Memcached集成Spring緩存環境構建

Memcached簡要說明:html

        Memcached 是一個高性能的分佈式內存對象緩存系統,用於動態Web應用以減輕數據庫負載。它經過在內存中緩存數據和對象來減小讀取數據庫的次數,從而提升動態、數據庫驅動網站的速度。Memcached基於一個存儲鍵/值對的hashmap。其守護進程(daemon )是用C寫的,可是客戶端能夠用任何語言來編寫,並經過memcached協議與守護進程通訊java

===================================================================git

項目構建步驟和簡要說明以下web

  1. 下載安裝memcached服務端文件,點擊memcached.exe運行啓動服務器(windows)spring

    (參考:http://jingyan.baidu.com/article/5225f26b7ef644e6fb09087a.html)數據庫

  2. 搭建maven的web項目,選擇建立maven項目,再選擇maven-archetype-webapp類型建立項目。apache


  3. 項目文件結構圖windows

  4. 項目主要代碼文件說明api

 (1)pom.xml 構建項目的pom文件緩存

 (2)applicationContext_memcache.xml  spring的memcache配置文件

 (3)applicationContext.xml    spring的配置文件

  (4)memcache.properties     memcache緩存的配置文件

 (5)UserBean.java

 (6)MemcachedService.java  memcache緩存封裝接口定義

 (7)MemcachedServiceImpl.java  memcache緩存封裝接口實現

 (8)MemcachedServiceImplTest.java memcache緩存單元測試類


  5.項目主要代碼文件說明列表詳情展現

 (1)pom.xml 構建項目的pom文件(基於spring mvc項目基礎)

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.iboxpay</groupId>
	<artifactId>memcached</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>test Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<dependencies>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.7</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>

		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
			<version>1.1.2</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>3.2.8.RELEASE</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-orm</artifactId>
			<version>3.2.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjrt</artifactId>
			<version>1.6.12</version>
		</dependency>

		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-core</artifactId>
			<version>4.3.4.Final</version>
		</dependency>

		<dependency>
			<groupId>commons-pool</groupId>
			<artifactId>commons-pool</artifactId>
			<version>1.6</version>
		</dependency>

		<dependency>
			<groupId>c3p0</groupId>
			<artifactId>c3p0</artifactId>
			<version>0.9.1</version>
		</dependency>

		<dependency>
			<groupId>commons-pool</groupId>
			<artifactId>commons-pool</artifactId>
			<version>1.6</version>
		</dependency>
		<dependency>
			<groupId>cglib</groupId>
			<artifactId>cglib</artifactId>
			<version>2.2.2</version>
		</dependency>

		<dependency>
			<groupId>commons-dbcp</groupId>
			<artifactId>commons-dbcp</artifactId>
			<version>1.4</version>
		</dependency>
		<dependency>
			<groupId>commons-dbcp</groupId>
			<artifactId>commons-dbcp</artifactId>
			<version>1.4</version>
		</dependency>
		<dependency>
			<groupId>javaee</groupId>
			<artifactId>javaee-api</artifactId>
			<version>5</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.7.5</version>
		</dependency>
		<dependency>
			<groupId>commons-lang</groupId>
			<artifactId>commons-lang</artifactId>
			<version>2.6</version>
		</dependency>

        <!--  -->
		<dependency>
			<groupId>com.danga</groupId>
			<artifactId>memcached</artifactId>
			<version>2.6.6</version>
		</dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
				</configuration>
			</plugin>
		</plugins>
		<finalName>test</finalName>
	</build>
</project>

 (2)applicationContext_memcache.xml  spring的memcache配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
         http://www.springframework.org/schema/beans/spring-beans-2.5.xsd  
         http://www.springframework.org/schema/context  
         http://www.springframework.org/schema/context/spring-context-2.5.xsd  
         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd  
         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<bean id="memcachedPool" class="com.danga.MemCached.SockIOPool"
		factory-method="getInstance" init-method="initialize" destroy-method="shutDown">

