Ehcache Cache Usage

A: Detailed configuration steps

1. Add Ehcache.xml File

Add the Ehcache.xml file to the SRC path. Ehcache.xml file contents are as follows

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2. <ehcache>
4. <diskstore path="Java.io.tempdir" />
6. <defaultcache maxelementsinmemory="$" eternal="false"
8. timetoidleseconds="timetoliveseconds=" overflowtodisk= " true" />
10. <cache name="Ehcachename" maxelementsinmemory="10000 "
12. eternal="false" timetoidleseconds="300000" timetoliveseconds="600000"
14. overflowtodisk="true" />
16. </ehcache>

2. Add Spring configuration file

Add in the Appliccontext.xml file

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2. <Bean id="cachemanagerfactory"
4. class="Org.springframework.cache.ehcache.EhCacheManagerFactoryBean"
6. p:configlocation="Classpath:ehcache.xml"></beans>
10. <!--statement CacheManager--
12. <Bean id="CacheManager" class= "Org.springframework.cache.ehcache.EhCacheCacheManager "   
14. p:cachemanager-ref="Cachemanagerfactory" ></beans>

Two: Use

1, defining the Ehcache tool method

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2. Public class EHCache {
4. private static final CacheManager CacheManager = new CacheManager ();
6. private cache cache;
8. Public Ehcacheservice () {
10. This.cache=cachemanager.getcache ("Ehcachename")
12. }
16. Public Cache GetCache () {
18. return cache;
20. }
24. public void Setcache (cache cache) {
26. This.cache = cache;
28. }
36. /* 
38. * Get data from the cache by name
40. */
42. Public Object getcacheelement (String CacheKey) throws Exception {
44. Net.sf.ehcache.Element e = Cache.get (CacheKey);
46. if (e = = null) {
48. return null;
50. }
52. return E.getvalue ();
54. }
56. /* 
58. * Add an object to the cache
60. */
62. public void Addtocache (String cacheKey, Object result) throws Exception {
64. Element element = new Element (CacheKey, result);
66. Cache.put (Element);
68. }
74. }

2, test

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2. Public class test{
4. EHCache EHCache = new EHCache ();
6. public void Test () {
8. //test storing JSON objects in cache
10. Jsonobject obj = new Jsonobject ();
12. Obj.put ("name","LSZ");
14. Ehcache.addtocache ("Cache_json", obj);
18. //Get from the cache
20. Jsonobject getobj = (jsonobject) ehcache.getcacheelement ("Cache_json");
22. System.out.println (Getobj.tostring ());
24. }
26. }

Three: Problem solving

1, the framework environment is self-built, add Ehcache after the run error:

Org.springframework.beans.factory.parsing.BeanDefinitionParsingException:Configuration problem:unable to locate Spring Namespacehandler for XML schema namespace [Http://www.springframework.org/schema/cache]
Offending Resource:class path resource [Applicationcontext.xml]

This problem occurs because in the Applicationcontext.xml file, you add more

<cache:annotation-driven cache-manager= "CacheManager"/> Remove it

2, the framework needs to add a jar package

Spring-context-support-3.2.0.release.jar

Spring-context-3.2.0.release.jar

Source: http://blog.csdn.net/lishuangzhe7047/article/details/41680921

Ehcache Cache Usage