Memcached之——整合Spring完整示例

一、配置

1、MemcachedCacheManager

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1. package com.cdsmartlink.framework.cache.memcached;  
2.   
3. import java.util.Collection;  
4. import java.util.HashMap;  
5. import java.util.Map;  
6. import java.util.concurrent.ConcurrentHashMap;  
7. import java.util.concurrent.ConcurrentMap;  
8.   
9. import org.springframework.cache.Cache;  
10. import org.springframework.cache.transaction.AbstractTransactionSupportingCacheManager;  
11.   
12. import com.danga.MemCached.MemCachedClient;  
13.   
14. /** 
15.  * Spring Cache整合Memcached实现  
16.  * @author liuyazhuang 
17.  */  
18. public class MemcachedCacheManager extends AbstractTransactionSupportingCacheManager {  
19.   
20.     private ConcurrentMap<String, Cache> cacheMap = new ConcurrentHashMap<String, Cache>();  
21.     private Map<String, Integer> expireMap = new HashMap<String, Integer>();   //缓存的时间  
22.     private MemCachedClient memcachedClient;   //memcached的客户端  
23.   
24.     public MemcachedCacheManager() {  
25.     }  
26.   
27.     @Override  
28.     protected Collection<? extends Cache> loadCaches() {  
29.         Collection<Cache> values = cacheMap.values();  
30.         return values;  
31.     }  
32.   
33.     @Override  
34.     public Cache getCache(String name) {  
35.         Cache cache = cacheMap.get(name);  
36.         if (cache == null) {  
37.             Integer expire = expireMap.get(name);  
38.             if (expire == null) {  
39.                 expire = 0;  
40.                 expireMap.put(name, expire);  
41.             }  
42.             cache = new MemcachedCache(name, expire.intValue(), memcachedClient);  
43.             cacheMap.put(name, cache);  
44.         }  
45.         return cache;  
46.     }  
47.   
48.     public void setMemcachedClient(MemCachedClient memcachedClient) {  
49.         this.memcachedClient = memcachedClient;  
50.     }  
51.   
52.     public void setConfigMap(Map<String, Integer> configMap) {  
53.         this.expireMap = configMap;  
54.     }  
55.   
56. }  

package com.cdsmartlink.framework.cache.memcached;import java.util.Collection;import java.util.HashMap;import java.util.Map;import java.util.concurrent.ConcurrentHashMap;import java.util.concurrent.ConcurrentMap;import org.springframework.cache.Cache;import org.springframework.cache.transaction.AbstractTransactionSupportingCacheManager;import com.danga.MemCached.MemCachedClient;/** * Spring Cache整合Memcached实现  * @author liuyazhuang */public class MemcachedCacheManager extends AbstractTransactionSupportingCacheManager {    private ConcurrentMap<String, Cache> cacheMap = new ConcurrentHashMap<String, Cache>();    private Map<String, Integer> expireMap = new HashMap<String, Integer>();   //缓存的时间    private MemCachedClient memcachedClient;   //memcached的客户端    public MemcachedCacheManager() {    }    @Override    protected Collection<? extends Cache> loadCaches() {        Collection<Cache> values = cacheMap.values();        return values;    }    @Override    public Cache getCache(String name) {        Cache cache = cacheMap.get(name);        if (cache == null) {            Integer expire = expireMap.get(name);            if (expire == null) {                expire = 0;                expireMap.put(name, expire);            }            cache = new MemcachedCache(name, expire.intValue(), memcachedClient);            cacheMap.put(name, cache);        }        return cache;    }    public void setMemcachedClient(MemCachedClient memcachedClient) {        this.memcachedClient = memcachedClient;    }    public void setConfigMap(Map<String, Integer> configMap) {        this.expireMap = configMap;    }}

