13vue3实战-----退出登录和记住密码功能

1.退出登录功能

退出登录主要做两件事情:清除token等用户信息并且跳转路由到登录页面。

<script setup lang="ts">
import { useRouter } from 'vue-router'
import { LOGIN_TOKEN } from '@/global/constants'
import { localCache } from '@/utils/cache'

const router = useRouter()
function handleExitClick() {
  localCache.removeCache(LOGIN_TOKEN)
  router.push('/login')
}
</script>

2.记住密码功能

父组件login-panel.vue:

<script setup lang="ts">
import { localCache } from '@/utils/cache'
import { ref, watch } from 'vue'
import PaneAccount from './pane-account.vue'
import PanePhone from './pane-phone.vue'

const activeName = ref('account')
const isRemPwd = ref<boolean>(localCache.getCache('isRemPwd') ?? false)
//监听记住密码的复选框是否被勾选
watch(isRemPwd, (newValue) => {
  localCache.setCache('isRemPwd', newValue)
})
const accountRef = ref<InstanceType<typeof PaneAccount>>()
function handleLoginBtnClick() {
  if (activeName.value === 'account') {
    //loginAction中将密码是否勾选的值传给子组件
    accountRef.value?.loginAction(isRemPwd.value)
  } else {
    console.log('用户在进行手机登录')
  }
}
</script>

子组件pane-account.vue:

<script setup lang="ts">
import { reactive, ref } from 'vue'
import { ElMessage } from 'element-plus'
import type { FormRules, ElForm } from 'element-plus'
import useLoginStore from '@/store/login/login'
import type { IAccount } from '@/types'
import { localCache } from '@/utils/cache'

const CACHE_NAME = 'name'
const CACHE_PASSWORD = 'password'

// 1.定义account数据
const account = reactive<IAccount>({
  name: localCache.getCache(CACHE_NAME) ?? '',
  password: localCache.getCache(CACHE_PASSWORD) ?? ''
})

// 2.定义校验规则
const accountRules: FormRules = {
  name: [
    { required: true, message: '必须输入帐号信息~', trigger: 'blur' },
    {
      pattern: /^[a-z0-9]{6,20}$/,
      message: '必须是6~20数字或字母组成~',
      trigger: 'blur'
    }
  ],
  password: [
    { required: true, message: '必须输入密码信息~', trigger: 'blur' },
    {
      pattern: /^[a-z0-9]{3,}$/,
      message: '必须是3位以上数字或字母组成',
      trigger: 'blur'
    }
  ]
}

// 3.执行帐号的登录逻辑
const formRef = ref<InstanceType<typeof ElForm>>()
const loginStore = useLoginStore()
function loginAction(isRemPwd: boolean) {
  formRef.value?.validate((valid) => {
    if (valid) {
      // 1.获取用户输入的帐号和密码
      const name = account.name
      const password = account.password

      // 2.向服务器发送网络请求(携带账号和密码)
      loginStore.loginAccountAction({ name, password }).then(() => {
        // 3.判断是否需要记住密码
        if (isRemPwd) {
          localCache.setCache(CACHE_NAME, name)
          localCache.setCache(CACHE_PASSWORD, password)
        } else {
          localCache.removeCache(CACHE_NAME)
          localCache.removeCache(CACHE_PASSWORD)
        }
      })
    } else {
      ElMessage.error('Oops, 请您输入正确的格式后再操作~~.')
    }
  })
}

defineExpose({
  loginAction
})
</script>

效果如下: