Redis入门篇

1.简单介绍

Redis是一个开源，高级的键值存储和一个适用的解决方案，用于构建高性能，可扩展的Web应用程序。

Redis有三个主要特点，使它优越于其它键值数据存储系统 -

• Redis将其数据库完全保存在内存中，仅使用磁盘进行持久化。
• 与其它键值数据存储相比，Redis有一组相对丰富的数据类型。
• Redis可以将数据复制到任意数量的从机中。

2.安装redis服务

下载文件Redis-x64-3.2.100.msi  

3.常用redis命令

卸载服务：redis-server --service-uninstall

开启服务：redis-server --service-start

停止服务：redis-server --service-stop

4.安装redis可视化工具

redis-desktop-manager-0.8.8.384.exe

5.存取数据

using Newtonsoft.Json;
using Qxun.Framework.Contract;
using StackExchange.Redis;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace Test
{
    [Serializable]
    public class User
    {
        public long Id { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
    }
    public class Program
    {
        static void Main(string[] args)
        {
            ConnectionMultiplexer redis = ConnectionMultiplexer.Connect("localhost:6379,password=6665508a");
            IDatabase db = redis.GetDatabase();
            long count = 10000 * 10;
            DateTime start = DateTime.Now;

            #region 所有Redis的数据写入方法
            db.StringSet("key_test", "shaocan");
            db.HashSet("userinfo", "name", "shaocan");
            db.SetAdd("set_test", "user1");
            db.SetAdd("set_test", "user2");
            db.SortedSetAdd("sset_test", "user1", DateTime.Now.Ticks);
            db.SortedSetAdd("sset_test", "user2", DateTime.Now.Ticks);
            db.ListLeftPush("list_test", "user1");
            #endregion
            start = DateTime.Now;

            /* BinaryFormat */
            //二进制格式
            for (int i = 0; i < count; i++)
            {
                User user = new User { Id = i, Name = "YouNameIt" + i, Age = 20 };
                string key = "myObject" + i;
                byte[] bytes;

                using (var stream = new MemoryStream())
                {
                    new BinaryFormatter().Serialize(stream, user);
                    bytes = stream.ToArray();
                }
                //设置值
                //SET键保存字符串值。如果key已经拥有一个值，它被覆盖，而不管其类型。
                db.StringSet(key, bytes);
            }


            //读取10w条数据
            for (int i = 0; i < count; i++)
            {
                string key = "myObject" + i;
                User user = null;
                byte[] bytes = (byte[])db.StringGet(key);

                if (bytes != null)
                {
                    using (var stream = new MemoryStream(bytes))
                    {
                        //二进制流，反序列化
                        user = (User)new BinaryFormatter().Deserialize(stream);
                    }
                }
                Console.WriteLine(user.Name);
            }
            System.Console.WriteLine(string.Format("Binary Format {0} items takes {1} seconds", count, (DateTime.Now - start).TotalSeconds));
            start = DateTime.Now;

            ///* 100000 */
            //for (int i = 0; i < count; i++)
            //{
            //    User user = new User { Id = i, Name = "极客神殿" + i, Age = 20 };
            //    string json = JsonConvert.SerializeObject(user);

            //    string key = "json" + i;
            //    db.StringSet(key, json);
            //}

            ////读取10W条数据
            //for (int i = 0; i < count; i++)
            //{
            //    string key = "json" + i;
            //    string json = db.StringGet(key);
            //    User user = (User)JsonConvert.DeserializeObject(json, typeof(User));
            //    Console.WriteLine(user.Name);
            //}
            //System.Console.WriteLine(string.Format("JSON Format {0} items takes {1} seconds", count, (DateTime.Now - start).TotalSeconds));
            //start = DateTime.Now;


            ////序列化DataSet为JSON。
            ////http://www.newtonsoft.com/json/help/html/SerializeDataSet.htm
            //DataSet dataSet = new DataSet("dataSet");
            //dataSet.Namespace = "NetFrameWork";
            //DataTable table = new DataTable();
            //DataColumn idColumn = new DataColumn("id", typeof(int));
            //idColumn.AutoIncrement = true;

            //DataColumn itemColumn = new DataColumn("item");
            //table.Columns.Add(idColumn);
            //table.Columns.Add(itemColumn);
            //dataSet.Tables.Add(table);

            //for (int i = 0; i < 2; i++)
            //{
            //    DataRow newRow = table.NewRow();
            //    newRow["item"] = "[测试] " + i;
            //    table.Rows.Add(newRow);
            //}

            //dataSet.AcceptChanges();

            //string _json = JsonConvert.SerializeObject(dataSet,Newtonsoft.Json.Formatting.Indented);
            ////设置dataset1值
            //db.StringSet("dataset1", _json);

            //DataSet ds = (DataSet)JsonConvert.DeserializeObject(_json, typeof(DataSet));
            //Console.WriteLine(ds.Tables[0].Rows[0]["item"].ToString());

            System.Console.ReadLine();
        }

    }
}