		<constructor-arg>
			<value>memCachedPool</value>
		</constructor-arg>

		<property name="servers">
			<list>
				<value>${memcache.server}</value>
			</list>
		</property>

		<property name="initConn">
			<value>${memcache.initConn}</value>
		</property>

		<property name="minConn">
			<value>${memcache.minConn}</value>
		</property>

		<property name="maxConn">
			<value>${memcache.maxConn}</value>
		</property>

		<property name="maintSleep">
			<value>${memcache.maintSleep}</value>
		</property>

		<property name="nagle">
			<value>${memcache.nagle}</value>
		</property>

		<property name="socketTO">
			<value>${memcache.socketTO}</value>
		</property>
	</bean>

	<bean id="memCachedClient" class="com.danga.MemCached.MemCachedClient">
		<constructor-arg>
			<value>memCachedPool</value>
		</constructor-arg>
	</bean>
	
	
</beans>

 (3)applicationContext.xml    spring的配置文件

<?xml version="1.0" encoding="UTF-8"?>  
<beans  
    xmlns="http://www.springframework.org/schema/beans"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
    xmlns:p="http://www.springframework.org/schema/p"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">  
  
<bean  
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
    <property name="locations">  
    <list>  
        <value>classpath:memcache.properties</value>  
        <value>classpath:datasource.properties</value>  
    </list>  
    </property>  
</bean>  
<bean id="springContextHolder" class="com.iboxpay.settlement.gateway.common.util.SpringContextHolder"/>
<bean id="memcachedService" class="com.iboxpay.settlement.gateway.common.cache.remote.MemcachedServiceImpl"/>    
</beans>

  (4)memcache.properties     memcache緩存的配置文件

memcache.server=127.0.0.1:11211
memcache.initConn=20
memcache.minConn=10
memcache.maxConn=50
memcache.maintSleep=3000
memcache.nagle=false
memcache.socketTO=100

 (5)UserBean.java

package com.iboxpay.settlement.gateway.common.vo;

import java.io.Serializable;  

public class UserBean implements Serializable{  
     
   /** 
    *  
    */  
   private static final long serialVersionUID = 1L;  
 
   private String name;  
     
   private int age;  
 
   public String getName() {  
       return name;  
   }  
 
   public void setName(String name) {  
       this.name = name;  
   }  
 
   public int getAge() {  
       return age;  
   }  
 
   public void setAge(int age) {  
       this.age = age;  
   }  
      
   public String toString() {  
        String bean = "{name:"+this.getName()+",age:"+this.getAge()+"}";  
       return bean;  
   }  
      
 
}

 (6)MemcachedService.java  memcache緩存封裝接口定義

package com.iboxpay.settlement.gateway.common.cache.remote;
public interface MemcachedService {

	public boolean delete(String key);

	public void set(String key, Object object);

	public Object get(String key);

	public boolean deleteWithType(String key, Class clazz);

	public void setWithType(String key, Object object);

	public void setWithType(String key, Object object, Class clazz);

	public Object getWithType(String key, Class clazz);

	public Object[] getWithType(String keys[], Class clazz);

	public void setWithType(String keys[], Class clazz, Object objects[]);
}

 (7)MemcachedServiceImpl.java  memcache緩存封裝接口實現

package com.iboxpay.settlement.gateway.common.cache.remote;

import javax.annotation.Resource;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Service;
import com.danga.MemCached.MemCachedClient;

/**
 * The class MemcachedServiceImpl.
 *
 * Description: memcached緩存service實現類
 *
 * @author: liaoxiongjian
 * @since: 2015年11月21日 上午9:49:06 	
 * @version: $Revision$ $Date$ $LastChangedBy$
 *
 */
@Service("memcachedService")
public class MemcachedServiceImpl implements MemcachedService {

    private static final Log log = LogFactory.getLog(MemcachedServiceImpl.class);
    private static final long serialVersionUID = 1;

