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# 9.8 登录流程
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:::tip 概述
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本节说明前端登录流程的实现,包括登录表单提交、Token 存储、路由守卫和登出处理。
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登录页提供四种表单:账号密码、手机验证码、扫码登录、注册。以账密登录为主线:验证码获取 → 登录换取双令牌 → 落 storage → 跳首页(守卫接管拉信息、生成路由)。
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:::
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## 前端登录流程
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## 页面组成
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```text
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1. 用户输入用户名、密码、验证码
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2. 调用 POST /api/login 接口
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3. 成功 → 存储 Token 到 localStorage
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4. 路由守卫检测到 Token → 获取用户信息
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5. 生成动态路由 → 跳转首页
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views/login/
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├── index.vue 登录容器(表单切换)
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├── LoginForm.vue 账号密码 + 图形验证码
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├── PhoneForm.vue 手机验证码
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├── QrcodeForm.vue 扫码登录
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└── RegisterForm.vue 注册
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```
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## 登录页面代码
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## 账密登录时序
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```vue
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<!-- src/views/login/index.vue -->
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<template>
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<el-form :model="loginForm" @submit.prevent="handleLogin">
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<el-form-item>
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<el-input v-model="loginForm.username" placeholder="用户名" />
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</el-form-item>
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<el-form-item>
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<el-input v-model="loginForm.password" type="password" placeholder="密码" />
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</el-form-item>
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<el-form-item>
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<el-input v-model="loginForm.captchaCode" placeholder="验证码" />
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<img :src="captchaImage" @click="refreshCaptcha" />
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</el-form-item>
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<el-button type="primary" @click="handleLogin">登录</el-button>
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</el-form>
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</template>
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<script setup>
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import { useUserStore } from '@/store/modules/user';
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import { getCaptcha } from '@/api/common/user';
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const userStore = useUserStore();
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const loginForm = ref({ username: '', password: '', captchaCode: '', captchaKey: '' });
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const captchaImage = ref('');
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// 获取验证码
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const refreshCaptcha = async () => {
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const res = await getCaptcha();
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loginForm.value.captchaKey = res.key;
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captchaImage.value = res.image;
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};
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// 登录
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const handleLogin = async () => {
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await userStore.login(loginForm.value);
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router.push('/');
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};
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onMounted(() => refreshCaptcha());
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</script>
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```text
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① 进入登录页 → /api/captcha 取 key + captcha 图片
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② 用户填账号/密码/验证码
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③ POST /api/login { username, password, key, code }
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④ 成功:data.access_token / data.refresh_token 写 storage + user store
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⑤ 跳转首页 → 路由守卫发现无动态路由 → GetInfo + generateRoutes
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⑥ 进入布局页
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```
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失败:拦截器弹 msg(验证码错误/密码错误/租户禁用等后端业务消息)。字段名以 `internal/model/dto/auth.go`(LoginReq/LoginRes)为准。
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## Token 存储
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```typescript
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// 登录成功后存储
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storage.set(ACCESS_TOKEN, data.access_token, 7 * 24 * 60 * 60 * 1000); // 7天过期
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- storage 键:`ACCESS_TOKEN`(mutation-types 常量)
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- 请求拦截器自动附加 `Authorization: Bearer`
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- 支持 URL `?token=` 直接落 storage(单点登录跳转集成)
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// 请求拦截器自动携带
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config.headers['Authorization'] = `Bearer ${token}`;
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## 验证码交互
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// 响应拦截器检测 401
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if (response.data.code === 401) {
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router.push('/login');
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}
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```
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- 图片点击刷新(uuid 换新,一码一用)
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- 开发环境可配万能码(captcha.bypassCode,生产禁止非空)
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## 登出
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登出调 `/api/logout`(后端拉黑双令牌),前端清 storage 与 store 回登录页。
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## 四种表单的后端支撑
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| 表单 | 说明 |
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|---|---|
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| 账密 | 标准登录(本页主线) |
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| 手机 | 短信验证码通道(依赖短信能力,任务包内有 SendSms 示例) |
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| 扫码 | 扫码确认通道 |
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| 注册 | 开放注册场景(注册即建用户) |
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## 相关
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- [5.2 认证与授权流程](/zh/core/auth-flow.html)
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- [8.7 Token 使用说明](/zh/api-spec/token.html)
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