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<!DOCTYPE html>
<html lang="en" data-default-color-scheme=auto>
<head>
<meta charset="UTF-8">
<link rel="apple-touch-icon" sizes="76x76" href="/img/jiahe.png">
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<body>
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<div class="header-inner" style="height: 100vh;">
<nav id="navbar" class="navbar fixed-top navbar-expand-lg navbar-dark scrolling-navbar">
<div class="container">
<a class="navbar-brand" href="/">
<strong>J1aHe</strong>
</a>
<button id="navbar-toggler-btn" class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<div class="animated-icon"><span></span><span></span><span></span></div>
</button>
<!-- Collapsible content -->
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<ul class="navbar-nav ml-auto text-center">
<li class="nav-item">
<a class="nav-link" href="/archives/" target="_self">
<i class="iconfont icon-archive-fill"></i>
<span>Archives</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/categories/" target="_self">
<i class="iconfont icon-category-fill"></i>
<span>Categories</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/tags/" target="_self">
<i class="iconfont icon-tags-fill"></i>
<span>Tags</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/links/" target="_self">
<i class="iconfont icon-link-fill"></i>
<span>Links</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/about/" target="_self">
<i class="iconfont icon-user-fill"></i>
<span>About</span>
</a>
</li>
<li class="nav-item" id="search-btn">
<a class="nav-link" target="_self" href="javascript:;" data-toggle="modal" data-target="#modalSearch" aria-label="Search">
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<a class="nav-link" target="_self" href="javascript:;" aria-label="Color Toggle">
<i class="iconfont icon-dark" id="color-toggle-icon"></i>
</a>
</li>
</ul>
</div>
</div>
</nav>
<div id="banner" class="banner" parallax=true
style="background: url('/img/default.png') no-repeat center center; background-size: cover;">
<div class="full-bg-img">
<div class="mask flex-center" style="background-color: rgba(0, 0, 0, 0.3)">
<div class="banner-text text-center fade-in-up">
<div class="h2">
<span id="subtitle" data-typed-text="J1aHe's Blog"></span>
</div>
</div>
<div class="scroll-down-bar">
<i class="iconfont icon-arrowdown"></i>
</div>
</div>
</div>
</div>
</div>
</header>
<main>
<div class="container nopadding-x-md">
<div id="board"
style="margin-top: 0">
<div class="container">
<div class="row">
<div class="col-12 col-md-10 m-auto">
<div class="row mx-auto index-card">
<article class="col-12 col-md-12 mx-auto index-info">
<h2 class="index-header">
<a href="/2024/11/25/%E6%8B%A6%E6%88%AA%E5%99%A8%E5%92%8C%E8%BF%87%E6%BB%A4%E5%99%A8/" target="_self">
拦截器和过滤器
</a>
</h2>
<a class="index-excerpt index-excerpt__noimg" href="/2024/11/25/%E6%8B%A6%E6%88%AA%E5%99%A8%E5%92%8C%E8%BF%87%E6%BB%A4%E5%99%A8/" target="_self">
<div>
过滤器和拦截器 Filter（过滤器）过滤器的配置比较简单，直接实现Filter接口即可，也可以通过@WebFilter注解实现对特定URL拦截。 可以看到Filter 接口中定义了三个方法。 init() ：该方法在容器启动初始化过滤器时被调用，它在 Filter 的整个生命周期只会被调用一次。注意：这个方法必须执行成功，否则过滤器会不起作用。 doFilter()：容器中的每一次请求都会调
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2024-11-25 10:26" pubdate>
2024-11-25
</time>
</div>
<div class="post-meta mr-3 d-flex align-items-center">
<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/java/" class="category-chain-item">java</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/java/">#java</a>
</div>
</div>
</article>
</div>
<div class="row mx-auto index-card">
<article class="col-12 col-md-12 mx-auto index-info">
<h2 class="index-header">
<a href="/2024/11/14/Vue3-Day3/" target="_self">
Vue3-Day3
</a>
</h2>
<a class="index-excerpt index-excerpt__noimg" href="/2024/11/14/Vue3-Day3/" target="_self">
<div>
Vue3-Day3
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2024-11-14 14:16" pubdate>
2024-11-14
</time>
</div>
<div class="post-meta mr-3 d-flex align-items-center">
<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/Vue3/" class="category-chain-item">Vue3</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/Vue3/">#Vue3</a>
</div>
</div>
</article>
</div>
<div class="row mx-auto index-card">
<article class="col-12 col-md-12 mx-auto index-info">
<h2 class="index-header">
<a href="/2024/11/14/Vue3-Day2/" target="_self">
Vue3-Day2
</a>
</h2>
<a class="index-excerpt index-excerpt__noimg" href="/2024/11/14/Vue3-Day2/" target="_self">
<div>
Vue3-Day2响应式数据基础类型的响应式数据（ref） 在setup中，使用ref函数设置响应式数据。 数据会变成对象，在之后的使用中，需要.value去获取或修改值 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647<template> <div cl
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2024-11-14 10:54" pubdate>
2024-11-14
</time>
</div>
