Structs2+Spring实现aop日志与问题解决

1.书写切面类

package com.zhangyue.hades.admin.log.userhandle.aop;import java.util.Collection;import java.util.Date;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Map.Entry;import javax.servlet.http.HttpServletRequest;import net.sf.json.JSONArray;import net.sf.json.JSONObject;import org.apache.commons.lang3.StringUtils;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.springframework.beans.factory.annotation.Autowired;import com.zhangyue.hades.admin.AdminConstant;import com.zhangyue.hades.admin.log.userhandle.annotation.UserOperatAnnotation;import com.zhangyue.hades.admin.util.Struts2Utils;import com.zhangyue.hades.common.CommonConstant;import com.zhangyue.hades.core.common.USER_OPERAT_FLAG;import com.zhangyue.hades.core.manager.log.UserOperatLogManager;import com.zhangyue.hades.core.model.acl.User;import com.zhangyue.hades.core.model.acl.UserRole;import com.zhangyue.hades.core.model.log.UserOperatLog;@Aspect //该注解标示该类为切面类   public class UserOperatAspect {       /**       * LogService       * @generated       */      @Autowired    private UserOperatLogManager userOperatLogManagerImpl;  /*      //新增的切面    @Pointcut("execution(* com.zhangyue.hades.admin.web.controller..*.login*(..))")       public void actionAddPointcut(){       }       @After("actionAddPointcut()")    public void excuteAdd(JoinPoint joinPoint) {        System.out.println("after add");    }*/    //标注该方法体为后置通知，当目标方法执行成功后执行该方法体       @AfterReturning("within(com.zhangyue.hades.admin.web.controller..*) && @annotation(anno)")       public void addLogSuccess(JoinPoint jp, UserOperatAnnotation anno){           UserOperatLog model = constuctObj(jp,anno);        model.setIs_success(USER_OPERAT_FLAG.SUCCESS.getFlag());           userOperatLogManagerImpl.save(model);       }       //标注该方法体为异常通知，当目标方法出现异常时，执行该方法体       @AfterThrowing(pointcut="within(com.zhangyue.hades.admin.web.controller..*) && @annotation(anno)", throwing="ex")       public void addLogError(JoinPoint jp,  UserOperatAnnotation anno, RuntimeException ex){           UserOperatLog model = constuctObj(jp,anno);        model.setIs_success(USER_OPERAT_FLAG.ERROR.getFlag());          model.setError_info(ex.toString());        userOperatLogManagerImpl.save(model);       }       /**     * 构建对象     * @param joinPoint     * @param anno     * @return     */    private UserOperatLog constuctObj( JoinPoint joinPoint, UserOperatAnnotation anno){        Object[] parames = joinPoint.getArgs();           String argument = parseParames(parames);           String className = joinPoint.getTarget().getClass().toString();           className = className.substring(className.indexOf("com"));           className = className.substring(className.lastIndexOf(".")+1, className.length());        String signature = joinPoint.getSignature().toString();           String methodName = signature.substring(signature.lastIndexOf(".")+1, signature.indexOf("("));           UserOperatLog model =   new UserOperatLog();           model.setDescription(anno.Desc());           model.setHandle(anno.Handle());        model.setModule(anno.Module());        HttpServletRequest httprequest = Struts2Utils.getRequest();        User user = (User) Struts2Utils.getSession().getAttribute(AdminConstant.LOGIN_USER);        String  ip = getIpAddr(httprequest);//用户IP           model.setCreate_time(new Date());        model.setUser_id(user.getId());        model.setUser_name(user.getName());        List<UserRole> userRoles = user.getRoleList();        if(userRoles.size() > 0){            StringBuilder roleIds = new StringBuilder();            StringBuilder roleIdnames = new StringBuilder();            for(UserRole role:userRoles){                roleIds.append(role.getId()+",");                roleIdnames.append(role.getRole_name()+",");            }            model.setRole_ids(roleIds.toString().substring(0, roleIds.length()-1));            model.setRole_names(roleIdnames.toString().substring(0, roleIdnames.length()-1));        }        HashMap<String, String> request_form = this.getParamsMap(httprequest);        model.setRequest_params(request_form.toString());/*                Object[] args = joinPoint.getArgs();        for(Object a : args){            if(a != null && a instanceof HttpServletRequest){                HttpServletRequest request = (HttpServletRequest)a;                System.out.println(request.getRequestedSessionId());                HttpSession session = request.getSession(true);                Object sessionFlag = session.getAttribute("TokenFlag" + className);                Object requestFlag = request.getParameter("token");                if(sessionFlag != null &&sessionFlag.equals(requestFlag)){ //验证结果一致，既为第一次提交，删除会话中存储的token，并继续执行方法。否则不做任何处理。                    session.removeAttribute("TokenFlag" + className);                    joinPoint.proceed();                }            }        }        *///        ActorVO actor = ((ActorVO)ActionContext.getContext().getSession().get(Constant.SESSION_ACTOR_KEY));           model.setClass_name(className);           model.setMethod_name(methodName);           model.setArgument(argument);           model.setIp(ip);           model.setCreate_time(new Date());           return model;    }    /**       * 解析方法参数       * @param parames 方法参数       * @return 解析后的方法参数       */      private String parseParames(Object[] parames) {           StringBuffer sb = new StringBuffer();           for(int i=0; i<parames.length; i++){               if(parames[i] instanceof Object[] || parames[i] instanceof Collection){                   JSONArray json = JSONArray.fromObject(parames[i]);                   if(i==parames.length-1){                       sb.append(json.toString());                   }else{                       sb.append(json.toString() + ",");                   }               }else{                   JSONObject json = JSONObject.fromObject(parames[i]);                   if(i==parames.length-1){                       sb.append(json.toString());                   }else{                       sb.append(json.toString() + ",");                   }               }           }           String params = sb.toString();           params = params.replaceAll("(\"\\w+\":\"\",)", "");           params = params.replaceAll("(,\"\\w+\":\"\")", "");           return params;       }       /**     * 获取请求IP[已过滤代理IP]     *      * @param request     * @return     */    protected String getIpAddr(HttpServletRequest request) {        String ip = request.getHeader("x-forwarded-for");        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {            ip = request.getHeader("Proxy-Client-IP");        }        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {            ip = request.getHeader("WL-Proxy-Client-IP");        }        if (StringUtils.isBlank(ip) || "unknown".equalsIgnoreCase(ip)) {            ip = request.getRemoteAddr();        }        return ip;    }    /**     * 解析参数成map.     *      * @param req request     * @return map参数集     */    private HashMap<String, String> getParamsMap(HttpServletRequest req) {        Map<String, String[]> originalParaMap = req.getParameterMap();        if (null == originalParaMap || originalParaMap.isEmpty()) {            return null;        }        HashMap<String, String> params = new HashMap<String, String>();/*        String ip = this.getIpAddr(req);        params.put("req_ip", ip);*/        String value = null;        for (Entry<String, String[]> entry : originalParaMap.entrySet()) {            String[] values = entry.getValue();            if (null == values || values.length == 0) {                value = StringUtils.EMPTY;            } else if (values.length == 1) {                value = values[0];            } else {                value = StringUtils.join(values, CommonConstant.SEPARATOR_COMMA);            }            params.put(entry.getKey(), value);        }        return params;    }}  

