u

code/base-project/base-go/internal/app/handle/test.go

@@ -5,4 +5,5 @@ import (
 )
 
 func TestDB(c *router.Context) {
+
 }

code/base-project/base-vue/package.json

@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "@ao/ao-design": "workspace:*",
+    "@floating-ui/vue": "^1.1.9",
     "@iconify/vue": "5.0.0",
     "naive-ui": "^2.42.0",
     "vue": "^3.5.18"

code/base-project/base-vue/packages/ao-design/src/index.scss

@@ -4,5 +4,5 @@
 @use './input/index.scss' as *;
 @use './textarea/index.scss' as *;
 @use './group/index.scss' as *;
-@use "./popup/tooltip.scss" as *;
+@use "./popup/index.scss" as *;
 

code/base-project/base-vue/packages/ao-design/src/popup/index.scss

@@ -0,0 +1,10 @@
+@use '../_styles/_variables.scss' as *;
+
+$popup-prefix: #{$prefix}-popup;
+
+.#{$popup-prefix} {
+  position: absolute;
+  top: 0px;
+  left: 0px;
+  width: 100%;
+}

code/base-project/base-vue/packages/ao-design/src/popup/index.tsx

@@ -1,158 +1,15 @@
-// Tooltip.tsx
+import { defineComponent } from 'vue'
-import type { PropType } from 'vue'
+import { getPrefixCls } from '../_utils/getPrefixCls'
-import { cloneVNode, defineComponent, nextTick, onBeforeUnmount, onMounted, ref } from 'vue'
-
-interface Position {
-  top: number
-  left: number
-}
 
 export default defineComponent({
-  name: 'Tooltip',
+  name: 'Popup',
-  props: {
-    content: { type: String, required: true },
-    placement: { type: String as PropType<'top' | 'bottom' | 'left' | 'right'>, default: 'top' },
-    trigger: { type: String as PropType<'hover' | 'click'>, default: 'hover' },
-    offset: { type: Number, default: 6 },
-  },
   setup(props, { slots }) {
-    const visible = ref(false)
+    const prefixCls = getPrefixCls('popup')
-    const targetEl = ref<HTMLElement | null>(null)
-    const tooltipEl = ref<HTMLDivElement | null>(null)
 
