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vue 实现登陆注册

2026-01-22 05:18:38VUE

Vue 登录注册功能实现

技术栈

Vue 3（Composition API）
Vue Router
Axios（HTTP请求）
Pinia/Vuex（状态管理，可选）
Element Plus/Ant Design Vue（UI组件库，可选）

项目结构

src/
├── api/                # API接口封装
│   └── auth.js
├── components/         # 公共组件
├── router/             # 路由配置
│   └── index.js
├── stores/             # 状态管理
│   └── auth.js
├── views/              # 页面组件
│   ├── Login.vue
│   └── Register.vue
└── App.vue

路由配置

在router/index.js中配置登录注册路由：

import { createRouter, createWebHistory } from 'vue-router'
import Login from '../views/Login.vue'
import Register from '../views/Register.vue'

const routes = [
  {
    path: '/login',
    name: 'Login',
    component: Login
  },
  {
    path: '/register',
    name: 'Register',
    component: Register
  }
]

const router = createRouter({
  history: createWebHistory(),
  routes
})

export default router

登录组件实现

Login.vue示例代码：

<template>
  <div class="login-container">
    <h2>用户登录</h2>
    <form @submit.prevent="handleLogin">
      <div class="form-group">
        <label>用户名</label>
        <input v-model="form.username" type="text" required>
      </div>
      <div class="form-group">
        <label>密码</label>
        <input v-model="form.password" type="password" required>
      </div>
      <button type="submit">登录</button>
    </form>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import { useRouter } from 'vue-router'
import { login } from '@/api/auth'

const router = useRouter()
const form = ref({
  username: '',
  password: ''
})

const handleLogin = async () => {
  try {
    const res = await login(form.value)
    localStorage.setItem('token', res.data.token)
    router.push('/dashboard')
  } catch (error) {
    alert(error.message)
  }
}
</script>

注册组件实现

Register.vue示例代码：

<template>
  <div class="register-container">
    <h2>用户注册</h2>
    <form @submit.prevent="handleRegister">
      <div class="form-group">
        <label>用户名</label>
        <input v-model="form.username" type="text" required>
      </div>
      <div class="form-group">
        <label>密码</label>
        <input v-model="form.password" type="password" required>
      </div>
      <div class="form-group">
        <label>确认密码</label>
        <input v-model="form.confirmPassword" type="password" required>
      </div>
      <button type="submit">注册</button>
    </form>
  </div>
</template>

<script setup>
import { ref } from 'vue'
import { useRouter } from 'vue-router'
import { register } from '@/api/auth'

const router = useRouter()
const form = ref({
  username: '',
  password: '',
  confirmPassword: ''
})

const handleRegister = async () => {
  if (form.value.password !== form.value.confirmPassword) {
    alert('两次密码输入不一致')
    return
  }

  try {
    await register(form.value)
    alert('注册成功')
    router.push('/login')
  } catch (error) {
    alert(error.message)
  }
}
</script>

API接口封装

api/auth.js示例：

import axios from 'axios'

const API_URL = 'http://your-api-url.com/auth'

export const login = async (credentials) => {
  return await axios.post(`${API_URL}/login`, credentials)
}

export const register = async (userData) => {
  return await axios.post(`${API_URL}/register`, userData)
}

状态管理（可选）

使用Pinia管理用户状态：

// stores/auth.js
import { defineStore } from 'pinia'

export const useAuthStore = defineStore('auth', {
  state: () => ({
    user: null,
    isAuthenticated: false
  }),
  actions: {
    setUser(user) {
      this.user = user
      this.isAuthenticated = true
    },
    logout() {
      this.user = null
      this.isAuthenticated = false
      localStorage.removeItem('token')
    }
  }
})

路由守卫

添加路由守卫保护需要认证的页面：

// router/index.js
router.beforeEach((to, from, next) => {
  const isAuthenticated = localStorage.getItem('token')
  if (to.name !== 'Login' && to.name !== 'Register' && !isAuthenticated) {
    next({ name: 'Login' })
  } else {
    next()
  }
})

表单验证增强

可以使用VeeValidate或Element Plus的表单验证：

<template>
  <el-form :model="form" :rules="rules" ref="formRef">
    <el-form-item label="用户名" prop="username">
      <el-input v-model="form.username"></el-input>
    </el-form-item>
    <!-- 其他表单项 -->
  </el-form>
</template>

<script setup>
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 3, max: 10, message: '长度在3到10个字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 6, max: 16, message: '长度在6到16个字符', trigger: 'blur' }
  ]
}
</script>