2、MemcachedCache

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1. package com.cdsmartlink.framework.cache.memcached;  
2.   
3. import org.springframework.cache.Cache;  
4. import org.springframework.cache.support.SimpleValueWrapper;  
5.   
6. import com.danga.MemCached.MemCachedClient;  
7.   
8. /** 
9.  * MemcachedCache的实现，主要实现spring的cache接口 
10.  * @author liuyazhuang 
11.  * 
12.  */  
13. public class MemcachedCache implements Cache {  
14.   
15.     private final String name;  
16.     private final MemCache memCache;  
17.   
18.     public MemcachedCache(String name, int expire, MemCachedClient memcachedClient) {  
19.         this.name = name;  
20.         this.memCache = new MemCache(name, expire, memcachedClient);  
21.     }  
22.   
23.     @Override  
24.     public void clear() {  
25.         memCache.clear();  
26.     }  
27.   
28.     @Override  
29.     public void evict(Object key) {  
30.         memCache.delete(key.toString());  
31.     }  
32.   
33.     @Override  
34.     public ValueWrapper get(Object key) {  
35.         ValueWrapper wrapper = null;  
36.         Object value = memCache.get(key.toString());  
37.         if (value != null) {  
38.             wrapper = new SimpleValueWrapper(value);  
39.         }  
40.         return wrapper;  
41.     }  
42.   
43.     @Override  
44.     public String getName() {  
45.         return this.name;  
46.     }  
47.   
48.     @Override  
49.     public MemCache getNativeCache() {  
50.         return this.memCache;  
51.     }  
52.   
53.     @Override  
54.     public void put(Object key, Object value) {  
55.         memCache.put(key.toString(), value);  
56.     }  
57.   
58.     @Override  
59.     @SuppressWarnings(“unchecked”)  
60.     public <T> T get(Object key, Class<T> type) {  
61.         Object cacheValue = this.memCache.get(key.toString());  
62.         Object value = (cacheValue != null ? cacheValue : null);  
63.         if (type != null && !type.isInstance(value)) {  
64.             throw new IllegalStateException(“Cached value is not of required type [“ + type.getName() + “]: ” + value);  
65.         }  
66.         return (T) value;  
67.     }  
68.   
69. }  

package com.cdsmartlink.framework.cache.memcached;import org.springframework.cache.Cache;import org.springframework.cache.support.SimpleValueWrapper;import com.danga.MemCached.MemCachedClient;/** * MemcachedCache的实现，主要实现spring的cache接口 * @author liuyazhuang * */public class MemcachedCache implements Cache {    private final String name;    private final MemCache memCache;    public MemcachedCache(String name, int expire, MemCachedClient memcachedClient) {        this.name = name;        this.memCache = new MemCache(name, expire, memcachedClient);    }    @Override    public void clear() {        memCache.clear();    }    @Override    public void evict(Object key) {        memCache.delete(key.toString());    }    @Override    public ValueWrapper get(Object key) {        ValueWrapper wrapper = null;        Object value = memCache.get(key.toString());        if (value != null) {            wrapper = new SimpleValueWrapper(value);        }        return wrapper;    }    @Override    public String getName() {        return this.name;    }    @Override    public MemCache getNativeCache() {        return this.memCache;    }    @Override    public void put(Object key, Object value) {        memCache.put(key.toString(), value);    }    @Override    @SuppressWarnings("unchecked")    public <T> T get(Object key, Class<T> type) {        Object cacheValue = this.memCache.get(key.toString());        Object value = (cacheValue != null ? cacheValue : null);        if (type != null && !type.isInstance(value)) {            throw new IllegalStateException("Cached value is not of required type [" + type.getName() + "]: " + value);        }        return (T) value;    }}

