详解mpvue开发小程序小总结
(编辑:jimmy 日期: 2024/11/18 浏览:3 次 )
最近用mpvue开发了一个小程序,现总结一下碰见的问题及解决方案
1.项目中数据请求用到了fly.io
,封装成request.js
如下:
import wx from 'wx' import Fly from 'flyio' import store from '../store/index' const fly = new Fly() fly.config.baseURL = process.env.BASE_URL fly.config.timeout = 5000 //http 请求拦截器 fly.interceptors.request.use((config) => { wx.showNavigationBarLoading()//导航条加载动画 //给所有请求添加自定义header if (store.getters.accessToken) { config.headers['Authorization'] = `JWT ${store.getters.accessToken}` } config.headers['X-Tag'] = 'flyio' return config }) //http 响应拦截器 fly.interceptors.response.use((response) => { wx.hideNavigationBarLoading()//导航条加载动画 const res = response.data if (res.status === 0 && (res.errCode === 401 || res.errCode === 403)) { //跳转到登录页面 wx.redirectTo({ url: '/pages/welcome/main', }) } return res }, (err) => { wx.hideNavigationBarLoading()//导航条加载动画 //发生网络错误后会走到这里 return Promise.reject(err.response) }, ) export default fly
2.有关登录的处理:
这个项目中用到了一个登录页,用户登录态失效也会跳转到登录页login.js
import wx from 'wx' import { loginByCode } from '../api/weAppAuth' //登录接口 import store from '../store' /** * 登录 * @returns {Promise<any>} */ export function weAppLogin () { return new Promise((resolve, reject) => { // 先调用 wx.login 获取到 code wx.login({ success: (res) => { wx.getUserInfo({ lang: 'zh_CN', success: ({rawData, signature, encryptedData, iv, userInfo}) => { let data = { code: res.code, rawData, signature, encryptedData, iv, userInfo, } // console.log(JSON.stringify(data)) loginByCode(data).then(res => { // 该为我们后端的逻辑 若code > 0为登录成功,其他情况皆为异常 (视自身情况而定) if (res.status === 1) { // 保存用户信息相关操作 ... resolve(res) } else { reject(res) } }).catch(err => { reject(err) }) }, // 若获取不到用户信息 (最大可能是用户授权不允许,也有可能是网络请求失败,但该情况很少) fail: (err) => { reject(err) }, }) }, }) }) }
welcome.vue
<button class="default-btn " open-type="getUserInfo" @getuserinfo="onGotUserInfo" type="primary" > 微信登录 </button> methods: { //登录 onGotUserInfo ({mp}) { const {detail} = mp if (!detail.rawData) { Dialog({ title: '重新授权', message: '需要获取您的公开信息(昵称、头像等),请点击"微信登录"进行授权', confirmButtonText: '确定', confirmButtonColor: '#373737', }) } else { weAppLogin().then(res => { console.log(res) Toast({ type: 'success', message: '登录成功', selector: '#zan-toast-test', timeout:1000 }) setTimeout(() => { wx.switchTab({ url: '/pages/index/main', }) }, 1000) }).catch(err => { console.log(err) }) } }, },
3.支付方法封装成promise
import wx from 'wx' /** * 支付 * @param data * @returns {Promise<any>} */ export function wechatPay (data) { const {timeStamp, nonceStr, signType, paySign} = data return new Promise((resolve, reject) => { wx.requestPayment({ timeStamp: timeStamp, nonceStr: nonceStr, package: data.package, signType: signType, paySign: paySign, success: (res) => { resolve(res) }, fail: (err) => { reject(err) }, }) }) }
4.使用腾讯云存储上传图片
项目中使用了cos-wx-sdk-v5
封装upload.js方法:
const COS = require('../../static/js/cos-wx-sdk-v5') import fly from './request' export const Bucket = process.env.Bucket export const Region = process.env.Region // 文件扩展名提取 export function fileType (fileName) { return fileName.substring(fileName.lastIndexOf('.') + 1) } // 名称定义 export function path(id, type, fileType) { const date = new Date() const year = date.getFullYear() const month = date.getMonth() + 1 const day = date.getDate() var time = date.toTimeString() time = time.substr(0, 8) time = time.replace(/:/g, '-') return `/mobile/groups/${id}/${type}/` + (year + '-' + (month < 10 "htmlcode">//选择图片 chooseImage () { wx.chooseImage({ count: this.chooseImageNum, sizeType: ['original'], sourceType: ['album', 'camera'], success: (res) => { this.imageList = [...this.imageList, ...res.tempFilePaths] }, }) }, uploadImg (data, index) { return new Promise((resolve, reject) => { let filePath = data let fileName = path(this.id, 'test', fileType(filePath.substr(filePath.lastIndexOf('/') + 1))) + index cos.postObject({ Bucket: Bucket, Region: Region, Key: fileName, FilePath: filePath, }, (err, res) => { if (res.statusCode === 200) { let item = { imageUrl: res.Location, } this.data.imageList.push(item) resolve(res) } else { reject(err) } }) }) }, //上传图片 upload () { return new Promise((resolve, reject) => { //没有图片 if (this.imageList.length === 0) { let data = { statusCode: 200, } resolve(data) return } //有图片 let all = [] for (let i = 0; i < this.imageList.length; i++) { all.push(this.uploadImg(this.imageList[i], i)) } Promise.all(all).then(res => { resolve(res) }).catch(err => { reject(err) }) }) }, handleSubmit(){ this.upload().then(res=>{ //执行剩余步骤 }).catch(err=>{ console.log(err) }) }以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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