Ehcache日志记录示例

末蓝、 2023-02-15 05:07 3阅读 0赞

Ehcache [使用SLF4j logging][SLF4j logging]来记录内容，并在项目类路径中放置slf4j实现，在此示例中，我们使用logback。

使用的工具 ：

1.  高速缓存2.9
2.  Maven 3
3.  重新登录1.0.13

## 1.项目目录结构 ##

![ehcache-logging-1][]![ehcache-logging-1][ehcache-logging-1 1]

## 2.项目依赖 ##

pom.xml

<dependency>
    		<groupId>net.sf.ehcache</groupId>
    		<artifactId>ehcache</artifactId>
    		<version>2.9.0</version>
    	</dependency>
    	<dependency>
    		<groupId>ch.qos.logback</groupId>
    		<artifactId>logback-classic</artifactId>
    		<version>1.0.13</version>
    	</dependency>

## 3. Logback.xml ##

创建一个`logback.xml`文件，并将其放入`src/main/resources`文件夹。

logback.xml

<?xml version="1.0" encoding="UTF-8"?>
    <configuration>
    
    	//Log everything to console
    	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    	  <layout class="ch.qos.logback.classic.PatternLayout">
    		<Pattern>
    			%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%n
    		</Pattern>
    	  </layout>
    	</appender>
    
    	<logger name="com.mkyong.cache" level="debug"
    		additivity="false">
    		<appender-ref ref="STDOUT" />
    	</logger>
    
    	<root level="error">
    		<appender-ref ref="STDOUT" />
    	</root>
    
    </configuration>

## 4.记录 ##

一个简单的Java Ehcache示例。

HelloEhCache.java

package com.mkyong.cache;
    
    import net.sf.ehcache.Cache;
    import net.sf.ehcache.CacheManager;
    import net.sf.ehcache.Element;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    public class HelloEhCache{
    	
    	private final static Logger logger = LoggerFactory.getLogger(HelloEhCache.class);
    	
    	public static void main(String[] args) {
    		
    		logger.debug("Starting Ehcache...");
    		
    		CacheManager cm = CacheManager.getInstance();
    		cm.addCache("cache1");
    		Cache cache = cm.getCache("cache1");
    		
    		cache.put(new Element("1","Jan"));
    		cache.put(new Element("2","Feb"));
    		cache.put(new Element("3","Mar"));
    		
    		logger.debug("cache : {}", cache);
    		
    		Element ele = cache.get("2");
    		
    		String output = (ele == null ? null : ele.getObjectValue().toString());
    		System.out.println(output);
    		
    		logger.debug("element : {}", ele);
    		
    		cm.shutdown();
    		logger.debug("Shutting down Ehcache...");
    	}
    	
    }

输出量

2015-01-20 07:35:13 [main] DEBUG com.mkyong.cache.HelloEhCache - Starting Ehcache...
    2015-01-20 07:35:14 [main] DEBUG com.mkyong.cache.HelloEhCache - cache : [ name = cache1 status = STATUS_ALIVE eternal = false overflowToDisk = true maxEntriesLocalHeap = 10000 maxEntriesLocalDisk = 10000000 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 120 timeToIdleSeconds = 120 persistence = LOCALTEMPSWAP diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: ; orderedCacheEventListeners:  maxBytesLocalHeap = 0 overflowToOffHeap = false maxBytesLocalOffHeap = 0 maxBytesLocalDisk = 0 pinned = false ]
    Feb
    2015-01-20 07:35:14 [main] DEBUG com.mkyong.cache.HelloEhCache - element : [ key = 2, value=Feb, version=1, hitCount=1, CreationTime = 1421710514063, LastAccessTime = 1421710514063 ]
    2015-01-20 07:35:14 [main] DEBUG com.mkyong.cache.HelloEhCache - Shutting down Ehcache...