-    const createTooltip = () => {
+    return () => (
-      const el = document.createElement('div')
+      <div class={prefixCls}>
-      el.className = `tooltip tooltip-${props.placement}`
+        {/* {slots?.default()} */}
-
+      </div>
-      const contentEl = document.createElement('div')
+    )
-      contentEl.className = 'tooltip-content'
-      contentEl.textContent = props.content
-
-      const arrowEl = document.createElement('div')
-      arrowEl.className = 'tooltip-arrow'
-
-      el.appendChild(contentEl)
-      el.appendChild(arrowEl)
-
-      // 初始状态
-      el.style.position = 'absolute'
-      el.style.top = '0'
-      el.style.left = '0'
-      el.style.opacity = '0'
-      el.style.visibility = 'hidden'
-      el.style.pointerEvents = 'none'
-
-      document.body.appendChild(el)
-      tooltipEl.value = el
-    }
-
-    const getTargetDom = (): HTMLElement | null => {
-      if (!targetEl.value)
-        return null
-      let dom = targetEl.value
-      if ('$el' in dom)
-        dom = (dom as any).$el
-      return dom instanceof HTMLElement ? dom : null
-    }
-
-    const updatePosition = () => {
-      const tooltip = tooltipEl.value
-      const target = getTargetDom()
-      if (!tooltip || !target)
-        return
-
-      const rect = target.getBoundingClientRect()
-      const tooltipRect = tooltip.getBoundingClientRect()
-      const scrollX = window.scrollX || window.pageXOffset
-      const scrollY = window.scrollY || window.pageYOffset
-
-      let top = 0
-      let left = 0
-      const offset = props.offset
-
-      switch (props.placement) {
-        case 'top':
-          top = rect.top + scrollY - tooltipRect.height - offset
-          left = rect.left + scrollX + rect.width / 2 - tooltipRect.width / 2
-          break
-        case 'bottom':
-          top = rect.bottom + scrollY + offset
-          left = rect.left + scrollX + rect.width / 2 - tooltipRect.width / 2
-          break
-        case 'left':
-          top = rect.top + scrollY + rect.height / 2 - tooltipRect.height / 2
-          left = rect.left + scrollX - tooltipRect.width - offset
-          break
-        case 'right':
-          top = rect.top + scrollY + rect.height / 2 - tooltipRect.height / 2
-          left = rect.right + scrollX + offset
-          break
-      }
-
-      tooltip.style.top = `${top}px`
-      tooltip.style.left = `${left}px`
-    }
-
-    const show = () => {
-      const tooltip = tooltipEl.value
-      if (!tooltip || !getTargetDom())
-        return
-
-      tooltip.style.visibility = 'visible'
-      tooltip.style.pointerEvents = 'auto'
-
-      nextTick(() => {
-        updatePosition()
-        tooltip.style.opacity = '1'
-        tooltip.style.transform = 'scale(1)'
-      })
-      visible.value = true
-    }
-
-    const hide = () => {
-      const tooltip = tooltipEl.value
-      if (!tooltip)
-        return
-      tooltip.style.opacity = '0'
-      tooltip.style.transform = 'scale(0.95)'
-      tooltip.style.pointerEvents = 'none'
-      tooltip.style.visibility = 'hidden'
-      visible.value = false
-    }
-
-    const toggle = () => (visible.value ? hide() : show())
-
-    onMounted(() => {
-      createTooltip()
-
-      const onUpdate = () => {
-        if (visible.value)
-          updatePosition()
-      }
-
-      window.addEventListener('scroll', onUpdate)
-      window.addEventListener('resize', onUpdate)
-
-      onBeforeUnmount(() => {
-        window.removeEventListener('scroll', onUpdate)
-        window.removeEventListener('resize', onUpdate)
-        if (tooltipEl.value && tooltipEl.value.parentNode) {
-          tooltipEl.value.parentNode.removeChild(tooltipEl.value)
-        }
-      })
-    })
-
-    return () => {
-      const child = slots.default?.()[0]
-      if (!child)
-        return null
-
-      return cloneVNode(child, {
-        ref: targetEl,
-        onMouseenter: props.trigger === 'hover' ? show : undefined,
-        onMouseleave: props.trigger === 'hover' ? hide : undefined,
-        onClick: props.trigger === 'click' ? toggle : undefined,
-      })
-    }
   },
 })

code/base-project/base-vue/packages/ao-design/src/popup/tooltip.scss

@@ -1,58 +0,0 @@
-@use '../_styles/_variables.scss' as *;
-
-.tooltip {
-  z-index: 9999;
-  padding: 6px 10px;
-  background: #fff;
-  border-radius: 4px;
-  color: #333;
-  font-size: 12px;
-  white-space: nowrap;
-  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
-
-  transition:
-    opacity 0.2s ease,
-    transform 0.2s ease;
-  pointer-events: none;
-  opacity: 0;
-  transform: scale(0.95);
-  visibility: hidden;
-
-  &.visible {
-    opacity: 1;
-    pointer-events: auto;
-  }
-
-  .tooltip-arrow {
-    position: absolute;
-    width: 8px;
-    height: 8px;
-    background: #fff;
-    transform: rotate(45deg);
-  }
-
-  &.tooltip-top .tooltip-arrow,
-  &.tooltip-bottom .tooltip-arrow {
-    left: 50%;
-    transform: translateX(-50%) rotate(45deg);
-  }
-
-  &.tooltip-left .tooltip-arrow,
-  &.tooltip-right .tooltip-arrow {
-    top: 50%;
-    transform: translateY(-50%) rotate(45deg);
-  }
-
-  &.tooltip-top .tooltip-arrow {
-    bottom: -4px;
-  }
-  &.tooltip-bottom .tooltip-arrow {
-    top: -4px;
-  }
-  &.tooltip-left .tooltip-arrow {
-    right: -4px;
-  }
-  &.tooltip-right .tooltip-arrow {
-    left: -4px;
-  }
-}

