sanbuphy
399913d3ff
Clean up visual presentation by removing decorative icons from demo headers and info boxes across all components. Also removes now-unused CSS rules for icon styling.
530 lines
12 KiB
Vue
530 lines
12 KiB
Vue
<template>
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<div class="application-layer-demo">
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<div class="demo-header">
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<span class="title">应用层：为你服务的各种协议</span>
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<span class="subtitle">HTTP、DNS、DHCP 等协议如何工作</span>
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</div>
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<div class="protocol-gallery">
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<div
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v-for="protocol in protocols"
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:key="protocol.id"
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:class="['protocol-card', { active: activeProtocol === protocol.id }]"
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@click="activeProtocol = protocol.id"
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>
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<div class="card-icon">{{ protocol.icon }}</div>
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<div class="card-name">{{ protocol.name }}</div>
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<div class="card-desc">{{ protocol.desc }}</div>
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</div>
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</div>
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<!-- 协议详情 -->
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<div class="protocol-detail">
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<div class="detail-header">
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<span class="detail-icon">{{ currentProtocol.icon }}</span>
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<span class="detail-title">{{ currentProtocol.name }} 协议</span>
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</div>
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<div class="detail-content">
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<div class="detail-section">
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<div class="section-title">作用</div>
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<div class="section-text">{{ currentProtocol.purpose }}</div>
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</div>
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<div class="detail-section">
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<div class="section-title">工作原理</div>
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<div class="section-steps">
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<div v-for="(step, index) in currentProtocol.steps" :key="index" class="step-item">
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<span class="step-num">{{ index + 1 }}</span>
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<span class="step-text">{{ step }}</span>
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</div>
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</div>
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</div>
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<div class="detail-section">
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<div class="section-title">日常应用</div>
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<div class="app-list">
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<div v-for="(app, index) in currentProtocol.apps" :key="index" class="app-tag">
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{{ app.icon }} {{ app.name }}
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</div>
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</div>
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</div>
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</div>
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</div>
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<!-- HTTP 请求响应示例 -->
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<div v-if="activeProtocol === 'http'" class="http-example">
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<div class="example-title">HTTP 请求/响应示例</div>
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<div class="example-content">
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<div class="request-response">
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<div class="request-box">
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<div class="box-header">📤 请求 (Request)</div>
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<div class="box-body">
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<div class="line method">GET /index.html HTTP/1.1</div>
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<div class="line header">Host: www.example.com</div>
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<div class="line header">User-Agent: Mozilla/5.0</div>
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<div class="line header">Accept: text/html</div>
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</div>
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</div>
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<div class="arrow">→</div>
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<div class="response-box">
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<div class="box-header">📥 响应 (Response)</div>
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<div class="box-body">
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<div class="line status">HTTP/1.1 200 OK</div>
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<div class="line header">Content-Type: text/html</div>
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<div class="line header">Content-Length: 1234</div>
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<div class="line empty"></div>
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<div class="line body"><html>...</html></div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<!-- DNS 查询示例 -->
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<div v-if="activeProtocol === 'dns'" class="dns-example">
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<div class="example-title">DNS 查询过程</div>
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<div class="dns-flow">
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<div class="flow-step">
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<div class="step-icon">💻</div>
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<div class="step-text">用户输入 www.example.com</div>
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</div>
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<div class="flow-arrow">→</div>
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<div class="flow-step">
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<div class="step-icon">🔍</div>
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<div class="step-text">DNS 服务器查询</div>
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</div>
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<div class="flow-arrow">→</div>
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<div class="flow-step">
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<div class="step-icon">📍</div>
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<div class="step-text">返回 IP: 93.184.216.34</div>
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</div>
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</div>
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</div>
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</div>
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</template>
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<script setup>
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import { ref, computed } from 'vue'
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const activeProtocol = ref('http')
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const protocols = [
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{
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id: 'http',
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name: 'HTTP',
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icon: '🌐',
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desc: '网页浏览的基础'
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},
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{
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id: 'https',
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name: 'HTTPS',
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icon: '🔐',
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desc: '加密的安全连接'
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},
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{
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id: 'dns',
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name: 'DNS',
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icon: '🔍',
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desc: '域名解析服务'
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},
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{
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id: 'dhcp',
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name: 'DHCP',
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icon: '📡',
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desc: '自动分配 IP 地址'
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},
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{
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id: 'smtp',
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name: 'SMTP',
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icon: '📧',
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desc: '发送邮件'
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},
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{
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id: 'ftp',
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name: 'FTP',
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icon: '📁',
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desc: '文件传输'
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}
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]
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const protocolDetails = {
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http: {
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name: 'HTTP',
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icon: '🌐',
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purpose: '超文本传输协议，用于在浏览器和服务器之间传输网页数据',
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steps: [
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'浏览器发起 HTTP 请求',
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'服务器接收并处理请求',
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'服务器返回 HTTP 响应',
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'浏览器解析并显示网页'
