桥梁保护与监控-开发进度（二）

新掌握的技能

layui文件上传&图片上传

解决方法如下：

#文件上传存放的文件夹, 值为非绝对路径时，相对于项目根目录
IMAGE_FOLDER  = 'static/photo/'

#model模型上传存放文件夹，值为非绝对路径时，相对于项目根目录
JSON_FOLDER='static/model/'

#生成无重复随机数
gen_rnd_filename = lambda :"%s%s" %(datetime.datetime.now().strftime('%Y%m%d%H%M%S'), str(random.randrange(1000, 10000)))
#文件名合法性验证
allowed_file = lambda filename: '.' in filename and filename.rsplit('.', 1)[1] in set(['png', 'jpg', 'jpeg', 'gif', 'bmp','gif'])

app.config.update(
    SECRET_KEY = os.urandom(24),
    # 上传文件夹
    UPLOAD_FOLDER = os.path.join(app.root_path, IMAGE_FOLDER),

    #model文件夹
    UPLOAD_JSONFOLDER=os.path.join(app.root_path,JSON_FOLDER),

    # 最大上传大小，当前16MB
    MAX_CONTENT_LENGTH = 16 * 1024 * 1024
)



#照片上传
@app.route('/photoupload', methods=['POST','OPTIONS'])
def photoupload():
    res = dict(code=-1, msg=None)
    f = request.files.get('file')
    if f and allowed_file(f.filename):
        filename = secure_filename(gen_rnd_filename() + "." + f.filename.split('.')[-1])  # 随机命名
        # 自动创建上传文件夹
        print(filename)
        if not os.path.exists(app.config['UPLOAD_FOLDER']):
            os.makedirs(app.config['UPLOAD_FOLDER'])
        # 保存图片
        f.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
        imgUrl = "../static/photo/"+filename
        print(imgUrl)
        res.update(code=0, data=dict(src=imgUrl))
    else:
        res.update(msg="Unsuccessfully obtained file or format is not allowed")

    return jsonify(res)

layui生成Tab页，完成相应的操作后，母页面自动刷新

if (data == "yes") {
                        //发异步，把数据提交给php
                        layer.alert("修改成功", {
                            icon: 6
                        },

                        function() {
                            // 获得frame索引
                            var index = parent.layer.getFrameIndex(window.name);
                            //关闭当前frame
                            parent.layer.close(index);
                            //刷新母页面
                            window.parent.location.reload();
                        });

                    }