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大三上数据库项目总结
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<h2 id="SCNU-CS-2018-DatabaseProject"><a href="#SCNU-CS-2018-DatabaseProject" class="headerlink" title="SCNU-CS-2018-DatabaseProject"></a>SCNU-CS-2018-DatabaseProject</h2><p>最近打算整理一下上学期的项目作业到 Github 上，同时 post 到博客上以作记录与归档。这一次分享的是数据库课程项目，为了能够快速实现需求，我选用了微后端框架 Flask+web 的形式进行开发。</p>
<p>在与同学的合作下，两个子项目的开发与撰写文档分别花了将近一周的时间，完成了课程的基本和额外要求，具体的内容请参见 <span class="exturl" data-url="aHR0cHM6Ly9naXRodWIuY29tL2NoYXJmb2xlL1NDTlUtQ1MtMjAxOC1EYXRhYmFzZVByb2plY3Q=">GitHub<i class="fa fa-external-link-alt"></i></span>。</p>
<p>课程一共有两阶段的任务，要求分别选取一款传统型数据库和 NoSQL 数据库，在 Linux 环境下部署服务端，以 C/S 架构实现数据库的各项基本功能和部分特色操作。</p>
<p>本项目选用的是 MySQL 和 Redis ，由于课程不对性能作要求，因此为了能够快速实现要求的功能，项目选用了 Flask 作为服务端，并以 web 的方式开发客户端，具体的项目框架请参照下图。</p>
<p><img src="https://charfole-blog.oss-cn-shenzhen.aliyuncs.com/image/MySQL架构图.png" alt="MySQL架构图"></p>
<a id="more"></a>
<h2 id="开发环境与依赖"><a href="#开发环境与依赖" class="headerlink" title="开发环境与依赖"></a>开发环境与依赖</h2><p><strong>CentOS Linux release 8.3.2011</strong><br>(项目使用阿里云服务器，可兼容其他类型云服务器或虚拟机，尚未在其它系统实现，因此不保证兼容性)</p>
<p><strong>python 3.6</strong></p>
<p><strong>MySQL 8.0.21</strong></p>
<p><strong>Redis 5.0.3</strong></p>
<p>其余依赖均包含在项目对应的虚拟环境文件夹 (DatabaseVenv) </p>
<h2 id="部署流程"><a href="#部署流程" class="headerlink" title="部署流程"></a>部署流程</h2><ol>
<li><p>clone 本仓库</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">git clone https://github.com/charfole/SCNU-CS-2018-DatabaseProject.git</span><br><span class="line">cd SCNU-CS-2018-DatabaseProject</span><br></pre></td></tr></table></figure>
</li>
<li><p>在 Linux 环境下安装相关依赖</p>
<p>安装Python、MySQL和Redis，安装教程可参照菜鸟教程(<span class="exturl" data-url="aHR0cHM6Ly93d3cucnVub29iLmNvbS9weXRob24zL3B5dGhvbjMtaW5zdGFsbC5odG1s">Python<i class="fa fa-external-link-alt"></i></span>, <span class="exturl" data-url="aHR0cHM6Ly93d3cucnVub29iLmNvbS9teXNxbC9teXNxbC1pbnN0YWxsLmh0bWw=">MySQL<i class="fa fa-external-link-alt"></i></span>, <span class="exturl" data-url="aHR0cHM6Ly93d3cucnVub29iLmNvbS9yZWRpcy9yZWRpcy1pbnN0YWxsLmh0bWw=">Redis<i class="fa fa-external-link-alt"></i></span>)</p>
</li>
<li><p>部署 MySQL 项目</p>
<ul>
<li><p>创建数据表</p>
<figure class="highlight shell"><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></pre></td><td class="code"><pre><span class="line">cd MySQL/data</span><br><span class="line"><span class="meta">#</span><span class="bash"> 在连接mysql数据库后执行</span></span><br><span class="line">source cardTable.sql</span><br><span class="line">source geoTable.sql</span><br><span class="line">source userTable.sql</span><br><span class="line"></span><br><span class="line"><span class="meta">#</span><span class="bash"> PS:除此之外，也可以通过Navicat等DBMS修改并执行三个sql文件</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>修改数据库连接信息</p>
<figure class="highlight python"><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"><span class="comment"># 打开 MySQL/backend/app.py</span></span><br><span class="line"><span class="comment"># 根据个人情况修改user、password和db三个参数，确保连接到希望操纵的数据库</span></span><br><span class="line">conn = pymysql.connect(host=<span class="string">'127.0.0.1'</span>, user=<span class="string">'root'</span>, password=<span class="string">''</span>, db=<span class="string">'charfoleTable'</span>, charset=<span class="string">'utf8'</span>) <span class="comment"># connect to the database</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>部署后端代码</p>
<figure class="highlight shell"><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></pre></td><td class="code"><pre><span class="line">source ../DatabaseVenv/bin/activate</span><br><span class="line">cd MySQL/backend</span><br><span class="line">gunicorn -b :5000 app:app # debug模式运行</span><br><span class="line">gunicorn -c config.py app:app # config模式运行</span><br></pre></td></tr></table></figure>
</li>
</ul>
</li>
<li><p>修改 MySQL 客户端对应的 IP 地址</p>
