基于Vue3和element-plus实现登录功能(最终完整版)

先看一下最终要实现的效果:

登录页面:

基于Vue3和element-plus实现登录功能(最终完整版)

注册页面:

基于Vue3和element-plus实现登录功能(最终完整版)

(1)引入element-plus组件库

引入组件库的方式有好多种,在这里我就在main.js全局引入了.

npm i element-plus -S

main.js中代码:

import { createApp } from "vue";
//element-plus
import ElementPlus from "element-plus";
import "element-plus/dist/index.css";
import App from "./App.vue";
import router from "./router";
import axios from "axios";
import store from "./store";
//创建实例
const app = createApp(App);
//全局应用配置
app.config.globalProperties.$axios = axios;
 
app.use(ElementPlus).use(store).use(router).mount("#app");

引入之后自己可以用几个按钮测试一下是否引入成功.

(2)登录及注册页面

html部分

views/account/Login.vue

<template>
  <div id="login">
<div>
  <div class="form-wrap">
<ul class="menu-tab">
  <li
:class="{ current: current_menu === item.type }"
v-for="item in data.tab_menu"
:key="item.type"
@click="toggleMenu(item.type)"
  >
{{ item.label }}
  </li>
</ul>
<el-form
  :model="data.form"
  ref="account_form"
  :rules="data.form_rules"
  label-width="80px"
>
  <el-form-item prop="username">
<label class="form-label">用户名</label>
<el-input type="password" v-model="data.form.username" />
  </el-form-item>
  <el-form-item prop="password">
<label class="form-label">密码</label>
<el-input type="password" v-model="data.form.password" />
  </el-form-item>
  <el-form-item v-show="current_menu === 'register'" prop="passwords ">
<label class="form-label">确认密码</label>
<el-input type="password" v-model="data.form.passwords" />
  </el-form-item>
  <el-form-item prop="code">
<label class="form-label">验证码</label>
<el-row :gutter="10">
  <el-col :span="14">
<el-input v-model="data.form.code"></el-input>
  </el-col>
  <el-col :span="10">
<el-button
  type="success"
  class="el-button-block"
  @click="handleGetCode"
  >获取验证码</el-button
></el-col
  >
</el-row>
  </el-form-item>
  <el-form-item>
<el-button
  type="danger"
  class="el-button-block"
  :disabled="data.submit_button_disabled"
  :loading="data.submit_button_loading"
  @click="submitForm"
  >{{ current_menu === "login" ? "登录" : "注册" }}</el-button
>
  </el-form-item>
</el-form>
  </div>
</div>
  </div>
</template>

js部分

<script>
import { reactive, ref, getCurrentInstance, onBeforeUnmount } from "vue";
import {
  validate_email,
  validate_password,
  validate_code,
} from "@/utils/validate";
import { GetCode } from "@/api/common";
import { Register, Login } from "@/api/account";
import sha1 from "js-sha1"; //密码加密
// ErrorHttp
export default {
  setup() {
const instance = getCurrentInstance();
const { proxy } = getCurrentInstance();
console.log("instance", instance);
// console.log("proxy", proxy);
// 用户名校验
const validate_name_rules = (rule, value, callback) => {
  let regEmail = validate_email(value);
  if (value === "") {
callback(new Error("请输入邮箱"));
  } else if (!regEmail) {
callback(new Error("邮箱格式不正确"));
  } else {
callback();
  }
};
 
//获取验证码
const handleGetCode = () => {
  const username = data.form.username;
  const password = data.form.password;
  const passwords = data.form.passwords;
  //校验用户名
  if (!validate_email(username)) {
proxy.$message({
  message: "用户名不能为空 或 格式不正确",
  type: "error",
});
return false;
  }
 
  //校验密码
  if (!validate_password(password)) {
proxy.$message({
  message: "密码不能为空 或 格式不正确",
  type: "error",
});
return false;
  }
 
  //判断为注册时,校验两次密码
  if (data.current_menu === "redister" ** (password !== passwords)) {
proxy.$message({
  message: "两次密码不一致",
  type: "error",
});
return false;
  }
  //获取验证码接口
  const requestData = {
username: data.form.username,
module: "register",
  };
 
  data.code_button_loading = true;
  data.code_button_text = "发送中";
  GetCode(requestData)
.then((res) => {
  // console.log("123", res.data);验证码
  // const data=res.resCode
 
  const data = res;
  if (data.resCode === 1024) {
proxy.$message.error(data.message);
return false;
  }
  // 成功 Elementui 提示
  proxy.$message({
message: data.message,
type: "success",
  });
  //执行倒计时
  countdown();
})
.catch((err) => {
  console.log(err);
  data.code_button_loading = false;
  data.code_button_text = "发送验证码";
});
 
