memcached 内存缓存

MemcacheController.java import java.io.IOException; import net.spy.memcached.AddrUtil; import net.spy.memcached.MemcachedClient; public class MemcacheController { private MemcachedClient cache_user = null; private static MemcacheController memcacheController = null; /** * 使用单例模式 * */ private MemcacheController() { } public static MemcacheController getInstance() { if (memcacheController == null) { memcacheController = new MemcacheController(); } return memcacheController; } /** * * memcached:连接到memcached * * @return void * @throws */ public void memcached() { try { cache_user = new MemcachedClient( AddrUtil.getAddresses("192.168.1.191:11211")); //你可以同时使用多台电脑内存,只要都装上memcached,你懂的 // cache_user = new MemcachedClient( // AddrUtil.getAddresses("192.168.1.191:11211 192.168.1.133:11211")); } catch (IOException e) { System.out.println("init cache_user error!~~~"); e.printStackTrace(); } } /** * * setUser:添加用户的性别 * * @param key ID+姓名 * @param value 性别 * @return void * @throws */ public void setUser(String key, Object value) { cache_user.set(key, Integer.MAX_VALUE, value); } /** * * getUser:获得用户的性别 * * @param key * @return * @return Object * @throws */ public Object getUser(String key) { return cache_user.get(key); } /** * * deleteUser:根据key删除 * * @param key * @return void * @throws */ public void deleteUser(String key){ cache_user.delete(key); } /** * * clearUser:全部清空 * * @return void * @throws */ public void clearUser(){ cache_user.flush(); } } User.java import java.io.Serializable; public class User implements Serializable{ private Integer id; private String name; private String sex; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } } Test.java package com.kanq.memcached.demo; public class Test { public static void main(String[] args) { //单个值得存取 // Integer id = 10003; // String name = "小强"; // String sex = "男人"; // // MemcacheController memcache = MemcacheController.getInstance(); // memcache.memcached(); // 连接到memcached // memcache.setUser(id + name, sex); // // String value = (String) memcache.getUser(id+name); // System.out.println(value); //也可以实现对象的存取 同理 注意存取的对象必须实现序列化 User user = new User(); user.setId(10003); user.setName("小白"); user.setSex("女人"); String key = user.getId() + user.getName(); MemcacheController memcache = MemcacheController.getInstance(); memcache.memcached(); // 连接到memcached memcache.setUser(key, user); String value = ((User)memcache.getUser(key)).getSex(); System.out.println(value); } }