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style="color:#00009f">parent</span><span class="token tag punctuation" style="color:#393A34">></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><div role="tabpanel" class="tabItem_Ymn6" hidden=""><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token tag punctuation" style="color:#393A34"><</span><span class="token tag" style="color:#00009f">dependency</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain-text"> </span><span class="token tag punctuation" style="color:#393A34"><</span><span class="token tag" style="color:#00009f">groupId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text">com.gitee.pulanos.pangu</span><span class="token tag punctuation" style="color:#393A34"></</span><span class="token tag" style="color:#00009f">groupId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain-text"> </span><span class="token tag punctuation" style="color:#393A34"><</span><span class="token tag" style="color:#00009f">artifactId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text">pangu-spring-boot-starter</span><span class="token tag punctuation" style="color:#393A34"></</span><span class="token tag" style="color:#00009f">artifactId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain-text"></span><span class="token tag punctuation" style="color:#393A34"></</span><span class="token tag" style="color:#00009f">dependency</span><span class="token tag punctuation" style="color:#393A34">></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><div role="tabpanel" class="tabItem_Ymn6" hidden=""><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token tag punctuation" style="color:#393A34"><</span><span class="token tag" style="color:#00009f">dependency</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain-text"> </span><span class="token tag punctuation" style="color:#393A34"><</span><span class="token tag" style="color:#00009f">groupId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text">com.gitee.pulanos.pangu</span><span class="token tag punctuation" style="color:#393A34"></</span><span class="token tag" style="color:#00009f">groupId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain-text"> </span><span class="token tag punctuation" style="color:#393A34"><</span><span class="token tag" style="color:#00009f">artifactId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text">pangu-cache-spring-boot-starter</span><span class="token tag punctuation" style="color:#393A34"></</span><span class="token tag" style="color:#00009f">artifactId</span><span class="token tag punctuation" style="color:#393A34">></span><span class="token plain-text"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain-text"></span><span class="token tag punctuation" style="color:#393A34"></</span><span class="token tag" style="color:#00009f">dependency</span><span class="token tag punctuation" style="color:#393A34">></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div></div></div><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="本地配置">本地配置<a class="hash-link" href="#本地配置" title="标题的直接链接"></a></h2><blockquote><p>为便于理解，本文基于本地配置的方式编写。若改为标准的 Nacos 配置中心模式，请参阅：<a href="/pangu-framework/docs/advanced-guide/nacos-config-center">配置中心</a> 章节。</p></blockquote><div class="tabs-container tabList__CuJ"><ul role="tablist" aria-orientation="horizontal" class="tabs"><li role="tab" tabindex="-1" aria-selected="false" class="tabs__item tabItem_LNqP">application.properties</li><li role="tab" tabindex="0" aria-selected="true" class="tabs__item tabItem_LNqP tabs__item--active">application-dev.properties</li></ul><div class="margin-top--md"><div role="tabpanel" class="tabItem_Ymn6" hidden=""><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">profiles</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">active</span><span class="token operator" style="color:#393A34">=</span><span class="token plain">$</span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">profiles</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">active</span><span class="token operator" style="color:#393A34">:</span><span class="token plain">dev</span><span class="token punctuation" style="color:#393A34">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><div role="tabpanel" class="tabItem_Ymn6"><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">application</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">name</span><span class="token operator" style="color:#393A34">=</span><span class="token plain">pangu</span><span class="token operator" style="color:#393A34">-</span><span class="token plain">examples</span><span class="token operator" style="color:#393A34">-</span><span class="token plain">lock</span><span class="token operator" style="color:#393A34">-</span><span class="token plain">redis</span><span class="token operator" style="color:#393A34">-</span><span class="token plain">based</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># spring</span><span class="token operator" style="color:#393A34">-</span><span class="token plain">redis</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">redis</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">host</span><span class="token operator" style="color:#393A34">=</span><span class="token plain">localhost</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">redis</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">database</span><span class="token operator" style="color:#393A34">=</span><span class="token number" style="color:#36acaa">1</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">redis</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">port</span><span class="token operator" style="color:#393A34">=</span><span class="token number" style="color:#36acaa">6379</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">spring</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">redis</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">password</span><span