  // ErrorHttp(requestData)
  //   .then((res) => {
  // console.log(res.data);
  // // const data=res.resCode
  // const data = res.data;
  // if (data.resCode === 1024) {
  //   proxy.$message.error(data.message);
  //   return false;
  // }
  // // 成功 Elementui 提示
  // proxy.$message({
  //   message: data.message,
  //   type: "success",
  // });
  // //执行倒计时
  // countdown();
  //   })
  //   .catch((err) => {
  // console.log(err);
  // data.code_button_loading = false;
  // data.code_button_text = "发送验证码";
  //   });
};
 
/** 倒计时 */
const countdown = (time) => {
  if (time && typeof time !== "number") {
return false;
  }
  let second = time || 60; // 默认时间
  data.code_button_loading = false; // 取消加载
  data.code_button_disabled = true; // 禁用按钮
  data.code_button_text = `倒计进${second}秒`; // 按钮文本
  // 判断是否存在定时器,存在则先清除
  if (data.code_button_timer) {
clearInterval(data.code_button_timer);
  }
  // 开启定时器
  data.code_button_timer = setInterval(() => {
second--;
data.code_button_text = `倒计进${second}秒`; // 按钮文本
if (second <= 0) {
  data.code_button_text = `重新获取`; // 按钮文本
  data.code_button_disabled = false; // 启用按钮
  clearInterval(data.code_button_timer); // 清除倒计时
}
  }, 1000);
};
 
// 组件销毁之前 - 生命周期
onBeforeUnmount(() => {
  clearInterval(data.code_button_timer); // 清除倒计时
});
 
// 校验确认密码
const validate_password_rules = (rule, value, callback) => {
  let regPassword = validate_password(value);
  if (value === "") {
callback(new Error("请输入密码"));
  } else if (!regPassword) {
callback(new Error("请输入>=6并且<=20位的密码,包含数字、字母"));
  } else {
callback();
  }
};
 
// 校验确认密码
const validate_passwords_rules = (rule, value, callback) => {
  // 如果是登录,不需要校验确认密码,默认通过
  if (data.current_menu === "login") {
callback();
  }
  let regPassword = validate_password(value);
  // 获取“密码”
  const passwordValue = data.form.password;
  if (value === "") {
callback(new Error("请输入密码"));
  } else if (!regPassword) {
callback(new Error("请输入>=6并且<=20位的密码,包含数字、字母"));
  } else if (passwordValue && passwordValue !== value) {
callback(new Error("两次密码不一致"));
  } else {
callback();
  }
};
 
const validate_code_rules = (rule, value, callback) => {
  let regCode = validate_code(value);
  // 激活提交按钮
  data.submit_button_disabled = false;
  if (value === "") {
callback(new Error("请输入验证码"));
  } else if (!regCode) {
callback(new Error("请输入6位的验证码"));
  } else {
callback();
  }
};
 
// 提交表单
const submitForm = () => {
  // let res = proxy.$refs.account_form;
  proxy.$refs.account_form.validate((valid) => {
if (valid) {
  console.log("提交表单", current_menu.value);
  current_menu.value === "login" ? login() : register();
  // register();
} else {
  alert("error submit!");
  return false;
}
  });
  // console.log(" 提交表单", res);
};
/** 登录 */
const login = () => {
  const requestData = {
username: data.form.username,
password: sha1(data.form.password),
code: data.form.code,
  };
  data.submit_button_loading = true;
  Login(requestData)
.then((response) => {
  console.log("login", response);
  data.submit_button_loading = false;
  proxy.$message({
message: response.message,
type: "success",
  });
 
  reset();
})
.catch((error) => {
  console.log("登录失败", error);
  data.submit_button_loading = false;
});
};
//注册
const register = () => {
  const requestData = {
username: data.form.username,
password: sha1(data.form.password),
code: data.form.code,
  };
  data.submit_button_loading = true;
  Register(requestData)
.then((res) => {
  proxy.$message({
message: res.message,
type: "success",
  });
})
.catch((error) => {
  console.log("注册错误", error);
  data.submit_button_loading = false;
});
};
 
