?

先創建注解 OperInfo

1 @Target({ElementType.TYPE, ElementType.METHOD}) 2 @Retention(RetentionPolicy.RUNTIME) 3 @Documented 4 @Inherited 5 public @interface OperInfo { 6 7 public String description() default "";//操作說明 8 9 }

然后創建AOP的切面類 LogAspect

public class LogAspect {@Resourceprivate OperationLogService operService;public Object doAroundMethodForCtLog(ProceedingJoinPoint pjp)throws Throwable{Method method = getMethod(pjp);if(method != null && method.isAnnotationPresent(OperInfo.class)){OperInfo annotation = method.getAnnotation(OperInfo.class);String descpTemp = annotation.description();String description = executeTemplate(descpTemp, pjp);HttpServletRequest request = HttpServletUtils.getRequest();Users user = (Users) request.getSession().getAttribute("users");OperationLog operation = new OperationLog();operation.setChangetime(new Date());operation.setChangeuserid(user.getUsersid());operation.setOptid(UUIDUtils.getUUID());operation.setDescription("用戶："+ user.getUsername() +",日志信息：【{"+description+"}】");operService.insertService(operation);}return pjp.proceed();}//解析SPELprivate String executeTemplate(String template, ProceedingJoinPoint joinPoint){
　　　　　　　　　 LocalVariableTableParameterNameDiscoverer parameterNameDiscovere = new LocalVariableTableParameterNameDiscoverer();Method method = getMethod(joinPoint);String[] parameterNames = parameterNameDiscovere.getParameterNames(method);EvaluationContext context = new StandardEvaluationContext();ExpressionParser parser = new SpelExpressionParser();Object[] args = joinPoint.getArgs();if(args.length == parameterNames.length){for (int i = 0,len = args.length; i < len; i++) {context.setVariable(parameterNames[i], args[i]);}}return parser.parseExpression(template, new TemplateParserContext()).getValue(context, String.class);}private Method getMethod(ProceedingJoinPoint joinPoint){Object target = joinPoint.getTarget();Method method = ((MethodSignature)joinPoint.getSignature()).getMethod();try {method = target.getClass().getMethod(method.getName(), method.getParameterTypes());} catch (Exception e) {e.printStackTrace();}return method;}}

　　spring-mvc.xml配置

<bean class="com.aop.LogAspect" id="logAspect" /> <aop:config expose-proxy="true"><aop:pointcut expression="execution(* com.service.impl.*Impl.*(..))" id="txPointcut"/><aop:aspect ref="logAspect" ><aop:around method="doAroundMethodForCtLog" pointcut-ref="txPointcut" /> </aop:aspect> </aop:config>

　　最后在需要攔截的service上加上注解就行了

@OperInfo(description="新增了名為#{#user.username}的用戶") public int insertUser(Users user){}

　　

轉載于:https://www.cnblogs.com/tianrongyao/p/annotation.html

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