Spring AOP 权限

package com.jun; import org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation; import org.apache.log4j.Logger; //创建Around处理应该实现MethodInterceptor接口 /** * @author jun 拦截器Around处理类型的类 * @TIME Sep 20, 2008 * */ public class TestAuthorityInterceptor implements MethodInterceptor { private User user; //日志 private Logger logger = Logger.getLogger(this.getClass().getName()); public User getUser() { return user; } public void setUser(User user) { this.user = user; } public Object invoke(MethodInvocation invock) throws Throwable { String methodName = invock.getMethod().getName(); System.out.println(methodName); if ("unRegistedUser".equals(user.getUsername())) { System.out.println("未注册用户，无权利发帖子，请您先注册！"); return null; } if (("user".equals(user.getUsername())) && !("deleteInfo".equals(methodName))) { System.out.println("注册用户，无权利删除帖子！"); return null; } if (("admin".equals(user.getUsername())) && ("deleteInfo".equals(methodName))) { System.out.println("系统管理员，可以任意操作！"); return null; } // 方法执行，proceed()方法对连接点的整个拦截器链起作用,拦截器链中的每个拦截器都执行该方法,并返回它的返回值 Object result = null; try{ logger.info("权限过滤正常！"); result = invock.proceed(); }catch(Exception e){ e.printStackTrace(); logger.error("权限过滤出现异常！"); } return result; } }