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我想，在我的春節（3.2）+ Hibernate的（4.2）的應用程序，以使query_cache永不過期Spring + Hibernate的+的Ehcache使query_cache永不過期
我嘗試了以下配置，緩存工作，但120秒鐘後，我的緩存查詢訪問數據庫，即使timeToIdleSeconds和timeToLiveSeconds被設置爲一個值大於120
<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd"
updateCheck="false">
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="1800"
timeToLiveSeconds="3600"
overflowToDisk="true"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="1800" />
<cache name="org.hibernate.cache.StandardQueryCache"
maxEntriesLocalHeap="25"
eternal="false"
timeToIdleSeconds="1800"
timeToLiveSeconds="3600">
<persistence strategy="localTempSwap"/>
</cache>
<cache name="org.hibernate.cache.UpdateTimestampsCache"
maxEntriesLocalHeap="5000"
timeToIdleSeconds="1800"
timeToLiveSeconds="3600"
eternal="false">
<persistence strategy="localTempSwap" />
</cache>
</ehcache>
我包括了Ehcache使用：
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>2.6.6</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<version>4.2.6.Final</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.6.1</version>
</dependency>
注：timeToIdleSeconds =「0」和timeToLiveSeconds =「0」，但沒有運氣，我得到了相同的行爲，120秒，緩存被清除：我已經與嘗試。以下是完整的日誌：
21:52:11,128 DEBUG StandardQueryCache:131 - Checking cached query results in region: org.hibernate.cache.internal.StandardQueryCache
21:52:11,129 DEBUG EhcacheGeneralDataRegion:69 - key: sql: select this_.townID as townID1_33_1_, this_.name as name2_33_1_, this_.zip_code as code_pos3_33_1_, this_.regionID as regionID4_33_1_, region2_.regionId as regionId1_27_0_, region2_.name as name2_27_0_ from town this_ left outer join region region2_ on this_.regionID=region2_.regionId; parameters: ; transformer: org.hibernate.transform.CacheableRe[email protected]
21:52:11,129 DEBUG EhcacheGeneralDataRegion:76 - Element for key sql: select this_.townID as townID1_33_1_, this_.name as name2_33_1_, this_.zip_code as code_pos3_33_1_, this_.regionID as regionID4_33_1_, region2_.regionId as regionId1_27_0_, region2_.name as name2_27_0_ from town this_ left outer join region region2_ on this_.regionID=region2_.regionId; parameters: ; transformer: [email protected] is null
21:52:11,129 DEBUG StandardQueryCache:137 - Query results were not found in cache
Hibernate: select this_.townID as townID1_33_1_, this_.name as name2_33_1_, this_.zip_code as code_pos3_33_1_, this_.regionID as regionID4_33_1_, region2_.regionId as regionId1_27_0_, region2_.name as name2_27_0_ from town this_ left outer join region region2_ on this_.regionID=region2_.regionId
21:52:11,137 DEBUG StandardQueryCache:104 - Caching query results in region: org.hibernate.cache.internal.StandardQueryCache; timestamp=5657678361137154
21:52:11,138 DEBUG EhcacheGeneralDataRegion:100 - key: sql: select this_.townID as townID1_33_1_, this_.name as name2_33_1_, this_.zip_code as code_pos3_33_1_, this_.regionID as regionID4_33_1_, region2_.regionId as regionId1_27_0_, region2_.name as name2_27_0_ from town this_ left outer join region region2_ on this_.regionID=region2_.regionId; parameters: ; transformer: [email protected] value: [5657678361137154, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
我激活了二級高速緩存和query_cache使用：
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>
<prop key="hibernate.cache.provider_configuration_file_resource_path">/ehcache.xml</prop>
編輯：
我的查詢使用標準的API生成：
public List<Town> readAll() {
Criteria crit = getCurrentSession().createCriteria(Town.class);
crit.setCacheable(true);
return crit.list();
}
我正在使用讀寫方式作爲CacheConcurrencyStrat埃及。所以，我在我的實體鎮我有這樣的：
<cache usage="read-write" />
編輯： 我剛看到這個開始時我的應用程序：
22:10:45,570 WARN ConfigurationFactory:136 - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: file:/C:/Program%20Files/Apache%20Software%20Foundation/Tomcat%207.0/work/Catalina/localhost/projet/loader/ehcache-failsafe.xml
22:00:49,812 INFO UpdateTimestampsCache:61 - HHH000250: Starting update timestamps cache at region: org.hibernate.cache.spi.UpdateTimestampsCache
22:00:49,818 WARN AbstractEhcacheRegionFactory:180 - HHH020003: Could not find a specific ehcache configuration for cache named [org.hibernate.cache.spi.UpdateTimestampsCache]; using defaults.
我認爲配置我在WEB-INF/ehcache的製作.xml不被視爲 出了什麼問題？這是錯誤的地方？
您是否向查詢查詢的表中寫入數據？你確定查詢與前一個查詢完全相同，參數完全相同嗎？ –
@JBNizet我更新了我的問題 – Hidalgo
我的測試場景很簡單：我觸發了我的JSF頁面，其中顯示城鎮列表，查詢被執行，所以實體被放到緩存中，1分鐘後，我刷新頁面，我看到我的日誌中沒有選擇查詢（緩存正在工作），並且我等待了2分鐘，然後再次刷新，結果：在緩存中找不到查詢結果。我會用更多的日誌更新我的問題。 – Hidalgo