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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="9221-什么是种子数据">9.22.1 什么是种子数据<a href="#9221-什么是种子数据" class="hash-link" aria-label="Direct link to 9.22.1 什么是种子数据" title="Direct link to 9.22.1 什么是种子数据">​</a></h2>
<p>在 <code>Furion</code> 框架中，种子数据通常指的是通过程序为数据库预先设置一些初始化数据，比如我们的数据字典表，我们可能希望在系统构建初期就自动将一些规范化数据保存到数据库中。</p>
<p>如性别：男/女，地区，行业信息等等。</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="9222-如何配置">9.22.2 如何配置<a href="#9222-如何配置" class="hash-link" aria-label="Direct link to 9.22.2 如何配置" title="Direct link to 9.22.2 如何配置">​</a></h2>
<p><code>Furion</code> 提供非常灵活方便的 <code>IEntitySeedData&lt;TEntity&gt;</code> 依赖接口可以快速的构建种子数据，支持任何无参构造函数对象类中使用。如我们需要为 <code>Person</code> 表插入初始化数据：</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="92221-在实体定义中使用">9.22.2.1 在实体定义中使用<a href="#92221-在实体定义中使用" class="hash-link" aria-label="Direct link to 9.22.2.1 在实体定义中使用" title="Direct link to 9.22.2.1 在实体定义中使用">​</a></h3>
<div class="language-cs codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-cs codeBlock_bY9V thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_e6Vv codeBlockLinesWithNumbering_o6Pm"><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">Furion</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">DatabaseAccessor</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">System</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">System</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Collections</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Generic</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain" style="display:inline-block"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">namespace</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">Furion</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Core</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></span><br></span><span class="token-line theme-code-block-highlighted-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">class</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Person</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token type-list class-name" style="color:rgb(255, 203, 107)">EntityBase</span><span class="token type-list punctuation" style="color:rgb(199, 146, 234)">,</spa
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>特别注意</div><div class="admonitionContent_BuS1"><p><code>主键</code> 值必须手动插入，因为会自动关闭主键或自增标识检查。</p></div></div>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="92222-在任意对象类中使用">9.22.2.2 在任意对象类中使用<a href="#92222-在任意对象类中使用" class="hash-link" aria-label="Direct link to 9.22.2.2 在任意对象类中使用" title="Direct link to 9.22.2.2 在任意对象类中使用">​</a></h3>
<div class="language-cs codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-cs codeBlock_bY9V thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_e6Vv codeBlockLinesWithNumbering_o6Pm"><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">Furion</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">DatabaseAccessor</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">System</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Collections</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Generic</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain" style="display:inline-block"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">namespace</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">Furion</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Application</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></span><br></span><span class="token-line theme-code-block-highlighted-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">class</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">PersonSeedData</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token type-list class-name" style="color:rgb(255, 203, 107)">IEntitySeedData</span><span class="token type-list class-name punctuation" style="color:rgb(199, 146, 234)">&lt;</span><span class="token type-list class-name" style="color:rgb(255, 203, 107)">Person</span><span class="token type-list class-name punctuation" style="color:rgb(199, 146, 234)">&gt;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"> </span><span class="token punctu
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="9223-导航属性">9.22.3 导航属性<a href="#9223-导航属性" class="hash-link" aria-label="Direct link to 9.22.3 导航属性" title="Direct link to 9.22.3 导航属性">​</a></h2>
<p>通常我们的实体有 <code>一对多</code>，<code>多对多</code>等外键关系，那么<strong>我们需要单独为每一个实体添加数据种子，而不是直接写在主表中。</strong></p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="9224-多个数据库种子数据">9.22.4 多个数据库种子数据<a href="#9224-多个数据库种子数据" class="hash-link" aria-label="Direct link to 9.22.4 多个数据库种子数据" title="Direct link to 9.22.4 多个数据库种子数据">​</a></h2>
<p><code>Furion</code> 提供泛型的方式支持多个数据库种子数据设定，如：</p>
