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  • ServiceStack.Redis 之 IRedisTypedClient<第四篇>

    IRedisTypedClient

      IRedisTypedClient类相当于IRedicClient的强类型版,其方法与属性大多数与IRedisClient类似。

      它支持在Redis中使用Linq查询的强大的类,它本身是一个泛型,IRedisClient的泛型方法As获得对象。

      其方法原型如下:

        IRedisTypedClient<T> As<T>();

      1、IEntityStore<T>接口内容

      其中IRedisTypedClient这个类实现了这个接口IEntityStore<T>,该接口要求提供的功能如下:

    方法 说明
    Delete 根据实体删除一条记录
    DeleteAll 全部删除
    DeleteById 根据Id删除一条记录
    DeleteByIds 根据输入的多个Id删除多条记录
    GetAll 获取所有该类型的记录
    GetById 根据Id获取一条记录
    GetByIds 根据输入的多个Id获取多条记录
    Store 根据传入的实体,添加一条记录
    StoreAll 根据传入的实体集合,添加多条记录

      Linq查询(针对于GetAll方法返回的IList<T>)示例:

            public ActionResult Index()
            {
                Person p1 = new Person() { Id = 1, Name = "刘备" };
                Person p2 = new Person() { Id = 2, Name = "关羽" };
                Person p3 = new Person() { Id = 3, Name = "张飞" };
                Person p4 = new Person() { Id = 4, Name = "曹操" };
                Person p5 = new Person() { Id = 5, Name = "典韦" };
                Person p6 = new Person() { Id = 6, Name = "郭嘉" };
                List<Person> ListPerson = new List<Person>() { p2,p3,p4,p5,p6 };
    
                using (IRedisClient RClient = prcm.GetClient())
                {
                    IRedisTypedClient<Person> IRPerson = RClient.As<Person>();
                    IRPerson.DeleteAll();
    
                    //------------------------------------------添加--------------------------------------------
    
                    //添加单条数据
                    IRPerson.Store(p1);
                    //添加多条数据
                    IRPerson.StoreAll(ListPerson);
    
                    //------------------------------------------查询--------------------------------------------
    
                    //Linq支持
                    Response.Write(IRPerson.GetAll().Where(m => m.Id == 1).First().Name);       //刘备
                    //注意,用IRedisTypedClient的对象IRPerson的Srore()添加的才能用IRPerson()方法读取
                    Response.Write(IRPerson.GetAll().First(m => m.Id == 2).Name);       //关羽
    
             //------------------------------------------删除--------------------------------------------
    
                    IRPerson.Delete(p1);    //删除 刘备
                    Response.Write(IRPerson.GetAll().Count());      //5
                    IRPerson.DeleteById(2); //删除 关羽
                    Response.Write(IRPerson.GetAll().Count());      //4
                    IRPerson.DeleteByIds(new List<int> { 3,4 });    //删除张飞 曹操
                    Response.Write(IRPerson.GetAll().Count());      //2
                    IRPerson.DeleteAll();   //全部删除
                    Response.Write(IRPerson.GetAll().Count());      //0
                }
    
                return Content("");
            }

      另外,由于该接口并没有实现修改的方法,所以修改还得通过IRedisClient的实例:

            public ActionResult Index()
            {
                PooledRedisClientManager prcm = new PooledRedisClientManager(new List<string>() { "127.0.0.1" }, new List<string>() { "127.0.0.1" }, RedisConfig);
    
                Person p1 = new Person() { Id = 1, Name = "刘备" };
                Person p2 = new Person() { Id = 2, Name = "关羽" };
                Person p3 = new Person() { Id = 3, Name = "张飞" };
                Person p4 = new Person() { Id = 4, Name = "曹操" };
                Person p5 = new Person() { Id = 5, Name = "典韦" };
                Person p6 = new Person() { Id = 6, Name = "郭嘉" };
                List<Person> ListPerson = new List<Person>() { p2,p3,p4,p5,p6 };
    
                using (IRedisClient RClient = prcm.GetClient())
                {
                    IRedisTypedClient<Person> IRPerson = RClient.As<Person>();
                    IRPerson.StoreAll(ListPerson);
    
                    //读取所有的Key
                    List<string> ListKeys = IRPerson.GetAllKeys();      
                    foreach (string key in ListKeys)
                    {
                        Response.Write(key  + "<br/>");
                    }
    
                    //修改的话只能通过Key修改
                    //urn:person:3
                    //urn:person:4
                    //urn:person:5
                    //ids:Person
                    //urn:person:1
                    //urn:person:6
                    //urn:person:2
                    Person p7 = new Person() { Id = 8, Name = "撼地神牛" };
                    RClient.Set("urn:person:1", p7);
                    Response.Write(IRPerson.GetAll().First(m => m.Id == 8).Name);   //输出 撼地神牛
                }
    
                return Content("");
            }
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  • 原文地址:https://www.cnblogs.com/kissdodog/p/3606017.html
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