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<!DOCTYPE html>
<html class="theme-next mist" lang="zh-CN">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=2"/>
<meta name="theme-color" content="#222"/>
<link rel="stylesheet" href="/lib/font-awesome/css/font-awesome.min.css?v=4.6.2"/>
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<link rel="mask-icon" href="/images/logo.svg?v=7.0.0" color="#222">
<script id="hexo.configurations">
var NexT = window.NexT || {};
var CONFIG = {
root: '/',
scheme: 'Mist',
version: '7.0.0',
sidebar: {"position":"right","display":"hide","offset":12,"b2t":false,"scrollpercent":false,"onmobile":false},
fancybox: false,
fastclick: false,
lazyload: false,
tabs: true,
motion: {"enable":false,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}},
algolia: {
applicationID: '',
apiKey: '',
indexName: '',
hits: {"per_page":10},
labels: {"input_placeholder":"Search for Posts","hits_empty":"We didn't find any results for the search: ${query}","hits_stats":"${hits} results found in ${time} ms"}
}
};
</script>
<meta name="description" content="菜鸟会飞">
<meta property="og:type" content="website">
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<link rel="canonical" href="http://blog.kail.xyz/"/>
<script id="page.configurations">
CONFIG.page = {
sidebar: "",
};
</script>
<title>Mr.Kail's Blog</title>
<noscript>
<style>
.use-motion .motion-element,
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.use-motion .collection-title { opacity: initial; }
.use-motion .logo,
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top: initial;
}
.use-motion .logo-line-before i { left: initial; }
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<link itemprop="mainEntityOfPage" href="http://blog.kail.xyz/post/2019-08-23/tools/pdfcpu.html"/>
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="name" content="杨凯彬"/>
<meta itemprop="description" content="菜鸟会飞"/>
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<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/post/2019-08-23/tools/pdfcpu.html" class="post-title-link" itemprop="url">pdfcpu 操作 pdf 文件</a>
</h2>
<div class="post-meta">
<span class="post-time">
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<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">发表于</span>
<time title="创建时间：2019-08-23 00:00:00 / 修改时间：20:51:11" itemprop="dateCreated datePublished" datetime="2019-08-23T00:00:00+08:00">2019-08-23</time>
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</span>
<span class="post-meta-item-text">分类于</span>
<span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Tools/" itemprop="url" rel="index"><span itemprop="name">Tools</span></a></span>
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<div class="post-body" itemprop="articleBody">
<h2 id="常用命令"><a href="#常用命令" class="headerlink" title="常用命令"></a>常用命令</h2><ul>
<li><strong>截取指定的 Page</strong> <code>./pdfcpu trim -pages '2-4' in.pdf out.pdf</code></li>
<li><strong>删除 Page</strong> <code>./pdfcpu pages remove -pages 1 in.pdf out.pdf</code></li>
<li>优化压缩PDF <code>./pdfcpu optimize in.pdf out.pdf</code></li>
<li>合并文件： <code>./pdfcpu merge out.pdf in1.pdf in2.pdf in3.pdf</code></li>
</ul>
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<article class="post post-type-normal" itemscope itemtype="http://schema.org/Article">
<div class="post-block">
<link itemprop="mainEntityOfPage" href="http://blog.kail.xyz/post/2019-08-04/other/httpclient-4.4-cookie.html"/>
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="name" content="杨凯彬"/>
<meta itemprop="description" content="菜鸟会飞"/>
<meta itemprop="image" content="/images/favicon.png"/>
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="Mr.Kail's Blog"/>
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<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/post/2019-08-04/other/httpclient-4.4-cookie.html" class="post-title-link" itemprop="url">HttpClient 4.4 无法携带 Cookies 问题</a>
</h2>
<div class="post-meta">
<span class="post-time">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">发表于</span>
<time title="创建时间：2019-08-04 00:00:00 / 修改时间：18:20:15" itemprop="dateCreated datePublished" datetime="2019-08-04T00:00:00+08:00">2019-08-04</time>
</span>
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<span class="post-meta-item-icon">
<i class="fa fa-folder-o"></i>
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<span class="post-meta-item-text">分类于</span>
<span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Other/" itemprop="url" rel="index"><span itemprop="name">Other</span></a></span>
</span>
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<span class="post-meta-item-text">评论数：</span>
<a href="/post/2019-08-04/other/httpclient-4.4-cookie.html#comments" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="post/2019-08-04/other/httpclient-4.4-cookie.html" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>最近在使用 HttpClient 升级到 4.4+ 之后，发现原来代码无法发送 Cookies 信息了，示例代码如下：</p>
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<article class="post post-type-normal" itemscope itemtype="http://schema.org/Article">
<div class="post-block">
<link itemprop="mainEntityOfPage" href="http://blog.kail.xyz/post/2019-06-02/other/json.toJavaObject.html"/>
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="name" content="杨凯彬"/>
<meta itemprop="description" content="菜鸟会飞"/>
<meta itemprop="image" content="/images/favicon.png"/>
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="Mr.Kail's Blog"/>
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/post/2019-06-02/other/json.toJavaObject.html" class="post-title-link" itemprop="url">fastjson 慎用 JSON.toJavaObject()</a>
</h2>
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<time title="创建时间：2019-06-02 00:00:00 / 修改时间：18:24:44" itemprop="dateCreated datePublished" datetime="2019-06-02T00:00:00+08:00">2019-06-02</time>
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<i class="fa fa-folder-o"></i>
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<span class="post-meta-item-text">分类于</span>
<span itemprop="about" itemscope itemtype="http://schema.org/Thing"><a href="/categories/Other/" itemprop="url" rel="index"><span itemprop="name">Other</span></a></span>
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</header>
<div class="post-body" itemprop="articleBody">
<p>通过本文可以大致了解一下 fastjson JSON.toJavaObject() 方法的几个坑、限制 和 避免方式。</p>
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<a href="/post/2019-05-02/tools/druid-print-sql.html" class="post-title-link" itemprop="url">Druid 打印可执行 SQL</a>
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<time title="创建时间：2019-05-02 00:00:00 / 修改时间：20:42:02" itemprop="dateCreated datePublished" datetime="2019-05-02T00:00:00+08:00">2019-05-02</time>
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<p>使用 ORM 框架的时候，为了调试，常有打印 SQL 的需求，大部分打印出来的 SQL 带<code>?</code>（PreparedStatement）。这里记录一下在使用 Druid 连接池的时候，使用 Druid 自带的功能 打印 可执行的SQL。</p>
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