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],
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apps: [
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{ icon: '🌍', name: '网页浏览' },
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{ icon: '📱', name: '移动应用 API' },
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{ icon: '🔌', name: 'RESTful 服务' }
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]
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},
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https: {
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name: 'HTTPS',
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icon: '🔐',
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purpose: 'HTTP Secure，在 HTTP 基础上加入 SSL/TLS 加密层',
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steps: [
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'客户端请求 HTTPS 连接',
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'服务器发送数字证书',
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'客户端验证证书并生成会话密钥',
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'使用加密通道传输数据'
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],
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apps: [
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{ icon: '🏦', name: '网上银行' },
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{ icon: '🛒', name: '在线支付' },
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{ icon: '🔑', name: '登录认证' }
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]
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},
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dns: {
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name: 'DNS',
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icon: '🔍',
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purpose: '域名系统，将人类可读的域名转换为机器可读的 IP 地址',
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steps: [
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'用户输入域名',
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'查询本地 DNS 缓存',
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'若缓存未命中，查询 DNS 服务器',
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'返回对应的 IP 地址'
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],
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apps: [
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{ icon: '🌐', name: '网址访问' },
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{ icon: '📧', name: '邮件服务器' },
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{ icon: '🎮', name: '游戏连接' }
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]
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},
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dhcp: {
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name: 'DHCP',
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icon: '📡',
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purpose: '动态主机配置协议，自动为设备分配 IP 地址和网络配置',
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steps: [
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'设备发送 DHCP Discover',
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'DHCP 服务器发送 Offer',
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'设备发送 Request',
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'服务器发送 ACK，完成分配'
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],
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apps: [
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{ icon: '📱', name: '手机连 WiFi' },
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{ icon: '💻', name: '电脑入网' },
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{ icon: '🏠', name: '家庭网络' }
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]
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},
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smtp: {
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name: 'SMTP',
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icon: '📧',
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purpose: '简单邮件传输协议，用于发送电子邮件',
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steps: [
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'邮件客户端连接 SMTP 服务器',
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'验证发件人身份',
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'传输邮件内容和附件',
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'服务器将邮件投递到收件人服务器'
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],
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apps: [
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{ icon: '📬', name: '邮件发送' },
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{ icon: '🔔', name: '邮件通知' },
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{ icon: '📋', name: '邮件列表' }
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]
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},
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ftp: {
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name: 'FTP',
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icon: '📁',
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purpose: '文件传输协议，用于在网络上进行文件传输',
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steps: [
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'客户端建立 FTP 控制连接',
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'用户认证（用户名密码）',
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'建立数据连接传输文件',
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'传输完成后关闭连接'
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],
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apps: [
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{ icon: '⬆️', name: '文件上传' },
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{ icon: '⬇️', name: '文件下载' },
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{ icon: '📂', name: '文件管理' }
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]
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}
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}
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const currentProtocol = computed(() => protocolDetails[activeProtocol.value])
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</script>
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<style scoped>
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.application-layer-demo {
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border: 1px solid var(--vp-c-divider);
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background: var(--vp-c-bg-soft);
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border-radius: 12px;
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padding: 1.5rem;
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margin: 1.5rem 0;
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}
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.demo-header {
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display: flex;
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align-items: center;
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gap: 0.5rem;
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margin-bottom: 1.5rem;
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}
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.demo-header .title { font-weight: 700; font-size: 1.1rem; }
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.demo-header .subtitle { color: var(--vp-c-text-2); font-size: 0.9rem; }
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.protocol-gallery {
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
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gap: 1rem;
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margin-bottom: 2rem;
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}
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.protocol-card {
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text-align: center;
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padding: 1rem;
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background: var(--vp-c-bg);
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border: 2px solid var(--vp-c-divider);
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border-radius: 8px;
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cursor: pointer;
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transition: all 0.3s;
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}
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.protocol-card:hover {
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border-color: var(--vp-c-brand);
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transform: translateY(-3px);
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}
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.protocol-card.active {
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border-color: var(--vp-c-brand);
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background: var(--vp-c-brand-soft);
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}
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.card-icon {
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font-size: 2rem;
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margin-bottom: 0.5rem;
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}
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.card-name {
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font-weight: 600;
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font-size: 0.95rem;
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margin-bottom: 0.35rem;
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}
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.card-desc {
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font-size: 0.8rem;
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color: var(--vp-c-text-2);
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}
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.protocol-detail {
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background: var(--vp-c-bg);
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border: 1px solid var(--vp-c-divider);
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border-radius: 8px;
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padding: 1.5rem;
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margin-bottom: 1.5rem;
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}
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.detail-header {
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display: flex;
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align-items: center;
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gap: 0.75rem;
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margin-bottom: 1.5rem;
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padding-bottom: 1rem;
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border-bottom: 1px solid var(--vp-c-divider);
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}
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.detail-icon {
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font-size: 1.5rem;
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}
