刷新网页的时候浏览器会自动填充用户名和密码

刷新之后效果图

解决方案

完整的login.vue代码

<template><div class="login"><el-card><h2 class="title"  style="text-align: center; font-weight: bold; color: #707070;">数字化监管平台</h2><el-tabs v-model="activeName" @tab-click="handleClick" stretch><el-tab-pane label="机构和姓名登录" name="first"><div class="form-container"><el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form"><el-form-item label="" prop="deptId"><treeselect class="el-treeselect" v-model="loginForm.deptId" :options="deptOptions" :show-count="true"placeholder="请选择归属机构"/><svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/></el-form-item><el-form-item prop="nickName"><el-inputv-model="loginForm.nickName"type="text"auto-complete="off"placeholder="姓名":readonly="isReadOnly"@focus="handleFocus"><svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/></el-input></el-form-item><el-form-item prop="password"><el-inputv-model="loginForm.password"type="password"auto-complete="off"placeholder="密码"@keyup.enter.native="handleLogin":readonly="isReadOnly"@focus="handleFocus"><svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/></el-input></el-form-item><el-form-item prop="code" v-if="captchaEnabled"><el-inputv-model="loginForm.code"auto-complete="off"placeholder="验证码"style="width: 63%"@keyup.enter.native="handleLogin"><svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/></el-input><div class="login-code"><img :src="codeUrl" @click="getCode" class="login-code-img"/></div></el-form-item><el-form-item style="width:100%;"><el-button:loading="loading"size="medium"type="primary"style="width:100%;"@click.native.prevent="handleLoginByOrg"><span v-if="!loading">登 录</span><span v-else>登 录 中...</span></el-button></el-form-item></el-form></div></el-tab-pane><el-tab-pane label="用户名登录" name="second"><el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form"><el-form-item prop="username"><el-inputv-model="loginForm.username"type="text"auto-complete="off"placeholder="账号":readonly="isReadOnly"@focus="handleFocus"><svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon"/></el-input></el-form-item><el-form-item prop="password"><el-inputv-model="loginForm.password"type="password"auto-complete="off"placeholder="密码"@keyup.enter.native="handleLogin":readonly="isReadOnly"@focus="handleFocus"><svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon"/></el-input></el-form-item><el-form-item prop="code" v-if="captchaEnabled"><el-inputv-model="loginForm.code"auto-complete="off"placeholder="验证码"style="width: 63%"@keyup.enter.native="handleLogin"><svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon"/></el-input><div class="login-code"><img :src="codeUrl" @click="getCode" class="login-code-img"/></div></el-form-item><el-form-item style="width:100%;"><el-button:loading="loading"size="medium"type="primary"style="width:100%;"@click.native.prevent="handleLogin"><span v-if="!loading">登 录</span><span v-else>登 录 中...</span></el-button><div style="float: right;" v-if="register"><router-link class="link-type" :to="'/register'">立即注册</router-link></div></el-form-item></el-form><!--  底部  --><!-- <div class="el-login-footer"><span>Copyright © 2018-2023 ruoyi.vip All Rights Reserved.</span></div> --></el-tab-pane></el-tabs></el-card></div></template><script>import {getCodeImg} from "@/api/login";import Cookies from "js-cookie";import {encrypt, decrypt} from '@/utils/jsencrypt';import {deptTreeSelect} from "@/api/system/user";import Treeselect from "@riophae/vue-treeselect";import "@riophae/vue-treeselect/dist/vue-treeselect.css";import {Message} from 'element-ui'export default {name: "Login",components: {Treeselect},data() {return {codeUrl: "",loginForm: {username: "",password: "",rememberMe: false,code: "",uuid: ""},loginRules: {username: [{required: true, trigger: "blur", message: "请输入您的账号"}],password: [{required: true, trigger: "blur", message: "请输入您的密码"}],code: [{required: true, trigger: "change", message: "请输入验证码"}]},loading: false,// 验证码开关captchaEnabled: true,// 注册开关register: false,redirect: undefined,activeName: 'first',// 部门树选项deptOptions: undefined,isReadOnly: true};},watch: {$route: {handler: function (route) {this.redirect = route.query && route.query.redirect;},immediate: true}},created() {this.getDeptTree();this.getCode();},methods: {getCode() {getCodeImg().then(res => {this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;if (this.captchaEnabled) {this.codeUrl = "data:image/gif;base64," + res.img;this.loginForm.uuid = res.uuid;}});},handleLogin() {this.