Vue系列教程（18）- 集成UI框架（ElementUI）

vue create elui-demo

#安装vue-routern 
npm install vue-router --save-dev
#安装element-ui
npm i element-ui -S
#安装依赖
npm install
# 安装SASS加载器
cnpm install sass-loader node-sass --save-dev

<template>
  <div>
    <el-form
      ref="loginForm"
      :model="form"
      :rules="rules"
      label-width="80px"
      class="login-box"
    >
      <h3 class="login-title">欢迎登录</h3>
      <el-form-item label="账号" prop="username">
        <el-input
          type="text"
          placeholder="请输入账号"
          v-model="form.username"
        />
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input
          type="password"
          placeholder="请输入密码"
          v-model="form.password"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" v-on:click="onsubmit('loginForm')"
          >登录</el-button
        >
      </el-form-item>
    </el-form>
    <el-dialog
      title="温馨提示"
      :visible.sync="dialogVisiable"
      width="30%"
      :before-close="handleClose"
    >
      <span>请输入账号和密码</span>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogVisible = false"
          >确定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: "Login",
  data() {
    return {
      form: {
        username: "",
        password: "",
      },
      //表单验证，需要在 el-form-item 元素中增加prop属性
      rules: {
        username: [
          { required: true, message: "账号不可为空", trigger: "blur" },
        ],
        password: [{ required: true, message: "密码不可为空", tigger: "blur" }],
      },
      //对话框显示和隐藏
      dialogVisible: false,
    };
  },
  methods: {
    onSubmit(formName) {
      //为表单绑定验证功能
      this.$refs[formName].validate((valid) => {
        if (valid) {
          //使用vue-router路由到指定界面，该方式称为编程式导航
          this.$router.push("/main");
        } else {
          this.dialogVisible = true;
          return false;
        }
      });
    },
  },
};
</script>
<style lang="scss" scoped>
.login-box {
  border: 1px solid #dcdfe6;
  width: 350px;
  margin: 180px auto;
  padding: 35px 35px 15px 35px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  box-shadow: 0 0 25px #909399;
}
.login-title {
  text-align: center;
  margin: 0 auto 40px auto;
  color: #303133;
}
</style>

<template>
  <div>
    <h1>首页</h1>
    <router-link to="/login">跳转到登录页面</router-link>
    <router-view />
  </div>
</template>
<script>
export default {
  name: "Main",
};
</script>
<style scoped>
</style>

//导入vue
import Vue from 'vue';
import VueRouter from 'vue-router';
//导入组件
import Main from "../components/Main";
import Login from "../components/Login";
//使用
Vue.use(VueRouter);
//导出
export default new VueRouter({
  routes: [
    {
      //首页
      path: '/main',
      component: Main
    },
    //  默认首页
    {
      path: '/',
      redirect: '/main'
    },
    //登录页
    {
      path: '/login',
      component: Login
    },
  ]
})

<template>
  <div id="app">
    <router-view/>
  </div>
</template>
<script>
  export default {
    name: 'App'
  }
</script>
<style>
  #app {
    font-family: 'Avenir', Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-align: center;
    color: #2c3e50;
    margin-top: 60px;
  }
</style>

import Vue from 'vue'
import App from './App'
import router from "./router"
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
Vue.use(router)
Vue.use(ElementUI)
/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  render: h => h(App)
})

npm run serve

# 卸载当前版本
npm uninstall sass-loader
npm uninstall node-sass
# 安装
sudo cnpm install sass-loader@7.3.1 --save-dev
sudo cnpm install node-sass@4.14.1