3、MemCache

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1. package com.cdsmartlink.framework.cache.memcached;  
2.   
3. import java.util.HashSet;  
4. import java.util.Set;  
5.   
6. import org.slf4j.Logger;  
7. import org.slf4j.LoggerFactory;  
8.   
9. import com.danga.MemCached.MemCachedClient;  
10.   
11. /** 
12.  * Memcached的封装类 
13.  * @author liuyazhuang 
14.  * 
15.  */  
16. public class MemCache {  
17.     private static Logger log = LoggerFactory.getLogger(MemCache.class);  
18.   
19.     private Set<String> keySet = new HashSet<String>();  
20.     private final String name;  
21.     private final int expire;  
22.     private final MemCachedClient memcachedClient;  
23.   
24.     public MemCache(String name, int expire, MemCachedClient memcachedClient) {  
25.         this.name = name;  
26.         this.expire = expire;  
27.         this.memcachedClient = memcachedClient;  
28.     }  
29.   
30.     public Object get(String key) {  
31.         Object value = null;  
32.         try {  
33.             key = this.getKey(key);  
34.             value = memcachedClient.get(key);  
35.         } catch (Exception e) {  
36.             log.warn(”获取 Memcached 缓存超时”, e);  
37.         }  
38.         return value;  
39.     }  
40.   
41.     public void put(String key, Object value) {  
42.         if (value == null)  
43.             return;  
44.         try {  
45.             key = this.getKey(key);  
46.             memcachedClient.set(key, value, expire);  
47.             keySet.add(key);  
48.         }catch (Exception e) {  
49.             log.warn(”更新 Memcached 缓存错误”, e);  
50.         }  
51.     }  
52.   
53.     public void clear() {  
54.         for (String key : keySet) {  
55.             try {  
56.                 memcachedClient.delete(this.getKey(key));  
57.             }catch (Exception e) {  
58.                 log.warn(”删除 Memcached 缓存错误”, e);  
59.             }  
60.         }  
61.     }  
62.   
63.     public void delete(String key) {  
64.         try {  
65.             key = this.getKey(key);  
66.             memcachedClient.delete(key);  
67.         } catch (Exception e) {  
68.             log.warn(”删除 Memcached 缓存被中断”, e);  
69.         }  
70.     }  
71.   
72.     private String getKey(String key) {  
73.         return name + “_” + key;  
74.     }  
75. }  

package com.cdsmartlink.framework.cache.memcached;import java.util.HashSet;import java.util.Set;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import com.danga.MemCached.MemCachedClient;/** * Memcached的封装类 * @author liuyazhuang * */public class MemCache {    private static Logger log = LoggerFactory.getLogger(MemCache.class);    private Set<String> keySet = new HashSet<String>();    private final String name;    private final int expire;    private final MemCachedClient memcachedClient;    public MemCache(String name, int expire, MemCachedClient memcachedClient) {        this.name = name;        this.expire = expire;        this.memcachedClient = memcachedClient;    }    public Object get(String key) {        Object value = null;        try {            key = this.getKey(key);            value = memcachedClient.get(key);        } catch (Exception e) {            log.warn("获取 Memcached 缓存超时", e);        }        return value;    }    public void put(String key, Object value) {        if (value == null)            return;        try {            key = this.getKey(key);            memcachedClient.set(key, value, expire);            keySet.add(key);        }catch (Exception e) {            log.warn("更新 Memcached 缓存错误", e);        }    }    public void clear() {        for (String key : keySet) {            try {                memcachedClient.delete(this.getKey(key));            }catch (Exception e) {                log.warn("删除 Memcached 缓存错误", e);            }        }    }    public void delete(String key) {        try {            key = this.getKey(key);            memcachedClient.delete(key);        } catch (Exception e) {            log.warn("删除 Memcached 缓存被中断", e);        }    }    private String getKey(String key) {        return name + "_" + key;    }}

4、applicationContext-memcached.xml

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1. <?xml version=“1.0” encoding=“UTF-8”?>  
2. <beans xmlns=“http://www.springframework.org/schema/beans”  
3.        xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”  
4.        xmlns:p=“http://www.springframework.org/schema/p”  
5.        xmlns:context=“http://www.springframework.org/schema/context”  
6.        xmlns:aop=“http://www.springframework.org/schema/aop”   
7.        xmlns:tx=“http://www.springframework.org/schema/tx”  
8.        xmlns:mvc=“http://www.springframework.org/schema/mvc”  
9.        xmlns:cache=“http://www.springframework.org/schema/cache”  
10.        xsi:schemaLocation=”http://www.springframework.org/schema/beans  
11.                         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
12.                         http://www.springframework.org/schema/context   
13.                         http://www.springframework.org/schema/context/spring-context-3.0.xsd  
14.                         http://www.springframework.org/schema/tx   
15.                         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd  
16.                         http://www.springframework.org/schema/aop   
17.                         http://www.springframework.org/schema/aop/spring-aop-3.0.xsd  
18.                         http://www.springframework.org/schema/mvc   
19.                         http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  
20.                         http://www.springframework.org/schema/cache   
21.                         http://www.springframework.org/schema/cache/spring-cache-3.2.xsd”>  
22.   
23.       <!– 扫描项目包的根路径 –>  
24.     <context:component-scan base-package=“com.cdsmartlink” />  
25.     <context:component-scan base-package=“com.cdsmartlink.utils.dao.base.impl”/>  
26.       
27.     <!– ===================================  配置Memcached =============================== –>  
28.      <!– 开启缓存 –>    
29.    <cache:annotation-driven cache-manager=“cacheManager” proxy-target-class=“true” />    
30.     <!– 导入外部properties –>  
31.     <context:property-placeholder location=“classpath:memcached.properties”/>  
32.       
33.      <bean id=“memcachedPool” class=“com.danga.MemCached.SockIOPool”  
34.         factory-method=“getInstance” init-method=“initialize” destroy-method=“shutDown”>  
35.        <constructor-arg>  
36.             <value>neeaMemcachedPool</value>  
37.         </constructor-arg>  
38.         <property name=“servers”>  
39.             <list>  
40.                 <value>{memcache.server}</span><span class="tag">&lt;/</span><span class="tag-name">value</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;/</span><span class="tag-name">list</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;/</span><span class="tag-name">property</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;</span><span class="tag-name">property</span><span>&nbsp;</span><span class="attribute">name</span><span>=</span><span class="attribute-value">"initConn"</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;</span><span class="tag-name">value</span><span class="tag">&gt;</span><span>{memcache.initConn}</value>  
41.         </property>  
42.         <property name=“minConn”>  
43.             <value>{memcache.minConn}</span><span class="tag">&lt;/</span><span class="tag-name">value</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;/</span><span class="tag-name">property</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;</span><span class="tag-name">property</span><span>&nbsp;</span><span class="attribute">name</span><span>=</span><span class="attribute-value">"maxConn"</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;</span><span class="tag-name">value</span><span class="tag">&gt;</span><span>{memcache.maxConn}</value>  
44.         </property>  
45.         <property name=“maintSleep”>  
46.             <value>{memcache.maintSleep}</span><span class="tag">&lt;/</span><span class="tag-name">value</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;/</span><span class="tag-name">property</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;</span><span class="tag-name">property</span><span>&nbsp;</span><span class="attribute">name</span><span>=</span><span class="attribute-value">"nagle"</span><span class="tag">&gt;</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="tag">&lt;</span><span class="tag-name">value</span><span class="tag">&gt;</span><span>{memcache.nagle}</value>  
47.         </property>  
48.         <property name=“socketTO”>  
49.             <value>${memcache.socketTO}</value>  
50.         </property>  
51.     </bean>  
52.       
53.     <!– 配置MemcachedClient –>  
54.     <bean id=“memcachedClient” class=“com.danga.MemCached.MemCachedClient”>  
55.         <constructor-arg>  
56.             <value>neeaMemcachedPool</value>  
57.         </constructor-arg>  
58.     </bean>  
59.       
60.     <!– 配置缓存管理 –>  
61.     <bean id=“cacheManager” class=“com.cdsmartlink.framework.cache.memcached.MemcachedCacheManager”>  
62.         <property name=“memcachedClient” ref=“memcachedClient”/>  
63.         <!– 配置缓存时间 –>   
64.         <property name=“configMap”>  
65.              <map>  
66.                  <!– key缓存对象名称   value缓存过期时间 –>   
67.                  <entry key=“systemCache” value=“3600”/>  
68.              </map>  
69.         </property>  
70.     </bean>  
71.       
72.     <!– 导入调度任务 –>  
73.     <!– <import resource=”spring-quartz.xml” /> –>  
74. </beans>    

