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2026-01-02 06:43:41 +08:00 · 2025-12-31 16:00:29 +00:00
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+      <small><time class="date dt-published" datetime="2019-06-24T00:00:00+08:00">24 June 2019</time> - 字数统计：2209 - 阅读大约需要8分钟 - Hits: <span id="/2019/06/24/up.html" class="visitors">Loading...</span></small>
+<h1 class="p-name">如何利用MySQL数据库制作一个图站</h1>
+
+<p class="view">by <a class="p-author h-card" href="//github.com/Mabbs">mayx</a></p>
+<div id="outdate" style="display:none;">
+  <hr /><p>
+  这是一篇创建于 <span id="outime"></span> 天前的文章，其中的信息可能已经有所发展或是发生改变。
+  </p>
+</div>
+<script>
+  daysold = Math.floor((new Date().getTime() - new Date("Mon, 24 Jun 2019 00:00:00 +0800").getTime()) / (24 * 60 * 60 * 1000));
+  if (daysold > 90) {
+    document.getElementById("outdate").style.display = "block";
+    document.getElementById("outime").innerHTML = daysold;
+  }
+</script>
+
+<hr />
+
+<b>AI摘要</b>
+<p id="ai-output">这篇文章讲述了如何利用MySQL数据库创建一个简单的图站服务。首先，作者介绍了如何建立了一个名为`FileUP`的数据库表，用于存储文件信息如文件名、内容和大小。接着，PHP代码展示了处理文件上传、查询和下载的过程，提到了MySQL的文件大小限制（大约16MB），以及存在的断点续传问题。作者提到想通过切片上传技术来解决文件大小限制，但需前端支持，并给出了一个WebUploader的链接。文章最后提到暂时不打算改进这个方案，但可能会继续思考如何实现断点续传。</p>
+
+<hr />
+
+
+
+<ul><li><a href="#talk-is-cheapshow-me-the-code">Talk is cheap,show me the code</a></li><li><a href="#缺点">缺点</a></li><li><a href="#演示随时gg">演示（随时GG）</a></li><li><a href="#下一步改进的打算">下一步改进的打算</a></li></ul>
+<hr />
+
+
+ <main class="post-content e-content" role="main"><p>最近白嫖了一个500GB的数据库，想想怎么利用一下？<!--more--></p>
+<h1 id="talk-is-cheapshow-me-the-code">
+  
+  
+    <a href="#talk-is-cheapshow-me-the-code"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> Talk is cheap,show me the code
+  
+  
+</h1>
+    
+
+<p>数据库建表：</p>
+<div class="language-sql highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="k">CREATE</span> <span class="k">TABLE</span> <span class="nv">`FileUP`</span> <span class="p">(</span>
+ <span class="nv">`ID`</span> <span class="nb">int</span><span class="p">(</span><span class="mi">11</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="n">AUTO_INCREMENT</span><span class="p">,</span>
+ <span class="nv">`Name`</span> <span class="nb">text</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
+ <span class="nv">`File`</span> <span class="nb">longblob</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
+ <span class="nv">`Size`</span> <span class="nb">int</span><span class="p">(</span><span class="mi">11</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
+ <span class="k">PRIMARY</span> <span class="k">KEY</span> <span class="p">(</span><span class="nv">`ID`</span><span class="p">)</span>
+<span class="p">)</span> <span class="n">ENGINE</span><span class="o">=</span><span class="n">InnoDB</span> <span class="k">DEFAULT</span> <span class="n">CHARSET</span><span class="o">=</span><span class="n">gb2312</span><span class="p">;</span> 
+</code></pre></div></div>
+
+<p>PHP代码：</p>
+<div class="language-php highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="cp">&lt;?php</span>
+<span class="nv">$con</span><span class="o">=</span><span class="nb">mysqli_connect</span><span class="p">(</span><span class="s2">"数据库地址"</span><span class="p">,</span><span class="s2">"用户名"</span><span class="p">,</span><span class="s2">"密码"</span><span class="p">,</span><span class="s2">"数据库名"</span><span class="p">);</span> 
