前言：

通过自定义注解和AOP结合的方式，实现日志的记录功能

大致流程:项目运行->用户操作调用业务处理类->通过自定义的注解(我理解为一个切点)->进入到AOP切面类(在这里可以获得业务处理类的类名，方法名，通过request获取操作者ip，自定义的操作名，时间等)->把获取的信息记入数据库实现日志的记录->记录成功后返回业务处理类，下面是代码。

1.spring-mvc配置文件

　　

2.自定义注解类

package com.bs.annotation;import java.lang.annotation.*;@Documented@Retention(RetentionPolicy.RUNTIME)@Target(ElementType.METHOD)public @interface SysLog {	String value() default "";}

　　

3.AOP切面类

package com.bs.aop;import java.lang.reflect.Method;import java.text.DateFormat;import java.util.Date;import java.util.Enumeration;import javax.servlet.http.HttpServletRequest;import org.apache.commons.lang.StringUtils;import org.aspectj.lang.ProceedingJoinPoint;import org.aspectj.lang.annotation.Around;import org.aspectj.lang.annotation.Aspect;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;import org.springframework.web.context.request.RequestContextHolder;import org.springframework.web.context.request.ServletRequestAttributes;import com.bs.annotation.SysLog;import com.bs.basic.service.BsSysLogService;@Aspect@Componentpublic class LogAspect {	    private static final String LOG_CONTENT = "[类名]:%s 
[方法]:%s 
[参数]:%s 
[IP]:%s";        @Autowired    public BsSysLogService logService;        @Around("@annotation(com.bs.annotation.SysLog)")    public Object saveLog(ProceedingJoinPoint joinPoint) throws Throwable{				DateFormat ddtf = DateFormat.getDateTimeInstance();		ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();		HttpServletRequest request = attributes.getRequest();		Object result = null;		String methodName = joinPoint.getSignature().getName();        Method method = currentMethod(joinPoint, methodName);        SysLog log = method.getAnnotation(SysLog.class);        String content =buildeContent(joinPoint, methodName, request);                logService.insert(content,ddtf.format(new Date()),"-",log.value());        try{        	result=joinPoint.proceed();        }catch(Exception exception){        	        }finally{        }        return result;	}		 /**     * 获取当前方法     * @param joinPoint     * @param methodName     * @return     */    public  Method currentMethod(ProceedingJoinPoint joinPoint,String methodName){        Method[] methods = joinPoint.getTarget().getClass().getMethods();        Method resultMethod = null;        for (Method method : methods) {            if (method.getName().equals(methodName)) {                resultMethod = method;                break;            }        }        return resultMethod;    }        /**     * 日志内容     * @param joinPoint     * @param methodName     * @param request     * @return     */    public String buildeContent(ProceedingJoinPoint joinPoint, String methodName, HttpServletRequest request) {        String className = joinPoint.getTarget().getClass().getName();        Object[] params = joinPoint.getArgs();        StringBuffer bf = new StringBuffer();        if (params != null && params.length > 0) {            Enumeration
     
       paraNames = request.getParameterNames();            while (paraNames.hasMoreElements()) {                String key = paraNames.nextElement();                bf.append(key).append("=");                bf.append(request.getParameter(key)).append("&");            }            if (StringUtils.isBlank(bf.toString())) {                bf.append(request.getQueryString());            }        }        return String.format(LOG_CONTENT, className, methodName, bf.toString(),getRemoteAddress(request));    }            /**    *    * 获取请求客户端ip    *    * @param request    *    * @return ip地址    *    */   public static  String getRemoteAddress(HttpServletRequest request) {       String ip = request.getHeader("x-forwarded-for");       if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {           ip = request.getHeader("Proxy-Client-IP");       }       if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {           ip = request.getHeader("WL-Proxy-Client-IP");       }       if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {           ip = request.getRemoteAddr();       }       return ip;   }}
     

4.自定义注解配置在需要记录的业务处理类

@SysLog("删除场景")	@Override	public String deleteScene(String cmdValues) {		//业务逻辑....	}

@SysLog("更新场景")	@Override	public String updateScene(String value) {        //业务处理...}

...

记录的日志是这样的