code/base-project/base-vue/packages/ao-design/src/spin/index.tsx

@@ -38,7 +38,6 @@ export default defineComponent({
                   icon={props.icon}
                   size={props.size}
                   spin
-                  rotate={props.rotate}
                 />
                 {props.tip && <span class={`${prefixCls}-tip`}>{props.tip}</span>}
               </div>

code/base-project/base-vue/pnpm-lock.yaml

@@ -11,6 +11,9 @@ importers:
       '@ao/ao-design':
         specifier: workspace:*
         version: link:packages/ao-design
+      '@floating-ui/vue':
+        specifier: ^1.1.9
+        version: 1.1.9(vue@3.5.19(typescript@5.8.3))
       '@iconify/vue':
         specifier: 5.0.0
         version: 5.0.0(vue@3.5.19(typescript@5.8.3))
@@ -510,6 +513,18 @@ packages:
     resolution: {integrity: sha512-Z5kJ+wU3oA7MMIqVR9tyZRtjYPr4OC004Q4Rw7pgOKUOKkJfZ3O24nz3WYfGRpMDNmcOi3TwQOmgm7B7Tpii0w==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
+  '@floating-ui/core@1.7.3':
+    resolution: {integrity: sha512-sGnvb5dmrJaKEZ+LDIpguvdX3bDlEllmv4/ClQ9awcmCZrlx5jQyyMWFM5kBI+EyNOCDDiKk8il0zeuX3Zlg/w==}
+
+  '@floating-ui/dom@1.7.4':
+    resolution: {integrity: sha512-OOchDgh4F2CchOX94cRVqhvy7b3AFb+/rQXyswmzmGakRfkMgoWVjfnLWkRirfLEfuD4ysVW16eXzwt3jHIzKA==}
+
+  '@floating-ui/utils@0.2.10':
+    resolution: {integrity: sha512-aGTxbpbg8/b5JfU1HXSrbH3wXZuLPJcNEcZQFMxLs3oSzgtVu6nFPkbbGGUvBcUjKV2YyB9Wxxabo+HEH9tcRQ==}
+
+  '@floating-ui/vue@1.1.9':
+    resolution: {integrity: sha512-BfNqNW6KA83Nexspgb9DZuz578R7HT8MZw1CfK9I6Ah4QReNWEJsXWHN+SdmOVLNGmTPDi+fDT535Df5PzMLbQ==}
+
   '@humanfs/core@0.19.1':
     resolution: {integrity: sha512-5DyQ4+1JEUzejeK1JGICcideyfUbGixgS9jNgex5nqkW+cY7WZhxBigmieN5Qnw9ZosSNVC9KQKyb+GUaGyKUA==}
     engines: {node: '>=18.18.0'}
@@ -2292,6 +2307,17 @@ packages:
   vscode-uri@3.1.0:
     resolution: {integrity: sha512-/BpdSx+yCQGnCvecbyXdxHDkuk55/G3xwnC0GqY4gmQ3j+A+g8kzzgB4Nk/SINjqn6+waqw3EgbVF2QKExkRxQ==}
 
+  vue-demi@0.14.10:
+    resolution: {integrity: sha512-nMZBOwuzabUO0nLgIcc6rycZEebF6eeUfaiQx9+WSk8e29IbLvPU9feI6tqW4kTo3hvoYAJkMh8n8D0fuISphg==}
+    engines: {node: '>=12'}
+    hasBin: true
+    peerDependencies:
+      '@vue/composition-api': ^1.0.0-rc.1
+      vue: ^3.0.0-0 || ^2.6.0
+    peerDependenciesMeta:
+      '@vue/composition-api':
+        optional: true
+
   vue-eslint-parser@10.2.0:
     resolution: {integrity: sha512-CydUvFOQKD928UzZhTp4pr2vWz1L+H99t7Pkln2QSPdvmURT0MoC4wUccfCnuEaihNsu9aYYyk+bep8rlfkUXw==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
@@ -2768,6 +2794,26 @@ snapshots:
       '@eslint/core': 0.15.2
       levn: 0.4.1
 
