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<h3 id="引入web3-js"><a href="#引入web3-js" class="headerlink" title="引入web3.js"></a>引入web3.js</h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">pnpm add web3</span><br></pre></td></tr></table></figure>
<h3 id="项目构建web3文件"><a href="#项目构建web3文件" class="headerlink" title="项目构建web3文件"></a>项目构建web3文件</h3><p>在utils目录下新建useWeb3.ts</p>
<figure class="highlight ts"><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></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> { <span class="title class_">UserStore</span> } <span class="keyword">from</span> <span class="string">'store/modules/user'</span></span><br><span class="line"><span class="keyword">export</span> <span class="keyword">function</span> <span class="title function_">useWeb3</span>(<span class="params"></span>) {</span><br><span class="line"> <span class="comment">// 获取钱包地址</span></span><br><span class="line"> <span class="keyword">async</span> <span class="keyword">function</span> <span class="title function_">getAccount</span>(<span class="params"></span>): <span class="title class_">Promise</span><<span class="built_in">any</span>> {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> <span class="title class_">Promise</span>((<span class="title function_">async</span> (resolve, reject) => {</span><br><span class="line"> <span class="keyword">await</span> <span class="title function_">isMetamask</span>()</span><br><span class="line"> .<span class="title function_">then</span>(<span class="function">(<span class="params"><span class="attr">res</span>: <span class="built_in">string</span></span>) =></span> {</span><br><span class="line"> <span class="comment">// 获取钱包地址授权</span></span><br><span class="line"> <span class="variable language_">window</span>.<span class="property">ethereum</span>.<span class="title function_">request</span>({<span class="attr">method</span>: <span class="string">'eth_requestAccounts'</span>})</span><br><span class="line"> .<span class="title function_">then</span>(<span class="function">(<span class="params"><span class="attr">res</span>: <span class="built_in">string</span>[]</span>) =></span> {</span><br><span class="line"> <span class="title function_">resolve</span>(res)</span><br><span class="line"> })</span><br><span class="line"> .<span class="title function_">catch</span>(<span class="function">(<span class="params"><span class="attr">res</span>: <span class="built_in">string</span>[]</span>) =></span> {</span><br><span class="line"> <span class="title function_">reject</span>(res)</span><br><span class="line"> })</span><br><span class="line"> })</span><br><span class="line"> .<span class="title function_">catch</span>(<span class="function">(<span class="params"><span class="attr">res</span>: <span class="built_in">string</span></span>) =></span> {</span><br><span class="line"> <span class="title function_">reject</span>(res)</span><br><span class="line"> })</span><br><span class="line"> }))</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">function</span> <span class="title function_">isMetamask</span>(<span class="params"></span>): <span class="title class_">Promise</span><<span class="built_in">string</span>> {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> <span class="title class_">Promise</span>(<span class="function">(<span class="params">resolve, reject</span>) =></span> {</span><br><span class="line"> <span class="comment">// 这一步骤是判断当前访问浏览器是否安装MetaMask</span></span><br><span class="line"> <span class="keyword">if</span> (<span class="keyword">typeof</span> <span class="variable language_">window</span>.<span class="property">ethereum</span> !== <span class="string">'undefined'</span>) {</span><br><span class="line"> <span class="title function_">resolve</span>(<span class="string">'MetaMask is installed!'</span>)</span><br><span class="line"> } <span class="keyword">else</span> {</span><br><span class="line"> <span class="title function_">reject</span>(<span class="string">'MetaMask is uninstalled!'</span>)</span><br><span class="line"> }</span><br><span class="line"> })</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> {</span><br><span class="line"> getAccount</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h3 id="配合store使用，将钱包地址存储到store里面并显示出来"><a href="#配合store使用，将钱包地址存储到store里面并显示出来" class="headerlink" title="配合store使用，将钱包地址存储到store里面并显示出来"></a>配合store使用，将钱包地址存储到store里面并显示出来</h3><p>store.ts文件</p>
