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class="ai-btn-item" id="go-tianli-blog">前往爱发电购买</div></div><script data-pjax src="/js/anzhiyu/ai_abstract.js"></script></div><article class="post-content" id="article-container" itemscope itemtype="https://ctext.top/43a1.html"><header><a class="post-meta-categories" href="/categories/%E6%8A%80%E6%9C%AF%E6%95%99%E7%A8%8B/" itemprop="url">技术教程</a><a href="/tags/Feign/" tabindex="-1" itemprop="url">Feign</a><h1 id="CrawlerTitle" itemprop="name headline">Feign调用者如何配置全局Header参数？</h1><span itemprop="author" itemscope itemtype="http://schema.org/Person">伴随</span><time itemprop="dateCreated datePublished" datetime="2024-08-12T11:39:34.000Z" title="发表于 2024-08-12 19:39:34">2024-08-12</time><time itemprop="dateCreated datePublished" datetime="2025-01-03T07:32:43.480Z" title="更新于 2025-01-03 15:32:43">2025-01-03</time></header><h1>作为Feign的调用者，如何配置一个全局的Header呢？</h1>
<div class="note info no-icon flat"><p>前言：</p>
<ul>
<li>因为项目遇到了这个问题，就是作为<mark class="hl-label orange">Feign</mark> 的调用者，应该如何传递认证信息，因为是新项目，所以刚开始开发没有考虑这些，之后才发现会有这个问题</li>
<li>刚开始本来准备直接给每个<mark class="hl-label orange">Feign</mark> 方法添加一个用于认证的参数，但是发现这样改动量太大了，然后就开始查找资料</li>
<li>功夫不负有心人，还真被我找到了，就是今天要介绍的<mark class="hl-label orange">Feign</mark> 中用于构建和修改HTTP请求的一个核心类<mark class="hl-label green">RequestTemplate</mark></li>
</ul>
</div>
<h2 id="在我项目中的使用">在我项目中的使用</h2>
<div class="note success no-icon flat"><ul>
<li>创建一个FeignConfig的配置类，然后把下面的信息复制到类中即可</li>
<li>因为我目前的项目中只是用于添加一个Header参数，所以用的比较简单，就只是下面的几行代码</li>
</ul>
</div>
<figure class="highlight java"><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></pre></td><td class="code"><pre><span class="line">/</span><br><span class="line"> * feign全局处理器，自动添加header参数，无需手动传递租户信息</span><br><span class="line"> *</span><br><span class="line"> * <span class="meta">@Author</span> bo.chen</span><br><span class="line"> * <span class="meta">@Date</span> <span class="number">2024</span>/<span class="number">8</span>/<span class="number">12</span></span><br><span class="line"> */</span><br><span class="line"><span class="meta">@Configuration</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">FeignConfig</span> {</span><br><span class="line"></span><br><span class="line"> <span class="meta">@Bean</span></span><br><span class="line"> <span class="keyword">public</span> RequestInterceptor <span class="title function_">requestInterceptor</span><span class="params">()</span> {</span><br><span class="line"> <span class="keyword">return</span> requestTemplate -> {</span><br><span class="line"> requestTemplate.header(<span class="string">"tenantCode"</span>, <span class="string">"DEFAULT_GROUP"</span>);</span><br><span class="line"> };</span><br><span class="line"> }</span><br><span class="line">}</span><br><span class="line"></span><br></pre></td></tr></table></figure>
<div class="note no-icon flat"><p>作为Feign服务的提供者获取这个参数就比较简单了，使用<code>SpringBoot的http</code>请求的拦截器（<code>HandlerInterceptorAdapter</code>）即可获取到这个参数</p>
</div>
<h2 id="RequestTemplate详细介绍">RequestTemplate详细介绍</h2>
<h3 id="1-路径和-URI-相关方法">1. 路径和 URI 相关方法</h3>
<ul>
<li>
