">$value</span>.name}}</td></span><br><span class="line"> <td>{{<span class="variable">$value</span>.sex}}</td></span><br><span class="line"> <td>{{<span class="variable">$value</span>.age}}</td></span><br><span class="line"> <td>{{<span class="variable">$value</span>.phone}}</td></span><br><span class="line"> <td>{{<span class="variable">$value</span>.email}}</td></span><br><span class="line"> <td></span><br><span class="line"> <a href=<span class="string">"/modify.html?id={{<span class="variable">$value</span>._id}}"</span> class=<span class="string">"modify"</span> data-index=<span class="string">"{{<span class="variable">$value</span>._id}}"</span>>修改</a></span><br><span class="line"> <a href=<span class="string">""</span> class=<span class="string">"del"</span> data-index=<span class="string">"{{<span class="variable">$value</span>._id}}"</span>>删除</a></span><br><span class="line"> </td></span><br><span class="line"> </tr></span><br><span class="line"> {{/each}}</span><br></pre></td></tr></table></figure>
</li>
<li><p>首页的 indexAjax.js(部分)</p>
<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line">$(<span class="function"><span class="title">function</span></span> () {</span><br><span class="line"> $.ajax({</span><br><span class="line"> <span class="built_in">type</span>:<span class="string">'post'</span>,</span><br><span class="line"> url:<span class="string">'/index'</span>,</span><br><span class="line"> success:<span class="keyword">function</span> (res) {</span><br><span class="line"> //进行模板渲染</span><br><span class="line"> var strHtml=template(<span class="string">'showStu'</span>,res.data)</span><br><span class="line"> $(<span class="string">'#tb'</span>).html(strHtml)</span><br><span class="line"> </span><br><span class="line"> ......代码有点长就不放了哈~~........</span><br></pre></td></tr></table></figure>
</li>
</ol>
<h2 id="结尾"><a href="#结尾" class="headerlink" title="结尾"></a>结尾</h2><p> 夜已深。不知不觉写这个文章也花了挺长时间的，哈哈哈，不过自己开心就行~~ 自己在做这个项目的时候，以为会很快搞完，但是还是遇到了问题，哎，纠结了好久，现在也没得出个答案，后来用了另一种的解决方法，感觉有点像投机取巧，但好像也不能怎么说，哈哈…个人技术水平真的很渣，写文章一方面是分享，一方面是再次重温自己的思路。请勿喷哈~~自己的第一篇技术博客，写的有点匆忙，不过还是希望可以给大家带来帮助。<br> <br> <br> <br> 于 厦门高崎新村 自己的小屋
</p>
<p>本文首发于个人博客 >> <a href="http://www.huangmingzhao.cn/">黄明照–一个在路上慢慢行走的前端人</a></p>
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