输出导航条

/**
	 * <p>
	 * 输出导航条
	 * </p>
	 * 
	 * @author chenwei
	 * @param ses:org.hibernate.Session对象
	 * @param HQLsql:HQL语句
	 * @param page:当前页数
	 * @param pageSize:每页的记录数
	 * @param webpage:显示的页面[若带多个参数,可以这样写 a.jsp?r=XX&t=xx ]
	 * @return java.lang.String
	 * @throws SessionFactoryException
	 */
	public String turnpageBar(Session ses, String HQLsql, int page,
			int pageSize, String webpage) {
		// 总页数
		int pageCount = 0;
		// 总记录数
		int recordCount = 0;

		// 是否带多个参数
		boolean moreParam = webpage.indexOf("?") == -1 ? false : true;

		StringBuffer scriptStr = new StringBuffer();
		scriptStr.append("<script language=\"javascript\">");
		scriptStr.append("function change(objid){");
		scriptStr.append("var p=document.getElementById(objid).value;");
		if (!moreParam)
			scriptStr.append("window.location=\"" + webpage + "?page=\"+p;");
		else
			scriptStr.append("window.location=\"" + webpage + "&page=\"+p;");
		scriptStr.append("}</script>");

		StringBuffer sb = new StringBuffer(scriptStr.toString());

		Transaction tran = null;

		tran = ses.beginTransaction();
		java.util.List list = ses.createQuery(HQLsql).list();
		tran.commit();
		ses.close();
		if (list != null && list.size() > 0)
			recordCount = list.size();
		if (recordCount == 0)
			return "<font color=\"red\">没有记录</font>";
		else {
			pageCount = recordCount % pageSize == 0 ? recordCount / pageSize
					: recordCount / pageSize + 1;
			sb.append("第" + page + "页/共" + pageCount + "页&nbsp;&nbsp;");
			sb.append("共" + recordCount + "条记录&nbsp;每页" + pageSize
					+ "条记录&nbsp;&nbsp;");
			if (!moreParam)
				sb.append("<a href=\"" + webpage + "?page=1\">首页</a>&nbsp;");
			else
				sb.append("<a href=\"" + webpage + "&page=1\">首页</a>&nbsp;");
			if (page > 1) {
				if (!moreParam)
					sb.append("<a href=\"" + webpage + "?page=" + (page - 1)
							+ "\">上一页</a>&nbsp;");
				else
					sb.append("<a href=\"" + webpage + "&page=" + (page - 1)
							+ "\">上一页</a>&nbsp;");
			} else
				sb.append("上一页&nbsp;");
			if (page < pageCount) {
				if (!moreParam)
					sb.append("<a href=\"" + webpage + "?page=" + (page + 1)
							+ "\">下一页</a>&nbsp;");
				else
					sb.append("<a href=\"" + webpage + "&page=" + (page + 1)
							+ "\">下一页</a>&nbsp;");
			} else
				sb.append("下一页&nbsp;");
			
			if(!moreParam)
			sb.append("<a href=\"" + webpage + "?page=" + pageCount
					+ "\">尾页</a>&nbsp;&nbsp;");
			else
				sb.append("<a href=\"" + webpage + "&page=" + pageCount
						+ "\">尾页</a>&nbsp;&nbsp;");

			StringBuffer select = new StringBuffer("转到第");
			select.append("<select id=\"sel\" onchange=\"change('sel')\">");
			for (int i = 1; i <= pageCount; i++) {
				if (page == i)
					select.append("<option value=\"" + i
							+ "\" selected=\"selected\">" + i + "</option>");
				else
					select.append("<option value=\"" + i + "\">" + i
							+ "</option>");
			}
			select.append("</select>页");

			sb.append(select.toString());
			return sb.toString();
		}
	}