    @Resource
    MemCachedClient memCachedClient;

    public void setMemCachedClient(MemCachedClient memCachedClient) {
        this.memCachedClient = memCachedClient;

        // 序列化
        if (this.memCachedClient != null) {
            this.memCachedClient.setPrimitiveAsString(true);
        }
    }

    public boolean delete(String key) {
        return memCachedClient.delete(key);
    }

    public void set(String key, Object object) {
        if (object != null)
            memCachedClient.set(key, object);
        else memCachedClient.delete(key);
    }

    public Object get(String key) {
        return memCachedClient.get(key);
    }

    public boolean deleteWithType(String key, Class clazz) {
        return memCachedClient.delete(getKeyWithType(key, clazz));
    }

    public Object getWithType(String key, Class clazz) {
        return memCachedClient.get(getKeyWithType(key, clazz));
    }

    public void setWithType(String key, Object object) {
        memCachedClient.set(getKeyWithType(key, object.getClass()), object);
    }

    public void setWithType(String key, Object object, Class clazz) {
        if (object != null)
            memCachedClient.set(getKeyWithType(key, clazz), object);
        else memCachedClient.delete(getKeyWithType(key, clazz));
    }

    protected String getKeyWithType(String key, Class clazz) {
        return clazz.getSimpleName() + "-" + key;
    }

    @Override
    public Object[] getWithType(String[] keys, Class clazz) {
        for (int i = 0; i < keys.length; i++) {
            keys[i] = getKeyWithType(keys[i], clazz);
        }
        try {
            return memCachedClient.getMultiArray(keys);
        } catch (Exception e) {}
        return new Object[0];
    }

    @Override
    public void setWithType(String[] keys, Class clazz, Object[] objects) {
        for (int i = 0; i < keys.length; i++) {
            memCachedClient.set(getKeyWithType(keys[i], clazz), objects[i]);
        }
    }



}

 (8)MemcachedServiceImplTest.java memcache緩存單元測試類

package com.iboxpay.test;

import static org.junit.Assert.*;

import java.util.ArrayList;
import java.util.List;

import javax.annotation.Resource;

import junit.framework.TestCase;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.iboxpay.settlement.gateway.common.cache.remote.MemcachedService;
import com.iboxpay.settlement.gateway.common.vo.UserBean;

@RunWith(SpringJUnit4ClassRunner.class)    
@ContextConfiguration(locations = {"classpath:applicationContext.xml","classpath:applicationContext_memcache.xml"})
public class MemcachedServiceImplTest extends TestCase{
	
	@Resource
	private MemcachedService memcachedService;

	@Test
	public void testSet() {
		try {

			// 開始設值
			memcachedService.set("name", " string  ");
			memcachedService.set("int", 5);
			memcachedService.set("double", 5.5);

			UserBean UserBean = new UserBean();
			UserBean.setAge(21);
			UserBean.setName("名字");

			memcachedService.set("UserBean", UserBean);

			List<UserBean> data = new ArrayList<UserBean>();
			for (int i = 0; i < 3; i++) {
				UserBean xUserBean = new UserBean();
				xUserBean.setAge(i);
				xUserBean.setName("test_" + i);
				data.add(xUserBean);
			}
			memcachedService.set("data", data);
			
		
			 //開始取值
			String name = (String) memcachedService.get("name");
			int i = (Integer) memcachedService.get("int");
			double d = (Double) memcachedService.get("double");
			UserBean b = (UserBean) memcachedService.get("UserBean");
			data = (List<UserBean>) memcachedService.get("data");

			System.out.println("字符串:" + name);
			System.out.println("數字型:" + i);
			System.out.println("雙精度:" + d);
			System.out.println("UserBean  toString :" + b.toString());

			System.out.println("data  toString :" + data.toString());
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}


備註:Memcached集成Spring緩存環境構建源碼

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