Spring AOP解决系统日志备忘

配置文件：

    <!-- 操作日志切面声明  -->   
    <bean id="logAspect" class="com.tq365.service.sys.log.SystemLogAspect"/>
    <aop:config>
        <aop:aspect ref="logAspect">
        </aop:aspect>
    </aop:config>
    

Java代码：

/**
 * 系统操作日志切面
 * 
 * @author archie2010
 *  since 2011-3-17 下午02:44:03
 */
@Aspect
public class SystemLogAspect {

    // int与long之Class会自动转为其封装类型之Class
    private static final String integerClazz = "class java.lang.Integer";
    private static final String longClazz = "class java.lang.Long";

    @Resource
    private SystemLogService systemLogService;

    private Logger logger = Logger.getLogger(this.getClass().getName());

    @Pointcut("execution(* com.tq365.service..*.*(..))")
    public void myAspect() {
    };

    @AfterThrowing(pointcut = "myAspect()", throwing = "e")
    public void doAfterThrowing(JoinPoint jp, Throwable e) {
        System.out.println("出现异常:" + e.getMessage());
        System.out.println(e.getClass().getName());
        System.out.println("异常所在类:" + jp.getTarget().getClass().getName());
        System.out.println("" + jp.getSignature().getName()
                + "方法 throw exception");
        // logger.error("错误！ error级别的！！！"+e.getMessage());
        logger.error("Oops===" + jp.getTarget().getClass().getName() + "中的"
                + jp.getSignature().getName() + "方法抛出" + e.getClass().getName()
                + "异常");
        System.out.println("参数:");
        ;
        if (jp.getArgs() != null && jp.getArgs().length > 0) {
            for (int i = 0; i < jp.getArgs().length; i++) {
                System.out.println(jp.getArgs()[i].toString());
                logger.error("参数：--" + jp.getArgs()[i].toString());
            }
        }
    }

    @SuppressWarnings("unchecked")
    @After("@annotation(com.tq365.sys.annotation.SystemLogAnnotation)")
    public void doAfter(JoinPoint jp) {
        System.out.println("----------后置通知");
        System.out.println("方法所在类:" + jp.getTarget().getClass().getName());
        System.out.println("" + jp.getSignature().getName() + "方法");

        String methodName = jp.getSignature().getName();

        // 操作日志对象-----------------
        SystemLog sysLog = new SystemLog();

        // 操作参数-----------------
        String descArgs = "参数";
        if (jp.getArgs() != null && jp.getArgs().length > 0) {
            for (int i = 0; i < jp.getArgs().length; i++) {
                if(jp.getArgs()[i]!=null){
                    //System.out.println(jp.getArgs()[i].toString());
                    descArgs += jp.getArgs()[i].toString()+",";
                }else{
                    descArgs +="null"+",";
                }
            }
            System.out.println("------参数" + descArgs);
        }
        sysLog.setOperateArgs(descArgs);

        String des = null;//方法描述
        if (!(methodName.startsWith("set") || methodName.startsWith("get"))) {

            Class targetClass = jp.getTarget().getClass();

            //方法不定向参数Clazz...
            Class[] claszs = new Class[jp.getArgs().length];

            for (int i = 0; i < jp.getArgs().length; i++) {
                //System.out.println(jp.getArgs()[i]);
                if(jp.getArgs()[i]!=null){
                    System.out.println(jp.getArgs()[i].getClass());
                    if (jp.getArgs()[i].getClass().toString().equals(integerClazz)) {
                        claszs[i] = int.class;
                    } else if (jp.getArgs()[i].getClass().toString().equals(
                            longClazz)) {
                        claszs[i] = long.class;
                    }else{
                        claszs[i] =jp.getArgs()[i].getClass();
                    }
                }else if(jp.getArgs()[i]==null){
                    claszs[i] = String.class;
                }
            }
            Method method=null;
            try {
                method = targetClass.getMethod(methodName, claszs);
            } catch (SecurityException e) {
            } catch (NoSuchMethodException e) {
            }
            //若方法为空(描述无法获得则des=null)
            if(method!=null){
                System.out.println(method.getAnnotation(SystemLogAnnotation.class)
                        .description());
                des = method.getAnnotation(SystemLogAnnotation.class).description();
            }

        }
        // 获得Session
        HttpSession session = ServletActionContext.getRequest().getSession();
        // 取到当前的操作用户
        User appUser = (User) session.getAttribute("USER");

        if (appUser != null) {
            System.out.println("用户已经存在Session中");
            // 操作日志对象

            sysLog.setUid(appUser.getUserId());
            sysLog.setUsername(appUser.getFullName());

        }
        HttpServletRequest request = ServletActionContext.getRequest();
        String ip = request.getRemoteAddr();
        sysLog.setOperateTime(DateUtil.getCurrentTime());
        sysLog.setOperateDes(methodName +"->"+ des);
        sysLog.setIp(ip);

        systemLogService.save(sysLog);
        System.out.println("----------保存操作日志");
    }

}