pagetool.java

spring+hibernate+struts开发的校务oa系统

package com.yondor.oa.common.utils;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.validator.GenericValidator;
import org.displaytag.tags.TableTagParameters;
import org.displaytag.util.ParamEncoder;

public class PageTool {

	public static int getPageIndex(String idAttribute,
								   HttpServletRequest request,
								   HttpServletResponse response){
	
		
		String pageIndexName= new  ParamEncoder(idAttribute)
					.encodeParameterName(TableTagParameters.PARAMETER_PAGE);
		int  pageIndex = GenericValidator.isBlankOrNull(request.getParameter(pageIndexName)) 
							? 0 :(Integer.parseInt(request.getParameter(pageIndexName))-1  );
		
		return pageIndex;
		
	}
}