Question

我需要在UserDetailsDaoImpl中读取属性值。我正在使用Spring Security。

它成功地读取@Controller内部，但不在此类中，因为它是@Repository。

我该怎么做才能读取属性值？

UserDetailsDaoImpl：

@Repository
public class UserDetailsDaoImpl extends JdbcDaoSupport implements UserDetailsDao {

    @Value("${emails_blocked}")
    private String emails_blocked;

豆类：

<context:property-placeholder location="classpath:config.properties"/>

编辑：

这就是我如何调用UserDetailsDaoImpl：

@Autowired
UserDetailsDao userDetailsDao;

@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {

    try {

        Authentication auth = super.authenticate(authentication);

        // if reach here, means login success, else exception will be thrown
        // reset the user_attempts
        userDetailsDao.resetFailAttempts(authentication.getName());

        return auth;

    } catch (BadCredentialsException e) {

        userDetailsDao.updateFailAttempts(authentication.getName());
        throw e;

    }

我的豆子更新了：

<beans:bean id="userDetailsDao" class="com.setelog.spring.dao.UserDetailsDaoImpl" >
    <beans:property name="dataSource" ref="dataSource" />
</beans:bean>

<beans:bean id="encoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"/>


<beans:bean id="authenticationProvider"
    class="com.setelog.spring.handler.LimitLoginAuthenticationProvider">
    <beans:property name="userDetailsService" ref="customUserDetailsService" />
    <beans:property name="userDetailsDao" ref="userDetailsDao" />
    <beans:property name="passwordEncoder" ref="encoder" />

</beans:bean>

Answer 1

我的问题是，因为我调用了一个方法，它不会加载@Value所以我不得不注入一些bean。像这样：

<bean
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:config.properties</value>            
            </list>
        </property>
    </bean>

    <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
        <property name="staticMethod" value="com.setelog.spring.dao.UserDetailsDaoImpl.setEmails_Blocked"/>
        <property name="arguments">
            <list>
                <value>${emails_blocked}</value>
            </list>
       </property>
    </bean>

我的UserDetailsDaoImpl：

static String emails_blocked;

public static void setEmails_Blocked(String emails_blocked){
    UserDetailsDaoImpl.emails_blocked= emails_blocked;
}

这个答案给了我很多帮助： https://stackoverflow.com/a/24649692/4790786

Spring MVC在DAOImpl中读取属性文件null

1 个答案: