Vue中使用Ajax與後臺交互

1、下載依賴包

npm install --save axios

2、封裝 ajax 請求模塊

2.1 api/ajax.js

/*
ajax 請求函數模塊
 */
import axios from 'axios'

export default function ajax (url = '', data = {}, type = 'GET') {
  return new Promise(function (resolve, reject) {
    let promise

    if (type === 'GET') {
      let dataStr = ''
      Object.keys(data).forEach(key => {
        dataStr += key + '=' + data[key] + '&'
      })
      if (dataStr !== '') {
        dataStr = dataStr.substring(0, dataStr.lastIndexOf('&'))
        url = url + '?' + dataStr
      }
      promise = axios.get(url)
    } else {
      promise = axios.post(url, data)
    }

    promise.then(response => {
      resolve(response.data)
    }).catch(error => {
      reject(error)
    })
  })
}

2.2 api/index.js

/*
與後臺交互模塊
 */
import ajax from './ajax'

/**
 * 根據經緯度獲取位置詳情
 */
export const reqAddress = geohash => ajax('/api/position/' + geohash)

/**
 * 獲取食品分類列表
 */
export const reqCategorys = () => ajax('/api/index_category')

/**
 * 根據經緯度獲取商鋪列表
 */
export const reqShops = ({longitude, latitude}) => ajax('/api/shops/', {longitude, latitude})

/**
 * 獲取一次性驗證碼
 */
export const reqCaptcha = geohash => ajax('/api/position/' + geohash)

/**
 * 用戶名密碼登錄
 */
export const reqPwdLogin = (name, pwd, captcha) => ajax('/api/login_pwd', {name, pwd, captcha}, 'POST')

/**
 * 發送短信驗證碼
 */
export const reqSendCode = phone => ajax('/api/sendcode' + {phone})

/**
 * 手機號驗證碼登錄
 */
export const reqSmsLogin = (phone, code) => ajax('/api/logon_sms/', {phone, code}, 'POST')

/**
 * 根據會話獲取用戶信息
 */
export const reqUser = () => ajax('/api/userinfo')

/**
 * 用戶登出
 */
export const reqLogout = () => ajax('/api/logout')

3、配置代理

proxyTable: {
    '/api': { // 匹配全部以 '/api' 開頭的請求路徑
        target: 'http://localhost:4000', // 代理目標的基礎路徑
        changeOrigin: true, // 支持跨域
        pathRewrite: { // 重寫路徑：去掉路徑中開頭的'/api'
            '^/api': ''
        }
    }
}