<?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"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:aop="http://www.springframework.org/schema/aop"        xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:mvc="http://www.springframework.org/schema/mvc"       xmlns:cache="http://www.springframework.org/schema/cache"       xsi:schemaLocation="http://www.springframework.org/schema/beans                        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd                        http://www.springframework.org/schema/context                         http://www.springframework.org/schema/context/spring-context-3.0.xsd                        http://www.springframework.org/schema/tx                         http://www.springframework.org/schema/tx/spring-tx-3.0.xsd                        http://www.springframework.org/schema/aop                         http://www.springframework.org/schema/aop/spring-aop-3.0.xsd                        http://www.springframework.org/schema/mvc                         http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd                        http://www.springframework.org/schema/cache                         http://www.springframework.org/schema/cache/spring-cache-3.2.xsd">      <!-- 扫描项目包的根路径 -->    <context:component-scan base-package="com.cdsmartlink" />    <context:component-scan base-package="com.cdsmartlink.utils.dao.base.impl"/>    <!-- ===================================  配置Memcached =============================== -->     <!-- 开启缓存 -->     <cache:annotation-driven cache-manager="cacheManager" proxy-target-class="true" />      <!-- 导入外部properties -->    <context:property-placeholder location="classpath:memcached.properties"/>     <bean id="memcachedPool" class="com.danga.MemCached.SockIOPool"        factory-method="getInstance" init-method="initialize" destroy-method="shutDown">       <constructor-arg>            <value>neeaMemcachedPool</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>    <!-- 配置MemcachedClient -->    <bean id="memcachedClient" class="com.danga.MemCached.MemCachedClient">        <constructor-arg>            <value>neeaMemcachedPool</value>        </constructor-arg>    </bean>    <!-- 配置缓存管理 -->    <bean id="cacheManager" class="com.cdsmartlink.framework.cache.memcached.MemcachedCacheManager">        <property name="memcachedClient" ref="memcachedClient"/>        <!-- 配置缓存时间 -->         <property name="configMap">             <map>                 <!-- key缓存对象名称   value缓存过期时间 -->                  <entry key="systemCache" value="3600"/>             </map>        </property>    </bean>    <!-- 导入调度任务 -->    <!-- <import resource="spring-quartz.xml" /> --></beans>  

5、memcached.properties

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1. #Memcached基本配置  
2. memcache.server=192.168.254.120:12000  
3. memcache.initConn=20    
4. memcache.minConn=10    
5. memcache.maxConn=50    
6. memcache.maintSleep=3000    
7. memcache.nagle=false    
8. memcache.socketTO=3000   

#Memcached基本配置memcache.server=192.168.254.120:12000memcache.initConn=20  memcache.minConn=10  memcache.maxConn=50  memcache.maintSleep=3000  memcache.nagle=false  memcache.socketTO=3000 

6、web.xml

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1. <?xml version=“1.0” encoding=“UTF-8”?>  
2. <web-app xmlns:xsi=“http://www.w3.org/2001/XMLSchema-instance”   
3.         xmlns=“http://java.sun.com/xml/ns/javaee”   
4.         xsi:schemaLocation=“http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd”   
5.         id=“WebApp_ID” version=“3.0”>  
6.   <display-name>Smartlink</display-name>  
7.     
8.   <!– 配置spring监听器 –>  
9.     <listener>  
10.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
11.     </listener>  
12.       
13.      <!– 配置初始化监听 –>  
14.     <listener>  
15.         <listener-class>com.cdsmartlink.utils.listener.WebServerStartListener</listener-class>  
16.     </listener>  
17.       
18.       
19.     <!– 加载配置文件路径 –>  
20.     <context-param>  
21.         <param-name>contextConfigLocation</param-name>  
22.         <param-value>classpath*:applicationContext*.xml</param-value>  
23.     </context-param>  
24.       
25.     <!– springmvc配置 –>  
26.     <servlet>  
27.         <servlet-name>smartlink</servlet-name>  
28.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
29.         <load-on-startup>1</load-on-startup>  
30.     </servlet>  
31.     <servlet-mapping>  
32.         <servlet-name>smartlink</servlet-name>  
33.         <url-pattern>/</url-pattern>  
34.     </servlet-mapping>  
35.       
36.     <!– 配置OpenSessionInView –>  
37.     <filter>  
38.         <filter-name>hibernateFilter</filter-name>  
39.         <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>  
40.         <!– singleSession默认为true,若设为false则等于没用OpenSessionInView –>  
41.         <init-param>  
42.             <param-name>singleSession</param-name>  
43.             <param-value>true</param-value>  
44.         </init-param>  
45.     </filter>  
46.       
47.     <filter-mapping>  
48.         <filter-name>hibernateFilter</filter-name>  
49.         <url-pattern>/*</url-pattern>  
50.      </filter-mapping>  
51.       
52.     <!– 字符编码过滤器 –>  
53.     <filter>  
54.         <filter-name>CharacterEncodingFilter</filter-name>  
55.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
56.         <init-param>  
57.             <param-name>encoding</param-name>  
58.             <param-value>UTF-8</param-value>  
59.         </init-param>  
60.         <init-param>  
61.             <param-name>forceEncoding</param-name>  
62.             <param-value>true</param-value>  
63.         </init-param>  
64.     </filter>  
65.     <filter-mapping>  
66.         <filter-name>CharacterEncodingFilter</filter-name>  
67.         <url-pattern>/*</url-pattern>  
68.     </filter-mapping>  
69.        
70.   <welcome-file-list>  
71.     <welcome-file>index.html</welcome-file>  
72.     <welcome-file>index.htm</welcome-file>  
73.     <welcome-file>index.jsp</welcome-file>  
74.     <welcome-file>default.html</welcome-file>  
75.     <welcome-file>default.htm</welcome-file>  
76.     <welcome-file>default.jsp</welcome-file>  
77.   </welcome-file-list>  
78.     
79.    <error-page>  
80.         <error-code>404</error-code>  
81.         <location>/static/html/page_404/404.html</location>  
82.     </error-page>  
83. </web-app>  

