https://lxxyyy.cn/Recent content on Lxxyy BlogHugo -- gohugo.iozh-CNSun, 02 Aug 2026 00:00:00 +0000https://lxxyyy.cn/learn/java/jvm-notes/Sun, 02 Aug 2026 00:00:00 +0000https://lxxyyy.cn/learn/java/jvm-notes/<h2 id="jvm-内存区域">JVM 内存区域 </h2><p>Java 虚拟机在执行 Java 程序的过程中会把它所管理的内存划分为若干个不同的数据区域。</p> <h3 id="运行时数据区域">运行时数据区域 </h3><ul> <li><strong>堆 (Heap)</strong>：对象实例，GC 主要工作区域</li> <li><strong>方法区 (Method Area)</strong>：类信息、常量池</li> <li><strong>虚拟机栈 (JVM Stack)</strong>：栈帧、局部变量</li> <li><strong>本地方法栈 (Native Stack)</strong>：Native 方法</li> <li><strong>程序计数器 (PC Register)</strong>：当前执行的字节码行号</li> </ul> <h3 id="垃圾回收算法">垃圾回收算法 </h3><table> <thead> <tr> <th>算法</th> <th>优点</th> <th>缺点</th> </tr> </thead> <tbody> <tr> <td>标记-清除</td> <td>简单</td> <td>内存碎片</td> </tr> <tr> <td>标记-整理</td> <td>无碎片</td> <td>移动对象成本高</td> </tr> <tr> <td>复制算法</td> <td>无碎片</td> <td>浪费空间</td> </tr> </tbody> </table> <blockquote> <p>持续更新中&hellip;</p> </blockquote>https://lxxyyy.cn/about/Sun, 02 Aug 2026 00:00:00 +0000https://lxxyyy.cn/about/<div class="about-card"> <img src="https://lxxyyy.cn/img/avatar.png" alt="Lxxyy"> <div class="info"> <h2>Lxxyy</h2> <div class="role">Java 后端开发者 · 2027 届应届生</div> <div class="meta"> <span class="badge">🎯 求职中</span> <span class="badge">📍 北上广深成</span> <span class="badge">📅 可立即实习</span> </div> </div> </div> <h2 id="-技术栈">🛠 技术栈 </h2><div class="skill-tags"> <span class="skill-tag">Java</span> <span class="skill-tag">Spring Boot</span> <span class="skill-tag">MyBatis-Plus</span> <span class="skill-tag">MySQL</span> <span class="skill-tag">Redis</span> <span class="skill-tag">Docker</span> <span class="skill-tag">Git</span> <span class="skill-tag">Linux</span> <span class="skill-tag">React</span> <span class="skill-tag">TypeScript</span> <span class="skill-tag">Go</span> <span class="skill-tag">Python</span> <span class="skill-tag">RAG / LLM</span> </div> <h2 id="-项目经历">📂 项目经历 </h2><div class="project-cards"> <a class="project-card" href="https://github.com/lxxyyy29/SageRAG"> <h3>🤖 SageRAG</h3> <p>企业级 Agentic RAG 平台：多通道检索 + 意图路由 + MCP 工具调用 + 全链路追踪</p> </a> <a class="project-card" href="https://lxxyyy.cn"> <h3>🌐 个人博客</h3> <p>Hugo + Stack 主题，阿里云 ECS + Nginx 独立部署</p> </a> </div> <h2 id="-联系方式">📫 联系方式 </h2><div class="contact-buttons"> <a class="contact-btn" href="mailto:hello@lxxyyy.cn">📧 邮箱</a> <a class="contact-btn mint" href="https://github.com/lxxyyy29">🐙 GitHub</a> <a class="contact-btn orange" href="https://lxxyyy.cn">🌐 博客</a> </div> <blockquote> <p>Stay hungry, stay foolish. — Steve Jobs</p> </blockquote>https://lxxyyy.cn/blog/hello-world/Sun, 02 Aug 2026 00:00:00 +0000https://lxxyyy.cn/blog/hello-world/<h2 id="欢迎来到我的博客">欢迎来到我的博客 </h2><p>这是我的第一篇博客文章。</p> <p>我搭建这个博客的目的是：</p> <ul> <li><strong>记录学习过程</strong>：把学到的技术知识整理成笔记</li> <li><strong>分享实践经验</strong>：项目踩坑、解决方案</li> <li><strong>输出倒逼输入</strong>：通过写作来检验自己是否真正理解</li> </ul> <h2 id="博客结构">博客结构 </h2><table> <thead> <tr> <th>板块</th> <th>内容</th> </tr> </thead> <tbody> <tr> <td>技术博客</td> <td>源码分析、技术教程、踩坑记录</td> </tr> <tr> <td>学习记录</td> <td>Java / Go / AI 等方向的学习笔记</td> </tr> <tr> <td>项目</td> <td>个人项目展示</td> </tr> </tbody> </table> <h2 id="代码示例">代码示例 </h2><div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span><span class="lnt">5 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-java" data-lang="java"><span class="line"><span class="cl"><span class="kd">public</span><span class="w"> </span><span class="kd">class</span> <span class="nc">HelloWorld</span><span class="w"> </span><span class="p">{</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="n">String</span><span class="o">[]</span><span class="w"> </span><span class="n">args</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="n">System</span><span class="p">.</span><span class="na">out</span><span class="p">.</span><span class="na">println</span><span class="p">(</span><span class="s">&#34;Hello, lxxyyy.cn!&#34;</span><span class="p">);</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"> </span><span class="p">}</span><span class="w"> </span></span></span><span class="line"><span class="cl"><span class="w"></span><span class="p">}</span><span class="w"> </span></span></span></code></pre></td></tr></table> </div> </div><div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="k">def</span> <span class="nf">hello</span><span class="p">():</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="s2">&#34;Hello from Python!&#34;</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="n">hello</span><span class="p">()</span> </span></span></code></pre></td></tr></table> </div> </div><p>感谢访问，欢迎常来 👋</p>https://lxxyyy.cn/projects/Sun, 02 Aug 2026 00:00:00 +0000https://lxxyyy.cn/projects/<h2 id="-项目列表">🔧 项目列表 </h2><div class="project-cards"> <a class="project-card" href="https://github.com/lxxyyy29/SageRAG"> <h3>🤖 SageRAG</h3> <p>企业级 Agentic RAG 智能问答平台：多通道并行检索 + 意图树路由 + MCP 工具调用 + 模型熔断降级 + 全链路追踪，解决大模型知识滞后与幻觉问题</p> <p>Java 17 · Spring Boot 3.5 · PostgreSQL/pgvector · Redis · RocketMQ · React 18 · shadcn/ui</p> </a> <a class="project-card" href="https://lxxyyy.cn"> <h3>🌐 个人博客</h3> <p>Hugo + Stack 主题，阿里云 ECS + Nginx 独立部署 · 卡通风贴纸设计 · 全站 HTTPS</p> </a> </div>