小程序上传图片到七牛

Posted 2020-11-09 Blog - Liang Fengbo

小程序上传图片非常简单，利用好2个API：

wx.chooseImage

wx.uploadFile

/**
   * 上传图片
   */
  chooseImageUpload() {
    var that = this;
    wx.chooseImage({
      count: 1,
      sizeType: [‘original‘, ‘compressed‘],
      sourceType: [‘album‘, ‘camera‘],
      success: function (res) {
        that.tempFilePaths = res.tempFilePaths;
        that.uploadQiniu();
      }
    })
  },

注意点：

• header头要写
• token 一定要去获取七牛的token
• filePath是单个图片就写下标0，如果多图片就用for循环吧，不过上个函数wx.chooseImage.count要配置1以上
• url写https://upload-z2.qiniup.com

/**
   * 上传七牛返回key
   */
  uploadQiniu() {
    let token = this.uploadtoken.token;
    let tempFilePaths = this.tempFilePaths;
    var that = this;
    wx.uploadFile({
      url: ‘https://upload-z2.qiniup.com‘,
      name: ‘file‘,
      filePath: tempFilePaths[0],
      header: {
        "Content-Type": "multipart/form-data"
      },
      formData: {
        token: token,
      },
      success: function (res) {
        let data = JSON.parse(res.data)
        // to do ...
      },
      fail: function (res) {
        console.log(res)
      }
    })
  },

看到返回key就是成功啦！！