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  • axios请求requestBody和formData

    前言

    在vue的后台管理开发中,应需求,需要对信息做一个校验,需要将参数传递两份过去,一份防止在body中,一份防止在formdata中,axios请求会默认将参数放在formdata中进行发送。
    对前端而言其实都一样,无非就是参数的格式问题。
    对后端而言
    (form data)可以用request.getParameter(接收参数名)
    (request payload)用request.getParameter是接收不到值,必须用输入流获取,得到字符串在转json
    应需求有的接口是需要放在body中有的要放在formdata中,所以前端需要做一个灵活的处理,因为就算只是更改headers中的字段也会让人时时刻刻记得。所以最终我将请求文件封装如下:
    /**
     * @description 配置网络请求
     * @author luokaibin chaizhiyang
     */
    import axios                from 'axios'
    import { Message} from 'element-ui'
    import router               from '../router/permission'
    import Vue from 'vue'
    import VueCookies from 'vue-cookies'
    const moment = require('moment');
    const Base64 = require('js-base64').Base64;
    
    // loading框设置局部刷新,且所有请求完成后关闭loading框
    var loading;
    function startLoading() {
      loading = Vue.prototype.$loading({
        lock: true,
        text: "Loading...",
        target: document.querySelector('.loading-area')//设置加载动画区域
      });
    }
    function endLoading() {
      loading.close();
    }
    
    // 声明一个对象用于存储请求个数
    var needLoadingRequestCount = 0;
    function showFullScreenLoading() {
      if (needLoadingRequestCount === 0) {
        startLoading();
      }
      needLoadingRequestCount++;
    };
    function tryHideFullScreenLoading() {
      if (needLoadingRequestCount <= 0) return;
        needLoadingRequestCount--;
      if (needLoadingRequestCount === 0) {
        endLoading();
      }
    };
    // 请求拦截
    axios.interceptors.request.use(config => {
      let token = "";
      showFullScreenLoading();
      if(VueCookies.isKey('userinfo')) { 
        const USERINFO = VueCookies.get('userinfo');
        if(config.method == 'get') {
          token = Base64.encode(USERINFO.token + '|' + moment().utc().format('YYY-MM-DD HH:mm:ss' + '|' + JSON.stringify(config.params)));
          config.params.hospitalId = USERINFO.hospitalId;
        } else {
          token = Base64.encode(USERINFO.token + '|' + moment().utc().format('YYY-MM-DD HH:mm:ss' + '|' + JSON.stringify(config.data)));
          config.data.hospitalId = USERINFO.hospitalId;
        }
        let TOKENSTART = token.slice(0,10),
            TOKENEND = token.slice(10);
        token = TOKENEND + TOKENSTART;
        config.headers['token'] = token;
      }
      return config;
    }, err => {
      tryHideFullScreenLoading();
      Message.error({ message: '请求超时!' });
      return Promise.resolve(err);
    })
    // 响应拦截
    axios.interceptors.response.use(res => {
      tryHideFullScreenLoading();
      switch(res.data.code) {
        case 200:
        return res.data.result;
        case 401:
        router.push('/login');
        VueCookies.remove('userinfo');
        return Promise.reject(res);
        case 201:
        Message.error({ message: res.data.msg });
        return Promise.reject(res);
        default :
        return Promise.reject(res);
      }
    }, err => {
      tryHideFullScreenLoading();
      if(!err.response.status) {
        return false;
      }
      switch(err.response.status) {
        case 504:
        Message.error({ message: '服务器被吃了⊙﹏⊙∥' });
        break;
        case 404:
        Message.error({ message: '服务器被吃了⊙﹏⊙∥' });
        break;
        case 403:
        Message.error({ message: '权限不足,请联系管理员!' });
        break;
        default:
        return Promise.reject(err);
      }
    })
    axios.defaults.timeout = 300000;// 请求超时5fen
    // RequestBody export const postJsonRequest = (url, params) => { return axios({ method: 'post', url: url, data: params, headers: { 'Content-Type': 'application/json', }, }); }
    // formData export const postRequest
    = (url, params) => { return axios({ method: 'post', url: url, data: params, transformRequest: [function (data) { let ret = '' for (let it in data) { ret += encodeURIComponent(it) + '=' + encodeURIComponent(data[it]) + '&' } return ret }], headers: { 'Content-Type': 'application/x-www-form-urlencoded' } }); } export const getRequest = (url, data = '') => { return axios({ method: 'get', params: data, url: url, }); }
    Get请求的话是不需要进行设置的,因为get请求回默认将参数放在params中,post请求的话会有两个,所以我们这里讲post请求封装了两份。其他的东西的话大家不需要查看。
    由于笔者近期较忙,所以,随便抽了一下,日后整理将会更新
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  • 原文地址:https://www.cnblogs.com/bgwhite/p/9964864.html
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