+  '@floating-ui/core@1.7.3':
+    dependencies:
+      '@floating-ui/utils': 0.2.10
+
+  '@floating-ui/dom@1.7.4':
+    dependencies:
+      '@floating-ui/core': 1.7.3
+      '@floating-ui/utils': 0.2.10
+
+  '@floating-ui/utils@0.2.10': {}
+
+  '@floating-ui/vue@1.1.9(vue@3.5.19(typescript@5.8.3))':
+    dependencies:
+      '@floating-ui/dom': 1.7.4
+      '@floating-ui/utils': 0.2.10
+      vue-demi: 0.14.10(vue@3.5.19(typescript@5.8.3))
+    transitivePeerDependencies:
+      - '@vue/composition-api'
+      - vue
+
   '@humanfs/core@0.19.1': {}
 
   '@humanfs/node@0.16.6':
@@ -4751,6 +4797,10 @@ snapshots:
 
   vscode-uri@3.1.0: {}
 
+  vue-demi@0.14.10(vue@3.5.19(typescript@5.8.3)):
+    dependencies:
+      vue: 3.5.19(typescript@5.8.3)
+
   vue-eslint-parser@10.2.0(eslint@9.34.0):
     dependencies:
       debug: 4.4.1

code/base-project/base-vue/src/App.vue

@@ -1,28 +1,65 @@
-<script setup lang="ts">
+<script setup>
-function setDark() {
+import { arrow, offset, useFloating } from '@floating-ui/vue'
-  document.documentElement.setAttribute('theme-mode', 'dark')
+import { ref } from 'vue'
-  document.body.style.backgroundColor = '#242424'
-}
 
-function setLight() {
+const reference = ref(null) // 按钮
-  document.documentElement.setAttribute('theme-mode', 'light')
+const floating = ref(null) // tooltip
-  document.body.style.backgroundColor = '#ffffff'
+const floatingArrow = ref(null)
-}
+
+// 使用 useFloating 计算浮动位置
+const { floatingStyles, middlewareData } = useFloating(reference, floating, {
+  middleware: [offset(8), arrow({ element: floatingArrow })],
+  placement: 'bottom',
+})
 </script>
 
 <template>
-  <div style="height: 100vh;width: 100%;display: flex;align-items: center;flex-direction: column;justify-content: center;gap:16px">
+  <div style="padding: 100px;">
-    <div style="display: flex; gap: 8px;">
+    <APopup />
-      <AButton status="primary" size="medium" @click="setDark">
+    <button
-        黑色主题
+      ref="reference" style="width: 200px;"
-      </AButton>
+    >
+      Button
+    </button>
 
-      <AButton status="primary" size="medium" @click="setLight">
+    <div ref="floating" class="floating" :style="floatingStyles">
-        白色主题
+      Tooltip
-      </AButton>
+      <div
+        ref="floatingArrow"
+        class="arrow"
+        :style="{
+          position: 'absolute',
+          left:
+            middlewareData.arrow?.x != null
+              ? `${middlewareData.arrow.x}px`
+              : '',
+          top:
+            middlewareData.arrow?.y != null
+              ? `${middlewareData.arrow.y}px`
+              : '',
+        }"
+      />
     </div>
-    <APopup content="123456" trigger="hover">
-      <AButton>测试</AButton>
-    </APopup>
   </div>
 </template>
+
+<style scoped>
+/* tooltip 样式 */
+.floating {
+  padding: 6px 12px;
+  background-color: #fff;
+  color: #333;
+  border-radius: 2px;
+  font-size: 12px;
+  white-space: nowrap;
+  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1); /* 添加阴影 */
+}
+/* 箭头 */
+.arrow {
+  position: absolute;
+  width: 8px;
+  height: 8px;
+  background-color: #fff;
+  transform: rotate(45deg);
+}
+</style>