2.注解

package com.zhangyue.hades.admin.log.userhandle.annotation;import java.lang.annotation.Documented;import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;@Target({ElementType.METHOD})   @Retention(RetentionPolicy.RUNTIME)   @Documented  public @interface UserOperatAnnotation {       String Desc() default "";       String Module() ;    String Handle() ;}  

3.配置文件配置

    <aop:aspectj-autoproxy /> <!-- 这一步就完成了@AspectJ的支持，从而可以实现通过注解方式将通知编织到非公共方法中。 -->    <bean id="userHandleAspect" class="com.zhangyue.hades.admin.log.userhandle.aop.UserOperatAspect"></bean>  

4.使用

   /**     * 用户登录     */    @UserOperatAnnotation(Handle="登录",Module=module)    public void login() {        String user_name = Struts2Utils.getParameter("user_name");        String user_pwd = Struts2Utils.getParameter("user_pwd");        JSONObject ajaxJson = new JSONObject();        if (StringUtils.isBlank(user_name) || StringUtils.isBlank(user_pwd)) {            ajaxJson.put("success", false);            ajaxJson.put("msg", "用户名或密码错误.");            Struts2Utils.renderJson(ajaxJson);            return;        }        User user = userManager.findUserByName(user_name);        if (user == null) {            ajaxJson.put("success", false);            ajaxJson.put("msg", "用户名或密码错误.");            Struts2Utils.renderJson(ajaxJson);            return;        }        String pwd = MD5.md5(user_pwd.trim()).toUpperCase();        if (!pwd.equalsIgnoreCase(user.getPassword())) {            ajaxJson.put("success", false);            ajaxJson.put("msg", "用户名或密码错误.");            Struts2Utils.renderJson(ajaxJson);            return;        }        ajaxJson.put("success", true);        Struts2Utils.getSession().setAttribute(AdminConstant.LOGIN_USER, user);        Struts2Utils.getSession().setAttribute(AdminConstant.VISIBLE_MENU, menuService.findVisibleMenu(user));        Struts2Utils.renderJson(ajaxJson);    }

注意:对于Structs中，一般需要增加:

<constant name="struts.objectFactory.spring.autoWire.alwaysRespect" value="true" />

　以便Structs2中优先使用Spring的装配类，就是Spring来负责类的加载，初始化。