showkeyword.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 java.util.*;

public class ShowKeyWord extends ShowCategory
{
	public void doGet(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException
    {
          String inputKeyWord = req.getParameter("inputKeyWord");
          String result = "";
          CardCom com = new CardCom("jdbc:mysql://localhost/mybbs","root", "root123");
          Vector vc = com.getKeyWord(inputKeyWord);
          HashSet set = new HashSet(vc);
          Iterator iterator = set.iterator();
          result = "<Results>";
          if(vc.size()!=0)
          {
        	  String Keyword="";
        	  while(iterator.hasNext())
        	  {
        		  Keyword = iterator.next().toString();
        	      result += ("<Result>"+Keyword+"</Result>");
        	  }
        	  /*for(int i = 0;i<vc.size();++i)
        	  {      		  
        		  Keyword = (String)vc.get(i);
        	      result += ("<Result>"+Keyword+"</Result>");
        	  }*/
          }
          else
        	  result = "<Result>false</Result>";
          result = result+"</Results>";
 		 System.out.println(result);
          String responseHtml = result.toString();
          res.setCharacterEncoding("utf-8");
          res.setContentType("text/xml;charset=utf-8");
          res.setHeader("Pragma","No-cache"); 
          res.setHeader("Cache-Control","no-cache"); 
          res.setDateHeader("Expires", 0); 
          res.getWriter().write(responseHtml);
    }
	public void doPost(HttpServletRequest req,HttpServletResponse res)throws ServletException,IOException
	{
		doGet(req,res);
	}
}