实现登陆页

1. 准备模版

<script setup>

</script>

<template>
  <div>
    <header class="login-header">
      <div class="container m-top-20">
        <h1 class="logo">
          <RouterLink to="/">小兔鲜</RouterLink>
        </h1>
        <RouterLink class="entry" to="/">
          进入网站首页
          <i class="iconfont icon-angle-right"></i>
          <i class="iconfont icon-angle-right"></i>
        </RouterLink>
      </div>
    </header>
    <section class="login-section">
      <div class="wrapper">
        <nav>
          <a href="javascript:;">账户登录</a>
        </nav>
        <div class="account-box">
          <div class="form">
            <el-form label-position="right" label-width="60px"
              status-icon>
              <el-form-item  label="账户">
                <el-input/>
              </el-form-item>
              <el-form-item label="密码">
                <el-input/>
              </el-form-item>
              <el-form-item label-width="22px">
                <el-checkbox  size="large">
                  我已同意隐私条款和服务条款
                </el-checkbox>
              </el-form-item>
              <el-button size="large" class="subBtn">点击登录</el-button>
            </el-form>
          </div>
        </div>
      </div>
    </section>

    <footer class="login-footer">
      <div class="container">
        <p>
          <a href="javascript:;">关于我们</a>
          <a href="javascript:;">帮助中心</a>
          <a href="javascript:;">售后服务</a>
          <a href="javascript:;">配送与验收</a>
          <a href="javascript:;">商务合作</a>
          <a href="javascript:;">搜索推荐</a>
          <a href="javascript:;">友情链接</a>
        </p>
        <p>CopyRight © 小兔鲜儿</p>
      </div>
    </footer>
  </div>
</template>

<style scoped lang='scss'>
.login-header {
  background: #fff;
  border-bottom: 1px solid #e4e4e4;

  .container {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
  }

  .logo {
    width: 200px;

    a {
      display: block;
      height: 132px;
      width: 100%;
      text-indent: -9999px;
      background: url("@/assets/images/logo.png") no-repeat center 18px / contain;
    }
  }

  .sub {
    flex: 1;
    font-size: 24px;
    font-weight: normal;
    margin-bottom: 38px;
    margin-left: 20px;
    color: #666;
  }

  .entry {
    width: 120px;
    margin-bottom: 38px;
    font-size: 16px;

    i {
      font-size: 14px;
      color: $xtxColor;
      letter-spacing: -5px;
    }
  }
}

.login-section {
  background: url('@/assets/images/login-bg.png') no-repeat center / cover;
  height: 488px;
  position: relative;

  .wrapper {
    width: 380px;
    background: #fff;
    position: absolute;
    left: 50%;
    top: 54px;
    transform: translate3d(100px, 0, 0);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);

    nav {
      font-size: 14px;
      height: 55px;
      margin-bottom: 20px;
      border-bottom: 1px solid #f5f5f5;
      display: flex;
      padding: 0 40px;
      text-align: right;
      align-items: center;

      a {
        flex: 1;
        line-height: 1;
        display: inline-block;
        font-size: 18px;
        position: relative;
        text-align: center;
      }
    }
  }
}

.login-footer {
  padding: 30px 0 50px;
  background: #fff;

  p {
    text-align: center;
    color: #999;
    padding-top: 20px;

    a {
      line-height: 1;
      padding: 0 10px;
      color: #999;
      display: inline-block;

      ~a {
        border-left: 1px solid #ccc;
      }
    }
  }
}

.account-box {
  .toggle {
    padding: 15px 40px;
    text-align: right;

    a {
      color: $xtxColor;

      i {
        font-size: 14px;
      }
    }
  }

  .form {
    padding: 0 20px 20px 20px;

    &-item {
      margin-bottom: 28px;

      .input {
        position: relative;
        height: 36px;

        >i {
          width: 34px;
          height: 34px;
          background: #cfcdcd;
          color: #fff;
          position: absolute;
          left: 1px;
          top: 1px;
          text-align: center;
          line-height: 34px;
          font-size: 18px;
        }

        input {
          padding-left: 44px;
          border: 1px solid #cfcdcd;
          height: 36px;
          line-height: 36px;
          width: 100%;

          &.error {
            border-color: $priceColor;
          }

          &.active,
          &:focus {
            border-color: $xtxColor;
          }
        }

        .code {
          position: absolute;
          right: 1px;
          top: 1px;
          text-align: center;
          line-height: 34px;
          font-size: 14px;
          background: #f5f5f5;
          color: #666;
          width: 90px;
          height: 34px;
          cursor: pointer;
        }
      }

