apache shiro整合struts2+spring+mybatis简单demo
先上一段shiro中获取数据源的代码，Demo见附件

public class AuthenticationRealm extends AuthorizingRealm {

    private static final Logger log = LoggerFactory.getLogger(AuthenticationRealm.class);
   
    @Autowired
private UserMapper userMapper;
   
    @Autowired
    private RoleMapper roleMapper;
   
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        UsernamePasswordToken upToken = (UsernamePasswordToken) token;
        String username = upToken.getUsername();
//        char[] password = upToken.getPassword();
//        log.debug(String.valueOf(password));
        // Null username is invalid
        if (username == null) {
            throw new AccountException("用户名不能为空!");
        }
        SimpleAuthenticationInfo info = null;
       try{
       String password =  userMapper.getPassword(username);
       if (password == null) {
           throw new UnknownAccountException("No account found for user [" + username + "]");
       }
//       if(password.length>2){
//       throw new AuthenticationException("More than one user row found for user [" + username + "]. Usernames must be unique.");
//       }
       info = new SimpleAuthenticationInfo(username, password.toCharArray(), getName());
       }  catch (RuntimeException e) {
           final String message = "There was a SQL error while authenticating user [" + username + "]";
           throw new AuthenticationException(message, e);
       }
       
           return info;
    }



@Override
protected AuthorizationInfo doGetAuthorizationInfo(
PrincipalCollection principals) {
  if (principals == null) {
            throw new AuthorizationException("PrincipalCollection method argument cannot be null.");
        }

        String username = (String) getAvailablePrincipal(principals);
        Set<String> roleNames = getRoleNameByUserName(username);
        Set<String> permissions = new HashSet<String>();
        for(String roleName : roleNames){
        Role role = roleMapper.getRole(roleName);
        for(Permission permission :role.getPermissions()){
        permissions.add(permission.getModule()+":"+permission.getPrivilege());
        }