最近做项目实现操作记录添加日志，由于aop这两种实现方式各有优缺点，所以都实现了一下以后根据具体业务选择。

1实现方式一注入：

1.1首先在xml中开启aop注入，需要引入的包此处省略，可百度自己查找。

1.2添加链接点

package com.oasis.wyvern.res.service.base.logService;import java.lang.annotation.*;@Target({ElementType.PARAMETER, ElementType.METHOD})@Retention(RetentionPolicy.RUNTIME)@Documentedpublic  @interface SysSecureServiceLog {    String description() default "";}

1.3添加切入点，可以添加多个切入点同理也可添加多个链接点

package com.oasis.wyvern.res.service.base.logService;import com.oasis.wyvern.res.common.biz.enums.base.type.ActionType;import com.oasis.wyvern.res.common.biz.enums.base.type.ServiceAopType;import com.oasis.wyvern.res.common.biz.vo.record.oplog.BizOpLogVo;import com.oasis.wyvern.res.dao.biz.record.oplog.SecureOpLogDao;import com.oasis.wyvern.res.model.base.context.secure.SecurityContextHolder;import com.oasis.wyvern.res.model.biz.record.oplog.SecureOpLog;import com.oasis.wyvern.res.service.base.record.oplog.BizOpLogService;import org.aspectj.lang.JoinPoint;import org.aspectj.lang.annotation.AfterReturning;import org.aspectj.lang.annotation.AfterThrowing;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Pointcut;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Component;import javax.annotation.Resource;import java.lang.reflect.Method;import java.util.Arrays; @Aspect@Componentpublic class Aop2Log {    private static final Logger logger = LoggerFactory.getLogger(Aop2Log.class);    @Resource    private BizOpLogService bizOpLogVoService;    @Resource    private SecureOpLogDao secureOpLogDao;    /**     *     用户Service层切点     */    @Pointcut("@annotation(com.oasis.wyvern.res.service.base.logService.ServiceLog)")    public  void serviceAspect() {    }    /**     * 系统安全层面切入点     */    @Pointcut("@annotation(com.oasis.wyvern.res.service.base.logService.SysSecureServiceLog)")    public  void sysSecureServiceAspect() {    }    /**     * 用户service     * @param point     */    @AfterReturning("serviceAspect()")    public void doAfter2Service(JoinPoint point){        try {            String actor ="";            if(SecurityContextHolder.getContext().getUser()!=null){                actor = SecurityContextHolder.getContext().getUser().getLoginName();            }            String method = point.getSignature().getName();            String entity = point.getTarget().getClass().getSimpleName();            String args =  getAvailableArgs(point.getArgs());            BizOpLogVo bizOpLogVo = new BizOpLogVo();            bizOpLogVo.setActor(actor);            bizOpLogVo.setEntityType(entity.replace("ServiceImpl",""));            bizOpLogVo.setAction(methodType(method));            bizOpLogVo.setUdf1(args.length()>200?args.substring(0,200):args);            bizOpLogVo.setUdf2(method);            bizOpLogVo.setUdf3(getServiceMthodDescription(point,"ServiceLog"));            bizOpLogVoService.createBizOpLog(bizOpLogVo);        } catch (Exception e) {            logger.error("日志类异常");            logger.error(e.getMessage());        }    }    /**     * 用户操作异常     * @param jp     * @param e     * @throws Exception     */    @AfterThrowing(pointcut = "serviceAspect()", throwing = "e")    public void afterThrowing2Service(JoinPoint jp,Throwable e) throws Exception{        logger.error("异常:"+jp.getTarget().getClass().getName()+"."+jp.getSignature().getName());        logger.error(e.getMessage());    }    /**     * 系统服务层操作     * @param point     */    @AfterReturning("sysSecureServiceAspect()")    public void doAfter2Sys(JoinPoint point){        try {            String actor ="";            if(SecurityContextHolder.getContext().getUser()!=null){                actor = SecurityContextHolder.getContext().getUser().getLoginName();            }            String method = point.getSignature().getName();            String entity = point.getTarget().getClass().getSimpleName();            String args =  getAvailableArgs(point.getArgs());            SecureOpLog secureOpLog = new SecureOpLog();            secureOpLog.setActor(actor);            secureOpLog.setEntityType(entity.replace("ServiceImpl",""));            secureOpLog.setAction(methodType(method));            secureOpLog.setUdf1(args.length()>200?args.substring(0,200):args);            secureOpLog.setUdf2(method);            secureOpLog.setUdf3(getServiceMthodDescription(point,"SysSecureServiceLog"));            secureOpLogDao.insert(secureOpLog);        } catch (Exception e) {            logger.error("日志类异常");            logger.error(e.getMessage());        }    }    //在方法抛出异常是拦截    @AfterThrowing(pointcut = "sysSecureServiceAspect()", throwing = "e")    public void afterThrowing2Sys(JoinPoint jp,Throwable e) throws Exception{        logger.error("异常:"+jp.getTarget().getClass().getName()+"."+jp.getSignature().getName());        logger.error(e.getMessage());    }    private ActionType methodType(String method){        method =  method.toLowerCase();        if(method.contains("create")||method.contains("insert")||method.contains("save")){            return ActionType.CREATE;        }else if(method.contains("delete")){            return ActionType.DELETE;        }else if(method.contains("edit")||method.contains("update")){            return ActionType.UPDATE;        }else if(method.contains("frozen")){            return ActionType.FROZEN;        }else if(method.contains("unfrozen")) {            return ActionType.UNFROZEN;        }        else {            return ActionType.SEARCH;        }    }    private String  getAvailableArgs(Object [] args){       String  strArgs =  Arrays.toString(args);        String []params= strArgs.split(",");        String argsStr="";        for (String arg:params){            if(arg.contains("[")&&!arg.endsWith(">")){                argsStr = arg.substring(arg.lastIndexOf("["));            }else if(!arg.contains("[")&&!arg.endsWith(">")){                argsStr+=","+arg;            }        }        return argsStr;    }    private   String getServiceMthodDescription(JoinPoint joinPoint ,String which)            throws Exception {        String targetName = joinPoint.getTarget().getClass().getName();        String methodName = joinPoint.getSignature().getName();        Object[] arguments = joinPoint.getArgs();        Class targetClass = Class.forName(targetName);        Method[] methods = targetClass.getMethods();        String description = "";        for (Method method : methods) {            if (method.getName().equals(methodName)) {                Class[] clazzs = method.getParameterTypes();                if (clazzs.length == arguments.length) {                    if(which.equals(ServiceAopType.ServiceLog.toString())) {                        description = method.getAnnotation(ServiceLog.class).description();                    }else if(which.equals(ServiceAopType.SysSecureServiceLog.toString())){                        description = method.getAnnotation(SysSecureServiceLog.class).description();                    }                    break;                }            }        }        return description;    }}