code/base-project/base-vue/test.html

@@ -1,115 +1,105 @@
-<!doctype html>
+<!DOCTYPE html>
 <html lang="en">
-  <head>
+<head>
-    <meta charset="UTF-8" />
+<meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>按钮示例</title>
+<title>Popup with Arrow</title>
-    <!-- 这里使用 Font Awesome CDN，你可以换成自己的图标库 -->
+<style>
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css" />
+  body {
-    <style>
+    font-family: Arial, sans-serif;
+    padding: 50px;
+  }
+
+  /* 触发按钮 */
   .btn {
-        display: inline-flex; /* 内部水平排列 */
+    padding: 10px 20px;
-        align-items: center; /* 垂直居中 */
+    background-color: #3498db;
-        justify-content: center; /* 水平居中 */
+    color: white;
-        gap: 4px; /* 图标和文字间距 */
+    border: none;
-        padding: 8px 16px;
-        border: 1px solid #ccc;
-        border-radius: 4px;
-        background-color: #f4f5f5;
     cursor: pointer;
-        font-size: 14px;
-        color: #333;
-        font-family: sans-serif;
-      }
-
-      .btn:hover {
-        background-color: #eaeaea;
-      }
-
-      .btn:active {
-        background-color: #dcdcdc;
-      }
-
-      .btn-icon {
-        display: inline-flex;
-        align-items: center;
-        justify-content: center;
-        font-size: 16px; /* 控制图标大小 */
-      }
-
-      .btn-text {
-        display: inline-block;
-      }
-    </style>
-  </head>
-  <body>
-    <!-- 图标在左 -->
-    <button class="btn">
-      <i class="fas fa-check btn-icon"></i>
-      <span class="btn-text">按钮文字</span>
-    </button>
-
-    <!-- 图标在右 -->
-    <button class="btn">
-      <span class="btn-text">按钮文字</span>
-      <i class="fas fa-arrow-right btn-icon"></i>
-    </button>
-  </body>
-</html>
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>按钮示例</title>
-    <!-- 这里使用 Font Awesome CDN，你可以换成自己的图标库 -->
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css" />
-    <style>
-      .btn {
-        display: inline-flex; /* 内部水平排列 */
-        align-items: center; /* 垂直居中 */
-        justify-content: center; /* 水平居中 */
-        gap: 4px; /* 图标和文字间距 */
-        padding: 8px 16px;
-        border: 1px solid #ccc;
     border-radius: 4px;
-        background-color: #f4f5f5;
-        cursor: pointer;
-        font-size: 14px;
-        color: #333;
   }
 
-      .btn:hover {
+  /* Popup 基础样式 */
-        background-color: #eaeaea;
+  .popup {
+    position: absolute;
+    padding: 10px 15px;
+    background-color: #333;
+    color: #fff;
+    border-radius: 6px;
+    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
+    display: none;
+    z-index: 100;
+    max-width: 200px;
+    text-align: center;
   }
 
-      .btn:active {
+  /* 箭头公共样式 */
-        background-color: #dcdcdc;
+  .popup::after {
+    content: '';
+    position: absolute;
+    width: 0;
+    height: 0;
+    border-style: solid;
   }
 
-      .btn-icon {
+  /* 箭头方向 */
-        display: inline-flex;
+  .popup.top::after {
-        align-items: center;
+    bottom: -8px;
-        justify-content: center;
+    left: 50%;
-        font-size: 16px; /* 控制图标大小 */
+    transform: translateX(-50%);
+    border-width: 8px 8px 0 8px;
+    border-color: #333 transparent transparent transparent;
   }
 
-      .btn-text {
+  .popup.bottom::after {
-        display: inline-block;
+    top: -8px;
+    left: 50%;
+    transform: translateX(-50%);
+    border-width: 0 8px 8px 8px;
+    border-color: transparent transparent #333 transparent;
   }
-    </style>
-  </head>
-  <body>
-    <!-- 图标在左 -->
-    <button class="btn">
-      <i class="fas fa-check btn-icon"></i>
-      <span class="btn-text">按钮文字</span>
-    </button>
 
