java 소스

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import java.util.ArrayList;
import java.util.HashMap;

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

import common.Constants;
import common.component.IComponent;
import common.util.HttpUtil;

import db.Dao;

public class CompanyInfoSearch implements IComponent{

 private String forward유알엘 = null;
 
 public CompanyInfoSearch(){}
 
 public CompanyInfoSearch(String forwar유알엘l){
  this.forward유알엘 = forward유알엘;
 }
 
 public String doComponent(HttpServletRequest req, HttpServletResponse res)throws Exception {
  
  HttpSession session = null;
  String cpId   = null;

  
  try{
            System.out.println("");
   session = req.getSession();
   cpId = (String)session.getAttribute(Constants.LOGIN_ID);
   
   if(cpId == null || cpId.length() == 0){
    
    req.setAttribute("url", this.forward유알엘);
    return Constants.HOMEPAGE_LOGIN_PAGE;
   
   }
   
   long rownum     = 0;
   int rowCount    = 10;
   int navigatorCount   = 10;
   int currentPage    = 1;
   
    HashMap<String, Object> parameter = new HashMap<String, Object>();
    
    parameter.put("cpId",   cpId);
    parameter.put("searchItem",  HttpUtil.getParameter(req, "companyInfoSearchItem"));
    parameter.put("searchKeyword",  HttpUtil.getParameter(req, "companyInfoSearchKeyword"));
    parameter.put("typeOfBusiness", req.getParameterValues("typeOfBusiness"));
    parameter.put("companyType",  req.getParameterValues("companyType"));
    parameter.put("establishDate",  req.getParameterValues("establishDate"));
    parameter.put("employeeCnt",  req.getParameterValues("employeeCnt"));
    parameter.put("rowCount",    rowCount);
    parameter.put("currentPage",  HttpUtil.getParameter(req, "companyInfoCurrentPage"));
  
    Integer maxNoInteger = (Integer)Dao.selectForObject("cp.companyInfoTableSelectForMaxNo", parameter);
    int maxNo = maxNoInteger.intValue();
    
    if(HttpUtil.getParameterIntValue(req, "companyInfoRownum") == 0)
     
     parameter.put("rownum", maxNo);
    else
     parameter.put("rownum", HttpUtil.getParameterIntValue(req, "companyInfoRownum"));
    
    ArrayList<HashMap<String, Object>> companyInfoList = (ArrayList<HashMap<String, Object>>)Dao.selectForList("cp.companyInfoTableSelectForBoard", parameter);   
    
    req.setAttribute("companyInfoList",       companyInfoList);
    req.setAttribute("companyInfoMaxNo",      maxNo);
    req.setAttribute("companyInfoCurrentPage",  HttpUtil.getParameterIntValue(req, "companyInfoCurrentPage"));
    req.setAttribute("companyInfoSearchItem",  parameter.get("searchItem"));
    req.setAttribute("companyInfoSearchKeyword", parameter.get("searchKeyword"));
    req.setAttribute("typeOfBusiness",     req.getParameterValues("typeOfBusiness"));
    req.setAttribute("companyType",     req.getParameterValues("companyType"));
    req.setAttribute("establishDate",     req.getParameterValues("establishDate"));
    req.setAttribute("employeeCnt",     req.getParameterValues("employeeCnt"));
   
  } catch(Exception ex){
   throw ex;
  }
  
  return this.forward유알엘l;
 }
 
}
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jsp 소스
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<table width="100%" class="" cellpadding="0" cellspacing="0">
 <tr>
  <td colspan="2" height="1" style="padding:0;" bgcolor="#E9E9E9">
   <table width="770px" border="0" cellspacing="0" cellpadding="0">
   <tr>
    <th >업      종 :</th>
    <td><input type="checkbox" name="typeOfBusiness" value="1" >서비스·교육·금융·유통 </td>
    <td><input type="checkbox" name="typeOfBusiness" value="2" />미디어·광고·문화·예술 </td>
    <td><input type="checkbox" name="typeOfBusiness" value="3" />IT·정보통신 </td>
    <td><input type="checkbox" name="typeOfBusiness" value="4" />제조·통신·화학·건설 </td>
    <td colspan="2"> </td>
   <tr>
   <tr>
    <th >기업유형 :</th>
    <td><input type="checkbox" name="companyType" value="대기업" />대기업</td>
    <td><input type="checkbox" name="companyType" value="공기업" />공기업</td>
    <td><input type="checkbox" name="companyType" value="코스닥등록" />코스닥등록</td>
    <td><input type="checkbox" name="companyType" value="외국계" />외국계</td>
    <td><input type="checkbox" name="companyType" value="일반기업" />일반기업</td>
    <td> </td>
   </tr>
   <tr>
    <th >설립년수 : </th>
    <td><input type="checkbox" name="establishDate" value="1" />5년 미만</td>
    <td><input type="checkbox" name="establishDate" value="2" />5~9년</td>
    <td><input type="checkbox" name="establishDate" value="3" />10~19년</td>
    <td><input type="checkbox" name="establishDate" value="4" />20~29년</td>
    <td><input type="checkbox" name="establishDate" value="5" />30년 이상</td>
    <td> </td>
   </tr>
   <tr>
    <th >임직원수 : </th>
    <td><input type="checkbox" name="employeeCnt" value="1" />10명 미만 </td>
    <td><input type="checkbox" name="employeeCnt" value="2" />11~19명</td>
    <td><input type="checkbox" name="employeeCnt" value="3" />20~49명</td>
    <td><input type="checkbox" name="employeeCnt" value="4" />50~99명</td>
    <td><input type="checkbox" name="employeeCnt" value="5" />100명 이상</td>
    <td>
     <a href=":search()">
      <img src="" alt="검색">
     </a>
    </td>
   </tr>
   </table>
  </td>
  </tr>
</table>

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<td><input type="checkbox" name="typeOfBusiness" value="1" >서비스·교육·금융·유통 </td>
    <td><input type="checkbox" name="typeOfBusiness" value="2" />미디어·광고·문화·예술 </td>
    <td><input type="checkbox" name="typeOfBusiness" value="3" />IT·정보통신 </td>
    <td><input type="checkbox" name="typeOfBusiness" value="4" />제조·통신·화학·건설 </td>

같은 name의 체크박스 체크한 것들을 getParameterValues로 받아와서 처리하고
다시 jsp로 체크했던 체크박스를 자동으로 체크해줘야하는데( 체크박스 체크상태 유지) jsp 에서 어떻게 받아서 처리해할지 모르겠어요.ㅜㅜ
도움좀 부탁드릴게요. ㅜㅜ