vue-cli3.x中使用axios发送请求,配合webpack中的devServer编写本地mock数据接口(get/post/put/delete)

手把手式笔记

Axios配置

1. 安装 axios

npm install axios

1. main.js同级目录新建axios配置文件setaxios.js

import axios from 'axios'
// import store from './store' //vuex
// import router from './router' //路由
export default function setAxios() {
    //拦截request请求
    axios.interceptors.request.use(
        config=>{
            console.log(config.data);
            return config;
        }
    )
    //拦截response回调
    axios.interceptors.response.use(
        response=>{
            if(response.status===200){
                const data=response.data
                // if (data.code === 400){
                //     //登录过期,权限不足
                //     console.warn("登陆过期");
                //     //清除token
                //     store.commit('setToken','')
                //     window.localStorage.removeItem('token')
                //     //跳转登录
                //     router.replace({
                //         path:"/login"
                //     })
                // }
                return data;
            }
            return response;
        }
    )
}

1. main.js中引入axios与其配置文件

import axios from 'axios'
import setaxios from './setaxios'
//Vue全局挂载axios
Vue.prototype.$http=axios
//设置baseUrl
axios.defaults.baseURL = '/api'

devServer中配置本地mock数据接口(vue.config.js文件中)参考webpack中文文档

module.exports = {
    publicPath: './',
    outputDir: 'dist',
    assetsDir: 'static',
    configureWebpack: {
        devServer: {
            contentBase: './build',//项目基本访问目录
            host: 'localhost',//服务器ip地址
            port: 8088,//端口
            open: true, //自动打开页面
            hot: true,//模块热替换
            hotOnly: true,//只有热更新不会刷新页面
            //mock数据接口部分 关键部分
            before(app) {
                const bodyParser = require('body-parser')
                app.use(bodyParser.json())  //通过bodyParser获取req.body）
                
                /**
                *   testGet
                */
                app.get('/api/test/get',(req,resp)=>{
                    console.log(req.query);
                    resp.json({
                        "code":111,
                        "msg":"get测试成功"
                    })
                })
                /**
                 * testPost
                 */
                app.post('/api/test/post', (req, resp) => {
                    console.log(req.body);
                    resp.json({
                        "code": 123,
                        "msg": "post测试成功"
                    })
                })
                /**
                 * testPut
                 */
                app.put('/api/test/put', (req, resp) => {
                    console.log(req.body)
                    resp.json({
                        "code": 123,
                        "msg": "put测试成功"
                    })
                })
                /**
                 * testDelete
                 */
                app.delete("/api/test/delete",(req,resp)=>{
                    console.log(req.body);
                    resp.json({
                        "code":666,
                        "msg":"delete测试成功"
                    })
                })
            }
        }
    }
}

通过上述配置操作即可完成本地mock数据接口编写,接下来是axios发送http请求测试示例

restful风格接口axios发送请求示例 参考axios中文文档

  methods: {
    sendGet: function() {
      this.$http
        .get("/test/get", {
          params: {
            param1: "get字符串",
            param2: 13131
          }
        })
        .then(res => {
          console.log(res);
        });
    },
    sendPost: function() {
      this.$http
        .post("/test/post", {
          param1: "post字符串",
          param2: 13131
        })
        .then(res => {
          console.log(res);
        });
    },
    sendPut: function() {
      this.$http
        .put("/test/put", {
          param1: "put字符串",
          param2: 13131
        })
        .then(res => {
          console.log(res);
        })
        .catch(err => {
          console.log(err);
        });
    },
    sendDelete: function() {
      this.$http
        .delete("/test/delete", {
          data: {
            param1: "delete字符串",
            param2: 13131
          }
        })
        .then(res => {
          console.log(res);
        })
        .catch(err => {
          console.log(err);
        });
    }
  }

完整测试demo(Test.vue)

<template>
  <div>
    <h2>HTTP-Request</h2>
    <button @click="sendGet()">GET</button>
    <span>&emsp;&emsp;</span>
    <button @click="sendPost()">POST</button>
    <span>&emsp;&emsp;</span>
    <button @click="sendPut()">PUT</button>
    <span>&emsp;&emsp;</span>
    <button @click="sendDelete()">DELETE</button>
    <hr />
  </div>
</template>
<script>
export default {
  name: "testPage",
  data() {
    return {};
  },
  methods: {
    sendGet: function() {
      this.$http
        .get("/test/get", {
          params: {
            param1: "get字符串",
            param2: 13131
          }
        })
        .then(res => {
          console.log(res);
        });
    },
    sendPost: function() {
      this.$http
        .post("/test/post", {
          param1: "post字符串",
          param2: 13131
        })
        .then(res => {
          console.log(res);
        });
    },
    sendPut: function() {
      this.$http
        .put("/test/put", {
          param1: "put字符串",
          param2: 13131
        })
        .then(res => {
          console.log(res);
        })
        .catch(err => {
          console.log(err);
        });
    },
    sendDelete: function() {
      this.$http
        .delete("/test/delete", {
          data: {
            param1: "delete字符串",
            param2: 13131
          }
        })
        .then(res => {
          console.log(res);
        })
        .catch(err => {
          console.log(err);
        });
    }
  }
};
</script>

示例效果图

参考文档

webpack中文文档

Axios中文文档

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