<figure class="highlight ts"><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></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> { defineStore } <span class="keyword">from</span> <span class="string">'pinia'</span></span><br><span class="line"><span class="keyword">import</span> { useWeb3 } <span class="keyword">from</span> <span class="string">'src/utils/useWeb3'</span></span><br><span class="line"><span class="keyword">import</span> { store } <span class="keyword">from</span> <span class="string">'../index'</span></span><br><span class="line"><span class="keyword">interface</span> <span class="title class_">UserState</span> {</span><br><span class="line"> <span class="attr">walletAddress</span>: <span class="built_in">string</span> | <span class="literal">null</span></span><br><span class="line">}</span><br><span class="line"><span class="keyword">export</span> <span class="keyword">const</span> useUserStore = <span class="title function_">defineStore</span>({</span><br><span class="line"> <span class="attr">id</span>: <span class="string">'app-user'</span>,</span><br><span class="line"> <span class="attr">state</span>: (): <span class="function"><span class="params">UserState</span> =></span> ({</span><br><span class="line"> <span class="attr">walletAddress</span>: <span class="literal">null</span></span><br><span class="line"> }),</span><br><span class="line"> <span class="attr">getters</span>: {</span><br><span class="line"> <span class="title function_">getWalletAddress</span>(): <span class="built_in">string</span> | <span class="literal">null</span> {</span><br><span class="line"> <span class="comment">// 将store里存储的钱包地址Return出去</span></span><br><span class="line"> <span class="keyword">return</span> <span class="variable language_">this</span>.<span class="property">walletAddress</span></span><br><span class="line"> }</span><br><span class="line"> },</span><br><span class="line"> <span class="attr">actions</span>: {</span><br><span class="line"> <span class="title function_">setWalletAddress</span>(<span class="params"><span class="attr">walletAddress</span>: <span class="built_in">any</span> | <span class="literal">null</span></span>) {</span><br><span class="line"> <span class="comment">// 获取钱包地址后存储到store里面</span></span><br><span class="line"> <span class="variable language_">this</span>.<span class="property">walletAddress</span> = walletAddress</span><br><span class="line"> },</span><br><span class="line"> <span class="keyword">async</span> <span class="title function_">getWallet</span> () {</span><br><span class="line"> <span class="comment">// 获取小狐狸授权，并获取钱包地址</span></span><br><span class="line"> <span class="keyword">const</span> { getAccount } = <span class="title function_">useWeb3</span>()</span><br><span class="line"> <span class="keyword">const</span> account = <span class="keyword">await</span> <span class="title function_">getAccount</span>()</span><br><span class="line"> <span class="variable language_">this</span>.<span class="title function_">setWalletAddress</span>(account[<span class="number">0</span>])</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line">})</span><br><span class="line"><span class="keyword">export</span> <span class="keyword">function</span> <span class="title function_">UserStore</span>(<span class="params"></span>) {</span><br><span class="line"> <span class="keyword">return</span> <span class="title function_">useUserStore</span>(store)</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<h3 id="项目文件使用方法"><a href="#项目文件使用方法" class="headerlink" title="项目文件使用方法"></a>项目文件使用方法</h3><figure class="highlight plaintext"><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></pre></td><td class="code"><pre><span class="line"><script setup lang="ts"></span><br><span class="line">import { UserStore } from 'store/modules/user'</span><br><span class="line">import { computed } from 'vue'</span><br><span class="line">const user = UserStore()</span><br><span class="line">const getAddress = async () => {</span><br><span class="line"> await user.getWallet()</span><br><span class="line">}</span><br><span class="line">const walletAddress = computed((): string | null => {</span><br><span class="line"> return user.getWalletAddress</span><br><span class="line">})</span><br><span class="line"></script></span><br><span class="line"></span><br><span class="line"><template></span><br><span class="line"> <ElButton @click="getAddress" type="primary">连接钱包</ElButton></span><br><span