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@Component @Aspect public class PermissionAspect { @Resource private UserService userservice; @Resource private RoleService roleservice; @Resource private User_RoleService user_roleservice; ThreadUtils Tutils = ThreadUtils.getInstance(); public User getUser() { User user = Tutils.getUserId(); return user; }

@Pointcut("execution(* com.funo.oa.web.*.*(..))")

private void anyMethod() {

} // 声明一个切入点，anyMethod为切入点名称 /** * 前置通知：目标方法执行之前执行以下方法体的内容 *  * @param jp */ // @Before("execution(* com.funo.oa.serviceImpl.*.*(..))") @Before("anyMethod()") public void beforeMethod(JoinPoint jp) { /* * User user = (User) request.getAttribute("currentUser"); Set<User_Role> * userroles = user.getUserroles(); Iterator<User_Role> iterator = * userroles.iterator(); while(iterator.hasNext()) { User_Role user_Role = * iterator.next(); Role role = user_Role.getRole(); Set<Role_Operation> * roleoperas = role.getRoleoperas(); Iterator<Role_Operation> iterator2 = * roleoperas.iterator(); while(iterator2.hasNext()) { Role_Operation * role_Operation = iterator2.next(); Operation operation = * role_Operation.getOperation(); * operationList.add(operation.getPermissionSign()); } } */ // String methodName = jp.getSignature().getName(); // MethodSignature signature = (MethodSignature) jp.getSignature(); // PermissionController annotation = // signature.getMethod().getAnnotation(PermissionController.class); // System.out.println("【前置通知】the method 【" + methodName + "】 begins with " + // Arrays.asList(jp.getArgs())); // if(annotation!=null) { // LogUtil.error(annotation.permissionName()[0]); // } /* * if(annotation!=null) { String[] permissionName = annotation.permissionName(); * for (int i = 0; i < permissionName.length; i++) { for (int j = 0; j < * operationList.size(); j++) { * if(permissionName[i].equals(operationList.get(j))) { signature.getMethod(). } * } } *  * System.out.println(annotation.permissionName()); } */ } /** * 返回通知：目标方法正常执行完毕时执行以下代码 *  * @param jp * @param result */ @AfterReturning(value = "anyMethod()", returning = "result") public void afterReturningMethod(JoinPoint jp, Object result) { String methodName = jp.getSignature().getName(); System.out.println("【返回通知】the method 【" + methodName + "】 ends with 【" + result + "】"); } /** * 后置通知：目标方法执行之后执行以下方法体的内容，不管是否发生异常。 *  * @param jp */ @After("anyMethod()") public void afterMethod(JoinPoint jp) { System.out.println("【后置通知】this is a afterMethod advice..."); } /** * 异常通知：目标方法发生异常的时候执行以下代码 */ @AfterThrowing(value = "anyMethod()", throwing = "e") public void afterThorwingMethod(JoinPoint jp, NullPointerException e) { String methodName = jp.getSignature().getName(); System.out.println("【异常通知】the method 【" + methodName + "】 occurs exception: " + e); } /** * 环绕通知：目标方法执行前后分别执行一些代码，发生异常的时候执行另外一些代码 *  * @return */ @Around("anyMethod()") public Object aroundMethod(ProceedingJoinPoint jp) { ArrayList<String> operationList = new ArrayList<>(); String methodName = jp.getSignature().getName(); Object result = null; boolean isExist = false; try { System.out.println( "【环绕通知中的--->前置通知】：the method 【" + methodName + "】 begins with " + Arrays.asList(jp.getArgs())); System.out.println(getUser()); // 执行目标方法 /*******************************************************/ User user = getUser(); if (user != null) { Set<User_Role> userroles = user.getUserroles(); Iterator<User_Role> iterator = userroles.iterator(); while (iterator.hasNext()) { User_Role user_Role = iterator.next(); Role role = user_Role.getRole(); Set<Role_Operation> roleoperas = role.getRoleoperas(); Iterator<Role_Operation> iterator2 = roleoperas.iterator(); while (iterator2.hasNext()) { Role_Operation role_Operation = iterator2.next(); Operation operation = role_Operation.getOperation(); operationList.add(operation.getPermissionSign()); } } } // String methodName2 = jp.getSignature().getName(); MethodSignature signature = (MethodSignature) jp.getSignature();

PermissionController annotation = signature.getMethod().getAnnotation(PermissionController.class);

System.out.println("【前置通知】the method 【" + methodName + "】 begins with " + Arrays.asList(jp.getArgs()));

HttpServletRequest request = null;

HttpServletResponse response = null;

Object[] args = jp.getArgs();

for (int i = 0; i < args.length; i++) {

if (args[i] instanceof HttpServletRequest) {

request = (HttpServletRequest) args[i];

}

if (args[i] instanceof HttpServletResponse) {

response = (HttpServletResponse) args[i];

}

}

if (annotation != null) {

LogUtil.error(annotation.permissionName()[0]);

System.out.println(operationList.isEmpty());

}

if (annotation != null) {

String[] permissionName = annotation.permissionName();

for (int i = 0; i < permissionName.length; i++) {

for (int j = 0; j < operationList.size(); j++) {

if (permissionName[i].equals(operationList.get(j))) {

// result = jp.proceed();

isExist=true;

}

}

}

if(isExist) {

result = jp.proceed();

}else {

response.sendRedirect(request.getContextPath()+"/index.jsp");

result=null;

}

} else {

result = jp.proceed();

} /*****************************************************************/ System.out.println("【环绕通知中的--->返回通知】：the method 【" + methodName + "】 ends with " + result); } catch (Throwable e) { System.out.println("【环绕通知中的--->异常通知】：the method 【" + methodName + "】 occurs exception " + e); } System.out.println("【环绕通知中的--->后置通知】：-----------------end.----------------------"); return result; }

}

补充：在切面类中传递参数：

       （1）利用ProceedingJoinPoint  jp.getArgs()方法即可获得，此参数列表为方法参数中的形参，譬如需要在切面类中使用到HttpServletRequest和HttpServletResponse时，可将其放在方法的参数中，有AOP控制是就可以获取到该参数

         （2）http://blog.csdn.net/littleskey/article/details/51842917（转载），可参考此文