spring中AOP实现方式

1.通知

import java.lang.reflect.Method;
import java.util.Map;

import javax.annotation.Resource;

import org.springframework.aop.AfterReturningAdvice;

import person.wjt.base.auth.model.User;
import person.wjt.base.auth.model.UserType;
import person.wjt.base.auth.runtime.AuthService;

import com.trunkbow.audit.base.dao.ManagerDao;
import com.trunkbow.audit.base.model.Manager;

public class ManagerLogin implements AfterReturningAdvice{
	@Resource
	private ManagerDao managerDao;

	@SuppressWarnings("unchecked")
	@Override
	public void afterReturning(Object returnValue, Method method,
			Object[] args, Object target) throws Throwable {
		if (null==returnValue) {
			return;
		}
		Map<String, Object> returnMap=(Map<String, Object>)returnValue;
		User user=(User) returnMap.get(AuthService.CURRENT_USER);
		if (UserType.MANAGER.equals(user.getType())) {
			Manager manager=managerDao.getById(user.getId());
			returnMap.put(AuthService.CURRENT_USER, manager);
		}
		
	}

}

2.service接口

/**
 * 权限执行时Service
 * @author wangjintao
 *
 */
public interface AuthService {
	/**
	 * 当前用户，当前登陆的用户
	 */
	public final static String CURRENT_USER="_current_user_";
	/**
	 * 当前用户所属的组
	 */
	public final static String CURRENT_GROUPS="_current_groups_";
	/**
	 * 当前用户可用的组
	 */
	public final static String CURRENT_AVAILABLE_GROUPS="_current_available_groups_";
	/**
	 * 当前用户所属组的id
	 */
	public final static String CURRENT_GROUP_IDS="_current_group_ids_";
	/**
	 * 当前用户所属组的code
	 */
	public final static String CURRENT_GROUP_CODES="_current_group_codes_";
	/**
	 * 当前用户拥有的功能
	 */
	public final static String CURRENT_PERMS="_current_perms_";
	/**
	 * 当前用户可用的权限
	 */
	public final static String CURRENT_AVAILABLE_PERMS="_current_available_perms_";
	/**
	 * 当前用户拥有的功能id
	 */
	public final static String CURRENT_PERM_IDS="_current_perm_ids_";
	/**
	 * 当前用户拥有的功能code
	 */
	public final static String CURRENT_PERM_CODES="_current_perm_codes_";
	
	
	/**
	 * 登陆方法
	 * @param username	用户名
	 * @param password		密码
	 * @return 	需要记在session中的键值对,ru
	 */
	public Map<String,Object> login(String username,String password);
	/**
	 * 登出
	 */
	public void logout();
	

3.service实现

import org.apache.log4j.Logger;

import java.util.HashMap;
import java.util.Map;

import javax.annotation.Resource;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.ExcessiveAttemptsException;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.LockedAccountException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;

import person.wjt.base.auth.dao.UserDao;
import person.wjt.base.auth.model.User;
import person.wjt.base.auth.runtime.AuthService;

/**
 * 基于shiro的AuthService实现
 * @author wangjintao
 *
 */
public class ShiroAuthService implements AuthService{
	/**
	 * Logger for this class
	 */
	private static final Logger logger = Logger
			.getLogger(ShiroAuthService.class);

	@Resource
	private UserDao userDao;
	

	@Override
	public Map<String, Object> login(String username, String password) {
		if (logger.isDebugEnabled()) {
			logger.debug("login(String, String) - start");
		}

		Subject subject= SecurityUtils.getSubject();  
		UsernamePasswordToken token = new UsernamePasswordToken(username, password);
		try{
			subject.login(token);
		}catch ( UnknownAccountException uae ) {
			logger.warn("login(String, String)", uae);
		} catch ( IncorrectCredentialsException ice ) {
			logger.warn("login(String, String)", ice);
		} catch ( LockedAccountException lae ) {
			logger.warn("login(String, String)", lae);
		} catch ( ExcessiveAttemptsException eae ) {
			logger.warn("login(String, String)", eae);
		} catch ( AuthenticationException ae ) {
			logger.warn("login(String, String)", ae);
		}
		if (subject.isAuthenticated()) {
			Map<String, Object> loginResult=new HashMap<String, Object>();
			loginResult.put(CURRENT_USER,subject.getPrincipals().oneByType(User.class));
			return loginResult;
		}

		if (logger.isDebugEnabled()) {
			logger.debug("login(String, String) - end");
		}
		return null;
	}


	@Override
	public void logout() {
		Subject subject= SecurityUtils.getSubject();  
		if (null!=subject&&subject.isAuthenticated()) {
			subject.logout();
		}
	}

}

2.配置

<bean id="authServiceImpl" class="person.wjt.base.auth.runtime.shiro.ShiroAuthService" />
	
<bean id="managerLoginAdvisor"
class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
		<property name="advice" ref="managerLogin" />
		<property name="mappedNames">
			<array value-type="java.lang.String">
				<value>login</value>
			</array>
		</property>
	</bean>

	<bean id="authService" class="org.springframework.aop.framework.ProxyFactoryBean">
		<property name="proxyInterfaces" value="person.wjt.base.auth.runtime.AuthService" />
		<property name="target" ref="authServiceImpl" />
		<property name="interceptorNames">
			<list>
				<value>managerLoginAdvisor</value>
			</list>
		</property>
	</bean>