vue项目封装方法

封装网络请求，以及错误处理
import Vue from 'vue'
import axios from 'axios'
//错误处理
const errorCode =[
  '400','401',
];
const errorInfoArray = [
  {code:'200',title:'网络请求成功',info:'网络请求已成功'},
  {code:'400',title:'请求失败',info:'登录设备类型错误'}
];
//错误处理
let isErrorCode = function(code){
  for(var i=0;i<errorCode.length;i++){
    if( errorCode[i] == code ){
      return true;
    }
  }
  return false;
};
let errorTitle = function(code){
  for(var i=0;i<errorInfoArray.length;i++){
    if( errorInfoArray[i].code == code ){
      return errorInfoArray[i].title;
    }
  }
};
let errorInfo = function(code){
  for(var i=0;i<errorInfoArray.length;i++){
    if( errorInfoArray[i].code == code ){
      return errorInfoArray[i].info;
    }
  }
};

//默认配置
axios.default.timeout = 6000;
axios.default.responseType = 'json'
//axios.default.baseURL = "http://test.wulian.81dd.cn"//不起作用
axios.defaults.headers['Content-Type'] = 'application/json;charset=UTF-8';

axios.interceptors.request.use(function (config) {
  // 发送请求之前做些什么
  config.headers.token = sessionStorage.getItem("token");//请求头
  return config;
}, function (error) {
  // Do something with request error
  return Promise.reject(error);
});

// Add a response interceptor
axios.interceptors.response.use(function (response) {
  // Do something with response data
  console.log('相应数据',response);
  return response;
}, function (error) {
  // Do something with response error
  return Promise.reject(error);
});
Vue.prototype.$http = function(url,data){
  let promise = new Promise((resolve,reject)=>{
    axios.post(url,data).then((response)=>{
        console.log('请求成功',response.data);
        if(response.data && isErrorCode(response.data.code)){
          let title = errorTitle(response.data.code);
          let info = errorInfo(response.data.code);
        }
        resolve(response)
      })
      .catch((error)=>{
        console.log('请求失败',error)
        reject(error)
      })
  });
  console.log('promise.then',promise.then)
  console.log('promise.catch',promise.catch)
  return promise;
}

config文件中的index.js设置baseUrl

module.exports = {
  dev: {
    // Paths
    assetsSubDirectory: 'static',
    assetsPublicPath: './',
    proxyTable: {
      '/': {
        target: 'http://test.wulian.81dd.cn', //测试
        changeOrigin: true
      }
    },
}