<p>设置请求的 URI 路径。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.uri(<span class="string">"/new-path"</span>);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>设置请求的方法（GET、POST、PUT 等）。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.method(<span class="string">"POST"</span>);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>添加查询参数（URL 参数）。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.query(<span class="string">"key"</span>, <span class="string">"value1"</span>, <span class="string">"value2"</span>);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>设置是否对 URL 中的斜杠进行解码。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.decodeSlash(<span class="literal">false</span>);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>使用传入的参数解析模板中的占位符。占位符的形式一般是 <code>{name}</code>。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.resolve(<span class="keyword">new</span> <span class="title class_">Object</span>[]{<span class="string">"value"</span>});</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>设置请求的目标 URL，通常是基础 URL。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.target(<span class="string">"http://example.com"</span>);</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="2-请求头相关方法">2. 请求头相关方法</h3>
<ul>
<li>
<p>添加或设置请求头。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.header(<span class="string">"Authorization"</span>, <span class="string">"Bearer token"</span>);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>获取当前请求头的 Map 结构。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">Map<String, Collection<String>> headers = requestTemplate.headers();</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>设置请求的字符集。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.requestCharset(StandardCharsets.UTF_8);</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="3-请求体相关方法">3. 请求体相关方法</h3>
<ul>
<li>
<p>直接设置请求体的内容和字符集。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.body(<span class="string">"your request body"</span>.getBytes(), StandardCharsets.UTF_8);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>以字符串形式设置请求体内容。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.body(<span class="string">"your request body"</span>);</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>使用模板字符串设置请求体，可以包括占位符，在 <code>resolve</code> 时替换。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.bodyTemplate(<span class="string">"This is a body template with {param}"</span>);</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="4-请求方法相关">4. 请求方法相关</h3>
<ul>
<li>
<p>获取与当前模板关联的MethodMetadata ，其中包含有关方法的元信息。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="type">MethodMetadata</span> <span class="variable">metadata</span> <span class="operator">=</span> requestTemplate.methodMetadata();</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h3 id="5-克隆和复制">5. 克隆和复制</h3>
<ul>
<li>
<p>创建当前模板的副本。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"><span class="type">RequestTemplate</span> <span class="variable">newTemplate</span> <span class="operator">=</span> requestTemplate.clone();</span><br></pre></td></tr></table></figure>
</li>
<li>
<p>使用另一个<mark class="hl-label green">RequestTemplate</mark> 替换当前模板的内容。</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">requestTemplate.replace(newTemplate);</span><br></pre></td></tr></table></figure>
</li>
</ul>
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href="#RequestTemplate%E8%AF%A6%E7%BB%86%E4%BB%8B%E7%BB%8D"><span class="toc-number">1.2.</span> <span class="toc-text">RequestTemplate详细介绍</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#1-%E8%B7%AF%E5%BE%84%E5%92%8C-URI-%E7%9B%B8%E5%85%B3%E6%96%B9%E6%B3%95"><span class="toc-number">1.2.1.</span> <span class="toc-text">1. 路径和 URI 相关方法</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#2-%E8%AF%B7%E6%B1%82%E5%A4%B4%E7%9B%B8%E5%85%B3%E6%96%B9%E6%B3%95"><span class="toc-number">1.2.2.