Verwenden Sie das WeChat-Applet, um die Funktion zum Hochladen von Dateien zu implementieren

wx.chooseImage({
  count: 1,
  sizeType: ['original', 'compressed'],
  sourceType: ['album', 'camera'],
  success(res) {
    //res.tempFilePaths是用户选择的文件的临时路径
    const tempFilePaths = res.tempFilePaths
    console.log(tempFilePaths)
  }
})

wx.uploadFile({
  url: 'https://example.weixin.qq.com/upload', // 上传文件的服务端接口地址（注意: 必须使用https协议）
  filePath: tempFilePaths[0],
  name: 'file',
  header: {
    "Content-Type": "multipart/form-data",
  },
  success(res) {
    //上传成功后的回调处理
    console.log(res.data)
  },
  fail(res) {
    console.log(res)
  }
})

Page({
  data: {
    tempFilePaths: ''
  },
  chooseImage() {
    wx.chooseImage({
      count: 1,
      sizeType: ['original', 'compressed'],
      sourceType: ['album', 'camera'],
      success: (res) => {
        const tempFilePaths = res.tempFilePaths
        this.setData({
          tempFilePaths
        })
        this.handleUploadFile()
      }
    })
  },
  
  handleUploadFile() {
    wx.showLoading({
      title: '上传中...',
      mask: true
    })
    wx.uploadFile({
      url: 'https://example.weixin.qq.com/upload', 
      filePath: this.data.tempFilePaths[0],
      name: 'file',
      header: {
        "Content-Type": "multipart/form-data",
      },
      success: (res) => {
        wx.hideLoading()
        const data = JSON.parse(res.data)
        //上传成功后的处理
        console.log(data)
      },
      fail: res => {
        wx.hideLoading()
        console.log(res)
      }
    })
  }
})