/** 重置 */
const reset = () => {
  // 重置表单
  proxy.$refs.form.resetFields();
  // 切回登录模式
  data.current_menu = "login";
  // 清除定时器
  data.code_button_timer && clearInterval(data.code_button_timer);
  // 获取验证码重置文本
  data.code_button_text = "获取验证码";
  // 获取验证码激活
  data.code_button_disabled = false;
  // 禁用提交按钮
  data.submit_button_disabled = true;
  // 取消提交按钮加载
  data.submit_button_loading = false;
};
 
const data = reactive({
  form_rules: {
username: [{ validator: validate_name_rules, trigger: "change" }],
password: [{ validator: validate_password_rules, trigger: "change" }],
passwords: [{ validator: validate_passwords_rules, trigger: "change" }],
code: [{ validator: validate_code_rules, trigger: "change" }],
  },
  form: {
username: "", // 用户名
password: "", // 密码
passwords: "", // 确认密码
code: "", // 验证码
  },
  tab_menu: [
{ type: "login", label: "登录" },
{ type: "register", label: "注册" },
  ],
  /**
   * 获取验证码按钮交互
   */
  code_button_disabled: false,
  code_button_loading: false,
  code_button_text: "获取验证码",
  code_button_timer: null,
  // 提交按钮
  submit_button_disabled: true,
});
 
const toggleMenu = (type) => {
  current_menu.value = type;
};
let current_menu = ref(data.tab_menu[0].type);
// const dataItem = toRefs(data);
return {
  // ...dataItem,
  data,
  current_menu,
  toggleMenu,
  handleGetCode,
  submitForm,
  register,
  reset,
  login,
};
  },
};
</script>

css部分(使用了scss)

<style lang="scss" scoped>
#login {
  height: 100vh;
  background-color: #344a5f;
}
.form-wrap {
  width: 320px;
  padding-top: 100px;
  margin: auto;
}
.menu-tab {
  text-align: center;
  li {
display: inline-block;
padding: 10px 24px;
margin: 0 10px;
color: #fff;
font-size: 14px;
border-radius: 5px;
cursor: pointer;
&.current {
  background-color: rgba(0, 0, 0, 0.1);
}
  }
}
.form-label {
  display: block;
  color: #fff;
  font-size: 14px;
}
</style>

(3)封装一些公共方法及样式

新建styles文件夹,然后新建几个样式文件:

normalize.scss

/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */
 
/* Document
   ========================================================================== */
 
/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 */
 /* div的默认样式不存在padding和margin为0的情况*/
 html, body, span, applet, object, iframe,
 h1, h2, h3, h4, h5, h6, p, blockquote, pre,
 a, abbr, acronym, address, big, cite, code,
 del, dfn, em, img, ins, kbd, q, s, samp,
 small, strike, strong, sub, sup, tt, var,
 b, u, i, center,
 dl, dt, dd, ol, ul,
 fieldset, form, legend,
 table, caption, tbody, tfoot, thead, tr, th, td,
 article, aside, canvas, details, embed, 
 figure, figcaption, footer, header, hgroup, 
 menu, nav, output, ruby, section, summary,
 time, mark, audio, video {
   margin: 0;
   padding: 0;
   font-size: 100%;
   font: inherit;
   vertical-align: baseline;
 }
 /* HTML5 display-role reset for older browsers */
 article, aside, details, figcaption, figure, 
 footer, header, hgroup, menu, nav, section {
   display: block;
 }
 html {
line-height: 1.15; /* 1 */
-webkit-text-size-adjust: 100%; /* 2 */
  }
  
  /* Sections
 ========================================================================== */
  
  /**
   * Remove the margin in all browsers.
   */
  
  body {
margin: 0;
font-family: 'Microsoft YaHei';
font-size: 14px;
  }
  
  /**
   * Render the `main` element consistently in IE.
   */
  
  main {
display: block;
  }
  
  /**
   * Correct the font size and margin on `h1` elements within `section` and
   * `article` contexts in Chrome, Firefox, and Safari.
   */
  
  
  /* Grouping content
 ========================================================================== */
  
  /**
   * 1. Add the correct box sizing in Firefox.
   * 2. Show the overflow in Edge and IE.
   */
  
  hr {
box-sizing: content-box; /* 1 */
height: 0; /* 1 */
overflow: visible; /* 2 */
  }
  
  /**
   * 1. Correct the inheritance and scaling of font size in all browsers.
   * 2. Correct the odd `em` font sizing in all browsers.
   */
  
  pre {
font-family: monospace, monospace; /* 1 */
font-size: 1em; /* 2 */
  }
  
  /* Text-level semantics
 ========================================================================== */
  
  /**
   * Remove the gray background on active links in IE 10.
   */
  
  a {
background-color: transparent;
text-decoration: none;
  }
 
  
  /**
   * 1. Remove the bottom border in Chrome 57-
   * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
   */
  
  abbr[title] {
border-bottom: none; /* 1 */
text-decoration: underline; /* 2 */
text-decoration: underline dotted; /* 2 */
  }
  