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xmlns="http://java.sun.com/xml/ns/javaee"         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"         id="WebApp_ID" version="3.0">  <display-name>Smartlink</display-name>  <!-- 配置spring监听器 -->    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>     <!-- 配置初始化监听 -->    <listener>        <listener-class>com.cdsmartlink.utils.listener.WebServerStartListener</listener-class>    </listener>    <!-- 加载配置文件路径 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath*:applicationContext*.xml</param-value>    </context-param>    <!-- springmvc配置 -->    <servlet>        <servlet-name>smartlink</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>smartlink</servlet-name>        <url-pattern>/</url-pattern>    </servlet-mapping>    <!-- 配置OpenSessionInView -->    <filter>        <filter-name>hibernateFilter</filter-name>        <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>        <!-- singleSession默认为true,若设为false则等于没用OpenSessionInView -->        <init-param>            <param-name>singleSession</param-name>            <param-value>true</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>hibernateFilter</filter-name>        <url-pattern>/*</url-pattern>     </filter-mapping>    <!-- 字符编码过滤器 -->    <filter>        <filter-name>CharacterEncodingFilter</filter-name>        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>        <init-param>            <param-name>encoding</param-name>            <param-value>UTF-8</param-value>        </init-param>        <init-param>            <param-name>forceEncoding</param-name>            <param-value>true</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>CharacterEncodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>   <error-page>        <error-code>404</error-code>        <location>/static/html/page_404/404.html</location>    </error-page></web-app>

二、使用示例

1、CacheBaseService

[java] view plain copy

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1. package com.cdsmartlink.utils.service;  
2.   
3. import java.io.Serializable;  
4.   
5. /** 
6.  * 带有缓存的service 
7.  * @author liuyazhuang 
8.  * 
9.  * @param <T> 
10.  */  
11. public interface CacheBaseService<T> extends SinglePKBaseService<T>{  
12.     T get(Serializable id);  
13.   
14.     void save(T[] entity) ;  
15.       
16.     void save(T entity) ;  
17.       
18.     Serializable saveObj(T entity);  
19.       
20.     void update(T entity) ;  
21.   
22.     void delete(T entity) ;  
23.       
24.     public int delete(Serializable id) ;  
25.   
26.     public void delete(Serializable… id) ;  
27.       
28. }  

package com.cdsmartlink.utils.service;import java.io.Serializable;/** * 带有缓存的service * @author liuyazhuang * * @param <T> */public interface CacheBaseService<T> extends SinglePKBaseService<T>{    T get(Serializable id);    void save(T[] entity) ;    void save(T entity) ;    Serializable saveObj(T entity);    void update(T entity) ;    void delete(T entity) ;    public int delete(Serializable id) ;    public void delete(Serializable... id) ;}

