35 lines
		
	
	
		
			720 B
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			35 lines
		
	
	
		
			720 B
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
<?php
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namespace app\service;
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use app\exception\ServiceException;
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use think\facade\Log;
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class Redis
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{
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    private static $redis = null;
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    private function __construct()
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    {
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    }
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    private function __clone()
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    {
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    }
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    // Redis  单例模式
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    public static function instance(): ?\Redis
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    {
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        if (self::$redis == null) {
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            try {
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                $redis = new \Redis();
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                $redis->connect(env('redis.host'), env('redis.port'));
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                self::$redis = $redis;
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            } catch (ServiceException $e) {
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                Log::error('实例化Redis失败: ' . $e->getMessage());
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                return null;
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            }
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        }
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        return self::$redis;
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    }
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} |