服务端代码
@app.route('/upFile',methods=["POST"])
def upFile():
imgName=""
# 接收二进制文件流图片
uploaded_file = request.files['file']
if uploaded_file.filename != '':
filename = request.form['filename']
print('filename',filename)
uploaded_file.save("./"+filename)
return {
"code":200,
"data":filename,
"msg":"test"
}
小程序上传代码
wx.uploadFile({
url: "https://xxx.com/upFile",
filePath: filePath,
name: "file",
formData: {
filename: "xxx.png",
},
success(res) {
const data = res.data;
console.log(`上传文件流成功`, res);
},
fail: (err) => {
console.log(`上传文件流失败`, err);
},
});
服务端代码
from flask import send_file
@app.route('/getFile', methods=['GET'])
def get_file():
filename = request.args.get("filename")
print("filename",filename)
filePath="./"+filename
return send_file(filePath)
微信小程序
wx.downloadFile({
url: `https://xxx.com/getFile?filename=${filename}`,
success(res) {
console.log(`文件下载成功`, res,res.tempFilePath);
},
fail: (err) => {
console.log(`文件下载失败`, err);
},
});
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图片转base64体积会增加33.3%左右
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img标签使用base64,字节太大时渲染会影响性能