+<span class="k">if</span> <span class="p">(</span><span class="nf">mysqli_connect_errno</span><span class="p">(</span><span class="nv">$con</span><span class="p">))</span> 
+<span class="p">{</span> 
+    <span class="k">die</span><span class="p">(</span><span class="s2">"连接 MySQL 失败: "</span> <span class="mf">.</span> <span class="nf">mysqli_connect_error</span><span class="p">());</span> 
+<span class="p">}</span>
+
+<span class="k">if</span> <span class="p">(</span> <span class="nv">$_GET</span><span class="p">[</span><span class="no">ID</span><span class="p">]</span> <span class="o">!=</span> <span class="s1">''</span> <span class="p">)</span> <span class="p">{</span>
+    <span class="nb">header</span><span class="p">(</span><span class="s1">'Access-Control-Allow-Origin: *'</span><span class="p">);</span>
+    <span class="nv">$sql</span> <span class="o">=</span> <span class="s2">"SELECT * FROM `FileUP` WHERE `ID` = '"</span><span class="mf">.</span><span class="nb">addslashes</span><span class="p">(</span><span class="nv">$_GET</span><span class="p">[</span><span class="no">ID</span><span class="p">])</span><span class="mf">.</span><span class="s2">"' "</span><span class="p">;</span>
+    <span class="nv">$result</span> <span class="o">=</span> <span class="nv">$con</span><span class="o">-&gt;</span><span class="nf">query</span><span class="p">(</span><span class="nv">$sql</span><span class="p">);</span>
+    <span class="k">if</span> <span class="p">(</span><span class="nv">$result</span><span class="o">-&gt;</span><span class="n">num_rows</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
+        <span class="k">while</span><span class="p">(</span><span class="nv">$row</span> <span class="o">=</span> <span class="nv">$result</span><span class="o">-&gt;</span><span class="nf">fetch_assoc</span><span class="p">()){</span> 
+         <span class="nb">Header</span> <span class="p">(</span> <span class="s2">"Content-type: application/octet-stream"</span> <span class="p">);</span> 
+         <span class="nb">Header</span> <span class="p">(</span> <span class="s2">"Accept-Ranges: bytes"</span> <span class="p">);</span> 
+         <span class="nb">Header</span> <span class="p">(</span> <span class="s2">"Accept-Length: "</span> <span class="mf">.</span> <span class="nv">$row</span><span class="p">[</span><span class="s2">"Size"</span><span class="p">]</span> <span class="p">);</span> 
+         <span class="nb">Header</span> <span class="p">(</span> <span class="s2">"Content-Disposition: attachment; filename="</span> <span class="mf">.</span> <span class="nv">$row</span><span class="p">[</span><span class="s2">"Name"</span><span class="p">]</span> <span class="p">);</span>
+        <span class="k">echo</span> <span class="nv">$row</span><span class="p">[</span><span class="s2">"File"</span><span class="p">];</span>
+    <span class="p">}</span>
+<span class="p">}</span> 
+    <span class="k">else</span> <span class="p">{</span>
+ <span class="nb">header</span><span class="p">(</span><span class="s1">'HTTP/1.1 404 NOT FOUND'</span><span class="p">);</span> 
+<span class="p">}</span>
+<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+<span class="k">echo</span> <span class="s1">'&lt;title&gt;Mayx图床&lt;/title&gt;
+&lt;h1&gt;Mayx图床&lt;/h1&gt;&lt;hr&gt;
+请选择需要上传的文件
+&lt;form enctype="multipart/form-data" method="post" action=""&gt;
+  &lt;input type="file" name="File" /&gt;
+  &lt;input type="submit" name="submit" value="submit" /&gt;
+&lt;/form&gt;
+&lt;br /&gt;'</span><span class="p">;</span>