更改为总调试模式：

logback.xml

输出量

07:34:38,892 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
    07:34:38,892 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
    07:34:38,892 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback.xml] at [file:/C:/Users/mkyong/workspace2/JavaCache/target/classes/logback.xml]
    07:34:38,939 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - debug attribute not set
    07:34:38,939 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
    07:34:38,955 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [STDOUT]
    07:34:39,001 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - This appender no longer admits a layout as a sub-component, set an encoder instead.
    07:34:39,001 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - To ensure compatibility, wrapping your layout in LayoutWrappingEncoder.
    07:34:39,001 |-WARN in ch.qos.logback.core.ConsoleAppender[STDOUT] - See also http://logback.qos.ch/codes.html#layoutInsteadOfEncoder for details
    07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [com.mkyong.cache] to DEBUG
    07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting additivity of logger [com.mkyong.cache] to false
    07:34:39,001 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[com.mkyong.cache]
    07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to DEBUG
    07:34:39,001 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [STDOUT] to Logger[ROOT]
    07:34:39,001 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
    07:34:39,001 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@6ede1f90 - Registering current configuration as safe fallback point
    
    2015-01-20 07:34:39 [main] DEBUG com.mkyong.cache.HelloEhCache - Starting Ehcache...
    2015-01-20 07:34:39 [main] WARN  n.s.e.config.ConfigurationFactory - No configuration found. Configuring ehcache from ehcache-failsafe.xml  found in the classpath: jar:file:/G:/maven/repo/net/sf/ehcache/ehcache/2.9.0/ehcache-2.9.0.jar!/ehcache-failsafe.xml
    2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationFactory - Configuring ehcache from URL: jar:file:/G:/maven/repo/net/sf/ehcache/ehcache/2.9.0/ehcache-2.9.0.jar!/ehcache-failsafe.xml
    2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationFactory - Configuring ehcache from InputStream
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.config.BeanHandler - Ignoring ehcache attribute xmlns:xsi
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.config.BeanHandler - Ignoring ehcache attribute xsi:noNamespaceSchemaLocation
    2015-01-20 07:34:39 [main] DEBUG n.s.e.config.DiskStoreConfiguration - Disk Store Path: C:\Users\mkyong\AppData\Local\Temp\
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.CacheManager - Creating new CacheManager with default config
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.util.PropertyUtil - propertiesString is null.
    2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationHelper - No CacheManagerEventListenerFactory class specified. Skipping...
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.Cache - No BootstrapCacheLoaderFactory class specified. Skipping...
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.Cache - CacheWriter factory not configured. Skipping...
    2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationHelper - No CacheExceptionHandlerFactory class specified. Skipping...
    2015-01-20 07:34:39 [main] WARN  net.sf.ehcache.DiskStorePathManager - diskStorePath 'C:\Users\mkyong\AppData\Local\Temp' is already used by an existing CacheManager either in the same VM or in a different process.
    The diskStore path for this CacheManager will be set to C:\Users\mkyong\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore.
    To avoid this warning consider using the CacheManager factory methods to create a singleton CacheManager or specifying a separate ehcache configuration (ehcache.xml) for each CacheManager instance.
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.DiskStorePathManager - Using diskstore path C:\Users\mkyong\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.DiskStorePathManager - Holding exclusive lock on C:\Users\mkyong\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore\.ehcache-diskstore.lock
    2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.data
    2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.index
    2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Matching data file missing (or empty) for index file. Deleting index file C:\Users\mkyong\AppData\Local\Temp\ehcache_auto_created8095047663436693875diskstore\cache1.index
    2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.index
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: LOCAL_OFFHEAP_SIZE
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: LOCAL_OFFHEAP_SIZE_BYTES
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: WRITER_QUEUE_LENGTH
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: REMOTE_SIZE
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Pass-Through Statistic: LAST_REJOIN_TIMESTAMP
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: OFFHEAP_GET
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: OFFHEAP_PUT
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: OFFHEAP_REMOVE
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: XA_COMMIT
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: XA_ROLLBACK
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: XA_RECOVERY
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: CLUSTER_EVENT
    2015-01-20 07:34:39 [main] DEBUG n.s.e.s.e.ExtendedStatisticsImpl - Mocking Operation Statistic: NONSTOP
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.Cache - Initialised cache: cache1
    2015-01-20 07:34:39 [main] DEBUG n.s.e.config.ConfigurationHelper - CacheDecoratorFactory not configured for defaultCache. Skipping for 'cache1'.
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.store.disk.Segment - put added 0 on heap
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.store.disk.Segment - put added 0 on heap
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.store.disk.Segment - put added 0 on heap
    2015-01-20 07:34:39 [main] DEBUG com.mkyong.cache.HelloEhCache - cache : [ name = cache1 status = STATUS_ALIVE eternal = false overflowToDisk = true maxEntriesLocalHeap = 10000 maxEntriesLocalDisk = 10000000 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 120 timeToIdleSeconds = 120 persistence = LOCALTEMPSWAP diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: ; orderedCacheEventListeners:  maxBytesLocalHeap = 0 overflowToOffHeap = false maxBytesLocalOffHeap = 0 maxBytesLocalDisk = 0 pinned = false ]
    Feb
    2015-01-20 07:34:39 [main] DEBUG com.mkyong.cache.HelloEhCache - element : [ key = 2, value=Feb, version=1, hitCount=1, CreationTime = 1421710479220, LastAccessTime = 1421710479220 ]
    2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault removed 0 from heap
    2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault added 0 on disk
    2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault removed 0 from heap
    2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault added 0 on disk
    2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault removed 0 from heap
    2015-01-20 07:34:39 [cache1.data] DEBUG net.sf.ehcache.store.disk.Segment - fault added 0 on disk
    2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.index
    2015-01-20 07:34:39 [main] DEBUG n.s.e.store.disk.DiskStorageFactory - Failed to delete file cache1.data
    2015-01-20 07:34:39 [main] DEBUG net.sf.ehcache.DiskStorePathManager - Deleted directory ehcache_auto_created8095047663436693875diskstore
    2015-01-20 07:34:39 [main] DEBUG com.mkyong.cache.HelloEhCache - Shutting down Ehcache...

