delsomeserchcard.java

一个信息发布系统 基于jsp+servlet+tomcat 用户分管理员跟普通用户 普通用户有发布信息 查询信息 修改信息 回复信息 管理员拥有普通用户的功能 此外还具有删除信息 管理信息的回复的功能

package control;
import java.io.IOException;
import javax.servlet.http.*;
import javax.servlet.*;

import model.*;
import java.util.*;

public class DelSomeSerchCard extends ShowCategory
{
	public void doPost(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException
    {
		String[] someCardID = req.getParameterValues("checkbox");
		int[] realCardID = new int[someCardID.length];
		String Condition = req.getParameter("Condition");
		String CPath = req.getParameter("CPath");
    	String Keyword = (String)req.getParameter("Keyword");
    	int pagenum = Integer.parseInt(req.getParameter("pagenum"));
    	String Sort_Condition = (String)req.getParameter("sortcondition");      //2008.11.19修改  取得排序方式
    	System.out.println("DelSoomeSerchCard By: " + Sort_Condition);
        int total = 0;
    	int pagecount = 0;
    	boolean result = false;
    	CardCom com = new CardCom("jdbc:mysql://localhost/mybbs","root", "root123");
    	
    	Vector vc =new Vector();
        if(((Boolean)req.getSession().getAttribute("AdminOrNot")).booleanValue())//如果是管理员
        {
        	for(int i=0;i < someCardID.length;++i)
    		{
    			realCardID[i] = Integer.parseInt(someCardID[i]);   //取得所选中的文章ID
    			result = com.delCard(realCardID[i]);
    			if(result==false)
    				break;
    		}
        	if(Condition.equals("ByContent"))    //如果按内容或关键字搜索
            {
        	   //Vector temp = com.getAllSerchCard(Keyword, CPath,Sort_Condition);
         	   //total = temp.size();  
        		total = com.getCountSerchCard(CPath, Keyword, Sort_Condition);
         	   
                /*for(int i = (pagenum-1)*8;(i < pagenum*8)&&(i < total);++i)
       	        {
       		         vc.add(temp.get(i));
       	        }*/
        		vc = com.getAllCardByKeyword(Keyword, CPath, pagenum, Sort_Condition);
       	   
       	        if(total != 0 && vc.size()==0 && pagenum > 1)
       	        {
       		         pagenum = pagenum -1;
       		         /*for(int i = (pagenum-1)*8;(i < pagenum*8)&&(i < total);++i)
          	         {
          		          vc.add(temp.get(i));
          	          }*/
       		          vc = com.getAllCardByKeyword(Keyword, CPath, pagenum, Sort_Condition);
       	        }

            	if(total % 8==0)
            		pagecount  = total/8;
            	else
            		pagecount = ((int)total/8)+1;
            }
        	
            else
            {
         	   UserCom com2 = new UserCom("jdbc:mysql://localhost/mybbs","root", "root123");
        		   total = com2.getTieziShuliang(Keyword);
        		   if(total!=0)
        		   {
        			   vc = com.getCardByUserName(Keyword, pagenum,Sort_Condition);
        			   if(vc.size()==0&&pagenum>1)
        			   {
        				   pagenum = pagenum - 1;
        				   vc = com.getCardByUserName(Keyword, pagenum,Sort_Condition);
        			   }
        			   if(total % 8==0)
        				   pagecount  = total/8;
        			   else
        				   pagecount = ((int)total/8)+1;
        		   }   
            }
           req.setAttribute("NewsCount",new Integer(total) );
           req.setAttribute("allcard", vc);
           req.setAttribute("Condition", Condition);
           req.setAttribute("cname","all");
           req.setAttribute("cpath",CPath);
           req.setAttribute("Keyword",Keyword);
           req.setAttribute("pagenum",String.valueOf(pagenum));  //当前页数
       	   req.setAttribute("pagecount", String.valueOf(pagecount));//总共需要多少页面数
       	   req.setAttribute("command", "guanli");
       	   req.setAttribute("sortcondition", Sort_Condition); //2008.11.19修改  排序
       	   if(result==true)
       		   req.setAttribute("Message","删除文章成功，页面已被刷新");   
       	   else
       		   req.setAttribute("Message","删除文章失败，页面已被刷新");
       	   tiaoZhuan(req,res,"/ShowSerchCard.jsp");
       }    
    }
}