class="token operator" style="color:#393A34">=</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">logging</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">level</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">root</span><span class="token operator" style="color:#393A34">=</span><span class="token constant" style="color:#36acaa">INFO</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">logging</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">level</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">com</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">gitee</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">pulanos</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">pangu</span><span class="token operator" style="color:#393A34">=</span><span class="token constant" style="color:#36acaa">INFO</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div></div></div><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="基于注解声明">基于注解声明<a class="hash-link" href="#基于注解声明" title="标题的直接链接"></a></h2><p>直接在需要缓存的方法上加上 <code>@Lock4j</code> 注解。</p><h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="lock4j">@Lock4j<a class="hash-link" href="#lock4j" title="标题的直接链接"></a></h3><p>分布式锁注解。</p><table><thead><tr><th>名称</th><th>默认值</th><th>说明</th></tr></thead><tbody><tr><td>name</td><td>空字符串</td><td>用于多个方法锁同一把锁 可以理解为锁资源名称，为空则会使用：包名 + 类名 + 方法名。（一般为空即可）</td></tr><tr><td>keys</td><td>空字符串</td><td>支持 SPEL 表达式，锁的 key = name + keys</td></tr><tr><td>acquireTimeout</td><td>3000</td><td>获取锁超时时间 单位：毫秒。可以理解为排队时常，超过这个时常就退出排队，抛出获取锁超时异常。</td></tr><tr><td>expire</td><td>30000</td><td>过期时间 单位：毫秒。主要是防止死锁，建议估计好你锁方法运行时常，正常没有复杂业务的增删改查最多几秒，留有一定冗余，10 秒足够。默认 30 秒是为了兼容绝大部分场景。</td></tr></tbody></table><h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="代码片段">代码片段<a class="hash-link" href="#代码片段" title="标题的直接链接"></a></h3><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic">/**</span><br></span><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"> * 默认获取锁超时 3 秒，30 秒锁过期</span><br></span><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"> */</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">@</span><span class="token maybe-class-name">Lock4j</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">public</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">void</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">doBiz</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> log</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">info</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"执行doBiz..."</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token maybe-class-name">ThreadUtil</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">sleep</span><span class="token punctuation" style="color:#393A34">(</span><span class="token number" style="color:#36acaa">25</span><span class="token operator" style="color:#393A34">*</span><span class="token number" style="color:#36acaa">1000</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token comment" style="color:#999988;font-style:italic">/**</span><br></span><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"> * 配置获取锁超时时间和锁过期时间 支持 SPEL</span><br></span><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"> * @param accountId</span><br></span><span class="token-line" style="color:#393A34"><span class="token comment" style="color:#999988;font-style:italic"> */</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">@</span><span class="token function maybe-class-name" style="color:#d73a49">Lock4j</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">keys </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token string" style="color:#e3116c">"#accountId"</span><span class="token punctuation" style="color:#393A34">}</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> expire </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">20000</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> acquireTimeout </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token number" style="color:#36acaa">10000</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">public</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">void</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">doBiz2</span><span class="token punctuation" style="color:#393A34">(</span><span class="token parameter maybe-class-name">Long</span><span class="token parameter"> accountId</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> log</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">info</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"执行doBiz2..."</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token maybe-class-name">ThreadUtil</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">sleep</span><span class="token punctuation" style="color:#393A34">(</span><span class="token number" style="color:#36acaa">20</span><span class="token operator" style="color:#393A34">*</span><span class="token number" style="color:#36acaa">1000</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="基于-api-编程">基于 API 编程<a class="hash-link" href="#基于-api-编程" title="标题的直接链接"></a></h2><p>注入 LockTemplate 对象即可使用。如下代码所示。</p><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">@</span><span class="token maybe-class-name">Component</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">public</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">ApiLockService</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> @</span><span class="token maybe-class-name">Autowired</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">private</span><span class="token plain"> </span><span class="token maybe-class-name">LockTemplate</span><span class="token plain"> lockTemplate</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">public</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">void</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">apiLock</span><span class="token punctuation" style="color:#393A34">(</span><span class="token parameter known-class-name class-name">String</span><span class="token parameter"> userId</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">//... 