java使用memcache示例
Windows系统下memcache的安装
cmd进入到memcache目录下(win10需要以管理员身份运行cmd)
memcache.exe -d install
memcache.exe -d start
启动memcache服务后可以在windows服务中看到名称为memcache 的服务
Java使用memcache
项目目录如下
User.java
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public class User implements Serializable{    private static final long serialVersionUID = 1L;    private String username;          private String password;    //省略构造函数级getter setter             @Override    public int hashCode() {        final int prime = 31;        int result = 1;        result = prime * result                + ((password == null) ? 0 : password.hashCode());        result = prime * result                + ((username == null) ? 0 : username.hashCode());        return result;    }      @Override    public boolean equals(Object obj) {        if (this == obj)            return true;        if (obj == null)            return false;        if (getClass() != obj.getClass())            return false;        User other = (User) obj;        if (password == null) {            if (other.password != null)                return false;        } else if (!password.equals(other.password))            return false;        if (username == null) {            if (other.username != null)                return false;        } else if (!username.equals(other.username))            return false;        return true;    }} | 
MemcachedUtil.java
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public class MemcachedUtil {    /**     * memcached客户端单例     */    private static MemCachedClient cachedClient = new MemCachedClient();    /**     * 初始化连接池     */    static {        //获取连接池的实例        SockIOPool pool = SockIOPool.getInstance();                  //服务器列表及其权重        String[] servers = {"127.0.0.1:11211"};        Integer[] weights = {3};                  //设置服务器信息        pool.setServers(servers);        pool.setWeights(weights);                  //设置初始连接数、最小连接数、最大连接数、最大处理时间        pool.setInitConn(10);        pool.setMinConn(10);        pool.setMaxConn(1000);        pool.setMaxIdle(1000*60*60);                  //设置连接池守护线程的睡眠时间        pool.setMaintSleep(60);                  //设置TCP参数,连接超时        pool.setNagle(false);        pool.setSocketTO(60);        pool.setSocketConnectTO(0);                  //初始化并启动连接池        pool.initialize();                  //压缩设置,超过指定大小的都压缩//      cachedClient.setCompressEnable(true);//      cachedClient.setCompressThreshold(1024*1024);    }          private MemcachedUtil(){    }          public static boolean add(String key, Object value) {        return cachedClient.add(key, value);    }          public static boolean add(String key, Object value, Integer expire) {        return cachedClient.add(key, value, expire);    }          public static boolean put(String key, Object value) {        return cachedClient.set(key, value);    }          public static boolean put(String key, Object value, Integer expire) {        return cachedClient.set(key, value, expire);    }          public static boolean replace(String key, Object value) {        return cachedClient.replace(key, value);    }          public static boolean replace(String key, Object value, Integer expire) {        return cachedClient.replace(key, value, expire);    }          public static Object get(String key) {        return cachedClient.get(key);    }} | 
MemcachedUtilTest.java测试类
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public class MemcachedUtilTest {    @Test    public void testMemcached() {        MemcachedUtil.put("hello", "world", 60);        String hello = (String) MemcachedUtil.get("hello");        Assert.assertEquals("world", hello);                  for(int i = 0; i < 10000; ++i) {            User user = new User("Jason" + i, "123456-" + i);            MemcachedUtil.put("user" + i, user, 60);            Object obj = MemcachedUtil.get("user" + i);            Assert.assertEquals(user, obj);        }    }} | 
在Spring中配置并使用memcache
applicationContext.xml配置文件
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<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans.xsd">      <bean id="memcachedPool" class="com.danga.MemCached.SockIOPool"        factory-method="getInstance" init-method="initialize">        <constructor-arg>            <value>neeaMemcachedPool</value>        </constructor-arg>        <property name="servers">            <list>                <value>127.0.0.1:11211</value>            </list>        </property>        <property name="initConn">            <value>20</value>        </property>        <property name="minConn">            <value>10</value>        </property>        <property name="maxConn">            <value>50</value>        </property>        <property name="nagle">            <value>false</value>        </property>        <property name="socketTO">            <value>3000</value>        </property>    </bean>    <bean id="memcachedClient" class="com.danga.MemCached.MemCachedClient">        <constructor-arg>            <value>neeaMemcachedPool</value>        </constructor-arg>    </bean></beans> | 
MemcachedSpringTest.java测试类
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public class MemcachedSpringTest {    private MemCachedClient cachedClient;         @Before    public void init() {        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");        cachedClient = (MemCachedClient)context.getBean("memcachedClient");    }          @Test    public void testMemcachedSpring() {        User user = new User("lou", "jason");        cachedClient.set("user", user);        User cachedBean = (User)user;        Assert.assertEquals(user, cachedBean);    }} | 
本机测试全部通过,当然如果你打算深入学习的话,最好还是找一些相关的java视频教程来看看。
                    
                


                
            
        
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