Memcached的使用
一 、Memcached服务器端的安装 （此处将其作为系统服务安装）
下载文件：memcached 1.2.1 for Win32 binaries (Dec 23, 2006)
1 解压缩文件到c:memcached
2 命令行输入 'c:memcachedmemcached.exe -d install'
3 命令行输入 'c:memcachedmemcached.exe -d start' ，该命令启动 Memcached ，默认监听端口为 11211
通过 memcached.exe -h 可以查看其帮助
using Memcached.ClientLibrary; using System; using System.Collections; using System.Collections.Generic; using System.Web; /// <summary> /// MemberHelper 的摘要说明 /// </summary> public abstract class MemberHelper { #region 创建Memcache服务 /// <summary> /// 创建Memcache服务 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">Socket连接池名称</param> /// <returns>Memcache客户端代理类</returns> public static MemcachedClient CreateServer(ArrayList serverlist, string poolName) { //初始化memcache服务器池 SockIOPool pool = SockIOPool.GetInstance(poolName); //设置Memcache池连接点服务器端。 pool.SetServers(serverlist); pool.Initialize(); //其他参数根据需要进行配置 //创建了一个Memcache客户端的代理类。 MemcachedClient mc = new MemcachedClient(); mc.PoolName = poolName; mc.EnableCompression = false;//是否压缩 return mc; } #endregion #region 缓存是否存在 /// <summary> /// 缓存是否存在 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="key">键</param> /// <returns></returns> public static bool CacheIsExists(ArrayList serverlist, string poolName, string key) { MemcachedClient mc = CreateServer(serverlist, poolName); if (mc.KeyExists(key)) { return true; } else { return false; } } #endregion #region 添加缓存 #region 添加缓存(键不存在则添加,键存在则不能添加) /// <summary> /// 添加缓存(键不存在则添加,键存在则不能添加) /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="key">键</param> /// <param name="value">值</param> /// <param name="minutes">过期分钟数</param> /// <returns></returns> public static bool AddCache(ArrayList serverlist, string poolName, string key, string value, int minutes) { MemcachedClient mc = CreateServer(serverlist, poolName); return mc.Add(key, value, DateTime.Now.AddMinutes(minutes)); } #endregion #region 添加缓存(键不存在则添加,键存在则覆盖) /// <summary> /// 添加缓存(键不存在则添加,键存在则覆盖) /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="key">键</param> /// <param name="value">值</param> /// <param name="minutes">过期分钟数</param> /// <returns></returns> public static bool SetCache(ArrayList serverlist, string poolName, string key, string value, int minutes) { MemcachedClient mc = CreateServer(serverlist, poolName); return mc.Set(key, value, DateTime.Now.AddMinutes(minutes)); } #endregion #endregion #region 替换缓存 #region 替换缓存(键存在的才能替换,不存在则不替换) /// <summary> /// 替换缓存(键存在的才能替换,不存在则不替换) /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="key">键</param> /// <param name="value">值</param> /// <param name="minutes">过期分钟数</param> /// <returns></returns> public static bool ReplaceCache(ArrayList serverlist, string poolName, string key, string value, int minutes) { MemcachedClient mc = CreateServer(serverlist, poolName); return mc.Replace(key, value, DateTime.Now.AddMinutes(minutes)); } #endregion #endregion #region 获取缓存 #region 获取单个键对应的缓存 /// <summary> /// 获取单个键对应的缓存 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="key">键</param> /// <returns></returns> public static object GetCache(ArrayList serverlist, string poolName, string key) { MemcachedClient mc = CreateServer(serverlist, poolName); if (mc.KeyExists(key)) { return mc.Get(key); } else { return ""; } } #endregion #region 获取键数组对应的值 /// <summary> /// 获取键数组对应的值 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="keys">键列表</param> /// <returns>Hashtable键值对</returns> public static Hashtable GetCacheHt(ArrayList serverlist, string poolName, string[] keys) { MemcachedClient mc = CreateServer(serverlist, poolName); return mc.GetMultiple(keys); } #endregion #region 获取键数组对应的值 /// <summary> /// 获取键数组对应的值 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="keys">键列表</param> /// <returns>值的数组(不包含键)</returns> public static object[] GetCacheList(ArrayList serverlist, string poolName, string[] keys) { MemcachedClient mc = CreateServer(serverlist, poolName); object[] list = mc.GetMultipleArray(keys); ArrayList returnList = new ArrayList(); for (int i = 0; i < list.Length; i++) { if (list[i] != null) { returnList.Add(list[i]); } } return returnList.ToArray(); } #endregion #endregion #region 删除缓存 /// <summary> /// 删除缓存 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <param name="key">键</param> /// <returns></returns> public static bool DelCache(ArrayList serverlist, string poolName, string key) { MemcachedClient mc = CreateServer(serverlist, poolName); return mc.Delete(key); } #endregion #region 清空所有缓存 /// <summary> /// 清空所有缓存 /// </summary> /// <param name="serverlist">IP端口列表</param> /// <param name="poolName">连接池名称</param> /// <returns></returns> public static bool FlushAll(ArrayList serverlist, string poolName) { MemcachedClient mc = CreateServer(serverlist, poolName); return mc.FlushAll(); } #endregion }