Apache Shiro with Spring MVC AuthorizingRealm @Autowired java.lang.NullPointerException

Question

我正在使用Spring MVC基於應用程序的使用Spring版本4。我正在嘗試使用Apache Shiro作爲安全框架。我已經在我的應用程序中實現了AuthorizingRealm，但是當我嘗試登錄時出現了一些java.lang.NullPointerException錯誤。我的代碼如下：

@Component

公共類CustomSecurCustomSecurityRealmityRealm擴展AuthorizingRealm {

@Autowired 
UserService userService; 

@Override 
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { 

    Set<String> roles = new HashSet<>(); 
    Collection<org.apache.shiro.authz.Permission> permissions = new HashSet<>(); 

    String username = (String) principals.getPrimaryPrincipal(); 

    User user = userService.findByEmail(username); 

    if (user == null) 
     throw new UnknownAccountException(); 

    for (Role role : user.getRole()) { 
     roles.add(role.getName()); 
     for (Iterator<Permission> iterator = role.getPermissions().iterator(); iterator.hasNext();) { 
      Permission permission = iterator.next(); 
      permissions.add(new WildcardPermission(permission.getName())); 
     } 
    } 

    SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo(); 
    authorizationInfo.setRoles(roles); 
    authorizationInfo.addObjectPermissions(permissions); 
    return authorizationInfo; 
} 

@Override 
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException { 

    UsernamePasswordToken upat = (UsernamePasswordToken) token; 
    User user = userService.findByEmail(upat.getUsername()); 
    if (user != null && user.getPasswordHash().equals(new String(upat.getPassword()))) { 
     return new SimpleAuthenticationInfo(user, user.getPasswordHash(), getName()); 
    } else { 
     throw new AuthenticationException("Invalid username/password!"); 
    } 
} 

}

@Configuration是如下：

@Bean 
public WebSecurityManager securityManager() { 
    DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager(); 
    securityManager.setRealm(new CustomSecurityRealm()); 
    return securityManager; 
} 

@Bean 
public static LifecycleBeanPostProcessor lifecycleBeanPostProcessor() { 
    return new LifecycleBeanPostProcessor(); 
} 

@Bean 
public MethodInvokingFactoryBean methodInvokingFactoryBean() { 
    MethodInvokingFactoryBean methodInvokingFactoryBean = new MethodInvokingFactoryBean(); 
    methodInvokingFactoryBean.setStaticMethod("org.apache.shiro.SecurityUtils.setSecurityManager"); 
    methodInvokingFactoryBean.setArguments(new Object[] { securityManager() }); 
    return methodInvokingFactoryBean; 
} 

@Bean 
@DependsOn(value = "lifecycleBeanPostProcessor") 
public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() { 
    return new DefaultAdvisorAutoProxyCreator(); 
} 

@Bean 
public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor() { 
    AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor = new AuthorizationAttributeSourceAdvisor(); 
    authorizationAttributeSourceAdvisor.setSecurityManager(securityManager()); 
    return authorizationAttributeSourceAdvisor; 
} 

@Bean 
public ShiroFilterFactoryBean shiroFilterBean() { 
    ShiroFilterFactoryBean shiroFilter = new ShiroFilterFactoryBean(); 
    Map<String, String> definitionsMap = new HashMap<>(); 
    definitionsMap.put("/auth/signIn", DefaultFilter.anon.name()); 
    definitionsMap.put("/auth/login", DefaultFilter.anon.name()); 
    definitionsMap.put("/home/index", "authc"); 
    shiroFilter.setFilterChainDefinitionMap(definitionsMap); 
    shiroFilter.setLoginUrl("/auth/login"); 
    shiroFilter.setSuccessUrl("/home/index"); 
    shiroFilter.setSecurityManager(securityManager()); 
    return shiroFilter; 
} 

請人幫忙我爲什麼UserService userService獲得n ULL扔NullPointerException異常

Answer 1

看看四郎彈簧引導模塊：https://github.com/apache/shiro/tree/master/support/spring-boot/spring-boot-starter/src/main/java/org/apache/shiro/spring/boot/autoconfigure