我碰到一个比较纳闷的问题:
我定义了一个类为:
Java code
/**
- AcegiCacheManagerFactoryBean 负责初始化缓存后生成AcegiCacheManager
- 调用 authenticationService 来获取资源和用户实例，并加入UserCache 和 ResourceCache 中
-
@author zhanghg
*
*/
public class AcegiCacheManagerFactoryBean implements FactoryBean,InitializingBean {protected final Log logger = LogFactory.getLog(getClass()); private AcegiCacheManager acegiCacheManager; private AuthenticationService authenticationService; private UserCache userCache; private ResourceCache resourceCache; public Object getObject() throws Exception { return this.acegiCacheManager; } @SuppressWarnings("unchecked") public Class getObjectType() { return (this.acegiCacheManager != null ? this.acegiCacheManager.getClass() : AcegiCacheManager.class); } public boolean isSingleton() { return true; } public void afterPropertiesSet() throws Exception { logger.info("Initializing SecurityCacheManager"); Assert.notNull(userCache,"userCache should not be null"); Assert.notNull(resourceCache,"resourceCache should not be null"); Assert.notNull(authenticationService,"Authentication Service should not be null"); //初始化缓存 List<Staff> users =authenticationService.getUsers(); for (Iterator iter = users.iterator(); iter.hasNext();) { UserDetails user = (UserDetails) iter.next(); userCache.putUserInCache(user); } List<Resource> rescs =authenticationService.getResources(); for (Iterator iter = rescs.iterator(); iter.hasNext();) { Resource resc = (Resource) iter.next(); resourceCache.putResourceInCache(resc); } //生成 acegiCacheManager this.acegiCacheManager = new AcegiCacheManager(userCache,resourceCache); } //-------------setters----------- public void setAcegiCacheManager(AcegiCacheManager acegiCacheManager) { this.acegiCacheManager = acegiCacheManager; } @Required public void setAuthenticationService(AuthenticationService authenticationService) { this.authenticationService = authenticationService; } @Required public void setUserCache(UserCache userCache) { this.userCache = userCache; } @Required public void setResourceCache(ResourceCache resourceCache) { this.resourceCache = resourceCache; }
}
同时还定义了一个类为:
[code=Java]
/**
- AcegiCacheManager是对缓存进行统一管理，以屏蔽其它类对缓存的直接操作
- 对缓存中的用户和资源进行初始化、增、删、改、清空等操作
-
@author zhanghg
*
*/
public class AcegiCacheManager {private UserCache userCache; private ResourceCache resourceCache; //rescTypeMapp 映射资源类型对应的资源的一对多关系，以便快速查找。 //如method类型对应哪些资源实例，url资源类型对应哪些资源实例 private Map<String,List<String>> rescTypeMapping; //-----constructor using fields @SuppressWarnings("unchecked") public AcegiCacheManager(UserCache userCache, ResourceCache resourceCache) { System.out.println("实例化SecurityManager"); this.userCache = userCache; this.resourceCache = resourceCache; // 获取所有的资源,以初始化 rescTypeMapping rescTypeMapping = new HashMap<String,List<String>>(); List<String> resclist = resourceCache.getAllResources(); for (Iterator iter = resclist.iterator(); iter.hasNext();) { String resString = (String) iter.next(); System.out.println("初始化SecurityCacheManager时取得资源信息的path:"+resString); ResourceDetails resc = resourceCache.getResourceFromCache(resString); System.out.println("输出该资源的type类型为:"+resc.getResourceType()); List<String> typelist = rescTypeMapping.get(resc.getResourceType()); if(typelist==null){ typelist = new ArrayList<String>(); rescTypeMapping.put(resc.getResourceType(), typelist); } typelist.add(resString); } System.out.println("输出最终的resTypeMapping信息:"+rescTypeMapping.size()); } //-----get from cache methods public UserDetails getUser(String username) { return userCache.getUserFromCache(username); } public ResourceDetails getResourceFromCache(String resString) { return resourceCache.getResourceFromCache(resString); } //-----remove from cache methods public void removeUser(String username){ userCache.removeUserFromCache(username); } public void removeResource(String resString){ ResourceDetails rd = resourceCache.getResourceFromCache(resString); List<String> typelist = rescTypeMapping.get(rd.getResourceType()); typelist.remove(resString); resourceCache.removeResourceFromCache(resString); } //------add to cache methods public void addUser(String username, String password, boolean enabled, boolean accountNonExpired, boolean credentialsNonExpired, boolean accountNonLocked, GrantedAuthority[] authorities){ User user = new User(username, password, enabled, accountNonExpired, credentialsNonExpired, accountNonLocked, authorities); addUser(user); } public void addUser(UserDetails user){ System.out.println("进来,添加user至缓存"); userCache.putUserInCache(user); } public void addResource(String resourceName,String resString, String resType, GrantedAuthority[] authorities){ Resource rd = new Resource(resourceName,resString, resType, authorities); addResource(rd); } public void addResource(ResourceDetails rd){ List<String> typelist = rescTypeMapping.get(rd.getResourceType()); if(typelist==null){ typelist = new ArrayList<String>(); rescTypeMapping.put(rd.getResourceType(), typelist); } typelist.add(rd.getPath()); resourceCache.putResourceInCache(rd); } // ------renovate cache methods public void renovateUser(String orgUsername, String username, String password, boolean enabled, boolean accountNonExpired, boolean credentialsNonExpired, boolean accountNonLocked, GrantedAuthority[] authorities){ removeUser(orgUsername); addUser(username, password, enabled, accountNonExpired, credentialsNonExpired, accountNonLocked, authorities); } public void renovateUser(String orgUsername, UserDetails user){ removeUser(orgUsername); addUser(user); } public void renovateResource(String resName,String orgResString,String resString, String resType, GrantedAuthority[] authorities ){ removeResource(orgResString); addResource(resName,resString, resType, authorities); } public void renovateResource(String orgResString,ResourceDetails rd){ removeResource(orgResString); addResource(rd); } //-------getters and setters------------------- public void clearResources() { rescTypeMapping = new HashMap<String,List<String>>(); resourceCache.removeAllResources(); } public void setResourceCache(ResourceCache resourceCache) { this.resourceCache = resourceCache; } public void setUserCache(UserCache userCache) { this.userCache = userCache; } /** * 根据资源类型,在rescTypeMapping职工获取所有该类型资源的对应的resource string * @param resType * @return List */ public List<String> getResourcesByType(String resType) { return rescTypeMapping.get(resType); } /** * 获取所有资源的对应的resource string * @return */ public List<String> getAllResources(){ return resourceCache.getAllResources(); } /** * 获取所有用户实例对应的user name * @return */ @SuppressWarnings("unchecked") public List<String> getAllUsers(){ EhCacheBasedUserCache ehUserCache = (EhCacheBasedUserCache)userCache; return ehUserCache.getCache().getKeys(); }
}
[/code]
同时我的一个类:StaffManager中要用到AcegiCacheManager类
public class StaffManager {
// 统一定义所有HQL
private static final String QUERY_ADMIN_HQL = "select staff from Staff staff join staff.roles as role where role.roleName=?";
private final Logger logger = LoggerFactory.getLogger(StaffManager.class);
//自动装配该bean的属性
@Autowired
private StaffDao staffDao;
@Autowired
private RoleDao roleDao;
@Autowired
private PrivilegeDao privilegeDao;
@Autowired
private ResourceDao resourceDao;
private AcegiCacheManager acegiCacheManager;
通过@Reqiured进行了注解.
其中我在配置文件配置了bean:
但是为什么staffManager当中,取到的acegiCacheManager老是null呢?
当然通过上下文的getBean("acegiCacheManager")是可以取到这个类的,不是null
[b]问题补充：[/b]
楼上的还还是不明白:
如果通过在xml文件中注册bean:
那么我应该在staffManager中怎样写才能取得不为null啊?
而如果我通过@Component("acegiCacheManager")进行注解,
我在staffManager中进行@Autowired,但是为什么提示:
Could not autowire field: private com.sdcncsi.security.cache.manager.AcegiCacheManager,com.sdcncsi.service.sys.StaffManager注解错误?
我该 怎样做?
另外factory bean会在服务启动时自动的启动这个bean吗?
而AcegiCacheManager是在AcegiCacheManagerFactoryBean中使用的,但是如果在其它类中我们怎样来引用它,直接注入AcegiCacheManager吗?但是这个类没有默认构造方法,不能实例化.
我现在都晕了,搞的好头大,请各位大人帮忙啊.
[b]问题补充：[/b]
lovewhzlq说通过这样改定就可以:
@Autowired
private ResourceDao resourceDao;
@Autowired
private AcegiCacheManager acegiCacheManager;
我试了后不行:
1)我的配置文件中配置了:
它 是指向工厂类的,这样在启动的时候可以初始化信息.
后来,我把AcegiCacheManagerFactoryBean进行了@Component("acegiCacheManager")
并且在StaffManager中对 AcegiCacheManager acegiCacheManager 启用@Autowired,
提示:Could not autowire field:
rror creating bean with name 'acegiCacheManager': FactoryBean which is currently in creation returned null from getObject
我该如何做才对啊?
