axios拦截器、ElementUI组件的使用方法

import axios from "axios";
//1. 创建axios的实例，配置基础路径
const axiosInstance = axios.create({
    baseURL: 'http://localhost:8089',
    timeout: 5000
})
//2. 定义请求拦截器:给所有请求都带上token
axiosInstance.interceptors.request.use((req)=>{
    let token = sessionStorage.getItem('Auth') //获取页面存储中的token信息
    if(token){ //若token存在
        req.headers['Auth'] = token
    }
    return req;
},(err)=>{
    return Promise.reject(err)
})
//3.响应拦截器：对服务器响应给客户端的数据进行统一的处理
axiosInstance.interceptors.response.use((res)=>{
    //1.对响应数据进行处理
    let result = res.data
    let code = result.code
    if (code == 200){
        return result
    }else{
        return Promise.reject(result)
    }
},(err)=>{
    return Promise.reject(err)
})
export default axiosInstance

import ElementUI from ‘element-ui' //导入element-ui库
import ‘element-ui/lib/theme-chalk/index.CSS' //导入element-ui的样式文件
 
Vue.use(ElementUI)

//1.1 按钮的类型    
    <el-button>普通按钮</el-button>
    <el-button type="primary">Primary按钮</el-button>
    <el-button type="info">Info按钮</el-button>
    <el-button type="success">Success</el-button>
    <el-button type="warning">Warning</el-button>
    <el-button type="danger">Danger</el-button>
//1.2 带边框的按钮(鼠标悬浮效果)
    <el-button plain>普通按钮</el-button>
    <el-button type="primary" plain>Primary按钮</el-button>
    <el-button type="info" plain>Info按钮</el-button>
    <el-button type="success" plain>Success</el-button>
    <el-button type="warning" plain>Warning</el-button>
    <el-button type="danger" plain>Danger</el-button>
//1.3 圆角按钮
    <el-button round>普通按钮</el-button>
    <el-button type="primary" round>Primary按钮</el-button>
    <el-button type="info" round>Info按钮</el-button>
    <el-button type="success" round>Success</el-button>
    <el-button type="warning" round>Warning</el-button>
    <el-button type="danger" round>Danger</el-button>
//1.4 带图标的圆形按钮
    <el-button icon="el-icon-search" circle></el-button>
    <el-button type="primary" icon="el-icon-edit" circle></el-button>
    <el-button type="info" icon="el-icon-delete" circle></el-button>
//1.5 按钮不可用：disabled
//1.6 文字按钮：type='text'
//1.7 按钮组：
    <el-button-group>
      <el-button type="primary" icon="el-icon-arrow-left">上一个</el-button>
      <el-button type="primary">下一个<i class="el-icon-arrow-right el-icon--right"></i></el-button>
    </el-button-group>
//1.8 加载中按钮：设置loading属性
   <el-button type="primary" :loading="true">加载中</el-button>
//1.9 按钮的尺寸：设置按钮的size属性：medium(中等)、small(小型)、mini(超小)
        <el-button>默认按钮</el-button>
        <el-button size="medium">中型按钮</el-button>
        <el-button size="small">小型按钮</el-button>
        <el-button size="mini">超小按钮</el-button>

        icon:图标
        <el-button icon="el-icon-search" circle></el-button>
        <el-button icon="el-icon-edit" circle></el-button>
        <el-button icon="el-icon-remove" circle></el-button>
        <el-button icon="el-icon-delete" circle></el-button>
        <el-button icon="el-icon-user" circle></el-button>