<div class="post-meta mr-3 d-flex align-items-center">
<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/Vue3/" class="category-chain-item">Vue3</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/Vue3/">#Vue3</a>
</div>
</div>
</article>
</div>
<div class="row mx-auto index-card">
<article class="col-12 col-md-12 mx-auto index-info">
<h2 class="index-header">
<a href="/2024/11/13/Vue3-Day1/" target="_self">
Vue3-Day1
</a>
</h2>
<a class="index-excerpt index-excerpt__noimg" href="/2024/11/13/Vue3-Day1/" target="_self">
<div>
Vue3-Day1先安装NVM使用VSCode需要安装的插件Vue-Official 之后使用NVM命令安装NPM1nvm install latest 之后就可以基于 Vite 的构建项目，并进行设置1npm create vue@latest 会看到如下配置 12345678910111213✔ Project name: … <your-project-name>✔ Ad
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2024-11-13 17:35" pubdate>
2024-11-13
</time>
</div>
<div class="post-meta mr-3 d-flex align-items-center">
<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/Vue3/" class="category-chain-item">Vue3</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/Vue3/">#Vue3</a>
</div>
</div>
</article>
</div>
<div class="row mx-auto index-card">
<article class="col-12 col-md-12 mx-auto index-info">
<h2 class="index-header">
<a href="/2024/11/07/Gitpod%E7%BD%91%E9%A1%B5%E7%AB%AF%E4%BD%BF%E7%94%A8/" target="_self">
Gitpod网页端使用
</a>
</h2>
<a class="index-excerpt index-excerpt__noimg" href="/2024/11/07/Gitpod%E7%BD%91%E9%A1%B5%E7%AB%AF%E4%BD%BF%E7%94%A8/" target="_self">
<div>
Gitpod网页端使用输入网址https://gitpod.io/#github.com/J1aHe/spark-yun #后面代表你要打开的github项目
</div>
</a>
<div class="index-btm post-metas">
<div class="post-meta mr-3">
<i class="iconfont icon-date"></i>
<time datetime="2024-11-07 15:00" pubdate>
2024-11-07
</time>
</div>
<div class="post-meta mr-3 d-flex align-items-center">
<i class="iconfont icon-category"></i>
<span class="category-chains">
<span class="category-chain">
<a href="/categories/Gitpod/" class="category-chain-item">Gitpod</a>
</span>
</span>
</div>
<div class="post-meta">
<i class="iconfont icon-tags"></i>
<a href="/tags/Gitpod/">#Gitpod</a>
</div>
</div>
</article>
</div>
<div class="row mx-auto index-card">
<article class="col-12 col-md-12 mx-auto index-info">
<h2 class="index-header">
<a href="/2024/11/07/Git-%E7%BB%99%E5%8D%95%E4%B8%AA%E9%A1%B9%E7%9B%AE%E9%85%8D%E7%BD%AEname%E5%92%8Cemail/" target="_self">
Git 给单个项目配置name和email
</a>
</h2>
<a class="index-excerpt index-excerpt__noimg" href="/2024/11/07/Git-%E7%BB%99%E5%8D%95%E4%B8%AA%E9%A1%B9%E7%9B%AE%E9%85%8D%E7%BD%AEname%E5%92%8Cemail/" target="_self">
<div>
Git 给单个项目配置name和email在每个项目的主目录下一个隐藏文件夹.git.git文件夹中有一个config文件可以发现以下内容，如果没有，则说明当前项目未配置，使用的是global配置123[user] name = J1aHe email = [email protected] 也可使用命令修改1234567# 修改当前项目用户名git config user.name
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2024-11-07
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<a href="/tags/Git/">#Git</a>
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<a href="/2024/11/04/Vercel%E5%9F%9F%E5%90%8D%E9%85%8D%E7%BD%AE/" target="_self">
Vercel域名配置
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<a class="index-excerpt index-excerpt__noimg" href="/2024/11/04/Vercel%E5%9F%9F%E5%90%8D%E9%85%8D%E7%BD%AE/" target="_self">
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Vercel域名配置大致流程 看下4的内容 域名配置 确定即可 这样即是配置成功 域名访问
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2024-11-04
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<a href="/2024/10/28/Hexo%E8%BF%81%E7%A7%BB/" target="_self">
Hexo迁移
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Hexo迁移注意！！！仅本人方法，不代表其他任何人 1.新电脑上安装hexo1npm install hexo-cli -g 2.在想要的地方生成文件夹1hexo init blog 3.然后将之前旧文件夹的内容，解压到新的blog文件夹 因为这次刚好想换个主题，所以我只把source文件夹替换掉了 4.最后修改_config.yml的配置 注意最后deploy的配置 1234deploy
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2024-10-28
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<a href="/tags/%E8%BF%81%E7%A7%BB/">#迁移</a>
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Java全局异常处理
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<a class="index-excerpt index-excerpt__noimg" href="/2024/10/28/Java%E5%85%A8%E5%B1%80%E5%BC%82%E5%B8%B8%E5%A4%84%E7%90%86/" target="_self">
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Java全局异常处理 全局异常处理是一种将异常处理代码从业务逻辑中分离出来的技术。 在Java中，全局异常处理使用@ControllerAdvice注解定义一个全局的异常处理类。 在该类中，使用@ExceptionHandler注解捕获异常并进行处理。 使用全局异常处理技术，可以统一处理异常，提高代码的复用性，降低代码的冗余度。 步骤1. 定义自定义异常类12345678910111213141
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Mysql数据复制
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Mysql数据复制 将一张表的数据复制（not迁移/导入）到另外一张表 方法一 拷贝表1的全部数据到表2 1INSERT INTO table2 SELECT * FROM table1 方法二 创建表2， 同时拷贝表1的数据和结构到表2 1CREATE TABLE table3 SELECT * FROM table1 方法三 创建表2，只拷贝表1的结构到表2，不拷贝数据
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