2、CacheBaseServiceImpl

[java] view plain copy

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1. package com.cdsmartlink.utils.service.impl;  
2.   
3. import java.io.Serializable;  
4.   
5. import org.springframework.cache.annotation.CacheEvict;  
6. import org.springframework.cache.annotation.CachePut;  
7.   
8. import com.cdsmartlink.utils.service.CacheBaseService;  
9. public abstract class CacheBaseServiceImpl<T> extends SinglePKBaseServiceImpl<T> implements CacheBaseService<T>{  
10.       
11.     @Override  
12.     @CachePut(value=“systemCache”)  
13.     public T get(Serializable id){  
14.         return super.get(id);  
15.     }  
16.       
17.     @Override  
18.     @CacheEvict(value=“systemCache”, allEntries = true, beforeInvocation = true)  
19.     public void save(T[] entity) {  
20.          super.save(entity);  
21.     }  
22.       
23.     @Override  
24.     @CacheEvict(value=“systemCache”, allEntries = true, beforeInvocation = true)  
25.     public void save(T entity){  
26.         super.save(entity);  
27.     }  
28.       
29.     @Override  
30.     @CacheEvict(value=“systemCache”, allEntries = true, beforeInvocation = true)  
31.     public Serializable saveObj(T entity){  
32.         return super.saveObj(entity);  
33.     }  
34.       
35.     @Override  
36.     @CacheEvict(value=“systemCache”, allEntries = true, beforeInvocation = true)  
37.     public void update(T entity){  
38.         super.update(entity);  
39.     }  
40.   
41.     @Override  
42.     @CacheEvict(value=“systemCache”, allEntries = true, beforeInvocation = true)  
43.     public void delete(T entity){  
44.         super.delete(entity);  
45.     }  
46.       
47.     @Override  
48.     @CacheEvict(value=“systemCache”, beforeInvocation = true)  
49.     public int delete(Serializable id){  
50.         return super.delete(id);  
51.     }  
52.   
53.     @Override  
54.     @CacheEvict(value=“systemCache”, allEntries = true, beforeInvocation = true)  
55.     public void delete(Serializable… id){  
56.         super.delete(id);  
57.     }  
58. }  

package com.cdsmartlink.utils.service.impl;import java.io.Serializable;import org.springframework.cache.annotation.CacheEvict;import org.springframework.cache.annotation.CachePut;import com.cdsmartlink.utils.service.CacheBaseService;public abstract class CacheBaseServiceImpl<T> extends SinglePKBaseServiceImpl<T> implements CacheBaseService<T>{    @Override    @CachePut(value="systemCache")    public T get(Serializable id){        return super.get(id);    }    @Override    @CacheEvict(value="systemCache", allEntries = true, beforeInvocation = true)    public void save(T[] entity) {         super.save(entity);    }    @Override    @CacheEvict(value="systemCache", allEntries = true, beforeInvocation = true)    public void save(T entity){        super.save(entity);    }    @Override    @CacheEvict(value="systemCache", allEntries = true, beforeInvocation = true)    public Serializable saveObj(T entity){        return super.saveObj(entity);    }    @Override    @CacheEvict(value="systemCache", allEntries = true, beforeInvocation = true)    public void update(T entity){        super.update(entity);    }    @Override    @CacheEvict(value="systemCache", allEntries = true, beforeInvocation = true)    public void delete(T entity){        super.delete(entity);    }    @Override    @CacheEvict(value="systemCache", beforeInvocation = true)    public int delete(Serializable id){        return super.delete(id);    }    @Override    @CacheEvict(value="systemCache", allEntries = true, beforeInvocation = true)    public void delete(Serializable... id){        super.delete(id);    }}

3、StoreAdvertmentService

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1. package com.cdsmartlink.system.store.service;  
2.   
3. import java.util.List;  
4.   
5. import com.cdsmartlink.system.store.entity.StoreAdvertment;  
6. import com.cdsmartlink.utils.service.CacheBaseService;  
7.   
8. /** 
9.  * 商家广告service 
10.  * @author liuyazhuang 
11.  * 
12.  */  
13. public interface StoreAdvertmentService extends CacheBaseService<StoreAdvertment> {  
14.       
15.     /** 
16.      * 缓存key的前缀 
17.      */  
18.     String STORE_AD = ”store_ad_”;  
19.       
20.     /** 
21.      * 获取广告图 
22.      * @param storeId 
23.      * @param type 
24.      * @param limit 
25.      * @return 
26.      */  
27.     List<StoreAdvertment> getStoreAdvertments(Long storeId, Integer type, int limit);  
28. }  

package com.cdsmartlink.system.store.service;import java.util.List;import com.cdsmartlink.system.store.entity.StoreAdvertment;import com.cdsmartlink.utils.service.CacheBaseService;/** * 商家广告service * @author liuyazhuang * */public interface StoreAdvertmentService extends CacheBaseService<StoreAdvertment> {    /**     * 缓存key的前缀     */    String STORE_AD = "store_ad_";    /**     * 获取广告图     * @param storeId     * @param type     * @param limit     * @return     */    List<StoreAdvertment> getStoreAdvertments(Long storeId, Integer type, int limit);}

