Shiro核心類有哪些

這篇文章主要講解了“Shiro核心類有哪些”，文中的講解內(nèi)容簡(jiǎn)單清晰，易于學(xué)習(xí)與理解，下面請(qǐng)大家跟著小編的思路慢慢深入，一起來(lái)研究和學(xué)習(xí)“Shiro核心類有哪些”吧！

一：SessionManager

1.簡(jiǎn)介

Shiro提供了完整的會(huì)話管理功能，不依賴底層容器，JavaSE應(yīng)用和JavaEE應(yīng)用都可以使用。

SessionManager管理著應(yīng)用中所有Subject的會(huì)話，包括會(huì)話的創(chuàng)建，維護(hù)，刪除，失效，驗(yàn)證等工作。

2.SessionManager接口

Session start(SessionContext context); 基于指定的上下文初始化數(shù)據(jù)啟動(dòng)新會(huì)話

Session getSession(SessionKey key) throws SessionException;

根據(jù)指定的SessionKey檢索會(huì)話，如果找不到則返回null。如果找到了會(huì)話，但會(huì)話但無(wú)效（已停止或已過(guò)期）則拋出SessionException異常。

3.AbstractSessionManager implements SessionManager

 public void setGlobalSessionTimeout(long globalSessionTimeout)

 設(shè)置全局Session的超時(shí)時(shí)間，默認(rèn)為30分鐘。設(shè)置為負(fù)數(shù)表示永遠(yuǎn)都不超時(shí)。

4.AbstractValidatingSessionManager extends AbstractNativeSessionManager

protected boolean sessionValidationSchedulerEnabled;

是否進(jìn)行Session驗(yàn)證

protected long sessionValidationInterval;

Session驗(yàn)證的時(shí)間間隔，默認(rèn)為一小時(shí)

5.public class DefaultSessionManager extends AbstractValidatingSessionManager

private boolean deleteInvalidSessions;

是否刪除無(wú)效的Session

6.public class DefaultWebSessionManager extends DefaultSessionManager

  private boolean sessionIdCookieEnabled;

  是否從Cookie中獲取sessionId

  private boolean sessionIdUrlRewritingEnabled;

二：AuthenticationToken

AuthenticationToken 用于收集用戶提交的身份（如用戶名）及憑據(jù)（如密碼）。Shiro會(huì)調(diào)用CredentialsMatcher對(duì)象的

doCredentialsMatch方法對(duì)AuthenticationInfo對(duì)象和AuthenticationToken進(jìn)行匹配。匹配成功則表示主體（Subject）認(rèn)證成功，否則表示認(rèn)證失敗。

一般情況下UsernamePasswordToken已經(jīng)可以滿足我們的大我數(shù)需求。當(dāng)我們遇到需要聲明自己的Token類時(shí)，可以根據(jù)需求來(lái)實(shí)現(xiàn)AuthenticationToken，

HostAuthenticationToken或RememberMeAuthenticationToken。

三：Realm

Realm是安全驗(yàn)證數(shù)據(jù)的數(shù)據(jù)源。

1.public interface Realm 

String getName();

boolean supports(AuthenticationToken token);

AuthenticationInfo getAuthenticationInfo(AuthenticationToken token) throws AuthenticationException;

四：Subject與SubjectFactory

1.public interface Subject

一個(gè)Subject代表著應(yīng)用的一個(gè)用戶。

Object getPrincipal();

Subject的唯一標(biāo)識(shí)，比如用戶名，用戶ID，手機(jī)號(hào)等

PrincipalCollection getPrincipals();

boolean isPermitted(String permission);

boolean isPermitted(Permission permission);

boolean[] isPermitted(String... permissions);

boolean[] isPermitted(List<Permission> permissions);

void checkPermission(String permission) throws AuthorizationException;

void checkRole(String roleIdentifier) throws AuthorizationException;

void login(AuthenticationToken token) throws AuthenticationException;

boolean isAuthenticated();

boolean isRemembered();

2.public interface WebSubject extends Subject, RequestPairSource

ServletRequest getServletRequest();

ServletResponse getServletResponse();

3.public class DelegatingSubject implements Subject

  protected PrincipalCollection principals;

  protected boolean authenticated;

  protected String host;

  protected Session session;

  protected boolean sessionCreationEnabled;

  protected transient SecurityManager securityManager;

4.public class WebDelegatingSubject extends DelegatingSubject implements WebSubject

5.public interface SubjectContext extends Map<String, Object>

SubjectContext 將構(gòu)建Subject的所有屬性都組織到一起，然后傳遞給一個(gè)SubjectFactory,用于構(gòu)成一個(gè)Subject.

6.public interface SubjectFactory

Subject createSubject(SubjectContext context);

創(chuàng)建Subject

7.public class DefaultSubjectFactory implements SubjectFactory

8.public class DefaultWebSubjectFactory extends DefaultSubjectFactory 

五：SecurityManager

1.public interface SecurityManager extends Authenticator, Authorizer, SessionManager

Subject login(Subject subject, AuthenticationToken authenticationToken) throws AuthenticationException;

登錄

void logout(Subject subject);

登出

Subject createSubject(SubjectContext context);

2.public abstract class CachingSecurityManager implements SecurityManager, Destroyable, CacheManagerAware, EventBusAware

   private CacheManager cacheManager;

   private EventBus eventBus;

3.public abstract class RealmSecurityManager extends CachingSecurityManager

 private Collection<Realm> realms;

權(quán)限集合realms

4.public abstract class AuthenticatingSecurityManager extends RealmSecurityManager

private Authenticator authenticator;

SecurityManager用于身份驗(yàn)證操作的具體實(shí)例

5.public abstract class AuthorizingSecurityManager extends AuthenticatingSecurityManager

 private Authorizer authorizer;

SecurityManager用于授權(quán)操作的具體實(shí)例

6.public abstract class SessionsSecurityManager extends AuthorizingSecurityManager

 private SessionManager sessionManager;

SecurityManager用于管理所有Session的具體實(shí)例。

7.public class DefaultSecurityManager extends SessionsSecurityManager

    protected RememberMeManager rememberMeManager;

   記著引用中與當(dāng)前Subject關(guān)聯(lián)的Seeion,免重新登錄

    protected SubjectDAO subjectDAO;

   Subject的持久化存儲(chǔ)

    protected SubjectFactory subjectFactory;

   創(chuàng)建應(yīng)用Subject的工廠

8.public class DefaultWebSecurityManager extends DefaultSecurityManager implements WebSecurityManager

boolean isHttpSessionMode();

是否使用Servlet 容器的HttpSession

感謝各位的閱讀，以上就是“Shiro核心類有哪些”的內(nèi)容了，經(jīng)過(guò)本文的學(xué)習(xí)后，相信大家對(duì)Shiro核心類有哪些這一問(wèn)題有了更深刻的體會(huì)，具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云，小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章，歡迎關(guān)注！