const that = this; request({ url: 'XXXXX', method: 'GET', responseType: 'arraybuffer', success: function(res) { const base64 = wx.arrayBufferToBase64(res); that.setData({ userImageBase64: `data:image/jpg;base64,${base64}` }); } });
wxml展示图片
<image src='{{userImageBase64}}' style='width: 100rpx; height: 100rpx;' />
wx.chooseImage({ success (res) { // tempFilePath可以作为img标签的src属性显示图片 const tempFilePaths = res.tempFilePaths; const fileManager = wx.getFileSystemManager(); const base64 = fileManager.readFileSync(tempFilePaths[0], 'base64'); console.log('=============================', base64); }, fail () { wx.showToast({ title: '获取图片失败', icon: 'success', duration: 2000 }) } })
wx.chooseImage:获取本地图片
wx.getFileSystemManager:创建文件管理类
readFileSync:读取本地文件,直接得到base64