Appfuse：记录操作日志

appfuse的数据维护操作都发生在***form页面，与之对应的是***FormController，在Controller中处理数据的操作是onSubmit方法，既然所有的操作都通过onSubmit，那么只需要拦截onSubmit并记录对应的参数即可作为操作日志。

首先要拦截Controller层的方法就需要在dispatcher-servlet.xml中配置拦截器，如下：

<aop:config>        <aop:advisor id="submitTx" advice-ref="txSubmitAdvice"            pointcut="execution(* *..controller.*Controller.onSubmit(..))" order="0" />    </aop:config>    <bean id="txSubmitAdvice" class="com.zcmp.xunji.service.SubmitAdvice"/>

接下来在Service中定义自己的AOP拦截器

package com.disappearwind.service;import org.aopalliance.intercept.MethodInterceptor;import org.aopalliance.intercept.MethodInvocation;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.sPRingframework.aop.AfterReturningAdvice;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.security.core.Authentication;import org.springframework.security.core.context.SecurityContext;import org.springframework.security.core.context.SecurityContextHolder;import org.springframework.security.core.userdetails.UserDetails;import com.disappearwind.model.BaSEObject;import com.disappearwind.model.Role;import com.disappearwind.model.Syslog;import com.disappearwind.model.User;import java.lang.reflect.Method;import java.util.Date;import java.util.Set;import javax.servlet.http.HttpServletRequest;/** * 对Controller中的onSubmit方法监听，记录用户的操作日志 *  * @author mraible */public class SubmitAdvice implements AfterReturningAdvice, MethodInterceptor {    private final Log log = LogFactory.getLog(SubmitAdvice.class);    private UserManager userManager = null;    private GenericManager<Syslog, Long> syslogManager;    @Autowired    public void setSyslogManager(            @Qualifier("syslogManager") GenericManager<Syslog, Long> syslogManager) {        this.syslogManager = syslogManager;    }    @Autowired    public void setUserManager(UserManager userManager) {        this.userManager = userManager;    }    /**     * 在用户的业务操作执行完之后记录操作日志     *      * @param returnValue     *            the user object     * @param method     *            the name of the method executed     * @param args     *            the arguments to the method     * @param target     *            the target class     * @throws Throwable     *             thrown when args[0] is null or not a Base object     */    public void afterReturning(Object returnValue, Method method,            Object[] args, Object target) throws Throwable {        // 方法签名：String onSubmit(APPToken appToken, BindingResult errors,        // HttpServletRequest request,HttpServletResponse response)        try {            if (args[0] instanceof BaseObject) {                BaseObject obj = (BaseObject) args[0];                HttpServletRequest request = (HttpServletRequest) args[2];                // 发生在哪个Model                String modelName = obj.getClass().getSimpleName();                // Model中的数据                String modelData = obj.toString();                // 操作类型，request参数中sava就是Save，request参数中有delete则是Delete                String action = "Save";                if (null != request.getParameter("delete")) {                    action = "Delete";                }                // 记录操作日志到数据库                Syslog syslog = new Syslog();                syslog.setModule(modelName + "." + action);                syslog.setContent(modelData);                syslog.setCreateDate(new Date());                syslog.setCreator(getCurrentUserID());                syslogManager.save(syslog);            }        } catch (Exception ex) {            log.error(ex);        }    }    /**     * 获取当前操作的用户     *      * @return 用户ID     */    private Long getCurrentUserID() {        Long userID = 0l;        SecurityContext ctx = SecurityContextHolder.getContext();        if (ctx.getAuthentication() != null) {            Authentication auth = ctx.getAuthentication();            UserDetails user = (UserDetails) auth.getPrincipal();            userID = this.userManager.getUserByUsername(user.getUsername())                    .getId();        }        return userID;    }}

注意，其中有一段是获取当前登录用户的ID的getCurrentUserID。

Syslog是自己定义的存储日志的数据结构。