各种不需要上锁的操作</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token known-class-name class-name">String</span><span class="token plain"> lockKey </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> </span><span class="token string" style="color:#e3116c">"lock4j:ApiLockService:apiLock:"</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">+</span><span class="token plain"> userId</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> final </span><span class="token maybe-class-name">LockInfo</span><span class="token plain"> lockInfo </span><span class="token operator" style="color:#393A34">=</span><span class="token plain"> lockTemplate</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">lock</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">lockKey</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">//申请锁失败</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword control-flow" style="color:#00009f">if</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">(</span><span class="token keyword null nil" style="color:#00009f">null</span><span class="token plain"> </span><span class="token operator" style="color:#393A34">==</span><span class="token plain"> lockInfo</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword control-flow" style="color:#00009f">throw</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">new</span><span class="token plain"> </span><span class="token class-name">LockException</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"业务处理中，请稍后再试..."</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token comment" style="color:#999988;font-style:italic">//申请锁成功</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword control-flow" style="color:#00009f">try</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token maybe-class-name">ThreadUtil</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">sleep</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">10000L</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> log</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">info</span><span class="token punctuation" style="color:#393A34">(</span><span class="token string" style="color:#e3116c">"执行 apiLock, 当前线程{}"</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> </span><span class="token maybe-class-name">Thread</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">currentThread</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">getName</span><span class="token punctuation" style="color:#393A34">(</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"> </span><span class="token keyword control-flow" style="color:#00009f">finally</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> lockTemplate</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">releaseLock</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">lockInfo</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="启动入口">启动入口<a class="hash-link" href="#启动入口" title="标题的直接链接"></a></h2><div class="language-jsx codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-jsx codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">@</span><span class="token maybe-class-name">SpringBootApplication</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token keyword" style="color:#00009f">public</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">class</span><span class="token plain"> </span><span class="token class-name">LockPanguApplication</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token keyword" style="color:#00009f">public</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">static</span><span class="token plain"> </span><span class="token keyword" style="color:#00009f">void</span><span class="token plain"> </span><span class="token function" style="color:#d73a49">main</span><span class="token punctuation" style="color:#393A34">(</span><span class="token parameter known-class-name class-name">String</span><span class="token parameter punctuation" style="color:#393A34">[</span><span class="token parameter punctuation" style="color:#393A34">]</span><span class="token parameter"> args</span><span class="token punctuation" style="color:#393A34">)</span><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token maybe-class-name">PanGuApplicationBuilder</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">init</span><span class="token punctuation" style="color:#393A34">(</span><span class="token maybe-class-name">LockPanguApplication</span><span class="token punctuation" style="color:#393A34">.</span><span class="token property-access">class</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">.</span><span class="token method function property-access" style="color:#d73a49">run</span><span class="token punctuation" style="color:#393A34">(</span><span class="token plain">args</span><span class="token punctuation" style="color:#393A34">)</span><span class="token punctuation" style="color:#393A34">;</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> </span><span class="token punctuation" style="color:#393A34">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"></span><span class="token punctuation" style="color:#393A34">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="本文相关范例源码">本文相关范例源码<a class="hash-link" href="#本文相关范例源码" title="标题的直接链接"></a></h2><ul><li><a href="https://gitee.com/pulanos/pangu-framework/tree/master/pangu-examples/pangu-examples-lock-redis-based" target="_blank" rel="noopener noreferrer">pangu-examples-lock-redis-based</a>：分布式锁范例</li></ul><h2 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