+<span class="k">if</span> <span class="p">(</span> <span class="nv">$_SERVER</span><span class="p">[</span><span class="s1">'REQUEST_METHOD'</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"POST"</span> <span class="p">)</span> <span class="p">{</span>
+ <span class="nv">$error</span> <span class="o">=</span> <span class="nv">$_FILES</span><span class="p">[</span><span class="s1">'File'</span><span class="p">][</span><span class="s1">'error'</span><span class="p">];</span>
+ <span class="nv">$tmp_name</span> <span class="o">=</span> <span class="nv">$_FILES</span><span class="p">[</span><span class="s1">'File'</span><span class="p">][</span><span class="s1">'tmp_name'</span><span class="p">];</span>
+ <span class="nv">$size</span> <span class="o">=</span> <span class="nv">$_FILES</span><span class="p">[</span><span class="s1">'File'</span><span class="p">][</span><span class="s1">'size'</span><span class="p">];</span>
+ <span class="nv">$name</span> <span class="o">=</span> <span class="nv">$_FILES</span><span class="p">[</span><span class="s1">'File'</span><span class="p">][</span><span class="s1">'name'</span><span class="p">];</span>
+ <span class="k">print</span><span class="p">(</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">);</span>
+ <span class="k">if</span> <span class="p">(</span><span class="nv">$error</span> <span class="o">==</span> <span class="no">UPLOAD_ERR_OK</span> <span class="o">&amp;&amp;</span> <span class="nv">$size</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
+  <span class="nv">$fp</span> <span class="o">=</span> <span class="nb">fopen</span><span class="p">(</span><span class="nv">$tmp_name</span><span class="p">,</span> <span class="s1">'r'</span><span class="p">);</span>
+  <span class="nv">$content</span> <span class="o">=</span> <span class="nb">fread</span><span class="p">(</span><span class="nv">$fp</span><span class="p">,</span> <span class="nv">$size</span><span class="p">);</span>
+  <span class="nb">fclose</span><span class="p">(</span><span class="nv">$fp</span><span class="p">);</span>  
+  <span class="nv">$content</span> <span class="o">=</span> <span class="nb">addslashes</span><span class="p">(</span><span class="nv">$content</span><span class="p">);</span>
+  <span class="nv">$sql</span> <span class="o">=</span> <span class="s2">"INSERT INTO `FileUP` (`Name`, `File`, `Size`)
+ VALUES ('"</span><span class="mf">.</span><span class="nv">$name</span><span class="mf">.</span><span class="s2">"', '"</span><span class="mf">.</span><span class="nv">$content</span><span class="mf">.</span><span class="s2">"', '"</span><span class="mf">.</span><span class="nv">$size</span><span class="mf">.</span><span class="s2">"');"</span><span class="p">;</span>
+  <span class="nv">$con</span><span class="o">-&gt;</span><span class="nf">query</span><span class="p">(</span><span class="nv">$sql</span><span class="p">);</span>
+  <span class="nv">$sql</span> <span class="o">=</span> <span class="s2">"select @@identity;"</span><span class="p">;</span>
+  <span class="nv">$result</span> <span class="o">=</span> <span class="nv">$con</span><span class="o">-&gt;</span><span class="nf">query</span><span class="p">(</span><span class="nv">$sql</span><span class="p">);</span>
+<span class="k">while</span><span class="p">(</span><span class="nv">$row</span> <span class="o">=</span> <span class="nv">$result</span><span class="o">-&gt;</span><span class="nf">fetch_assoc</span><span class="p">())</span> <span class="p">{</span>
