業務場景：業務要求記錄用戶在系統的操作行為，并保存到數據庫當中。

1、自定義注解，記錄操作日志

import java.lang.annotation.Documented;import java.lang.annotation.ElementType;import java.lang.annotation.Inherited;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;/*** @company  ********** @description 類的方法描述注解* @author zzg* @create 2017-02-03==17*/@Target(ElementType.METHOD)   @Retention(RetentionPolicy.RUNTIME)   @Documented  @Inherited  public @interface MethodAction {	/**	 * 方法描述	 * @return	 */	public String optionDescription() default "no description"; 		/**	 * 方法名稱	 * @return	 */	public String methodName() default "no method name"; }2、切面類
package aspect;import org.aspectj.lang.PRoceedingJoinPoint;import org.apache.commons.lang.StringUtils;import org.springframework.web.context.request.RequestContextHolder;import org.springframework.web.context.request.ServletRequestAttributes;import com.alibaba.fastjson.JSON;import com.wlsq.kso.annotation.MethodAction;import com.wlsq.kso.entity.AccountSysLog;import com.wlsq.kso.service.AccountSysLogService;import com.wlsq.kso.util.SpringContextUtil;import java.lang.reflect.Method;import java.util.Date;import javax.servlet.http.HttpServletRequest;public class AccountSysOptionLogAspect {		public Object doSystemLog(ProceedingJoinPoint point) throws Throwable {				// 切入方法名稱		String methodName = point.getSignature().getName();				   		// 目標方法不為空		if (StringUtils.isNotEmpty(methodName)) {			String targetName = point.getTarget().getClass().getName();  			Class targetClass = Class.forName(targetName);						Method[] methods = targetClass.getMethods();			for (Method m : methods) { 				  if (m.getName().equals(methodName)) { 					  boolean hasAnnotation = m								.isAnnotationPresent(MethodAction.class);						if (hasAnnotation) {							HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder									.getRequestAttributes()).getRequest();		                    //請求參數							String parame = null;							StringBuilder builder = new StringBuilder();														// 用戶openId							String userOpenId = request.getParameter("userOpenId") == null ? null									: request.getParameter("userOpenId").trim();							String accessToken = request.getParameter("accessToken") == null ? null									: request.getParameter("accessToken").trim();// 用戶訪問令牌							String generalAccount = request.getParameter("generalAccount") == null ? null									: request.getParameter("generalAccount").trim();// 未來社區總賬戶							String sellerOpenId = request.getParameter("sellerOpenId") ==null ? null :request.getParameter("sellerOpenId").trim();//商戶唯一編號 							String consumState = request.getParameter("consumState") == null ? null									: request.getParameter("consumState").trim();// 消費狀態【0：未消費，1：支付，2支付超時，訂單取消																					// ，3、已支付，超時需要退款】							String consumType = request.getParameter("consumType") == null ? null									: request.getParameter("consumType").trim();// 消費類型【0：普通商品，1：服務商品，2預售商品，3余額充值】							String money = request.getParameter("money") == null ? null									: request.getParameter("money").trim();// 消費金額							String orderDetail = request.getParameter("orderDetail") == null ? null									: request.getParameter("orderDetail").trim();// 訂單詳情							String orderNum = request.getParameter("orderNum") == null ? null									: request.getParameter("orderNum").trim();// 訂單編號							String playType = request.getParameter("playType") == null ? null									: request.getParameter("playType").trim();// 支付平臺類型【0：余額支付，1：微信支付，2：支付寶支付】							String plateType = request.getParameter("plateType") == null ? null									: request.getParameter("plateType").trim();// 平臺類型【0：未來社區】														String sign = request.getParameter("sign") == null ? null : request									.getParameter("sign").trim();// 數字簽名證書。														//設置支付密碼							String passWord = request.getParameter("password") == null ? null : request									.getParameter("password").trim();//支付密碼。							String optionType = request.getParameter("optionType") == null ? null : request									.getParameter("optionType").trim();// 支付密碼動作。														if(userOpenId != null){								builder.append(";參數userOpenId："+userOpenId);							}							if(accessToken != null){								builder.append(";參數accessToken："+accessToken);							}							if(generalAccount !=null){								builder.append(";參數generalAccount："+generalAccount);							}							if(sellerOpenId !=null){								builder.append(";參數sellerOpenId："+sellerOpenId);							}							if(consumState !=null){								builder.append(";參數consumState："+consumState);							}							if(consumType !=null){								builder.append(";參數consumType："+consumType);							}							if(money !=null){								builder.append(";參數money："+money);							}							if(orderDetail !=null){								builder.append(";參數orderDetail："+orderDetail);							}							if(orderNum !=null){								builder.append(";參數orderNum："+orderNum);							}							if(playType !=null){								builder.append(";參數playType："+playType);							}							if(plateType != null){								builder.append(";參數plateType："+plateType);							}							if(sign !=null){								builder.append(";參數sign："+sign);							}							if(password !=null){								builder.append(";參數password："+password);							}							if(optionType !=null){								builder.append(";參數optionType："+optionType);							}							parame = builder.toString();														MethodAction annotation = m									.getAnnotation(MethodAction.class);							// 方法描述							String methodDescp = annotation.optionDescription();							// 方法名稱							String name = annotation.methodName();														// 用戶IP地址							String ip = getIpAddr(request) == null ? null : getIpAddr(									request).trim();							AccountSysLog log = new AccountSysLog();							log.setOpenId(userOpenId);							log.setOptionDesc(methodDescp);							log.setOptionIp(ip);							log.setOptionMethod(name);							log.setOptionTime(new Date());							log.setParame(parame);							AccountSysLogService accountSysLogService =(AccountSysLogService) SpringContextUtil.getBean("accountSysLogService") ;							accountSysLogService.insert(log);						}				  }   			}								}		return point.proceed();	}	// 返回用IP地址	public String getIpAddr(HttpServletRequest request) {		String ip = request.getHeader(" x-forwarded-for ");		if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {			ip = request.getHeader(" Proxy-Client-IP ");		}		if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {			ip = request.getHeader(" WL-Proxy-Client-IP ");		}		if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {			ip = request.getRemoteAddr();		}		return ip;	}}3、spring-context.xml 切面類型配置
   <bean id="logAspect" class="aspect.AccountSysOptionLogAspect"/>     <aop:config>		<aop:aspect ref="logAspect">			<aop:pointcut id="logPointCut" expression="execution(* com.wlsq.kso.web.*.*(..))"/>			<aop:around pointcut-ref="logPointCut" method="doSystemLog"/>		</aop:aspect>	</aop:config>  通過上面的配置，我們可以清楚知道切入點：com.wlsq.kso.web 下所有控制類的方法。
                                                                 切面類：aspect.AccountSysOptionLogAspect
                                                                 切面方法：doSystemLog
4、切入目標控制層,相關注解配置