<figure class="highlight javascript"><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></pre></td><td class="code"><pre><span class="line"><span class="comment">// 打开 MySQL/web/page.html</span></span><br><span class="line"><span class="comment">// 根据个人情况，将所有出现yourIPAddress语句中的yourIPAddress替换为你部署flask的ip（服务器ip或者是虚拟机的ip）</span></span><br><span class="line"></span><br><span class="line">url: <span class="string">"http://yourIPAddress:5000/charfoleTransaction"</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 修改完后，打开page.html并刷新即可成功运行项目</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>部署 Redis 项目</p>
<ul>
<li><p>创建数据</p>
<figure class="highlight shell"><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></pre></td><td class="code"><pre><span class="line">cd Redis/data</span><br><span class="line"></span><br><span class="line"><span class="meta">#</span><span class="bash"> 将 Redis/data/charfole.csv 中的数据写入redis的第0号数据库</span></span><br><span class="line">python3 readData.py</span><br></pre></td></tr></table></figure>
</li>
<li><p>部署后端代码</p>
<figure class="highlight shell"><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></pre></td><td class="code"><pre><span class="line">source ../DatabaseVenv/bin/activate</span><br><span class="line">cd MySQL/backend</span><br><span class="line">gunicorn -b :5000 app:app # debug模式运行</span><br><span class="line">gunicorn -c config.py app:app # config模式运行</span><br></pre></td></tr></table></figure>
</li>
</ul>
</li>
<li><p>修改 Redis 客户端对应的 IP 地址</p>
</li>
</ol>
<figure class="highlight javascript"><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></pre></td><td class="code"><pre><span class="line"><span class="comment">// 打开 Redis/web/page.html</span></span><br><span class="line"><span class="comment">// 根据个人情况，将所有出现yourIPAddress语句中的yourIPAddress替换为你部署flask的ip（服务器ip或者是虚拟机的ip）</span></span><br><span class="line"></span><br><span class="line">url: <span class="string">"http://yourIPAddress:5000/charfoleCRUD"</span></span><br><span class="line"></span><br><span class="line"><span class="comment">// 修改完后，打开page.html并刷新即可成功运行项目</span></span><br></pre></td></tr></table></figure>
<h2 id="实现的功能"><a href="#实现的功能" class="headerlink" title="实现的功能"></a>实现的功能</h2><ol>
<li>MySQL项目<ul>
<li>执行基本的 SQL 语句，包括但不限于增删查改、索引、跨表操作</li>
<li>事务支持（execute、commit、rollback）</li>
<li>用户性能查询（仅在后端实现、需提前创建对应的用户并修改后端代码）</li>
</ul>
</li>
<li>Redis项目<ul>
<li>Redis 的基本功能，对数据库中所包含的键值对进行增删查改</li>
<li><span class="exturl" data-url="aHR0cHM6Ly93d3cucnVub29iLmNvbS9yZWRpcy9yZWRpcy1oeXBlcmxvZ2xvZy5odG1s">基数查询<i class="fa fa-external-link-alt"></i></span>（Hyperloglog）功能</li>
</ul>
</li>
</ol>
<p>由于篇幅所限，更多的功能说明请参照<span class="exturl" data-url="aHR0cHM6Ly9naXRodWIuY29tL2NoYXJmb2xlL1NDTlUtQ1MtMjAxOC1EYXRhYmFzZVByb2plY3QvdHJlZS9tYXN0ZXIvaW5mb3JtYXRpb24vJUU5JUExJUI5JUU3JTlCJUFFJUU2JTk2JTg3JUU2JUExJUEz">项目文档<i class="fa fa-external-link-alt"></i></span>。</p>
<h2 id="项目截图"><a href="#项目截图" class="headerlink" title="项目截图"></a>项目截图</h2><ol>
<li><p>MySQL</p>
<p><img src="https://charfole-blog.oss-cn-shenzhen.aliyuncs.com/image/MySQL项目截图-1613657129070.png" alt="MySQL项目截图"></p>
</li>
<li><p>Redis</p>
<p><img src="https://charfole-blog.oss-cn-shenzhen.aliyuncs.com/image/Redis项目截图-1613657154813.png" alt="Redis项目截图"></p>
</li>
</ol>
<h2 id="写在后面"><a href="#写在后面" class="headerlink" title="写在后面"></a>写在后面</h2><p>为了快速兑现课程要求的相关功能，因此项目在性能、鲁棒性方面有所欠缺。如发现有错误或不足，十分欢迎 issue 或 pr。希望能帮助到学习该门课程的同学。</p>
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<div class="post-toc motion-element"><ol class="nav"><li class="nav-item nav-level-2"><a class="nav-link" href="#SCNU-CS-2018-DatabaseProject"><span class="nav-number">1.</span> <span class="nav-text">SCNU-CS-2018-DatabaseProject</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#开发环境与依赖"><span class="nav-number">2.</span> <span class="nav-text">开发环境与依赖</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#部署流程"><span class="nav-number">3.</span> <span class="nav-text">部署流程</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#实现的功能"><span class="nav-number">4.</span> <span class="nav-text">实现的功能</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#项目截图"><span class="nav-number">5.</span> <span class="nav-text">项目截图</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#写在后面"><span class="nav-number">6.</span> <span class="nav-text">写在后面</span></a></li></ol></div>
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