Vue中Vue router和axios的封装使用教程

npm install vue-router@4

// vue-router中提供3种的路由模式
import { createWebHistory, createRouter } from 'vue-router'
import { checktoken } from '../request/api';
const routes = [
  {
    path: '/',
    name: "home",
    component: () => import('../components/Pages/Home.vue'),
  },
  {
    path: '/login',
    name: 'login',
    component: () => import('../components/Pages/Login.vue'),
  }
]
const router = createRouter({
  // 路由的模式
  history: createWebHistory(),
  // 路由规则
  routes
})
//导航守卫 导航前做点操作
router.beforeEach(async (to, from, next) => {
  // 编写一个函数来检查 token 是否有效
  if (to.name == 'home' && await checkTokenValidity()) {
    // 如果进入首页且未认证，则重定向到登录页
    next({ name: 'login' });
  } else {
    // 其他情况允许通过
    next();
  }
});
async function checkTokenValidity() {
  // 获取 token
  const token = localStorage.getItem('token');
  if (token) {
    // 使用 ' ' 分割字符串
    const arr = token.split(' ');
    let tokenstr = arr[1];
    return await checktoken({ token: tokenstr })
  }
  return true
}
export default router

npm install axios

// 在http.js中引入axios
import axios from 'axios'; // 引入axios
import { ElMessage } from 'element-plus'
const config={
    // `url` 是用于请求的服务器 URL
   url: '/api',
   // `baseURL` 将自动加在 `url` 前面，除非 `url` 是一个绝对 URL。
   // 它可以通过设置一个 `baseURL` 便于为 axios 实例的方法传递相对 URL
   baseURL: 'http://localhost:56030/api',
   // `timeout` 指定请求超时的毫秒数(0 表示无超时时间)
   // 如果请求话费了超过 `timeout` 的时间，请求将被中断
   timeout: 10000,
 }
const requests = axios.create(config);
//请求拦截器（可以在请求发出去之前，做一些事情）
requests.interceptors.request.use((config) => {
    return config;
  });
  //响应拦截器（在数据返回之后，做一些事情）
  requests.interceptors.response.use(
    (res) => {
      return res.data;
    },
    (err) => {
        console.log(err);
        ElMessage.error(err.response.data)
    }
    )
export default requests;

import requests from "./http";  //引入二次封装的axios
export const login = (params)=>requests({url:'/Account/login ',method:'post',data:params});
export const checktoken = (params)=>requests({url:'/Account/checktoken ',method:'post',data:params});

<template>
  <el-card class="box-card">
    <el-text class="title" type="warning" size="large">Metadata科技屋</el-text>
    <div style="margin: 40px;"></div>
    <el-form label-position="top" label-width="100px" :model="formLabelAlign" style="max-width: 460px">
      <el-form-item label="账号">
        <el-input v-model="formLabelAlign.accountNumber" />
      </el-form-item>
      <el-form-item label="密码">
        <el-input v-model="formLabelAlign.password" type="password" />
      </el-form-item>
      <el-button class="loginbut" type="primary" @click="onSubmit">登录</el-button>
    </el-form>
  </el-card>
</template>
<script setup>
import { reactive } from 'vue'
import { login } from '../../request/api';
import { ElMessage } from 'element-plus'
import { useRouter } from 'vue-router';
const router = useRouter();
const formLabelAlign = reactive({
  accountNumber: 'admin',
  password: '123456'
})
const onSubmit = async () => {
  var token = await login(formLabelAlign)
  if (token) {
    // 存储 token    [Authorize(AuthenticationSchemes = "Bearer")]
    localStorage.setItem('token',"Bearer "+token);
    ElMessage({
      message: '登录成功',
      type: 'success',
    })
    // 字符串路径
    router.push('/');
  }
}
</script>
<style scoped>
.el-card {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.box-card {
  width: 480px;
  height: 320px;
}
.title {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
}
.loginbut {
  float: right;
}
</style>

import { useRouter } from 'vue-router';
const router = useRouter();
 // 字符串路径
router.push('/');

import { createApp } from 'vue'
// 图标和组件需要分开引入
import ElementPlus from 'element-plus';   // 引入 ElementPlus 组件
import 'element-plus/dist/index.css'
// Element Plus
import 'element-plus/theme-chalk/index.css'  // 引入 ElementPlus 组件样式
import 'element-plus/theme-chalk/dark/css-vars.css'
import { Edit } from '@element-plus/icons-vue'  // 按需引入 Icon 图标 
import  router  from './router/index'
import App from './App.vue'
const app =  createApp(App)
app.use(router)
app.component('Edit', Edit)
app.use(ElementPlus)  // 全局挂载 ElementPlus
app.mount('#app')

<script>
export default {
};
</script>
<template>
    <router-view></router-view>
</template>
<style scoped>
.common-layout
{
height: 100vh;
}
.el-container
{
  height: 100vh;
}
</style>