最近在使用vue3+vite学习前端的东西。在学习form表单时发现，<el-form>里面的<el-input>绑定数据时，页面输入框在键盘输入之后没有反应，每次只能输入一各字母。
javascript
<template>
<div class="login-container">
<el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">
<el-form-item prop="username">
<el-input
ref="username"
v-model="loginForm.username"
placeholder="Username"
name="username"
type="text"
tabindex="1"
autocomplete="on"
/>
</el-form-item>
<el-tooltip v-model="capsTooltip" content="Caps lock is On" placement="right" manual>
<el-form-item prop="password">
<el-input
:key="passwordType"
ref="password"
v-model="loginForm.password"
:type="passwordType"
placeholder="Password"
name="password"
tabindex="2"
autocomplete="on"
@keyup.native="checkCapslock"
@blur="capsTooltip = false"
@keyup.enter.native="handleLogin"
/>
<span class="show-pwd" @click="showPwd">
<svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
</span>
</el-form-item>
</el-tooltip>
<el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">Login</el-button>
</el-form>
</div>
</template>
<script>
import {reactive, ref, getCurrentInstance, watch, onMounted, toRefs} from 'vue'
import { useRoute, useRouter } from 'vue-router'
export default {
setup(){
const validatePassword = (rule, value, callback) => {
console.log(rule, value)
if (value.length < 8) {
callback(new Error('The password can not be less than 6 digits'))
} else {
callback()
}
}
const {proxy} = getCurrentInstance();
const loginForm = reactive({username: '', password: ''})
const loginRules = reactive({
username: [{ required: true, trigger: 'blur' }],
password: [{ required: true, trigger: 'blur', validator: validatePassword }]
})
const passwordType = ref('password')
const capsTooltip = ref(false)
const loading = ref(false)
const redirect = ref(undefined)
// 获取当前路由
const route = useRoute()
// 获取路由实例
const router = useRouter()
const checkCapslock = (e) => {
const { key } = e
capsTooltip.value = key && key.length === 1 && (key >= 'A' && key <= 'Z')
}
const showPwd = () => {
if (passwordType === 'password') {
passwordType.value = ''
} else {
passwordType.value = 'password'
}
this.$nextTick(() => {
proxy.$refs.password.focus()
})
}
const handleLogin = () => {
console.log(loginForm)
proxy.$refs.loginForm.validate(valid => {
if (valid) {
loading.value = true
this.$store.dispatch('user/login', loginForm.value)
.then(() => {
router.push({ path: this.redirect || '/', query: otherQuery.value })
loading.value = false
})
.catch(() => {
loading.value = false
})
} else {
console.log('error submit!!')
return false
}
})
}
// 当前路由发生变化时，调用回调函数
watch(() => route, () => {
// 回调函数
const query = route.query
if (query) {
redirect.value = query.redirect
}
}, {
immediate: true,
deep: true
})
onMounted(() => {
const {proxy} = getCurrentInstance();
if (loginForm.username === '') {
proxy.$refs.username.focus()
} else if (loginForm.password === '') {
proxy.$refs.password.focus()
}
})
return {
loginForm, loginRules, passwordType, capsTooltip, loading, redirect,
checkCapslock, showPwd, handleLogin
}
}
}
</script>
<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */
$bg:#283443;
$light_gray:#fff;
$cursor: #fff;
/* reset element-ui css */
.login-container {
.el-input {
display: inline-block;
height: 47px;
width: 85%;
input {
background: transparent;
border: 0px;
-webkit-appearance: none;
border-radius: 0px;
padding: 12px 5px 12px 15px;
color: $light_gray;
height: 47px;
caret-color: $cursor;
&:-webkit-autofill {
box-shadow: 0 0 0px 1000px $bg inset !important;
-webkit-text-fill-color: $cursor !important;
}
}
}
.el-form-item {
border: 1px solid rgba(255, 255, 255, 0.1);
background: rgba(0, 0, 0, 0.1);
border-radius: 5px;
color: #454545;
}
}
</style>
<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;
.login-container {
min-height: 100%;
width: 100%;
background-color: $bg;
overflow: hidden;
// 背景色设置为透明
:deep(.el-input .el-input__wrapper){
background-color:rgba(0,0,0,0);
box-shadow: none;
width: 100%;
}
.login-form {
position: relative;
width: 520px;
max-width: 100%;
padding: 160px 35px 0;
margin: 0 auto;
overflow: hidden;
}
.tips {
font-size: 14px;
color: #fff;
margin-bottom: 10px;
span {
&:first-of-type {
margin-right: 16px;
}
}
}
.svg-container {
padding: 6px 5px 6px 15px;
color: $dark_gray;
vertical-align: middle;
width: 30px;
display: inline-block;
}
.title-container {
position: relative;
.title {
font-size: 26px;
color: $light_gray;
margin: 0px auto 40px auto;
text-align: center;
font-weight: bold;
}
}
.show-pwd {
position: absolute;
right: 10px;
top: 7px;
font-size: 16px;
color: $dark_gray;
cursor: pointer;
user-select: none;
}
.thirdparty-button {
position: absolute;
right: 0;
bottom: 6px;
}
@media only screen and (max-width: 470px) {
.thirdparty-button {
display: none;
}
}
}
</style>最后发现是，因为from表单的ref命名不能和数据对象一致：
最后将ref="loginForm"改成ref="loginFormRef"，和绑定的对象使用相同的命名即可。