  /**
   * Add the correct font weight in Chrome, Edge, and Safari.
   */
  
  b,
  strong {
font-weight: bolder;
  }
  
  /**
   * 1. Correct the inheritance and scaling of font size in all browsers.
   * 2. Correct the odd `em` font sizing in all browsers.
   */
  
  code,
  kbd,
  samp {
font-family: monospace, monospace; /* 1 */
font-size: 1em; /* 2 */
  }
  
  /**
   * Add the correct font size in all browsers.
   */
  
  small {
font-size: 80%;
  }
  
  /**
   * Prevent `sub` and `sup` elements from affecting the line height in
   * all browsers.
   */
  
  sub,
  sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
  }
  
  sub {
bottom: -0.25em;
  }
  
  sup {
top: -0.5em;
  }
  
  /* Embedded content
 ========================================================================== */
  
  /**
   * Remove the border on images inside links in IE 10.
   */
  
  img {
display: block;
border-style: none;
  }
  
  /* Forms
 ========================================================================== */
  
  /**
   * 1. Change the font styles in all browsers.
   * 2. Remove the margin in Firefox and Safari.
   */
  
  button,
  input,
  optgroup,
  select,
  textarea {
font-family: inherit; /* 1 */
font-size: 100%; /* 1 */
margin: 0; /* 2 */
  }
  
  /**
   * Show the overflow in IE.
   * 1. Show the overflow in Edge.
   */
  
  button,
  input { /* 1 */
overflow: visible;
  }
  
  /**
   * Remove the inheritance of text transform in Edge, Firefox, and IE.
   * 1. Remove the inheritance of text transform in Firefox.
   */
  
  button,
  select { /* 1 */
text-transform: none;
  }
  
  /**
   * Correct the inability to style clickable types in iOS and Safari.
   */
  
  button,
  [type="button"],
  [type="reset"],
  [type="submit"] {
-webkit-appearance: button;
  }
  
  /**
   * Remove the inner border and padding in Firefox.
   */
  
  button::-moz-focus-inner,
  [type="button"]::-moz-focus-inner,
  [type="reset"]::-moz-focus-inner,
  [type="submit"]::-moz-focus-inner {
border-style: none;
padding: 0;
  }
  
  /**
   * Restore the focus styles unset by the previous rule.
   */
  
  button:-moz-focusring,
  [type="button"]:-moz-focusring,
  [type="reset"]:-moz-focusring,
  [type="submit"]:-moz-focusring {
outline: 1px dotted ButtonText;
  }
  
  /**
   * Correct the padding in Firefox.
   */
  
  fieldset {
padding: 0.35em 0.75em 0.625em;
  }
  
  /**
   * 1. Correct the text wrapping in Edge and IE.
   * 2. Correct the color inheritance from `fieldset` elements in IE.
   * 3. Remove the padding so developers are not caught out when they zero out
   *`fieldset` elements in all browsers.
   */
  
  legend {
box-sizing: border-box; /* 1 */
color: inherit; /* 2 */
display: table; /* 1 */
max-width: 100%; /* 1 */
padding: 0; /* 3 */
white-space: normal; /* 1 */
  }
  
  /**
   * Add the correct vertical alignment in Chrome, Firefox, and Opera.
   */
  
  progress {
vertical-align: baseline;
  }
  
  /**
   * Remove the default vertical scrollbar in IE 10+.
   */
  
  textarea {
overflow: auto;
  }
  
  /**
   * 1. Add the correct box sizing in IE 10.
   * 2. Remove the padding in IE 10.
   */
  
  [type="checkbox"],
  [type="radio"] {
box-sizing: border-box; /* 1 */
padding: 0; /* 2 */
  }
  
  /**
   * Correct the cursor style of increment and decrement buttons in Chrome.
   */
  
  [type="number"]::-webkit-inner-spin-button,
  [type="number"]::-webkit-outer-spin-button {
height: auto;
  }
  
  /**
   * 1. Correct the odd appearance in Chrome and Safari.
   * 2. Correct the outline style in Safari.
   */
  
  [type="search"] {
-webkit-appearance: textfield; /* 1 */
outline-offset: -2px; /* 2 */
  }
  
  /**
   * Remove the inner padding in Chrome and Safari on macOS.
   */
  
  [type="search"]::-webkit-search-decoration {
-webkit-appearance: none;
  }
  
  /**
   * 1. Correct the inability to style clickable types in iOS and Safari.
   * 2. Change font properties to `inherit` in Safari.
   */
  
