Vue如何在页面加载时将url的参数赋值给组件

<template>

  <input v-model="loginForm.username" name="username" type="text" tabindex="1"  auto-complete="on" />

<input v-model="loginForm.password" :type="passwordType" name="password"  tabindex="2"/>

</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
　　　　　username:'admin',//默认值
        password: '123456'
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    // 监测路由变化,只要变化了就调用获取路由参数方法将数据存储本组件
    $route: 'getQuery'
  },
  // mounted页面加载后执行,加载后调用了getQuery
  mounted() { this.getQuery() },
  methods: {
    getQuery() {
      var isAutoLogin = false
      if (this.$route.query.u !== undefined) {
        this.loginForm.username = this.$route.query.u //将获取到的值赋给loginForm对象的username属性
        isAutoLogin = true
      }
      if (this.$route.query.p !== undefined) {
        this.loginForm.password = this.$route.query.p
        isAutoLogin = true
      }
      this.redirect = this.$route.query && this.$route.query.redirect
　　　　//url中带了账号密码则自动登陆
      if (isAutoLogin) { this.handleLogin() }
    },
    handleLogin() {
      //登陆
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>