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    copied!<p>You have to make your own custom authentication-provider.</p> <p><strong>Example code:</strong></p> <p><em>Service to load Users from Hibernate:</em></p> <pre><code>import org.springframework.security.core.userdetails.UserDetails; import org.springframework.security.core.userdetails.UserDetailsService; import org.springframework.security.core.userdetails.UsernameNotFoundException; @Service("userDetailsService") public class UserDetailsServiceImpl implements UserDetailsService { @Autowired private UserDao dao; @Autowired private Assembler assembler; @Transactional(readOnly = true) public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException, DataAccessException { UserDetails userDetails = null; UserEntity userEntity = dao.findByName(username); if (userEntity == null) throw new UsernameNotFoundException("user not found"); return assembler.buildUserFromUserEntity(userEntity); } } </code></pre> <p><em>Service to convert your entity to a spring user object:</em></p> <pre><code>import org.springframework.security.core.GrantedAuthority; import org.springframework.security.core.authority.GrantedAuthorityImpl; import org.springframework.security.core.userdetails.User; @Service("assembler") public class Assembler { @Transactional(readOnly = true) User buildUserFromUserEntity(UserEntity userEntity) { String username = userEntity.getName(); String password = userEntity.getPassword(); boolean enabled = userEntity.isActive(); boolean accountNonExpired = userEntity.isActive(); boolean credentialsNonExpired = userEntity.isActive(); boolean accountNonLocked = userEntity.isActive(); Collection&lt;GrantedAuthority&gt; authorities = new ArrayList&lt;GrantedAuthority&gt;(); for (SecurityRoleEntity role : userEntity.getRoles()) { authorities.add(new GrantedAuthorityImpl(role.getRoleName())); } User user = new User(username, password, enabled, accountNonExpired, credentialsNonExpired, accountNonLocked, authorities, id); return user; } } </code></pre> <p><em>The namespace-based application-context-security.xml would look something like:</em></p> <pre><code>&lt;http&gt; &lt;intercept-url pattern="/login.do*" filters="none"/&gt; &lt;intercept-url pattern="/**" access="IS_AUTHENTICATED_ANONYMOUSLY" /&gt; &lt;form-login login-page="/login.do" authentication-failure-url="/login.do?error=failed" login-processing-url="/login-please.do" /&gt; &lt;logout logout-url="/logoff-please.do" logout-success-url="/logoff.html" /&gt; &lt;/http&gt; &lt;beans:bean id="daoAuthenticationProvider" class="org.springframework.security.authentication.dao.DaoAuthenticationProvider"&gt; &lt;beans:property name="userDetailsService" ref="userDetailsService"/&gt; &lt;/beans:bean&gt; &lt;beans:bean id="authenticationManager" class="org.springframework.security.authentication.ProviderManager"&gt; &lt;beans:property name="providers"&gt; &lt;beans:list&gt; &lt;beans:ref local="daoAuthenticationProvider" /&gt; &lt;/beans:list&gt; &lt;/beans:property&gt; &lt;/beans:bean&gt; &lt;authentication-manager&gt; &lt;authentication-provider user-service-ref="userDetailsService"&gt; &lt;password-encoder hash="md5"/&gt; &lt;/authentication-provider&gt; &lt;/authentication-manager&gt; </code></pre>
 

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