$refs.loginForm.validate(valid => {if (valid) {this.loading = true;if (this.loginForm.rememberMe) {Cookies.set("username", this.loginForm.username, {expires: 30});Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});} else {Cookies.remove("username");Cookies.remove("password");Cookies.remove('rememberMe');}this.$store.dispatch("Login", this.loginForm).then(() => {this.$router.push({path: this.redirect || "/"}).catch(() => {});}).catch(() => {this.loading = false;if (this.captchaEnabled) {this.getCode();}});}});},handleLoginByOrg() {//校验if (!this.loginForm.nickName) {Message.info("用户名称不能为空!");return;}if (!this.loginForm.deptId || this.loginForm.deptId === undefined) {Message.info("请选择机构名称!");return;}if (!this.loginForm.password) {Message.info("密码不能为空!");return;}this.$refs.loginForm.validate(valid => {if (valid) {this.loading = true;if (this.loginForm.rememberMe) {Cookies.set("deptId", this.loginForm.deptId, {expires: 30});Cookies.set("nickName", this.loginForm.nickName, {expires: 30});Cookies.set("username", this.loginForm.username, {expires: 30});Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});} else {Cookies.remove("nickName");Cookies.remove("username");Cookies.remove("password");Cookies.remove('rememberMe');}this.$store.dispatch("LoginByOrg", this.loginForm).then(response => {console.log('response', response);Message.info(response)this.$router.push({path: this.redirect || "/"}).catch(() => {});this.loading = false;}).catch(() => {this.loading = false;if (this.captchaEnabled) {this.getCode();}});}});},handleClick(tab, event) {console.log(tab, event);},/** 查询部门下拉树结构 */getDeptTree() {deptTreeSelect().then(response => {this.deptOptions = response.data;});},handleFocus(event) {this.isReadOnly = false;// 可能还需要在某些情况下重新聚焦，以确保输入框获得焦点// event.target.blur();// event.target.focus();},}};
</script><style rel="stylesheet/scss" lang="scss">.login {display: flex;flex-direction: column;justify-content: center;align-items: center;height: 100%;background-image: url("../assets/images/login-new.png");background-size: cover;}.el-tabs {background-color: #ffffff; /* 设置底色为白色 */}.login-form {border-radius: 6px;background: #ffffff;width: 400px;padding: 25px 25px 5px 25px;.el-input {height: 38px;input {height: 38px;}}.input-icon {height: 39px;width: 14px;margin-left: 2px;}}.login-tip {font-size: 13px;text-align: center;color: #bfbfbf;}.login-code {width: 33%;height: 38px;float: right;img {cursor: pointer;vertical-align: middle;}}.login-code-img {height: 38px;}.form-container {overflow-y: auto;}</style>

核心代码原理(添加 readonly 和监听 focus 事件)

用户名和密码字段即使没有赋值也出现浏览器自动填充的情况，可以采用以下方法来禁止这一行为：

1. 使用 auto-complete 属性(实测并没有生效)：
   对于 el-input 组件，你应该将 auto-complete 属性设置为 "new-password"，即使对于非密码字段也是如此，因为某些浏览器可能对常见的字段名有所识别并尝试自动填充。例如：

   <el-input v-model="username" auto-complete="new-password"></el-input>
   <el-input v-model="password" type="password" auto-complete="new-password"></el-input>
   

2. 添加 readonly 和监听 focus 事件 (实测有效)：
   初始时设置输入框为只读（readonly），并在获得焦点时移除只读属性，这可以阻止某些浏览器的自动填充功能。需要在组件的 focus 事件中移除 readonly。

   <el-inputv-model="username"auto-complete="new-password":readonly="isReadOnly"@focus="handleFocus"
   ></el-input><script>
   export default {data() {return {username: '',isReadOnly: true,};},methods: {handleFocus(event) {this.isReadOnly = false;// 可能还需要在某些情况下重新聚焦，以确保输入框获得焦点// event.target.blur();// event.target.focus();},},
   };
   </script>