-    <!-- 图标在右 -->
+  .popup.left::after {
-    <button class="btn">
+    top: 50%;
-      <span class="btn-text">按钮文字</span>
+    right: -8px;
-      <i class="fas fa-arrow-right btn-icon"></i>
+    transform: translateY(-50%);
-    </button>
+    border-width: 8px 0 8px 8px;
-  </body>
+    border-color: transparent transparent transparent #333;
+  }
+
+  .popup.right::after {
+    top: 50%;
+    left: -8px;
+    transform: translateY(-50%);
+    border-width: 8px 8px 8px 0;
+    border-color: transparent #333 transparent transparent;
+  }
+</style>
+</head>
+<body>
+
+<button class="btn" id="btn">Hover me</button>
+
+<div class="popup top" id="popup">这是一个带箭头的 Popup!</div>
+
+<script>
+  const btn = document.getElementById('btn');
+  const popup = document.getElementById('popup');
+
+  // 鼠标悬停显示
+  btn.addEventListener('mouseenter', () => {
+    const rect = btn.getBoundingClientRect();
+    popup.style.display = 'block';
+    // 设置 Popup 位置（示例：顶部）
+    popup.style.left = rect.left + rect.width / 2 - popup.offsetWidth / 2 + 'px';
+    popup.style.top = rect.top - popup.offsetHeight - 10 + 'px';
+  });
+
+  btn.addEventListener('mouseleave', () => {
+    popup.style.display = 'none';
+  });
+</script>
+
+</body>
 </html>

code/email/Email-Netty/.gitignore

@@ -0,0 +1,38 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

code/email/Email-Netty/.idea/.gitignore

@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Environment-dependent path to Maven home directory
+/mavenHomeManager.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

code/email/Email-Netty/.idea/encodings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

code/email/Email-Netty/.idea/misc.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

code/email/Email-Netty/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
+  </component>
+</project>

code/email/Email-Netty/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.email</groupId>
+    <artifactId>Email-Netty</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-all</artifactId>
+            <version>4.1.106.Final</version>
+        </dependency>
+    </dependencies>
+
+</project>

code/email/Email-Netty/src/main/java/com/email/ImapClientHandler.java

@@ -0,0 +1,144 @@
+package com.email;
+
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.SimpleChannelInboundHandler;
+
+import java.io.FileOutputStream;
+import java.io.OutputStream;
+import java.util.Base64;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class ImapClientHandler extends SimpleChannelInboundHandler<String> {
+
+    private final String username;
+    private final String password;
+
+    private enum State { LOGIN, SELECT, FETCH, DONE }
+    private State state = State.LOGIN;
+
+    private int tagCounter = 1;
+    private StringBuilder headerBuffer = new StringBuilder();
+    private StringBuilder bodyBuffer = new StringBuilder();
+    private boolean inHeader = true;
+    private String boundary = null;
+
+    private boolean inAttachment = false;
+    private String currentFilename = null;
+
+    public ImapClientHandler(String username, String password) {
+        this.username = username;
+        this.password = password;
+    }
+
+    private String nextTag() {
+        return "a" + (tagCounter++);
+    }
+
+    @Override
+    public void channelActive(ChannelHandlerContext ctx) {
+        System.out.println("Connected to IMAP server...");
+    }
+
+    @Override
+    protected void channelRead0(ChannelHandlerContext ctx, String line) {
+        line = line.trim();
+        if (line.isEmpty()) return;
+
+        System.out.println("S: " + line);
+
+        switch (state) {
+            case LOGIN:
+                if (line.startsWith("* OK")) {
+                    ctx.writeAndFlush(nextTag() + " LOGIN " + username + " " + password + "\r\n");
+                } else if (line.contains("OK LOGIN")) {
+                    state = State.SELECT;
+                    ctx.writeAndFlush(nextTag() + " SELECT INBOX\r\n");
+                }
+                break;
+
+            case SELECT:
+                if (line.contains("OK [READ-WRITE]") || line.contains("OK [READ-ONLY]")) {
+                    state = State.FETCH;
+                    ctx.writeAndFlush(nextTag() + " FETCH 1:* (BODY.PEEK[])\r\n");
+                }
+                break;
+
+            case FETCH:
+                if (line.contains("OK FETCH completed")) {
+                    state = State.DONE;
+                    System.out.println("All emails fetched!");
+                    ctx.close();
+                } else if (line.startsWith("*") && line.contains("FETCH")) {
+                    // 新邮件开始
+                    headerBuffer.setLength(0);
+                    bodyBuffer.setLength(0);
+                    inHeader = true;
+                    inAttachment = false;
+                    currentFilename = null;
+                    boundary = null;
+                } else {
+                    if (inHeader) {
+                        headerBuffer.append(line).append("\r\n");
+                        if (line.isEmpty()) { // header结束
+                            inHeader = false;
+
+                            // 解析邮件标题
+                            Matcher subjectMatcher = Pattern.compile("(?i)^Subject: (.+)$", Pattern.MULTILINE).matcher(headerBuffer);
+                            if (subjectMatcher.find()) {
+                                String subject = subjectMatcher.group(1).trim();
+                                System.out.println("Email Subject: " + subject);
+                            }
+
+                            // 解析 boundary
+                            Matcher m = Pattern.compile("boundary=\"([^\"]+)\"").matcher(headerBuffer);
+                            if (m.find()) boundary = m.group(1);
+                        }
+                    } else {
+                        // body部分
+                        if (boundary != null && line.contains(boundary)) {
+                            // attachment结束
+                            if (inAttachment && currentFilename != null) {
+                                saveAttachment(bodyBuffer.toString(), currentFilename);
+                                System.out.println("Attachment saved: " + currentFilename);
+                                bodyBuffer.setLength(0);
+                                inAttachment = false;
+                                currentFilename = null;
+                            }
+                        } else {
+                            // 检测附件开始
+                            Matcher m = Pattern.compile("Content-Disposition: attachment; filename=\"([^\"]+)\"").matcher(line);
+                            if (m.find()) {
+                                currentFilename = m.group(1);
+                                inAttachment = true;
+                                bodyBuffer.setLength(0);
+                            } else if (inAttachment) {
+                                bodyBuffer.append(line);
+                            }
+                        }
+                    }
+                }
+                break;
+
+            case DONE:
+                break;
+        }
+    }
+
+    private void saveAttachment(String base64Data, String filename) {
+        try {
+            byte[] data = Base64.getDecoder().decode(base64Data);
+            try (OutputStream os = new FileOutputStream(filename)) {
+                os.write(data);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
+        cause.printStackTrace();
+        ctx.close();
+    }
+}

