logdeleteaction.java

SSH框架下实现日志记录管理页面的相关功能

package com.db711.web.action.admin.log;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.Action;

import com.db711.data.bean.UserInfo;
import com.db711.model.service.ILogService;
import com.db711.sys.Constant;
import com.db711.sys.StringUtil;
/**
 * @Description: 实现日志记录的多选删除功能
 * @Company: CSSRC
 * @Copyright: Copyright (c) 2008
 * @author：周锦程
 * @since：JDK1.5
 * @version：1.0
 * @date （开发日期）：   2008-03-03
 */
public class LogdeleteAction extends Action {
	static Logger logger = Logger.getLogger(LogdeleteAction.class);
	public LogdeleteAction() {
	}

	//依赖注入ILogService接口的变量实例
	private ILogService logService;
	
	public ILogService getLogService() {
		return logService;
	}

	public void setLogService(ILogService logService) {
		this.logService = logService;
	}

	/**
	 * 处理响应的execute方法
	 */

	public ActionForward execute(ActionMapping actionMapping,
			ActionForm actionForm, HttpServletRequest httpServletRequest,
			HttpServletResponse httpServletResponse) {
		UserInfo user = (UserInfo) httpServletRequest.getSession().getAttribute(Constant.USER);
		if(!(user.getUserRole().equals("admin"))){
			//普通用户没有删除日志信息的权限
			String errorSORT = Constant.errorQuanxian;
			httpServletRequest.setAttribute("ERRORSORT", errorSORT);
			String error = "对不起，您不是管理员,没有删除日志信息的权限!";
			httpServletRequest.getSession().setAttribute("PUBLICINFERROR", error);
			return actionMapping.findForward("warning");
		}
		// 获得页面传递过来的selection的值account,因为可以是多选删除,所以selection
		// 的值可以有多个,将其值取得放入account数组中
		String[] oldno = httpServletRequest.getParameterValues("no");
				
		//no[]为将字符串类型转化成Long型后存储的数组
		Long[]   no=new Long[oldno.length];
		for(int i=0;i<oldno.length;i++){
			//将字符串数组中的元素一一转换成Long型数组中的元素
			no[i]=Long.parseLong(oldno[i]);
			
		}
		
		/**
		 * 实现删除(删除的日志有no.length条记录,因此在循环中进行处理)
		 */
		for (int i = 0; i < no.length; i++) {
			if(no.length>200){
                //普通用户没有删除日志信息的权限
				String error = "对不起，一次最多只能删除200条日志信息,如果要清空日志记录，请点清空日志按纽！";
				httpServletRequest.getSession().setAttribute("PUBLICINFERROR", error);
				return actionMapping.findForward("warning");	
			}
			//删除表中的相关信息
			if (!logService.deleteByLogid(no[i])) {
				// 删除日志表中的信息失败时的转向
				return actionMapping.findForward("failure");
			}
		}
		logger.warn(StringUtil.getLogString(((UserInfo)httpServletRequest.getSession().getAttribute(Constant.USER)).getUserAccount(),"删除了"+no.length+"条日志信息"));
		return actionMapping.findForward("success");
	}

}