<div class="language-cs codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-cs codeBlock_bY9V thin-scrollbar" style="color:#bfc7d5;background-color:#292d3e"><code class="codeBlockLines_e6Vv codeBlockLinesWithNumbering_o6Pm"><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">Furion</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">DatabaseAccessor</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">using</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">System</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Collections</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Generic</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain" style="display:inline-block"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token keyword" style="font-style:italic">namespace</span><span class="token plain"> </span><span class="token namespace" style="color:rgb(178, 204, 214)">Furion</span><span class="token namespace punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token namespace" style="color:rgb(178, 204, 214)">Application</span><span class="token plain"></span></span><br></span><span class="token-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></span><br></span><span class="token-line theme-code-block-highlighted-line codeLine_lJS_" style="color:#bfc7d5"><span class="codeLineNumber_Tfdd"></span><span class="codeLineContent_feaV"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">class</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">PersonSeedData</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token type-list class-name" style="color:rgb(255, 203, 107)">IEntitySeedData</span><span class="token type-list class-name punctuation" style="color:rgb(199, 146, 234)">&lt;</span><span class="token type-list class-name" style="color:rgb(255, 203, 107)">Person</span><span class="token type-list class-name punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token type-list class-name" style="color:rgb(255, 203, 107)"> MySqlDbContextLocator</span><span class="token type-list class-name punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token type-list class-name" style="color:rg
<p>上面的例子表示同时为 <code>MySqlDbContext</code> 和 <code>SqliteDbContext</code> 创建种子数据。</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="9225-反馈与建议">9.22.5 反馈与建议<a href="#9225-反馈与建议" class="hash-link" aria-label="Direct link to 9.22.5 反馈与建议" title="Direct link to 9.22.5 反馈与建议">​</a></h2>
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<div class="theme-admonition theme-admonition-note admonition_xJq3 alert alert--secondary"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M6.3 5.69a.942.942 0 0 1-.28-.7c0-.28.09-.52.28-.7.19-.18.42-.28.7-.28.28 0 .52.09.7.28.18.19.28.42.28.7 0 .28-.09.52-.28.7a1 1 0 0 1-.7.3c-.28 0-.52-.11-.7-.3zM8 7.99c-.02-.25-.11-.48-.31-.69-.2-.19-.42-.3-.69-.31H6c-.27.02-.48.13-.69.31-.2.2-.3.44-.31.69h1v3c.02.27.11.5.31.69.2.2.42.31.69.31h1c.27 0 .48-.11.69-.31.2-.19.3-.42.31-.69H8V7.98v.01zM7 2.3c-3.14 0-5.7 2.54-5.7 5.68 0 3.14 2.56 5.7 5.7 5.7s5.7-2.55 5.7-5.7c0-3.15-2.56-5.69-5.7-5.69v.01zM7 .98c3.86 0 7 3.14 7 7s-3.14 7-7 7-7-3.12-7-7 3.14-7 7-7z"></path></svg></span>了解更多</div><div class="admonitionContent_BuS1"><p>想了解更多 <code>数据种子</code> 知识可查阅 <a href="https://docs.microsoft.com/zh-cn/ef/core/modeling/data-seeding" target="_blank" rel="noopener noreferrer">EF Core - 数据种子设定</a> 章节。</p></div></div></div><footer class="theme-doc-footer docusaurus-mt-lg"><a href="http://github.crmeb.net/u/furion" target="_blank" style="display:block;margin-bottom:20px;text-decoration:none;position:relative;border-radius:5px;overflow:hidden;color:#25c2a0" title="CRMEB 专注开源电商系统研发"><img src="/img/crmeb-spec.jpg" style="display:block;pointer-events:none;max-width:100%"><span style="position:absolute;display:block;right:0;bottom:0;z-index:5;font-size:12px;background-color:rgba(0,0,0,0.8);padding:0 5px">特别赞助</span></a><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a class="ass_kwc6" style="margin:0;margin-bottom:10px;height:80px;z-index:999" href="/docs/subscribe"><div class="title_MSGy">开通 VIP 服务尊享一对一技术指导</div><div class="progress_esN_"><div class="number_F0eG">344</div><div class="percent_Dln9"><div class="current_QYTp" style="width:34.4%"></div></div><div class="number_F0eG">1000</div></div></a><a href="https://gitee.com/dotnetchina/Furion/tree/v4/handbook/docs/dbcontext-seed-data.mdx" target="_blank" rel="noopener noreferrer" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_VsjB"><div class="donate_FEDP" style="margin:0;margin-bottom:10px;border:2px solid #ffb02e;margin-top:-4px" title="您的支持是我们坚持完善下去的动力！"><div style="position:relative;margin-right:9px"><img src="/img/donateme.png" style="height:100%;max-height:100%;display:block;min-width:70px" alt="赞助 Furion"><span style="position:absolute;top:25px;left:0;right:0;font-size:12px;z-index:1;text-align:center;color:white;font-weight:bold;background-color:rgba(0, 0, 0, 0.4)">查看大图</span></div><div style="display:flex;flex:1;flex-direction:column;justify-content:space-between;padding:5px 0 5px 0"><h3 style="font-weight:500;font-size:17px;margin:4px 0 0 0;text-align:left;background:linear-gradient(to right, red, blue);background-clip:text;-webkit-background-clip:text;color:transparent;white-space:nowrap;cursor:pointer">谢谢您对 Furion 的认可！</h3><div style="display:flex;justify-content:space-between;white-space:nowrap;margin-top:10px"><span style="font-size:12px;color:#ccc">微信：ibaiqian</span><a href="https://gitee.com/dotnetchina/Furion" style="margin-right:6px" target="_blank"><img src="https://gitee.com/dotnetchina/Furion/badge/star.svg?theme=white" alt="star"></a></div></div></div><span class="theme-last-updated">Last updated<!-- --> on <b><time datetime="2023-04-25T02:22:00.000Z">Apr 25, 2023</time></b> by <b>MonkSoul</b></span></div></div><a style="display:flex;width:100%;box-sizing:border-box;align-items:center;justify-content:space-between;padding-left:5px" title="⭐️ 开通 VIP 服务仅需 499 元/年，尊享 365 天项目<EFBFBD>
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