      >.error {
        position: absolute;
        font-size: 12px;
        line-height: 28px;
        color: $priceColor;

        i {
          font-size: 14px;
          margin-right: 2px;
        }
      }
    }

    .agree {
      a {
        color: #069;
      }
    }

    .btn {
      display: block;
      width: 100%;
      height: 40px;
      color: #fff;
      text-align: center;
      line-height: 40px;
      background: $xtxColor;

      &.disabled {
        background: #cfcdcd;
      }
    }
  }

  .action {
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;

    .url {
      a {
        color: #999;
        margin-left: 10px;
      }
    }
  }
}

.subBtn {
  background: $xtxColor;
  width: 100%;
  color: #fff;
}
</style>

2. 配置路由跳转

<script setup>
import { useRouter } from "vue-router";

const router = useRouter()
</script>

<li><a href="javascript:;" @click="router.push('/login')">请先登录</a></li>

表单校验实现

1. 改变验证

用户名：不能为空，字段名为 account

密码：不能为空且为6-14个字符，字段名为 password

同意协议：必选，字段名为 agree

<script setup>
import { ref } from 'vue'
// 表单数据对象
const userInfo = ref({
  account: '1311111111',
  password: '123456',
  agree: true
})

// 规则数据对象
const rules = {
  account: [
    { required: true, message: '用户名不能为空' }
  ],
  password: [
    { required: true, message: '密码不能为空' },
    { min: 6, max: 24, message: '密码长度要求6-14个字符' }
  ],
  agree: [
    {
      validator: (rule, val, callback) => {
        return val ? callback() : new Error('请先同意协议')
      }
    }
  ]
}
</script>

<!-- 核心在于el-form属性，还有prop,v-model配置 -->
<el-form label-position="right" label-width="60px" :model="userInfo" :rules="rules"
  status-icon>
  <el-form-item prop="account" label="账户">
    <el-input v-model="userInfo.account" />
  </el-form-item>
  <el-form-item prop="password" label="密码">
    <el-input v-model="userInfo.password" />
  </el-form-item>
  <el-form-item prop="agree" label-width="22px">
    <el-checkbox v-model="userInfo.agree" size="large">
      我已同意隐私条款和服务条款
    </el-checkbox>
  </el-form-item>
  <el-button size="large" class="subBtn">点击登录</el-button>
</el-form>

2. 整体验证

// 编写验证方法
const formRef = ref(null)
const doLogin = () => {
  // 调用实例方法
  formRef.value.validate(async (valid) => {
      console.log(valid);
    }
  )
}

// 绑定表单 + 绑定按钮
<!-- 绑定ref对象 -->
<el-form ref="formRef" label-position="right" label-width="60px" :model="userInfo" :rules="rules" 
  status-icon>
  <el-form-item prop="account" label="账户">
    <el-input v-model="userInfo.account" />
  </el-form-item>
  <el-form-item prop="password" label="密码">
    <el-input v-model="userInfo.password" />
  </el-form-item>
  <el-form-item prop="agree" label-width="22px">
    <el-checkbox v-model="userInfo.agree" size="large">
      我已同意隐私条款和服务条款
    </el-checkbox>
  </el-form-item>
  <!-- 绑定按钮 -->
  <el-button size="large" class="subBtn" @click="doLogin()">点击登录</el-button>
</el-form>

3. 登陆成果页面跳转

完善表单验证方法

// 编写验证方法
const formRef = ref(null)
const router = useRouter()
const doLogin = () => {
  const { account, password } = userInfo.value
  // 调用实例方法
  formRef.value.validate(async (valid) => {
      console.log(valid);
            // TODO LOGIN
      await loginAPI({ account, password })
      // 1. 提示用户
      ElMessage({ type: 'success', message: '登录成功' })
      // 2. 跳转首页
      router.replace({ path: '/' })
    }
  )
}

Pinia管理用户数据

基本思想：Pinia负责用户数据相关的state和action，组件中只负责触发action函数并传递参数

创建stores/user.js

import { ref } from 'vue'
import { defineStore } from 'pinia'
import { loginAPI } from "@/apis/login"

export const useUserStore = defineStore('user', () => {
  const userInfo = ref({})
  // 异步获取用户信息
  const getUserInfo = async({account, password}) => {
    const res = await loginAPI({account, password})
    userInfo.value = res.result
  }
  return { userInfo,  getUserInfo}
})