1 页面表单


2 后台逻辑
def _upload_action(self):
    if self.request.files:
      upload_path = "/home/wangpei/demo/statics/upload/img"
      file_metas = self.request.files['upload-pic']
      for meta in file_metas:
        filename = meta['filename']
        str = ''.join([self.current_user,filename])
        str_md5 = hashlib.md5(str).hexdigest()
        img_name = str_md5[0:16]+'.jpg'
        filepath = os.path.join(upload_path,img_name)
        with open (filepath,'wb') as up:
          up.write(meta['body'])
        self.db.execute("UPDATE user SET pic=%s WHERE username=%s",img_name,self.current_user)
      self.redirect('/setting/basic')

3 自动提交js
$(function(){
  $('#upload-pic').change(function(){
  $('#upload-pic-form').submit();
});
});

4 css
.change-pic {
  margin-bottom: 0px;
  margin-top: -50px;
  margin-left: 250px;
  height: 30px;
  width: 90px;
  line-height: 30px;
  text-align: center;
  font-size: 14px;
  cursor: pointer;
  border-top-width: 1px;
  border-right-width: 1px;
  border-bottom-width: 1px;
  border-left-width: 1px;
  border-top-style: solid;
  border-right-style: solid;
  border-bottom-style: solid;
  border-left-style: solid;
  border-top-color: green;
  border-right-color: green;
  border-bottom-color: green;
  border-left-color: green;
  -moz-border-left-color: none;
  -moz-border-top-color: none;
  -moz-border-right-color: none;
  -moz-border-bottom-color: none;
  border-image-source: none;
  border-image-slice: none;
  border-image-width: 1 1 1 1;
  border-image-outset: 0 0 0 0;
  border-image-repeat: stretch stretch;
  border-top-left-radius: 50px;
  border-top-right-radius: 50px;
  border-bottom-left-radius: 50px;
  border-bottom-right-radius: 50px;
}

.upload-pic {
  opacity: 0;
  position: absolute;
  display: block !important;
  cursor: pointer;
  width: 90px;
}