StackOverflow2013

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copied!<p>I think that the best way to do this is to implement UserDetailsService and UserDetails.</p> <p>Example implementation of UserDetailsService.</p> <pre><code>@Service @Transactional public class UserLoginService implements UserDetailsService { @Autowired private UserService userService; @Override public UserDetails loadUserByUsername(String userId) throws UsernameNotFoundException { UserEntity userEntity = this.userService.getUserByUserId(userId); if (userEntity == null) { throw new UsernameNotFoundException("User not found"); } UserLoginBean bean = new UserLoginBean(userEntity.getId(), userEntity.getUserId(), userEntity.getPassword(), userEntity.getEnabled()); bean.setFullname(userEntity.getFullname()); bean.setUserEntity(userEntity); Set<GrantedAuthority> roles = new HashSet<GrantedAuthority>(); roles.add( new SimpleGrantedAuthority( userEntity.getRole() ) ); bean.setAuthorities(roles); return bean; } } </code></pre> <p>Example implementation of UserDetails.</p> <pre><code>public class UserLoginBean implements UserDetails { private static final long serialVersionUID = 1L; private Long id; private String fullname; private String username; private String password; private boolean locked; private Set<GrantedAuthority> authorities = null; private UserEntity userEntity; public UserLoginBean(Long id, String username, String password, boolean locked ) { this.id = id; this.username = username; this.password = password; this.locked = locked; } public boolean isAccountNonExpired() { return true; } public boolean isAccountNonLocked() { return locked; } public boolean isCredentialsNonExpired() { return true; } public boolean isEnabled() { return true; } public Set<GrantedAuthority> getAuthorities() { return authorities; } public void setAuthorities( Set<GrantedAuthority> authorities ) { if ( this.authorities == null ) { this.authorities = authorities; } } // setters, getters } </code></pre> <p>The last thing is to configure spring security to UserLoginService as authentication provider.</p> <p>Example:</p> <pre><code><security:authentication-manager alias="authenticationManager"> <security:authentication-provider user-service-ref="userLoginService"> <security:password-encoder ref="userPasswordEncoder"/> </security:authentication-provider> </security:authentication-manager> <bean <bean id="userLoginService" class="com.stackoverflow.UserLoginService" /> </code></pre> <p>In the jsp page you need to add:</p> <pre><code><%@ taglib prefix="a" uri="http://www.springframework.org/security/tags"%> <a:authentication property="principal" var="principal" /> </code></pre> <p>Now you can access all the things in UserLoginBean.</p> <pre><code><c:if test="${not empty principal && principal != 'anonymousUser'}"> <c:set var="fullname"><c:out value="${principal.fullname}" /></c:set> </c:if> </code></pre>

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