我的UserService出现问题。它无法识别其中定义的自动连接依赖项。我尝试直接在变量和构造函数上使用Autowired注释。 knowledgbaseDao在loadUserByUsername中无效。在启动时，此类的构造函数被调用3次。每个创建不同的对象。第一个是使用默认的空构造函数创建的。其他两个是使用自动装配的构造函数创建的，并为knowledgebaseDao指定正确的类。当从登录页面调用userservice时，它使用第一个UserService类并抛出空指针异常。这是我的代码：
@Component("userService")
public class UserService implements UserDetailsService {
private static final Logger logger = LoggerFactory.getLogger(UserService.class);
private KnowledgeBaseDao knowledgeBaseDao;
public UserService(){
System.out.println();
}
@Autowired
public UserService(KnowledgeBaseDao knowledgeBaseDao) {
this.knowledgeBaseDao = knowledgeBaseDao;
}
public UserDetails loadUserByUsername(String login) throws AuthenticationException {
logger.info("UserDetails Database Service : " + login);
// check user exists in database
User user = knowledgeBaseDao.findUserByEmail(login);
if (user == null) {
logger.warn("User({}) does not exist in system", login);
throw new UsernameNotFoundException("There is no user with this username.");
}
boolean containsLoginRole = checkLoginRole(user);
if (!containsLoginRole) {
throw new UsernameNotFoundException("Access denied.");
}
if ((user.getStatus() == null || user.getStatus() == 0)) {
throw new UsernameNotFoundException("User is not confirmed");
}
//boolean enabled = user.getStatus() == AccountStatus.ACTIVE;
boolean accountNonExpired = true;
boolean credentialsNonExpired = true;
boolean accountNonLocked = true;
if (user.getLoginTryCount() != null && user.getLoginTryCount() >= 3) {
accountNonLocked = false;
}
return new org.springframework.security.core.userdetails.User(user.getEmail(), user.getPassword(), true, accountNonExpired,
credentialsNonExpired, accountNonLocked, this.getAuthorities(user.getRoleId()));
}
public Collection<? extends GrantedAuthority> getAuthorities(Collection<Role> roleList) {
List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
for (Role role : roleList) {
authorities.add(new SimpleGrantedAuthority(role.getName()));
}
return authorities;
}
public Collection<? extends GrantedAuthority> getAuthorities(Long roleId) {
List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
authorities.add(new SimpleGrantedAuthority(Constants.ROLE_NAME(roleId.intValue())));
return authorities;
}
private boolean checkLoginRole(User user) {
if (user.getRoleId() == 0) {
return false;
}
if (user.getRoleId() == Constants.ROLE_ADMIN
|| user.getRoleId() == Constants.ROLE_MODERATOR
|| user.getRoleId() == Constants.ROLE_USER) {
return true;
} else {
return false;
}
}
}
更新：
这是security.xml文件：
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- Disabled Security for Static Resources -->
<global-method-security pre-post-annotations="enabled" secured-annotations="enabled"/>
<http pattern="/static/**" security="none"/>
<beans:bean id="shaPasswordEncoder" class="org.springframework.security.authentication.encoding.ShaPasswordEncoder">
<beans:constructor-arg value="256"/>
</beans:bean>
<beans:bean id="userService" class="com.gsu.knowledgebase.service.UserService"/>
<!-- Ajax Aware Handler -->
<beans:bean id="authEntryPoint"
class="com.gsu.knowledgebase.spring.AjaxAwareLoginUrlAuthenticationEntryPoint"
scope="singleton">
<beans:constructor-arg name="loginFormUrl" value="/knowledge-base"/>
</beans:bean>
<http authentication-manager-ref="authenticationManager" entry-point-ref="authEntryPoint"
pattern="/knowledge-base/**"
use-expressions="true" disable-url-rewriting="true">
<custom-filter position="BASIC_AUTH_FILTER" ref="loginFilter"/>
<logout logout-success-url="/knowledge-base" invalidate-session="true" delete-cookies="JSESSIONID"
logout-url="/knowledgeBase/j_spring_security_logout"/>
<intercept-url pattern="/knowledge-base/" access="permitAll"/>
<intercept-url pattern="/knowledge-base/memory"
access="hasRole('ADMIN') || hasRole('MODERATOR') || hasRole('USER')"/>
<access-denied-handler error-page="/knowledge-base/error/403"/>
<session-management session-authentication-error-url="/knowledge-base/error/sessionExpired"/>
</http>
<!-- ************************** -->
<authentication-manager id="authenticationManager">
<authentication-provider user-service-ref="userService">
<password-encoder ref="shaPasswordEncoder"/>
</authentication-provider>
</authentication-manager>
<beans:bean id="loginFilter"
class="org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter">
<beans:property name="authenticationManager" ref="authenticationManager"/>
<beans:property name="filterProcessesUrl" value="/knowledgeBase/j_spring_security_check"/>
<beans:property name="authenticationSuccessHandler">
<beans:bean class="com.gsu.knowledgebase.spring.AuthenticationSuccessHandler"/>
</beans:property>
<beans:property name="authenticationFailureHandler">
<beans:bean class="com.gsu.knowledgebase.spring.AuthenticationFailureHandler"/>
</beans:property>
</beans:bean>
<!-- ************************** -->
</beans:beans>
我在gitHub中有一个这样的项目：link
你应该用你的Dao使用@Autowired：
@Autowired
private KnowledgeBaseDao knowledgeBaseDao;
别忘了扫描dao包
所以我通过在sequrity xml中显式定义所需的bean并从userservice类中删除任何自动连接的注释来解决它：
<beans:bean id="maxIdCalculator" class="com.gsu.common.util.MaxIdCalculator">
</beans:bean>
<beans:bean id="knowledgeBaseDao" class="com.gsu.knowledgebase.repository.KnowledgeBaseDao">
<beans:constructor-arg ref="kbDataSource"/>
<beans:constructor-arg ref="maxIdCalculator"/>
</beans:bean>
<beans:bean id="userService" class="com.gsu.knowledgebase.service.UserService">
<beans:constructor-arg ref="knowledgeBaseDao"/>
</beans:bean>