微信小程序上传多图到服务器并获取返回的路径

//点击选择图片
 chooseimage:function(){
  var that = this;
  wx.chooseImage({
    count: 9, // 默认9 
   sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有 
   sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有 
   success: function(res) {
    that.setData({
     tempFilePaths: that.data.tempFilePaths.concat(res.tempFilePaths)//在已有的基础上进行拼接
    })
   }
  })
 },

 <image class="icon-image" background-size="contain" wx:for="{{tempFilePaths}}" src='{{item}}' 
 data-id='{{index}}'  bindtap='delete'></image>

 upload:function(){
  for (var i = 0; i < this.data.tempFilePaths.length; i++) {
   // console.log("000")
   this.upload_file(this.data.tempFilePaths[i])
  }
 },
 upload_file: function (filepath) {
  var that = this;
 wx.uploadFile({
  url: 'https://***********************/imgs',
  header: {
   'content-type': 'multipart/form-data'
  },
  filePath: filepath,
  name: 'file',
  formData: {
   file: filepath
  },
 success:function(res){
  that.setData({
   mes:JSON.parse(res.data),
   images: that.data.images.concat(JSON.parse(res.data).data.filePath)//把字符串解析成对象
  })
  // console.log(that.data.mes.data.filePath)
  // console.log(that.data.images.length + "**********")
  // wx.showToast({
  //  title: 'success',
  // })
 },
 fail: function (res) {
  wx.showToast({
   title: '图片加载失败',
  })
 }
 })
 }

 //点击选择图片
 chooseimage:function(){
  var that = this;
  wx.chooseImage({
    count: 9, // 默认9 
   sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有 
   sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有 
   success: function(res) {
    that.setData({
     tempFilePaths: that.data.tempFilePaths.concat(res.tempFilePaths)//在已有的基础上进行拼接
    })
    that.upload();
    that.setData({
     temp: that.data.tempFilePaths.length//用来解决 for 循环比 异步 快
    })
   }
  })
 },

upload:function(){
  for (var i = this.data.temp; i < this.data.tempFilePaths.length; i++) {
   // console.log("000")
   this.upload_file(this.data.tempFilePaths[i])
  }
 },

// pages/comment/cmment.js
const app = getApp()
Page({
 
 /**
  * 页面的初始数据
  */
 data: {
  mes:{},
  content:'',
  tempFilePaths:[],
   userInfo: {},
  hasUserInfo: false,
  canIUse: wx.canIUse('button.open-type.getUserInfo'),
  images:[],
  temp:0,
  infoId:'',
  sendtype:''
 },
 
 /**
  * 生命周期函数--监听页面加载
  */
 onLoad: function (options) {
  console.log(options.infoId+"infoID")
  this.setData({
   infoId: options.infoId,
   sendtype: options.sendtype
  }) 
 
 },
 /**
  * 页面上拉触底事件的处理函数
  */ 
 onReachBottom: function () {
 
 },
 confirmSubmit:function(e){
  
  console.log(e.detail.value)
 },
 
 //点击选择图片
 chooseimage:function(){
  var that = this;
  wx.chooseImage({
    count: 9, // 默认9 
   sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有 
   sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有 
   success: function(res) {
    that.setData({
     tempFilePaths: that.data.tempFilePaths.concat(res.tempFilePaths)//在已有的基础上进行拼接
    })
    that.upload();
    that.setData({
     temp: that.data.tempFilePaths.length//用来解决 for 循环比 异步 快
    })
   }
  })
 },
 //点击删除图片
 delete: function (e){
  var index = e.currentTarget.dataset.id;
  this.data.tempFilePaths.splice(index,1)
  //渲染数据
  this.setData({
   tempFilePaths: this.data.tempFilePaths
  })
 },
 //提交评论
 formBindsubmit: function (e) {
  // console.log(this.data.images.length + "*****");
  // for (var i = 0; i < this.data.images.length; i++){
  //  console.log(this.data.images[i]);
  // }
  console.log(this.data.infoId + "infoID不能用？")
  wx.request({
   url: 'https://*******/saveComments',
   method: 'POST',
   header: {
    'content-type': 'application/json',
    'user-token': 'OXJ*****',//usertoken
   },
   data: {
    relevantId: this.data.infoId,
    type: 1,//this.data.type,
    content:e.detail.value.content,
    images:this.data.images,
   },
   success: function (res) {
    if (res.statusCode = 200) {
     wx.showModal({
      title: '提示',
      content: '评论成功',
     })
     return;
    }
    else {
     wx.showModal({
      title: '提示',
      content: '评论失败',
     })
    }
   }
  })
  // wx.navigateTo({
  //  url: '../article/article"000")
   this.upload_file(this.data.tempFilePaths[i])
  }
 },
 upload_file: function (filepath) {
  var that = this;
 wx.uploadFile({
  url: 'https://********/fileupload/uploader/imgs',
  header: {
   'content-type': 'multipart/form-data'
  },
  filePath: filepath,
  name: 'file',
  formData: {
   file: filepath
  },
 success:function(res){
  that.setData({
   mes:JSON.parse(res.data),
   images: that.data.images.concat(JSON.parse(res.data).data.filePath)//把字符串解析成对象
  })
  // console.log(that.data.mes.data.filePath)
  // console.log(that.data.images.length + "**********")
  // wx.showToast({
  //  title: 'success',
  // })
 },
 fail: function (res) {
  wx.showToast({
   title: '图片加载失败',
  })
 }
 })
 }
})