  ::-webkit-file-upload-button {
-webkit-appearance: button; /* 1 */
font: inherit; /* 2 */
  }
  
  /* Interactive
 ========================================================================== */
  
  /*
   * Add the correct display in Edge, IE 10+, and Firefox.
   */
  
  details {
display: block;
  }
  
  /*
   * Add the correct display in all browsers.
   */
  
  summary {
display: list-item;
  }
  
  /* Misc
 ========================================================================== */
  
  /**
   * Add the correct display in IE 10+.
   */
  
  template {
display: none;
  }
  
  /**
   * Add the correct display in IE 10.
   */
  
  [hidden] {
display: none;
  }
 
  ul, li { list-style: none; }

elementui.scss(当时测试时用的)

.el-button-block{
display: block;
width: 100%;
}

新建main.scss(引入上方两个样式文件)

@import "./normalize.scss";
@import './elementui.scss'

vue.config.js配置一下样式文件

  css: {
// 是否使用css分离插件 ExtractTextPlugin
extract: true,
// 开启 CSS source maps?
sourceMap: false,
// css预设器配置项
loaderOptions: {
  scss: {
additionalData: `@import "./src/styles/main.scss";`,
  },
},
// requireModuleExtension: true,
  },

登录中封装的校验方法

新建utils文件夹,

a.validate.js

// 校验邮箱
export function validate_email(value) {
  let regEmail = /^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/;
  return regEmail.test(value);
}
 
// 校验密码
export function validate_password(value) {
  let regPassword = /^(?!\D+$)(?![^a-zA-Z]+$)\S{6,20}$/;
  return regPassword.test(value);
}
 
// 校验验证码
export function validate_code(value) {
  let regCode = /^[a-z0-9]{6}$/;
  return regCode.test(value);
}

封装请求方法

npm i axios -S

记得先在main.js中引入axios

import axios from "axios";

utils中新建request.js

import axios from "axios";
//引入element-plus
import { ElMessage } from "element-plus";
console.log("11", process.env.VUE_APP_API); //undefined??
 
//创建实例
const service = axios.create({
  baseURL: "/devApi", //请求地址
  timeout: 5000, //超时
});
 
//添加请求拦截器
service.interceptors.request.use(
  function (config) {
//在发送请求之前做些什么
return config;
  },
  function (error) {
console.log(error.request);
const errorData = JSON.parse(error.request.response);
if (errorData.message) {
  //判断是否具有message属性
  ElMessage({
message: errorData.message,
type: "error",
  });
}
//对请求错误做些什么
return Promise.reject(errorData);
  }
);
 
//添加响  应拦截器
service.interceptors.response.use(
  function (response) {
//对响应数据做些什么
console.log("响应数据", response);
const data = response.data;
if (data.resCode === 0) {
  return Promise.resolve(data);
} else {
  ElMessage({
message: data.message,
type: "error",
  });
  return Promise.reject(data);
}
  },
  function (error) {
//对响应错误做些什么
const errorData = JSON.parse(error.request.response);
if (errorData.message) {
  //判断是否具有message属性
  ElMessage({
message: errorData.message,
type: "error",
  });
}
 
return Promise.reject(errorData);
  }
);
 
//暴露service
export default service;

(4)配置环境变量

和项目根路径同级,新建几个文件:

.env.development

VUE_APP_API = '/devApi'

可以自定义,但是必须是VUE_APP_XXX的格式

.env.production

VUE_APP_API = '/production'

.env.test

VUE_APP_API = '/test'

配置完后记得在axios文件中打印一下,看下能输出自己配置的环境变量吗.

基于Vue3和element-plus实现登录功能(最终完整版)

(5)配置代理(跨域)

基本大同小异,代理地址改成自己的就可以了.

  devServer: {
open: false, //编译完成是否自动打开网页
host: "0.0.0.0", //指定使用地址,默认是localhost,0.0.0.0代表可以被外界访问
port: 8080,
proxy: {
  "/devApi": {
target: "http://v3.web-jshtml.cn/api", //(必选)API服务器的地址
changeOrigin: true, //(必选) 是否允许跨域
ws: false, //(可选) 是否启用websockets
secure: false, //(可选) 是否启用https接口
pathRewrite: {
  "^/devApi": "", //匹配开头为/devApi的字符串,并替换成空字符串
},
  },
},
  },

登录基本上是完成了,还有优化的点,比如说登录放在vuex中,这个我先不实现了,各位小伙伴觉得还不错的话,动手点个赞喽!!!

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