+<span class="k">echo</span> <span class="s1">'上传完成，文件下载地址：&lt;a href="//'</span><span class="mf">.</span><span class="nv">$_SERVER</span><span class="p">[</span><span class="s1">'HTTP_HOST'</span><span class="p">]</span><span class="mf">.</span><span class="nv">$_SERVER</span><span class="p">[</span><span class="s1">'REQUEST_URI'</span><span class="p">]</span><span class="mf">.</span><span class="s2">"?ID="</span><span class="mf">.</span><span class="nv">$row</span><span class="p">[</span><span class="s1">'@@identity'</span><span class="p">]</span><span class="mf">.</span><span class="s1">'" &gt;'</span><span class="mf">.</span><span class="nv">$_SERVER</span><span class="p">[</span><span class="s1">'HTTP_X_FORWARDED_PROTO'</span><span class="p">]</span><span class="mf">.</span><span class="s1">'://'</span><span class="mf">.</span><span class="nv">$_SERVER</span><span class="p">[</span><span class="s1">'HTTP_HOST'</span><span class="p">]</span><span class="mf">.</span><span class="nv">$_SERVER</span><span class="p">[</span><span class="s1">'REQUEST_URI'</span><span class="p">]</span><span class="mf">.</span><span class="s2">"?ID="</span><span class="mf">.</span><span class="nv">$row</span><span class="p">[</span><span class="s1">'@@identity'</span><span class="p">]</span><span class="mf">.</span><span class="s1">'&lt;/a&gt;'</span><span class="p">;</span>
+<span class="p">}</span>
+
+ <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
+  <span class="k">echo</span> <span class="s2">"文件上传错误！"</span><span class="p">;</span>
+ <span class="p">}</span>
+
+<span class="p">}</span>
+
+<span class="k">echo</span> <span class="s1">'&lt;hr /&gt;
+&lt;center&gt;&lt;a href="https://mabbs.github.io/"&gt;By Mayx&lt;/a&gt;&lt;/center&gt;'</span><span class="p">;</span>
+
+<span class="p">}</span>
+
+<span class="nf">mysqli_close</span><span class="p">(</span><span class="nv">$con</span><span class="p">);</span>
+</code></pre></div></div>
+<h1 id="缺点">
+  
+  
+    <a href="#缺点"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 缺点
+  
+  
+</h1>
+    
+<p><del>MySQL保存文件有限制，好像只能存16MB左右😓</del>（改max_allowed_packet就可以了） </p><p>
+  另外就是断点续传的问题，这个问题我回头再想一想吧。</p>
+<h1 id="演示随时gg">
+  
+  
+    <a href="#演示随时gg"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 演示（随时GG）
+  
+  
+</h1>
+    
+<p><a href="https://mayx.leanapp.cn/up.php">https://mayx.leanapp.cn/up.php</a></p>
+<h1 id="下一步改进的打算">
+  
+  
+    <a href="#下一步改进的打算"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 下一步改进的打算
+  
+  
+</h1>
+    
+<p><del>想搞成切片上传，这样就没有文件大小上传的限制了。 </p><p>
+  不过这个好像得前端支持，先放个链接在这里吧：<a href="https://github.com/fex-team/webuploader">https://github.com/fex-team/webuploader</a></del>  </p><p>
+  不打算改进了……</p></main> 
+
+
+<small style="display: block">tags: <a rel="category tag" class="p-category" href="/search.html?keyword=MySQL"><em>MySQL</em></a> - <a rel="category tag" class="p-category" href="/search.html?keyword=%E6%95%B0%E6%8D%AE%E5%BA%93"><em>数据库</em></a> - <a rel="category tag" class="p-category" href="/search.html?keyword=%E5%9B%BE%E7%AB%99"><em>图站</em></a> - <a rel="category tag" class="p-category" href="/search.html?keyword=PHP"><em>PHP</em></a> <span style="float: right;"><a href="https://gitlab.com/mayx/mayx.gitlab.io/tree/master/_posts/2019-06-24-up.md">查看原始文件</a></span></small>
+
+
+<h4 style="border-bottom: 1px solid #e5e5e5;margin: 2em 0 5px;">推荐文章</h4>
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