使用AOP+Annotation實現操作日志記錄，aopannotation

使用AOP+Annotation實現操作日志記錄，aopannotation

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 }

然後創建AOP的切面類 LogAspect

public class LogAspect {
	
	@Resource
	private 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SPEL
	private 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>

　　最後在需要攔截的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){
    
}