python - 如何通过表单提交在 laravel 中运行 python 脚本？

Question

我正在尝试运行一个自动化脚本（python-selenium 脚本），该脚本在从客户端获取一些输入后从网站上抓取数据。我正在尝试使用表单发送凭据并处理它，然后使用 shell_exec 或 exec 或 symfony/process 库。到目前为止，没有什么对我有用。

这是我的表格 -

@extends('layouts.app')
@section('content')
    <div class="container">
        @include('includes.messages')
        <h1>Create Scraper</h1>
        {!! Form::open(['action' => 'ScraperController@store', 'method' => 'POST', 'novalidate' => 'novalidate']) !!}
            <div class="form-group">
                {{ Form::label('url', 'Search URL') }}
                {{ Form::text('url', '', ['class' => 'form-control', 'placeholder' => 'Search URL']) }}
            </div>

            <div class="form-group">
                {{ Form::label('email', 'Email') }}
                {{ Form::email('email', '', ['class' => 'form-control', 'placeholder' => 'Email']) }}
            </div>

            <div class="form-group">
                {{ Form::label('password', 'Password') }}
                {{ Form::password('password', ['class' => 'form-control', 'placeholder' => 'Password']) }}
            </div>

            {{ Form::submit('Submit', ['class' => 'btn btn-primary']) }}
        {!! Form::close() !!}
    </div>
@endsection

这是我的控制器 -

我已经用进程库尝试过它没有给出任何错误，没有响应立即执行下面的代码但刮板运行不成功

use Symfony\Component\Process\Process;
use Symfony\Component\Process\Exception\ProcessFailedException;

public function store(Request $request) {
    $this->validate($request, [
        'url' => 'required',
        'email' => 'required|email:rfc,dns',
        'password' => 'required'
    ]);

    $process = new Process(['C:\xampp\htdocs\scraper\public\lkscraper\venv\Scripts\python', 'C:\xampp\htdocs\scraper\public\lkscraper\lk.py']);
    $process->run();
    if (!$process->isSuccessful()) {
        throw new ProcessFailedException($process);
    }
    echo $process->getOutput();        
}

我还尝试了以下方法 - 我已经在我的机器中创建了所有全局依赖项并运行它。但在 laravel 中再次没有成功。但是相同的 shell_exec 运行良好，当在 laravel 项目之外作为单个文件运行时，我得到了所需的输出。

public function store(Request $request) {
    $this->validate($request, [
        'url' => 'required',
        'email' => 'required|email:rfc,dns',
        'password' => 'required'
    ]);

    $output = shell_exec("python C:\xampp\htdocs\scraper\public\lkscraper\lk.py");
    var_dump($output);       
}

当我在单独的 php 文件中运行以下内容时，它可以正常工作。但是在laravel里面它不起作用

$output = shell_exec("python C:\xampp\htdocs\scraper\public\lkscraper\lk.py");
var_dump($output);

请帮我解决这个问题。我究竟做错了什么！感谢您的时间

我得到的错误：

string(1418) "Traceback (most recent call last):
  File "C:\xampp\htdocs\scraper\lkscraper\venv\lib\site-packages\selenium\webdriver\common\service.py", line 72, in start
    self.process = subprocess.Popen(cmd, env=self.env,
  File "C:\Users\raman\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\raman\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 1307, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\xampp\htdocs\scraper/lkscraper/lk.py", line 15, in 
    browser = webdriver.Chrome('driver/chromedriver.exe')
  File "C:\xampp\htdocs\scraper\lkscraper\venv\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 73, in __init__
    self.service.start()
  File "C:\xampp\htdocs\scraper\lkscraper\venv\lib\site-packages\selenium\webdriver\common\service.py", line 81, in start
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: 'chromedriver.exe' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

标签： pythonphplaravelselenium-webdriverweb-scraping