code/email/Email-Netty/src/main/java/com/email/NettyImapClient.java

@@ -0,0 +1,61 @@
+package com.email;
+
+import io.netty.bootstrap.Bootstrap;
+import io.netty.channel.*;
+import io.netty.channel.nio.NioEventLoopGroup;
+import io.netty.channel.socket.SocketChannel;
+import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.handler.codec.LineBasedFrameDecoder;
+import io.netty.handler.codec.string.StringDecoder;
+import io.netty.handler.ssl.SslContext;
+import io.netty.handler.ssl.SslContextBuilder;
+
+public class NettyImapClient {
+
+    private final String host;
+    private final int port;
+    private final String username;
+    private final String password;
+
+    public NettyImapClient(String host, int port, String username, String password) {
+        this.host = host;
+        this.port = port;
+        this.username = username;
+        this.password = password;
+    }
+
+    public void start() throws Exception {
+        EventLoopGroup group = new NioEventLoopGroup();
+        SslContext sslCtx = SslContextBuilder.forClient().build();
+
+        try {
+            Bootstrap b = new Bootstrap();
+            b.group(group)
+                    .channel(NioSocketChannel.class)
+                    .handler(new ChannelInitializer<SocketChannel>() {
+                        @Override
+                        protected void initChannel(SocketChannel ch) {
+                            ChannelPipeline p = ch.pipeline();
+                            p.addLast(sslCtx.newHandler(ch.alloc(), host, port));
+                            p.addLast(new LineBasedFrameDecoder(8192));
+                            p.addLast(new StringDecoder());
+                            p.addLast(new ImapClientHandler(username, password));
+                        }
+                    });
+
+            ChannelFuture f = b.connect(host, port).sync();
+            f.channel().closeFuture().sync();
+        } finally {
+            group.shutdownGracefully();
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        String host = "imap.qq.com"; // IMAP服务器
+        int port = 993;              // SSL端口
+        String user = "717406575@qq.com";
+        String pass = "dhqesrwzgblrbcac"; // 授权码
+
+        new NettyImapClient(host, port, user, pass).start();
+    }
+}