組件
只提供單一功能,不和其他功能產(chǎn)生耦合
復用性強,一般放在公共模塊,別的模塊都可以使用
注意:
1.簡單的功能,自己封裝一個組件,不要使用第三方.第三方組件的代碼冗余,學習成本,掌控程度都沒有自己寫好.
2.使用合適的第三方組件,可以節(jié)約大量時間
3.結合業(yè)務提前做好設計,例如使用策略模式.
4.盡量不要直接使用組件,自己在封裝一次,因為組件是可能更換,面向功能開發(fā),
一,支付組件
composer require riverslei/payment
很強大,支持支付寶,微信,PC支付,APP支付,公眾號支付,掃描支付等等.
新建pay.php

use Payment\Common\PayException;
use Payment\Client\Charge;
use Payment\Client\Refund;
use Payment\Client\Transfer;
/**
 *
 * @param object    $payData      訂單數(shù)據(jù)
 * @param string    $type      支付類型
 */
public function payOrder($payData, $type='aliconfig')
{
    $Config = config($type);//獲取配置信息
    try {
        $str = Charge::run($type, $Config, $payData);
    } catch (PayException $e) {
        $msg = $e->errorMessage();
        throw new \Exception($msg);
    }
    return $str;
}

二.云存儲
composer require qiniu/php-sdk
核心代碼;默認使用七牛云存儲

public function __construct($type='qiniu')
{
    $config = Config::get($type)
    $accessKey = $this->config['accessKey'];
    $secretKey = $this->config['secretKey'];
    //初始化Auth狀態(tài)：
  $this->auth = new Auth($accessKey, $secretKey);
}

三,消息通知
極光消息通知
composer require jpush/jpush
核心代碼同上,使用策略模式,加載不同的配置文件,
消息通知是可能更換的
四,excel導入導出

namespace app\common\service;
class Phpexcel{
    public function import_excel($filename){
        // 判斷文件是什么格式
         $file=ROOT_PATH.'runtime'. DS .$filename;
        //$file=ROOT_PATH.'a.xlsx';

        $type = pathinfo($file);
        $type = strtolower($type["extension"]);
        if($type==='xls'){
            $type='Excel5';
        }else{
            $type='Excel2007';
        }

        ini_set('max_execution_time', '0');
        Vendor('Classes.PHPExcel');
        // 判斷使用哪種格式
        $objReader = \PHPExcel_IOFactory::createReader($type);
        $objPHPExcel = $objReader->load($file);
        $sheet = $objPHPExcel->getSheet(0);
        // 取得總行數(shù)
        $highestRow = $sheet->getHighestRow();

        // 取得總列數(shù)
        $highestColumn = $sheet->getHighestColumn();
        ++$highestColumn;
       //循環(huán)讀取excel文件,讀取一條,插入一條
        $data=array();
        //從第二行開始讀取數(shù)據(jù)
        for($j=2;$j<=$highestRow;$j++){
            //從A列讀取數(shù)據(jù)
            for($k='A';$k!=$highestColumn;++$k){
                // 讀取單元格
                $data[$j][]=$objPHPExcel->getActiveSheet()->getCell("$k$j")->getValue();
            }
        }
        //die;
        return $data;
    }

    public function create($data=[],$filename='simple.xls'){

        ini_set('max_execution_time', '0');
        Vendor('Classes.PHPExcel');
        $filename=str_replace('.xls', '', $filename).'.xlsx';
        $phpexcel = new \PHPExcel();
        $phpexcel->getProperties()
            ->setCreator("Maarten Balliauw")
            ->setLastModifiedBy("Maarten Balliauw")
            ->setTitle("Office 2007 XLSX Test Document")
            ->setSubject("Office 2007 XLSX Test Document")
            ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
            ->setKeywords("office 2007 openxml php")
            ->setCategory("Test result file");
        $phpexcel->getActiveSheet()->fromArray($data);
        $phpexcel->getActiveSheet()->setTitle('Sheet1');
        $phpexcel->setActiveSheetIndex(0);
        header('Content-Type: application/vnd.ms-excel');
        header("Content-Disposition: attachment;filename=$filename");
        header('Cache-Control: max-age=0');
        header('Cache-Control: max-age=1');
        header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header ('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT'); // always modified
        header ('Cache-Control: cache, must-revalidate'); // HTTP/1.1
        header ('Pragma: public'); // HTTP/1.0
        return $objwriter = \PHPExcel_IOFactory::createWriter($phpexcel, 'Excel2007');
        $objwriter->save('php://output');
        exit;
    }
}

五,百度地圖
注意:地圖可能更換,比如換成高德.
核心代碼

/*
 *獲取行駛距離和時間
 */
public function getMileageTime($start_lat, $start_lng, $end_lat, $end_lng)
{
    $origins = $start_lat . ',' . $start_lng;
    $destinations = $end_lat . ',' . $end_lng;
    $data['origins'] = $origins;
    $data['destinations'] = $destinations;
    $data['output'] = 'json';
    $data['tactics'] = 11;

    $data['ak'] = $this->config['ak'];
    $uri = 'http://api.map.baidu.com/routematrix/v2/driving?' . http_build_query($data);
    $address = $this->http_get($uri);
    $da=[];
    if ($address['status'] == 0) {
        $da['distanc']=$address['result']['0']['distance']['text'];
        $da['time']=$address['result']['0']['duration']['text'];
        return $da;
    } else {
       throw new \Exception('百度地圖:'.$address['message']);
    }
}

六,短信
短信可能使用夢網(wǎng)科技或者阿里大于
面向接口開發(fā)$smsSendConn是夢網(wǎng)的短信類庫或者阿里的短信類庫,看官方文檔就可以

try {
    $result = $smsSendConn->singleSend($data);
    return true;
}catch (Exception $e) {
    //$e->getMessage()
    return false;
}

感謝這些組件代碼的作者