axios 请求二次封装

/**
 * 封装get方法
 * @param url
 * @param data
 * @returns {Promise}
 */

export function get(url, params) {
  return new Promise((resolve, reject) => {
    axios.get(url, {
        params: params
      })
      .then(response => {
        resolve(response.data);
      })
      .catch(err => {
        reject(err)
      })
  })
}


/**
 * 封装post请求
 * @param url
 * @param params
 * @returns {Promise}
 */

//  Form Data
//  headers: {
//    "Content-Type": 'application/x-www-form-urlencoded; charset=UTF-8'
//  }

// Form Data   Request payload
//当headers为 json时是 request 方式发送请求    但是如果你们的后台是formData的方式接口 就传一个header进来 就可以 formData  需要qs序列化
//因为我们后台是json接受的比较多 所以json在我这里是默认  可以根据自己的情况修改   这个需要json转字符串不然是乱码的

export function post(url, params = {}, headers) {
  return new Promise((resolve, reject) => {
    if (headers == undefined) {
      axios.post(url, JSON.stringify(params), {
          headers: {
            "Content-Type": "application/json;charset=UTF-8"
          }
        })
        .then(res => {
          resolve(res.data);
        })
        .catch(err => {
          reject(err.data)
        })
    } else {
      axios.post(url, QS.stringify(params), headers)
        .then(res => {
          resolve(res.data);
        })
        .catch(err => {
          reject(err.data)
        })
    }

  });
}

/**
 * 封装patch请求
 * @param url
 * @param data
 * @returns {Promise}
 */

export function patch(url, data = {}) {
  return new Promise((resolve, reject) => {
    axios.patch(url, data)
      .then(response => {
        resolve(response.data);
      }, err => {
        reject(err)
      })
  })
}

/**
 * 封装put请求
 * @param url
 * @param data
 * @returns {Promise}
 */

export function put(url, data = {}) {
  return new Promise((resolve, reject) => {
    axios.put(url, data)
      .then(response => {
        resolve(response.data);
      }, err => {
        reject(err)
      })
  })
}

main.js中 

import {
  post,
  get,
  patch,
  put,
} from './assets/utils/http'


//定义全局变量
Vue.prototype.$post = post;
Vue.prototype.$get = get;
Vue.prototype.$patch = patch;
Vue.prototype.$put = put;

 使用

this.$get("/role/getAllRole",{}).then(res => {});

this.$post("/judge/editJudgeInfoRole", {
        oid: this.rowData.oid,
        roleid: this.roleid
      }).then(res => {});

拦截

全部代码

import axios from 'axios'
import QS from "qs"
import store from "@/store/index"
import router from '@/router/index'
import { mapState, mapMutations } from "vuex";
import {
  Message
} from 'element-ui';
axios.defaults.timeout = 10000;
axios.defaults.baseURL = process.env.API_ROOT;

axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8';
axios.defaults.headers.common['Authorization'] = store.state.token ? store.state.token : localStorage.token;

axios.interceptors.request.use(
  config => {
    config.headers = {
      'Authorization': store.state.token ? store.state.token : localStorage.token
    }
    return config;
  },
  error => {
    return Promise.reject(err);
  }
);


//http response 拦截器
axios.interceptors.response.use(
  response => {
    if(response.data.code != 0){
      Message.error({
        message:response.data.msg,
      })
      if (response.data.code == 40001) {
        setTimeout(() => {
          localStorage.token = '';
          this.setToken('');
          router.replace({
            path: '/login'
          })
        }, 1500);
      }
    }
    return response;

  },
  error => {
    return Promise.reject(error)
  }
)