presearch.java

一个不错的bbs论坛系统．对初学者很有帮助

package com.yhbbs.article.search.action;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import com.yhbbs.bbs.biz.BbsPropBiz;
import com.yhbbs.forum.itface.ForumJump;
import com.yhbbs.user.itface.bean.UserSession;
import com.yhbbs.user.online.Postion;
import com.yhbbs.utils.Constants;
import com.yhbbs.yhclass.biz.ClassBiz;
import com.yhbbs.yhclass.itface.ClassJump;

/**
 * <p>Title:论坛搜索Action</p>
 * <br>跳转到搜索页面
 * <br><b>WebSite: www.yyhweb.com</b>
 * <br><b>CopyRight: yyhweb[由由华网]</b>
 * @author stephen
 * @version YHBBS-2.0
 */
public class PreSearch extends Action {
	public ActionForward execute(ActionMapping mapping,ActionForm form,
			  HttpServletRequest request,HttpServletResponse response) {
		ActionMessages errors = new ActionMessages();
		UserSession us = (UserSession)request.getSession(true).getAttribute(Constants.bbsuser);
		int canGuest = BbsPropBiz.getParameter().getGuestSearch();//是否允许未登录用户使用论坛搜索功能
		if(canGuest==0 && us==null){
			errors.add("article.search.no.user",new ActionMessage("article.search.no.user"));
			saveErrors(request,errors);
			return mapping.findForward("Failure");
		}
		
		Postion.ChangPost(request,"论坛搜索");
		request.setAttribute("forumstr",selectforum());
		return mapping.findForward("Success");
	}
	
	private String selectforum(){
		StringBuffer sb = new StringBuffer();
		String str = "";
   	 	List allclass = ClassBiz.getJumpClassF();
   	 	// 变量定义
   	 	ClassJump jbbsclass = null;
        String jclassName = "";
        List forums = null;
        ForumJump jforum = null;
        String jforumName = "";
		 int jforumId = 0;
		 int i = 0,j = 0;
   	     sb.append("<select name=schfmId onchange='selectClass()'>");
            sb.append("<option value=-1>所有论坛</option>");
            for(i=0;i<allclass.size();i++){
           	 jbbsclass = (ClassJump) allclass.get(i);
           	 jclassName = jbbsclass.getClassname();
           	 sb.append("<option value=0>＋");
       		 sb.append(jclassName);
       		 sb.append("</option>");
       		 
       		 forums = jbbsclass.getAllforum();
           	 for(j=0;j<forums.size();j++){
           		 jforum = (ForumJump) forums.get(j);
           		 jforumName = jforum.getFname();
           		 jforumId = jforum.getId();
           		 sb.append("<option value=");
        			 sb.append(jforumId);
        			 sb.append(">&nbsp;├ 『");
           		 sb.append(jforumName);
           		 sb.append("』 </option>");
           	 }
            }
            sb.append("</select>");
            str = sb.toString();
            sb = null;
            return str;
	}
}