class="line"> <div>钱包地址：{{walletAddress}}</div></span><br><span class="line"></template></span><br><span class="line"></span><br><span class="line"><style scoped></span><br><span class="line"></style></span><br></pre></td></tr></table></figure></article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta"><i class="fas fa-circle-user fa-fw"></i>文章作者: </span><span 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</div></div><div class="sticky_layout"><div class="card-widget" id="card-toc"><div class="item-headline"><i class="fas fa-stream"></i><span>目录</span><span class="toc-percentage"></span></div><div class="toc-content"><ol class="toc"><li class="toc-item toc-level-3"><a class="toc-link" href="#web3-js-%E5%BA%93%E6%98%AF%E4%B8%80%E7%B3%BB%E5%88%97%E6%A8%A1%E5%9D%97%E7%9A%84%E9%9B%86%E5%90%88%EF%BC%8C%E6%9C%8D%E5%8A%A1%E4%BA%8E%E4%BB%A5%E5%A4%AA%E5%9D%8A%E7%94%9F%E6%80%81%E7%B3%BB%E7%BB%9F%E7%9A%84%E5%90%84%E4%B8%AA%E5%8A%9F%E8%83%BD%EF%BC%8C%E5%A6%82%EF%BC%9A"><span class="toc-number">1.</span> <span class="toc-text">web3.js 库是一系列模块的集合，服务于以太坊生态系统的各个功能，如：</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E5%BC%95%E5%85%A5web3-js"><span class="toc-number">2.</span> <span class="toc-text">引入web3.js</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E9%A1%B9%E7%9B%AE%E6%9E%84%E5%BB%BAweb3%E6%96%87%E4%BB%B6"><span class="toc-number">3.</span> <span class="toc-text">项目构建web3文件</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E9%85%8D%E5%90%88store%E4%BD%BF%E7%94%A8%EF%BC%8C%E5%B0%86%E9%92%B1%E5%8C%85%E5%9C%B0%E5%9D%80%E5%AD%98%E5%82%A8%E5%88%B0store%E9%87%8C%E9%9D%A2%E5%B9%B6%E6%98%BE%E7%A4%BA%E5%87%BA%E6%9D%A5"><span class="toc-number">4.</span> <span class="toc-text">配合store使用，将钱包地址存储到store里面并显示出来</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#%E9%A1%B9%E7%9B%AE%E6%96%87%E4%BB%B6%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95"><span class="toc-number">5.</span> <span class="toc-text">项目文件使用方法</span></a></li></ol></div></div><div class="card-widget card-recent-post"><div class="item-headline"><i class="fas fa-history"></i><span>最新文章</span></div><div class="aside-list"><div class="aside-list-item"><a class="thumbnail" href="/90338fix.html" title="解决iOS分发Non-public API问题"><img src="https://s1.ax1x.com/2022/05/10/OtyPTx.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="解决iOS分发Non-public API问题"/></a><div class="content"><a class="title" href="/90338fix.html" title="解决iOS分发Non-public API问题">解决iOS分发Non-public API问题</a><time datetime="2026-01-29T02:38:20.000Z" title="发表于 2026-01-29 10:38:20">2026-01-29</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/55bb1443.html" title="关于Vite配置preprocessorOptions.scss.additionalData全局引入scss文件无效问题"><img src="https://s1.ax1x.com/2022/05/05/OeUDJA.jpg" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="关于Vite配置preprocessorOptions.scss.additionalData全局引入scss文件无效问题"/></a><div class="content"><a class="title" href="/55bb1443.html" title="关于Vite配置preprocessorOptions.scss.additionalData全局引入scss文件无效问题">关于Vite配置preprocessorOptions.scss.additionalData全局引入scss文件无效问题</a><time datetime="2025-01-06T02:48:34.000Z" title="发表于 2025-01-06 10:48:34">2025-01-06</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/e973ebbc.html" title="安装依赖超时443解决"><img src="/images/npm.png" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="安装依赖超时443解决"/></a><div class="content"><a class="title" href="/e973ebbc.html" title="安装依赖超时443解决">安装依赖超时443解决</a><time datetime="2024-09-13T07:18:32.000Z" title="发表于 2024-09-13 15:18:32">2024-09-13</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/3bc3f9fd.html" title="Git推送失败443"><img src="/images/git.png" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="Git推送失败443"/></a><div class="content"><a class="title" href="/3bc3f9fd.html" title="Git推送失败443">Git推送失败443</a><time datetime="2024-08-21T09:22:44.000Z" title="发表于 2024-08-21 17:22:44">2024-08-21</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/36de35a5.html" title="电脑共享VPN到手机方法"><img src="/images/vpn.png" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="电脑共享VPN到手机方法"/></a><div class="content"><a class="title" href="/36de35a5.html" title="电脑共享VPN到手机方法">电脑共享VPN到手机方法</a><time datetime="2024-08-21T09:03:09.000Z" title="发表于 2024-08-21 17:03:09">2024-08-21</time></div></div></div></div></div></div></main><footer id="footer"><div class="footer-other"><div class="footer-copyright"><span class="copyright">© 2022 - 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