</span> <span class="toc-text">2. 请求头相关方法</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#3-%E8%AF%B7%E6%B1%82%E4%BD%93%E7%9B%B8%E5%85%B3%E6%96%B9%E6%B3%95"><span class="toc-number">1.2.3.</span> <span class="toc-text">3. 请求体相关方法</span></a></li><li class="toc-item toc-level-3"><a class="toc-link" href="#4-%E8%AF%B7%E6%B1%82%E6%96%B9%E6%B3%95%E7%9B%B8%E5%85%B3"><span class="toc-number">1.2.4.</span> <span 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let img = document.querySelector("#workboard .workSituationImg");
if (img != null) {
img.src = "https://up.ctext.top/happy.svg";
img.title = "下班了就该开开心心的玩耍，嘿嘿~";
img.alt = "下班了就该开开心心的玩耍，嘿嘿~";
}
currentTimeHtml = `本站居然运行了 ${dnum} 天<span id='runtime'> ${hnum} 小时 ${mnum} 分 ${snum} 秒 </span><i class='anzhiyufont anzhiyu-icon-heartbeat' style='color:red'></i>`;
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updateHtml();
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const locale = {
nick: '你的专属昵称',
nickError: '昵称太短啦！至少得有3个字符才能算数哦！',
mail: '你的电子小信箱',
mailError: '哎呀，这不是一个合格的邮箱地址哦，请再检查一遍！',
link: '你有个酷酷的网址吗？',
optional: '这个嘛，想填就填，不填也行！',
placeholder: '吐槽一下？',
sofa: '来，坐沙发上，发表你的评论吧！',
submit: '一键发送，让世界听到你的声音！',
like: '点个赞，让TA知道你的心意！',
cancelLike: '哎呀，不小心点错了，取消赞！',
reply: '回复TA，开启一场对话吧！',
cancelReply: '等等，我话还没说完，取消回复！',
comment: '来，说说你的看法，让评论区热闹起来！',
refresh: '刷新一下，看看有啥新动态！',
more: '哇塞，还有更多精彩内容等你来加载！',
preview: '先睹为快，预览一下你的大作吧！',
emoji: '来，加点表情，让你的评论更生动！',
uploadImage: '上传你的美照，让大家一起欣赏！',
seconds: '刚刚才发的，新鲜出炉！',
minutes: '几分钟前，还热乎着呢！',
hours: '几小时前，热度还在哦！',
days: '几天前，但依旧值得一看！',
now: '哇塞，刚刚发的，快抢沙发！',
uploading: '稍等片刻，你的图片正在飞奔而来！',
login: '登录一下，解锁更多功能！',
logout: '拜拜了您嘞，下次再见！',
admin: '博主大人在此，谁敢造次！',
sticky: '置顶一下，让更多人看到你的精彩内容！',
word: '字',
wordHint: '评论字数要在0到1字之间哦！\n现在你已经写了$2个字了，加油！',
anonymous: '神秘人出没，猜猜是谁？',
level0: '潜水员，深藏不露！',
level1: '冒泡小能手，偶尔露个头！',
level2: '吐槽大师，一针见血！',
level3: '活跃分子，无处不在！',
level4: '话痨达人，说个不停！',
level5: '传说级大神，膜拜一下！',
gif: '动态表情包，让你的评论更有趣！',
gifSearchPlaceholder: '快来搜索你喜欢的表情包，让评论更生动！',
profile: '看看我的个人资料，了解一下我吧！',
approved: '审核通过，可以展示啦！',
waiting: '正在等待审核，别急哦！',
spam: '垃圾内容，走开走开！',
unsticky: '换个位置看看！',
oldest: '看看最早的评论！',
latest: '看看最新的动态！',
hottest: '看看哪条评论最火！',
reactionTitle: '快来对这篇文章发表你的看法吧，让博主知道你的想法！😜'
};
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const waline = Waline.init(Object.assign({
el: '#waline-wrap',
serverURL: 'https://bc.ctext.top/',
pageview: false,
dark: 'html[data-theme="dark"]',
path: window.location.pathname,
turnstileKey: '0x4AAAAAAAexA2vW2PBFT3wv',
comment: false,
copyright: false,
reaction: true,
locale
}, null))
}
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await getCSS('https://cdn.cbd.int/@waline/client@3.1.3/dist/waline.css')
await getScript('https://cdn.cbd.int/@waline/client@3.1.3/dist/waline.js')
initWaline()
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else setTimeout(loadWaline, 0)
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window.loadOtherComment = loadWaline
}
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const changeContent = content => {
if (content === '') return content
content = content.replace(/<img.*?src="(.*?)"?[^\>]+>/ig, '[图片]') // replace image link
content = content.replace(/<a[^>]+?href=["']?([^"']+)["']?[^>]*>([^<]+)<\/a>/gi, '[链接]') // replace url
content = content.replace(/<pre><code>.*?<\/pre>/gi, '[代码]') // replace code
content = content.replace(/<[^>]+>/g,"") // remove html tag
if (content.length > 150) {
content = content.substring(0,150) + '...'