4、StoreAdvertmentServiceImpl

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1. package com.cdsmartlink.system.store.service.impl;  
2.   
3. import java.util.List;  
4.   
5. import javax.annotation.Resource;  
6.   
7. import org.springframework.cache.annotation.Cacheable;  
8. import org.springframework.stereotype.Service;  
9.   
10. import com.cdsmartlink.system.store.dao.StoreAdvertmentDao;  
11. import com.cdsmartlink.system.store.entity.StoreAdvertment;  
12. import com.cdsmartlink.system.store.service.StoreAdvertmentService;  
13. import com.cdsmartlink.utils.dao.QueryMode;  
14. import com.cdsmartlink.utils.dao.QueryParse;  
15. import com.cdsmartlink.utils.dao.base.BaseDao;  
16. import com.cdsmartlink.utils.service.impl.CacheBaseServiceImpl;  
17. @Service  
18. public class StoreAdvertmentServiceImpl extends CacheBaseServiceImpl<StoreAdvertment> implements  
19.         StoreAdvertmentService {  
20.     @Resource  
21.     private StoreAdvertmentDao storeAdvertmentDao;  
22.     @Override  
23.     protected BaseDao<StoreAdvertment> getDao() {  
24.         return storeAdvertmentDao;  
25.     }  
26.   
27.     @Override  
28.     protected void setQueryParse(QueryParse<StoreAdvertment> qp,  
29.             QueryMode queryMode) {  
30.           
31.     }  
32.   
33.     @Override  
34.     @Cacheable(value=SYSTEM_CACHE, key=“‘store_ad_’+ #storeId”)//store_ad_为key的自定义字符串前缀，这个前缀可以根据具体业务设定，以免和其他缓存数据冲突，注意，这个字符串前缀要用单引号”括起来，否则会报错  
35.     public List<StoreAdvertment> getStoreAdvertments(Long storeId, Integer type, int limit) {  
36.         return storeAdvertmentDao.getStoreAdvertments(storeId, type, limit);  
37.     }  
38.   
39. }  

package com.cdsmartlink.system.store.service.impl;import java.util.List;import javax.annotation.Resource;import org.springframework.cache.annotation.Cacheable;import org.springframework.stereotype.Service;import com.cdsmartlink.system.store.dao.StoreAdvertmentDao;import com.cdsmartlink.system.store.entity.StoreAdvertment;import com.cdsmartlink.system.store.service.StoreAdvertmentService;import com.cdsmartlink.utils.dao.QueryMode;import com.cdsmartlink.utils.dao.QueryParse;import com.cdsmartlink.utils.dao.base.BaseDao;import com.cdsmartlink.utils.service.impl.CacheBaseServiceImpl;@Servicepublic class StoreAdvertmentServiceImpl extends CacheBaseServiceImpl<StoreAdvertment> implements        StoreAdvertmentService {    @Resource    private StoreAdvertmentDao storeAdvertmentDao;    @Override    protected BaseDao<StoreAdvertment> getDao() {        return storeAdvertmentDao;    }    @Override    protected void setQueryParse(QueryParse<StoreAdvertment> qp,            QueryMode queryMode) {    }    @Override    @Cacheable(value=SYSTEM_CACHE, key="'store_ad_'+ #storeId")//store_ad_为key的自定义字符串前缀，这个前缀可以根据具体业务设定，以免和其他缓存数据冲突，注意，这个字符串前缀要用单引号''括起来，否则会报错    public List<StoreAdvertment> getStoreAdvertments(Long storeId, Integer type, int limit) {        return storeAdvertmentDao.getStoreAdvertments(storeId, type, limit);    }}

转自:http://blog.csdn.net/l1028386804/article/details/48464111