1. 使用vue-cli搭建项目

cnpm install -g vue-cli

vue init webpack

image.png

2. 安装axios

npm install --save axios  vue-axios

页面导入： import axios from 'axios'
创建api.js

import axios from 'axios'
import vue from 'vue'

axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded'

// 请求拦截器
axios.interceptors.request.use(function(config) {
    return config;
  }, function(error) {
    return Promise.reject(error);
  })
  // 响应拦截器
axios.interceptors.response.use(function(response) {
  return response;
}, function(error) {
  return Promise.reject(error);
})

// 封装axios的get请求
export function GET(url, params) {
    return new Promise((resolve, reject) => {
      axios.get(url, params)
        .then(response => {
          resolve(response.data);
        })
        .catch((error) => {
          reject(error);
        })
    })
}


// 封装axios的post请求
export function POST(url, params) {
    return new Promise((resolve, reject) => {
      axios.post(url, params)
        .then(response => {
          resolve(response.data);
        })
        .catch((error) => {
          reject(error);
        })
    })
}

// 封装axios的put请求
export function PUT(url, params) {
    return new Promise((resolve, reject) => {
      axios.put(url, params)
        .then(response => {
          resolve(response.data);
        })
        .catch((error) => {
          reject(error);
        })
    })
}

// 封装axios的delete请求
export function DELETE(url, params) {
    return new Promise((resolve, reject) => {
      axios.delete(url, params)
        .then(response => {
          resolve(response.data);
        })
        .catch((error) => {
          reject(error);
        })
    })
}

export default {
  GET_list(url, params) {
    return GET(url, params);
  }
}

安装json-server

npm install json-server -g
 json-server db.json --port 8080

axios配置

proxyTable: {
      '/api/': {
        target: 'http://localhost:3003', //将http://localhost:3003映射到/api
        changeOrigin: true,   //是否跨域
        pathRewrite: { 
          '^/api': '',   // 因为在 ajax 的 url 中加了前缀 '/api'，而原本的接口是没有这个前缀的,所以需要通过 pathRewrite 来重写地址，将前缀 '/api' 转为 '/'
        }
      }
    },

<script>
import api from './../axios/api.js'
import NewsCell from './NewsCell.vue'

export default {
  name: 'index',
  data () {
    return {
      newsListShow: [],
    }
  },
  components: {
    NewsCell
  },
  created() {
    this.setNewsApi();
  },
  methods:{
    setNewsApi: function() {
      api.JH_news('/news/index', 'type=top&key=123456')
      .then(res => {
        console.log(res);
        this.newsListShow = res.articles;
      });
    },
  }
}
</script>