1.4在具体的方法上需要时添加链接点

@Override    @SysSecureServiceLog(description= "delete user")    public int deleteUser(Long userId){        int res = userDao.delete(userId);        associateDao.deleteByAssoc(AssociateTable.ROLE_USER,userId);        return res;    }

2方式二通过xml声明配置实现：

2.1首先在xml配置如下：因为考虑到日志保存在操作异常或者事务回滚的情况下 操作日志不需要写入数据库，或者也需要回滚，故用了 配置的order顺序来解决。

2.2包路径图，别把切入点的类添加到连接点扫描中：execution表达式可百度，根据业务需要配置不同的拦截规则。

2.3切入点代码

package com.oasis.wyvern.res.service.base;import com.oasis.wyvern.res.common.biz.enums.base.type.ActionType;import com.oasis.wyvern.res.common.biz.vo.record.oplog.BizOpLogVo;import com.oasis.wyvern.res.model.base.context.secure.SecurityContextHolder;import com.oasis.wyvern.res.service.base.record.oplog.BizOpLogService;import org.aspectj.lang.JoinPoint;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import java.util.Arrays;public class Aop2Log {    private static final Logger logger = LoggerFactory.getLogger(Aop2Log.class);    @Autowired    private BizOpLogService bizOpLogVoService;    public void doAfter(JoinPoint point){        String actor ="";        if(SecurityContextHolder.getContext().getUser()!=null){            actor = SecurityContextHolder.getContext().getUser().getLoginName();        }        String method = point.getSignature().getName();        String entity = point.getTarget().getClass().getSimpleName();        String args =  getAvailableArgs(Arrays.toString(point.getArgs()));        BizOpLogVo bizOpLogVo = new BizOpLogVo();        bizOpLogVo.setActor(actor);        bizOpLogVo.setEntityType(entity.replace("ServiceImpl",""));        bizOpLogVo.setAction(methodType(method));        bizOpLogVo.setUdf1(args.length()>200?args.substring(0,200):args);        bizOpLogVo.setUdf2(method);        bizOpLogVoService.createBizOpLog(bizOpLogVo);    }    //在方法抛出异常是拦截    public void afterThrowing(JoinPoint jp,Throwable e) throws Exception{        logger.error("异常:"+jp.getTarget().getClass().getName()+"."+jp.getSignature().getName());        logger.error(e.getMessage());    }    private ActionType methodType(String method){        method =  method.toLowerCase();        if(method.contains("create")||method.contains("insert")||method.contains("save")){            return ActionType.CREATE;        }else if(method.contains("delete")){            return ActionType.DELETE;        }else if(method.contains("edit")||method.contains("update")){            return ActionType.UPDATE;        }else if(method.contains("frozen")){            return ActionType.FROZEN;        }else if(method.contains("unfrozen")) {            return ActionType.UNFROZEN;        }        else {            return ActionType.SEARCH;        }    }    private String  getAvailableArgs(String args){        String []params= args.split(",");        String argsStr="";        for (String arg:params){            if(arg.contains("[")&&!arg.endsWith(">")){                argsStr = arg.substring(arg.lastIndexOf("["));            }else if(!arg.contains("[")&&!arg.endsWith(">")){                argsStr+=","+arg;            }        }        return argsStr;    }}

好了，到此为止两种方法完全介绍完整。