無法運行Grails ACL插件：使用名稱'afterAclCollectionRead'創建bean時出錯

Question

我想使用Spring Security ACL plugin。我跟着從這裏正式文檔教程：http://grails-plugins.github.io/grails-spring-security-acl/docs/manual/guide/tutorial.html

運行時我得到了以下錯誤示例：

Configuring Spring Security Core ... 
... finished configuring Spring Security Core 
Configuring Spring Security ACL ... 
... finished configuring Spring Security ACL 
| Error 2015-07-21 15:06:13,267 [localhost-startStop-1] ERROR context.GrailsContextLoaderListener - Error initializing the application: Error creating bean with name 'afterAclCollectionRead': Cannot resolve reference to bean 'aclService' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityAclAclService': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCache': Cannot resolve reference to bean 'ehcacheAclCache' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehcacheAclCache': Cannot resolve reference to bean 'aclCacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCacheManager': Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
Message: Error creating bean with name 'afterAclCollectionRead': Cannot resolve reference to bean 'aclService' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityAclAclService': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCache': Cannot resolve reference to bean 'ehcacheAclCache' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehcacheAclCache': Cannot resolve reference to bean 'aclCacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCacheManager': Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
    Line | Method 
->> 266 | run  in java.util.concurrent.FutureTask 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 1142 | runWorker in java.util.concurrent.ThreadPoolExecutor 
| 617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker 
^ 745 | run  in java.lang.Thread 
Caused by BeanCreationException: Error creating bean with name 'springSecurityAclAclService': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCache': Cannot resolve reference to bean 'ehcacheAclCache' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehcacheAclCache': Cannot resolve reference to bean 'aclCacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCacheManager': Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
->> 266 | run  in java.util.concurrent.FutureTask 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 1142 | runWorker in java.util.concurrent.ThreadPoolExecutor 
| 617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker 
^ 745 | run  in java.lang.Thread 
Caused by BeanCreationException: Error creating bean with name 'aclCache': Cannot resolve reference to bean 'ehcacheAclCache' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ehcacheAclCache': Cannot resolve reference to bean 'aclCacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCacheManager': Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
->> 266 | run  in java.util.concurrent.FutureTask 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 1142 | runWorker in java.util.concurrent.ThreadPoolExecutor 
| 617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker 
^ 745 | run  in java.lang.Thread 
Caused by BeanCreationException: Error creating bean with name 'ehcacheAclCache': Cannot resolve reference to bean 'aclCacheManager' while setting bean property 'cacheManager'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCacheManager': Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
->> 266 | run  in java.util.concurrent.FutureTask 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 1142 | runWorker in java.util.concurrent.ThreadPoolExecutor 
| 617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker 
^ 745 | run  in java.lang.Thread 
Caused by BeanCreationException: Error creating bean with name 'aclCacheManager': Invocation of init method failed; nested exception is net.sf.ehcache.CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
->> 266 | run  in java.util.concurrent.FutureTask 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 1142 | runWorker in java.util.concurrent.ThreadPoolExecutor 
| 617 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker 
^ 745 | run  in java.lang.Thread 
Caused by CacheException: Another unnamed CacheManager already exists in the same VM. Please provide unique names for each CacheManager in the config or do one of following: 
1. Use one of the CacheManager.create() static factory methods to reuse same CacheManager with same name or create one if necessary 
2. Shutdown the earlier cacheManager before creating new one with same name. 
The source of the existing CacheManager is: DefaultConfigurationSource [ ehcache.xml or ehcache-failsafe.xml ] 
->> 628 | assertNoCacheManagerExistsWithSameName in net.sf.ehcache.CacheManager 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
| 392 | init  in  '' 
| 270 | <init> . in  '' 
| 266 | run  in java.util.concurrent.FutureTask 
| 1142 | runWorker in java.util.concurrent.ThreadPoolExecutor 
| 617 | run  in java.util.concurrent.ThreadPoolExecutor$Worker 
^ 745 | run . . . in java.lang.Thread 
Error | 
Forked Grails VM exited with error 

是什麼原因造成這個錯誤？

Answer 1

嘗試按照這樣的解釋：http://markushanses.blogspot.fr/2015/06/grails-250-mit-spring-security-acl.html

基本上，你需要添加到您的resources.groovy文件這樣的：

import org.springframework.cache.ehcache.EhCacheManagerFactoryBean 

beans = { 
    aclCacheManager(EhCacheManagerFactoryBean) { 
     shared = true 
    } 
}