for file in request.files.getlist('files'): filename = file.filename file.save(os.path.join(folder_name, filename))

这段代码是用来处理上传文件的。首先通过`request.files.getlist('files')`获取上传的文件列表，然后遍历列表中的每个文件，获取文件名并保存到指定的文件夹中。具体实现是通过调用`file.save()`方法来实现的，该方法需要传入文件保存的路径。在这个例子中，路径是通过`os.path.join()`方法来构建的，它将文件名和文件夹名拼接起来，形成完整的文件路径。

相关问题

@app.route('/restruct', methods=['POST']) def restruct(): dch = request.form['dch'] dch_folder = "restr" + dch count = 1 while os.path.exists(os.path.join('D:\cj', dch_folder)): dch_folder = "restr" + dch + "_" + str(count) count += 1 os.makedirs(os.path.join('D:\cj', dch_folder, 'photos')) os.makedirs(os.path.join('D:\cj', dch_folder, 'kmls')) os.makedirs(os.path.join('D:\cj', dch_folder, 'project')) photos_folder = os.path.join('D:\cj', dch_folder, 'photos') kmls_folder = os.path.join('D:\cj', dch_folder, 'kmls') project_folder = os.path.join('D:\cj', dch_folder, 'project') for file in request.files.getlist('files'): filename = file.filename file.save(os.path.join(photos_folder, filename)) dhs = request.form.getlist('dh') for dh in dhs: src_path = os.path.join(r'D:/911kml/', dh + '.xlsx.kml') dst_path = os.path.join(r'D:/cj', dch_folder, 'kmls/', dh + '.xlsx.kml') shutil.copy(src_path, dst_path) subprocess.Popen(["python", "restruct.py", dch, photos_folder, project_folder, kmls_folder])使用python3.6版本的websocket，将这段代码运行中的输出信息，实时发送给前端，给出server.py和client.py

server.py:

import asyncio
import websockets
import subprocess

async def echo(websocket, path):
    dch = await websocket.recv()
    dch_folder = "restr" + dch
    count = 1
    while os.path.exists(os.path.join('D:\cj', dch_folder)):
        dch_folder = "restr" + dch + "_" + str(count)
        count += 1
    os.makedirs(os.path.join('D:\cj', dch_folder, 'photos'))
    os.makedirs(os.path.join('D:\cj', dch_folder, 'kmls'))
    os.makedirs(os.path.join('D:\cj', dch_folder, 'project'))
    photos_folder = os.path.join('D:\cj', dch_folder, 'photos')
    kmls_folder = os.path.join('D:\cj', dch_folder, 'kmls')
    project_folder = os.path.join('D:\cj', dch_folder, 'project')
    async for file in websocket:
        filename = file.filename
        file.save(os.path.join(photos_folder, filename))
    dh = await websocket.recv()
    src_path = os.path.join(r'D:/911kml/', dh + '.xlsx.kml')
    dst_path = os.path.join(r'D:/cj', dch_folder, 'kmls/', dh + '.xlsx.kml')
    shutil.copy(src_path, dst_path)
    process = await asyncio.create_subprocess_exec(
        "python", "restruct.py", dch, photos_folder, project_folder, kmls_folder,
        stdout=asyncio.subprocess.PIPE
    )
    while True:
        output = await process.stdout.readline()
        if output == b'':
            break
        await websocket.send(output.decode())

async def main():
    async with websockets.serve(echo, "localhost", 8765):
        await asyncio.Future()  # run forever

if __name__ == "__main__":
    asyncio.run(main())

client.py:

import asyncio
import websockets
import aiohttp

async def upload_files(dch, files, dh):
    async with aiohttp.ClientSession() as session:
        async with session.ws_connect('ws://localhost:8765') as ws:
            await ws.send(dch)
            for file in files:
                await ws.send(file)
            await ws.send(dh)
            async for message in ws:
                print(message)

async def main():
    dch = 'example'
    files = ['example1.jpg', 'example2.jpg']
    dh = 'example'
    await upload_files(dch, files, dh)

if __name__ == "__main__":
    asyncio.run(main())

@app.route('/tiji', methods=['POST']) def tiji(): dch = request.form.get('dch') name = request.form.get('filename') print(name) folder_name = f"{dch}dianyun" if not os.path.exists(folder_name): os.mkdir(folder_name) for file in request.files.getlist('file'): filename = file.filename file.save(os.path.join(folder_name, filename)) dhs = request.form.getlist('dh') print(len(dhs)) for i in range(len(dhs)): print(dhs[i]) folder_path = os.path.join(folder_name) file_name = f"{name}.laz" if has_file(folder_path, file_name): else: return jsonify({"code": 200, "msg": "no_file"}) return jsonify({"code": 200, "msg": "done"}) 这段代码if下面写什么可以发送给前端消息，然后继续运行，最后执行return

如果你想在 `if` 分支中发送消息给前端后继续运行，你可以使用 SocketIO 的 `emit` 方法，并将 `broadcast=True` 作为参数传递给它，这样可以使消息发送给所有连接的客户端，而不仅仅是当前请求的客户端。然后，你可以在 `if` 分支外部执行其他代码，并在最后执行 `return` 返回最终的响应。

下面是修改后的代码示例：

from flask import Flask, request, jsonify
from flask_socketio import SocketIO, emit

app = Flask(__name__)
socketio = SocketIO(app)

@app.route('/tiji', methods=['POST'])
def tiji():
    dch = request.form.get('dch')
    name = request.form.get('filename')
    print(name)
    folder_name = f"{dch}dianyun"
    if not os.path.exists(folder_name):
        os.mkdir(folder_name)
    for file in request.files.getlist('file'):
        filename = file.filename
        file.save(os.path.join(folder_name, filename))
    dhs = request.form.getlist('dh')
    print(len(dhs))
    for i in range(len(dhs)):
        print(dhs[i])
    folder_path = os.path.join(folder_name)
    file_name = f"{name}.laz"
    if has_file(folder_path, file_name):
        socketio.emit('output', {"code": 200, "msg": "success"}, broadcast=True)  # 发送消息给前端

    else:
        return jsonify({"code": 200, "msg": "no_file"})
    
    # 在这里执行其他代码逻辑

    return jsonify({"code": 200, "msg": "done"})

if __name__ == '__main__':
    socketio.run(app)

在上述代码中，我们在 `if` 分支中使用 `socketio.emit` 方法发送消息给前端，并将 `broadcast=True` 作为参数传递给它，以确保消息发送给所有连接的客户端。然后，在 `if` 分支外部，你可以执行其他代码逻辑。最后，使用 `return` 返回最终的响应。

请确保已正确安装 Flask-SocketIO 扩展，并在启动应用程序时使用 `socketio.run(app)`。

希望这次能解决你的问题！如果还有其他疑问，请随时提问。