pageinfohelper.java

公司自己开发的工作流引擎

package cn.com.iaspec.workflow.client.web.helper;

import cn.com.iaspec.workflow.extbusiness.pagemanage.vo.PageInfo;
import javax.servlet.http.HttpServletRequest;
/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: IASPEC Technologies</p>
 *
 * @author leigm
 * @version 1.0
 */

public class PageInfoHelper{
  private static PageInfoHelper instance = null;

  private PageInfoHelper(){
  }

  public static PageInfoHelper getInstance(){
    if(instance == null){
      instance = new PageInfoHelper();
    }

    return instance;
  }

  public PageInfo buildPageInfo(HttpServletRequest request){
    PageInfo pageInfo = new PageInfo();

    String pageNo = request.getParameter("pageNo");
    String cntPerPage = request.getParameter("cntPerPage");
    String orderField = request.getParameter("orderField");
    String orderType = request.getParameter("orderType");

    if(pageNo == null || "".equals(pageNo)){
      pageInfo.setPageNo(1);
    }else{
      pageInfo.setPageNo(Integer.parseInt(pageNo));
    }

    if(cntPerPage == null || "".equals(cntPerPage)){
      pageInfo.setCntPerPage(10);
    }else{
      pageInfo.setCntPerPage(Integer.parseInt(cntPerPage));
    }

    pageInfo.setOrderField(orderField);
    pageInfo.setOrderType(orderType);

    return pageInfo;
  }
}