}
return content
}
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let result = ''
if (array.length) {
for (let i = 0; i < array.length; i++) {
result += '<div class=\'aside-list-item\'>'
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</div></div>`
}
} else {
result += '没有评论'
}
let $dom = document.querySelector('#card-newest-comments .aside-list')
$dom && ($dom.innerHTML= result)
window.lazyLoadInstance && window.lazyLoadInstance.update()
window.pjax && window.pjax.refresh($dom)
}
const getComment = async () => {
try {
const res = await fetch('https://bc.ctext.top/api/comment?type=recent&count=6', { method: 'GET' })
const result = await res.json()
const walineArray = result.data.map(e => {
return {
'content': changeContent(e.comment),
'avatar': e.avatar,
'nick': e.nick,
'url': e.url + '#' + e.objectId,
'date': e.time || e.insertedAt
}
})
saveToLocal.set('waline-newest-comments', JSON.stringify(walineArray), 10/(60*24))
generateHtml(walineArray)
} catch (err) {
console.error(err)
const $dom = document.querySelector('#card-newest-comments .aside-list')
$dom.textContent= "无法获取评论，请确认相关配置是否正确"
}
}
const newestCommentInit = () => {
if (document.querySelector('#card-newest-comments .aside-list')) {
const data = saveToLocal.get('waline-newest-comments')
if (data) {
generateHtml(JSON.parse(data))
} else {
getComment()
}
}
}
newestCommentInit()
document.addEventListener('pjax:complete', newestCommentInit)
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var pjax = new Pjax({
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selectors: pjaxSelectors,
cacheBust: false,
analytics: false,
scrollRestoration: false
})
document.addEventListener('pjax:send', function () {
// removeEventListener scroll
anzhiyu.removeGlobalFnEvent('pjax')
anzhiyu.removeGlobalFnEvent('themeChange')
document.getElementById('rightside').classList.remove('rightside-show')
if (window.aplayers) {
for (let i = 0; i < window.aplayers.length; i++) {
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}
}
typeof typed === 'object' && typed.destroy()
//reset readmode
const $bodyClassList = document.body.classList
$bodyClassList.contains('read-mode') && $bodyClassList.remove('read-mode')
})
document.addEventListener('pjax:complete', function () {
window.refreshFn()
document.querySelectorAll('script[data-pjax]').forEach(item => {
const newScript = document.createElement('script')
const content = item.text || item.textContent || item.innerHTML || ""
Array.from(item.attributes).forEach(attr => newScript.setAttribute(attr.name, attr.value))
newScript.appendChild(document.createTextNode(content))
item.parentNode.replaceChild(newScript, item)
})
GLOBAL_CONFIG.islazyload && window.lazyLoadInstance.update()
typeof panguInit === 'function' && panguInit()
// google analytics
typeof gtag === 'function' && gtag('config', '', {'page_path': window.location.pathname});
// baidu analytics
typeof _hmt === 'object' && _hmt.push(['_trackPageview',window.location.pathname]);
typeof loadMeting === 'function' && document.getElementsByClassName('aplayer').length && loadMeting()
// prismjs
typeof Prism === 'object' && Prism.highlightAll()
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document.addEventListener('pjax:error', e => {
if (e.request.status === 404) {
pjax.loadUrl('/404.html')
}
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