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！！
小程序上传图片到七牛
原文地址：https://www.cnblogs.com/liangfengbo/p/9117718.html