封装方法

const 	_redis = require("redis");//引入redis   /*	注意：如果redis-server与nodejs客户端都在本地，下列可写成 *		client = redis.createClient();否则要对括号内容进行更改*/const	client = _redis.createClient(6379,'127.0.0.1'); //括号内容对应：端口号,主机 client.on("error", function (err) {  	console.log("Error :" , err);  //错误检测});    client.on('connect', function(){  	console.log('Redis连接成功.');  })    const 	redis = (function(){	var mod ={};//	set  get部分		mod.set = function(_key, value, expire, callback){  	    client.set(_key, value, function(err, result){  	        if (err) {  	            console.log(err);    	            return;  	        }  	        if (!isNaN(expire) && expire > 0) {  	            client.expire(_key, parseInt(expire));  	        }  	        if(callback){	  			callback(result);  	        }	    }) 	}; 	mod.get = function(_key, callback){  	    client.get(_key, function(err,result){  	        if (err) {  	            console.log(err);  	            callback(err,null)  	            return;  	        }  	        if(callback){	  			callback(result);  	        } 	    })  	};		//	查找所有的hkeys	mod.hkeys=function(_key,eve){		client.hkeys(_key, function (err, replies) {			if(!err){				eve(replies);		    	client.quit();			}		});	};//	hset hget部分	mod.hset = function(_key,key2,value,callback){  		client.hset(_key,key2,value);	}; 	mod.hgetall = function(_key, callback){ 		client.hgetall(_key,function(err,result){	        if (!err) {  	            callback(result)  	            return;  	        }  		});	};		mod.hget = function(_key,key2,callback){ 		client.hget( hashkey,_key, function(err, result){	        if(!err){        		callback(result); 	        }	        else{	        	throw err	        };		} )	};	return mod     })()

存取值检测

redis.set("usern ame5","sadasdas");//set值redis.get("usern ame5",function(result){	console.log("get:"+result)// get:sadasdas});redis.hset("hash key","sadasdas",1528231340153)//hset值 redis.hset("hash key","sadasdadds","152823134asd0153") //hset值 redis.hget("hash key","sadasdas",function(result){	console.log("hash key get:")	console.log(result)//1528231340153})redis.hgetall("hash key",function(result){	console.log("hash key get:")	console.log(result)//{ sadasdas: '1528231340153',sadasdadds: '152823134asd0153' }})redis.hkeys("hash key",function(result){ 	console.log("hash key keys:"+result)//hash key keys:sadasdas,sadasdadds})