jsp分页

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InberGong 10:24 2003-12-16
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jsp运行环境:
windows2000+tomcat-4.1.24+j2sdk-1_4_1_01-windows-i586+jdbcforsql2000+sql2000
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1配置Tomcat 4.1\webapps\examples\WEB-INF中的web.xml加入
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  <taglib>
    <taglib-uri>http://xiaolie.vicp.net/divpage-taglib</taglib-uri>
    <taglib-location>/WEB-INF/divpage-taglib.tld</taglib-location>
  </taglib>
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2新建一个文件命名为:divpage-taglib.tld将些文件放在WEB-INF目录下.
内容为:
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<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
  PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
  "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
  <tlib-version>1.0</tlib-version>
  <jsp-version>1.2</jsp-version>
  <short-name>page list</short-name>
  <!--<uri>http://jakarta.apache.org/tomcat/kbq-taglib</uri>-->
  <uri>http://xiaolie.vicp.net/kbq-taglib</uri>
  <description>
 A tab library for list pages
  </description>

  <!-- a set of pages roller tag -->
  <tag>
    <name>pages_roller</name>
    <tag-class>com.xiaolie.tag.pages.PagesRollerTag</tag-class>
    <tei-class>com.xiaolie.tag.pages.PagesRollerExtraInfo</tei-class>
    <description>
      if have next page to show a content of link to next page.
      this rag is write after list and must have a attribute "sumPages"
    </description>
    <attribute>
      <name>sumPages</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
    </attribute>
  </tag>

  <tag>
    <name>first_page</name>
    <tag-class>com.xiaolie.tag.pages.FirstPageTag</tag-class>
    <description>
      if current page is not first page to show a content of link to first page.
    </description>
  </tag>

  <tag>
    <name>next_page</name>
    <tag-class>com.xiaolie.tag.pages.NextPageTag</tag-class>
    <!--<tei-class>com.xiaolie.tag.pages.NextPageExtraInfo</tei-class>-->
    <description>
      if have next page to show a content of link to next page.
    </description>
  </tag>

  <tag>
    <name>prev_page</name>
    <tag-class>com.xiaolie.tag.pages.PrevPageTag</tag-class>
    <description>
      if have prev page to show a content of link to next page.
    </description>
  </tag>

  <tag>
    <name>last_page</name>
    <tag-class>com.xiaolie.tag.pages.LastPageTag</tag-class>
    <description>
        if current page is not last page to show a content of link to first page.
    </description>
  </tag>

  <tag>
     <name>list_control</name>
     <tag-class>com.xiaolie.tag.pages.ListControlTag</tag-class>
     <tei-class>com.xiaolie.tag.pages.ListControlExtraInfo</tei-class>
     <description>
        It contain sub tag: list_prev_tag,list_page,list_next_tag.
 You can set Max list number attribute here.
     </description>
     <attribute>
      <name>maxNum</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
    </attribute>
  </tag>

  <tag>
    <name>list_prev_pages</name>
    <tag-class>com.xiaolie.tag.pages.ListPrevPageTag</tag-class>
    <!--<tei-class>com.xiaolie.tag.pages.ListPrevPageExtraInfo</tei-class>-->
    <description>
      show a prev 10 pages list.
    </description>
  </tag>

  <tag>
    <name>list_pages</name>
    <tag-class>com.xiaolie.tag.pages.ListPageTag</tag-class>
    <tei-class>com.xiaolie.tag.pages.ListPageExtraInfo</tei-class>
    <description>
      show a page list.
    </description>
  </tag>

   <tag>
    <name>list_next_pages</name>
    <tag-class>com.xiaolie.tag.pages.ListNextPageTag</tag-class>
    <!--<tei-class>com.xiaolie.tag.pages.ListNextPageExtraInfo</tei-class>-->
    <description>
      show a next 10 pages list.
    </description>
  </tag>

</taglib>
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3使用方法:
有页面头部加上
<%@ taglib uri="http://xiaolie.vicp.net/divpage-taglib" prefix="dp"%>
以下是在一个表格中的分页代码:
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<table width="92%" border="0" cellspacing="0" align="center">
        <tr>
          <td valign="top"> <table width="100%" border="0" cellspacing="1" align="center" bgcolor="#E4E4E4" cellpadding="3">
              <tr bgcolor="#eeeeee">
                <td class="word">&nbsp; </td>
                <%
  int intRowCount; //记录总数
  int intPageCount; //总页数
  int intPage; //待显示页码
  int intPageSize; //一页显示的记录数
  intPageSize = 5;
   //out.close();
   String sql = "select * from reged_user";
   ResultSet rs=stmt.executeQuery(sql);
  //将指针移到最后
  rs.last();
  //统计页数
  intRowCount = rs.getRow();
  //记算总页数
  intPageCount = (intRowCount+intPageSize-1) / intPageSize;
  //out.close();
  %><dp:pages_roller sumPages='<%=intPageCount%>'>
                <%
  if(intPageCount>0){
       int tmpNum = 1;
    //将记录指针定位到待显示页的第一条记录上
    int intCpage=java.lang.Integer.parseInt(pageno);
    rs.absolute((intCpage-1) * intPageSize + 1);
    //显示数据
    int i = 0;
    String tmpId,tmpContent,tmpTitle,tmpDates;
  %>
                <td width="51%" class="word"><div align="right">共<%=intRowCount%>条纪录，目前<%=intCpage%>/<%=intPageCount%>页</div></td>
              </tr>
              <%
   
    while(i<intPageSize && !rs.isAfterLast()){      
     //获取各个字段的值
     tmpId=rs.getString("id");
     tmpTitle=rs.getString("easy_name");
     tmpContent=rs.getString("user_name");
     %>
              <tr bgcolor="#FFFFFF">
                <td width="38%" class="word"><%=tmpTitle%></td>
                <td width="11%" class="word"><font face="Arial, Helvetica, sans-serif"><a href="http://<%=tmpContent%>" target="_blank"><%=tmpContent%></a></font></td>
    
              </tr>
              <%
    tmpNum++;
    rs.next();
    i++;
     }
     }
     %>
            </table>
            <p>&nbsp;</p></td>
        </tr>
        <tr>
          <td height="43" valign="top"><div align="center">
              <table width=148 border=0 align="right" cellpadding=0 cellspacing=0>
                <tr>
                  <td width="42" height="33"> <a href="<%=firsturl%>"><img src="images/biao_01.gif" width=36 height=33 alt="" border="0"></a></td>
                  <td width="41"> <a href="<%=prevurl%>"><img src="images/biao_02.gif" width=35 height=33 alt="前<%=intPageSize%>条纪录" border="0"></a></td>
                  <td width="33"> <a href="<%=nexturl%>"><img src="images/biao_03.gif" width=28 height=33 alt="后<%=intPageSize%>条纪录" border="0"></a></td>
                  <td width="32"> <a href="<%=lasturl%>"><img src="images/biao_04.gif" width=32 height=33 alt="" border="0"></a></td>
                </tr>
              </table>
            </div></td>
        </tr></dp:pages_roller>
      </table>
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