## 下载源代码 ##

> 下载它– [Java-Ehcache-logging.zip][] （9 KB）

## 参考文献 ##

1.  [登录项目][Link 1]
2.  [SLF4j手册][SLF4j]
3.  [Ehcache日志记录][SLF4j logging]

标签： [ehcache][] [Java缓存][Java]

> 翻译自: [https://mkyong.com/ehcache/ehcache-logging-example/][https_mkyong.com_ehcache_ehcache-logging-example]

[SLF4j logging]: http://ehcache.org/documentation/2.8/operations/logging
[ehcache-logging-1]: http://imgconvert.csdnimg.cn/aHR0cDovL3d3dy5ta3lvbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE1LzAxL2VoY2FjaGUtbG9nZ2luZy0xLnBuZw?x-oss-process=image/format,png
[ehcache-logging-1 1]: http://imgconvert.csdnimg.cn/aHR0cHM6Ly93d3cubWt5b25nLmNvbS93cC1jb250ZW50L3VwbG9hZHMvMjAxNS8wMS9laGNhY2hlLWxvZ2dpbmctMS5wbmc?x-oss-process=image/format,png
[Java-Ehcache-logging.zip]: http://www.mkyong.com/wp-content/uploads/2015/01/Java-Ehcache-logging.zip
[Link 1]: http://logback.qos.ch/
[SLF4j]: http://www.slf4j.org/manual.html
[ehcache]: https://mkyong.com/tag/ehcache/
[Java]: https://mkyong.com/tag/java-cache/
[https_mkyong.com_ehcache_ehcache-logging-example]: https://mkyong.com/ehcache/ehcache-logging-example/