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.detail-title {
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font-weight: 600;
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font-size: 1.1rem;
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color: var(--vp-c-brand);
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}
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.detail-content {
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display: flex;
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flex-direction: column;
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gap: 1.5rem;
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}
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.detail-section {
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}
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.section-title {
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font-weight: 600;
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font-size: 0.95rem;
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margin-bottom: 0.75rem;
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color: var(--vp-c-brand);
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}
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.section-text {
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font-size: 0.9rem;
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line-height: 1.6;
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color: var(--vp-c-text-1);
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}
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.section-steps {
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display: flex;
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flex-direction: column;
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gap: 0.75rem;
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}
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.step-item {
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display: flex;
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gap: 0.75rem;
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align-items: start;
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}
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.step-num {
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display: flex;
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align-items: center;
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justify-content: center;
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width: 24px;
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height: 24px;
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background: var(--vp-c-brand);
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color: white;
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border-radius: 50%;
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font-size: 0.75rem;
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font-weight: 600;
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flex-shrink: 0;
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}
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.step-text {
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font-size: 0.85rem;
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line-height: 1.5;
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padding-top: 0.15rem;
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}
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.app-list {
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display: flex;
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flex-wrap: wrap;
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gap: 0.75rem;
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}
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.app-tag {
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padding: 0.5rem 0.75rem;
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background: var(--vp-c-bg-soft);
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border: 1px solid var(--vp-c-divider);
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border-radius: 20px;
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font-size: 0.85rem;
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}
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.http-example,
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.dns-example {
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background: var(--vp-c-bg);
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border: 1px solid var(--vp-c-divider);
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border-radius: 8px;
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padding: 1.5rem;
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}
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.example-title {
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font-weight: 600;
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font-size: 1rem;
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margin-bottom: 1rem;
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color: var(--vp-c-brand);
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}
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.request-response {
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display: flex;
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align-items: stretch;
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gap: 1rem;
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}
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.request-box,
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.response-box {
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flex: 1;
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border: 2px solid var(--vp-c-divider);
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border-radius: 6px;
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overflow: hidden;
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}
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.box-header {
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background: var(--vp-c-brand);
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color: white;
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padding: 0.5rem;
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font-size: 0.85rem;
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font-weight: 600;
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text-align: center;
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}
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.box-body {
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padding: 0.75rem;
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background: var(--vp-c-bg-soft);
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font-family: 'Courier New', monospace;
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font-size: 0.75rem;
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line-height: 1.6;
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}
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.line {
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padding: 0.25rem 0;
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}
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.line.method {
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color: var(--vp-c-brand);
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font-weight: 600;
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}
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.line.status {
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color: #10b981;
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font-weight: 600;
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}
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.line.header {
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color: var(--vp-c-text-2);
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}
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.line.body {
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color: var(--vp-c-text-1);
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}
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.arrow {
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display: flex;
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align-items: center;
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font-size: 2rem;
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color: var(--vp-c-brand);
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}
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.dns-flow {
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display: flex;
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align-items: center;
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justify-content: center;
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gap: 1rem;
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flex-wrap: wrap;
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}
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.flow-step {
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flex: 1;
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min-width: 150px;
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text-align: center;
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padding: 1rem;
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background: var(--vp-c-bg-soft);
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border: 1px solid var(--vp-c-divider);
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border-radius: 6px;
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}
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.step-icon {
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font-size: 2rem;
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margin-bottom: 0.5rem;
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}
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.step-text {
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font-size: 0.85rem;
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color: var(--vp-c-text-1);
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}
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.flow-arrow {
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font-size: 1.5rem;
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color: var(--vp-c-brand);
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}
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@media (max-width: 768px) {
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.request-response {
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flex-direction: column;
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}
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.arrow {
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transform: rotate(90deg);
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}
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}
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</style>
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