Laravel 采坑

2017年12月22日17:40:03

版本5.4.X

一下是可能会遇到的坑

1，必须的写路由转发才能访问控制器，当然你可以自动路由访问，但是需要些匹配规则，其实还是转发了

2，Laravel 做计划任务的时候坑真的好多，比如不能直接跨控制器访问，web的是web的路由，console是它自己的，所以你的功能和逻辑代码必须在Repository或者service里面，不然你懂的，做好逻辑代码分离

官方文档只有用过的才能看得懂，我很无奈

完整流程

app\Console\Commands下建立你的任务文件

SpiderTask.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
//use Illuminate\Support\Facades\Redis;
use App\Repositories\SpiderRepository;//具体逻辑代码

class SpiderTask extends Command {

    protected $taskserver;

    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = ‘SpiderTask‘;

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = ‘spider every one hour crawl data‘;
    protected $spider;

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct() {

        parent::__construct();
        $this->spider = new SpiderRepository();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle() {
        $this->spider->do_all();//具体执行地方
    }

}

然后注册到Kernel.php

<?php

namespace App\Console;

use Illuminate\Console\Scheduling\Schedule;
use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
use App\Repositories\SpiderRepository;//我的具体逻辑代码地方

class Kernel extends ConsoleKernel {

    /**
     * The Artisan commands provided by your application.
     *
     * @var array
     */
    protected $commands = [
        //
        ‘App\Console\Commands\SpiderTask‘, //必须
    ];

    /**
     * Define the application‘s command schedule.
     *
     * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
     * @return void
     */
    protected function schedule(Schedule $schedule) {
//        $schedule->call(function () {
//            $Spider = new SpiderRepository();
//            $Spider->do_all();
//        })->daily();
        $schedule->command(‘SpiderTask‘)->daily();//两种方法都可以，建议第二种，逻辑更清晰
    }

    /**
     * Register the Closure based commands for the application.
     *
     * @return void
     */
    protected function commands() {
        require base_path(‘routes/console.php‘);
    }

}

注意：

你要测试你的代码逻辑有没有错误

最好在Linux下测试，因为windows好多问题

在代码根目录，如果命令没有到全局，使用完整路径

php artisan schedule:run

everyMinute才会实时运行，可以看到报错

http://laravelacademy.org/post/6931.html 官方文档

<?php

namespace App\Repositories;

use App\Models\Spider;
//use phpspider\core\phpspider;
use phpspider\core\requests;
use phpspider\core\selector;

class SpiderRepository {

    use BaseRepository;

    protected $model;

    /**
     * ActivityRepository constructor.
     * @param Activity $activity
     */
    public function __construct() {
        $this->model = new Spider();
    }

    public function do_all() {
        $this->cjysjs();
        $this->shysjs();
        $this->nchn();
        $this->ltbj();
    }

    //长江有色金属
    public function cjysjs() {
        $html = requests::get(‘http://www.ccmn.cn/‘);
        $data = selector::select($html, "#40288092327140f601327141c0560001", "css");
        $data1 = selector::select($data, "tr", "css");
        array_shift($data1);

        $array = array();
        if (!empty($data1) && is_array($data1)) {
            foreach ($data1 as $k => &$v) {
                $data2 = selector::select($v, "td", "css");
                foreach ($data2 as $kk => &$vv) {
                    $vv = str_replace(‘
‘, ‘‘, $vv);
                    $vv = str_replace(array("\r\n", "\r", "\n"), "", $vv);
                    $vv = trim($vv);
                }
                $data2[‘3‘] = selector::select($data2[‘3‘], "font", "css");
                unset($data2[‘6‘]);
                $array[] = $data2;
            }

            if (empty($array)) {
                $info = date("Y-m-d H:i:s", time()) . ‘:长江有色金属抓取失败！‘;
                Log::info($info);
            }
            $name = ‘cjysjs‘;
            $_data = [];
            if (!empty($array) && is_array($array)) {
                $_data[‘value‘] = json_encode($array);
                $_data[‘crawl_time‘] = time();

                $count = $this->getData($name);
                if (empty($count)) {
                    //增加
                    $_data[‘name‘] = $name;
                    $result = $this->saveData(null, $_data);
                } else {
                    //更新
                    $_data[‘name‘] = $name;
                    $result = $this->saveData($name, $_data);
                }
            }
        }
    }

 public function saveData($name = null, $data = null) {
        return $this->model->updateOrCreate([‘name‘ => $name], $data);
    }

    public function getData($name) {
        return $this->model->where(‘name‘, $name)->count();
    }

}

3，