http://expert.csdn.net/Expert/topic/624/624919.xml?temp=.3606684

解决方案 »

  1.   

    <%-- 
    功能:JSP数据库操作例程 - 数据分页显示 - JDBC 2.0 - Oracle 
    --%> <%@ page contentType=\"text/html;charset=8859_1\" %&g 
    t; <% 
    //变量声明 
    java.sql.Connection sqlCon; //数据库连接对象 
    java.sql.Statement sqlStmt; //SQL语句对象 
    java.sql.ResultSet sqlRst; //结果集对象 java.lang.String strCon;  //数据库连接字符串 
    java.lang.String strSQL;  //SQL语句 int intPageSize;      //一页显示的记录数 
    int intRowCount;      //记录总数 
    int intPageCount;     //总页数 
    int intPage;        //待显示页码 
    java.lang.String strPage; int i; //设置一页显示的记录数 
    intPageSize = 2; //取得待显示页码 
    strPage = request.getParameter(\"page\"); 
    if(strPage==null){//表明在QueryString中没有page这一个参数,此时显示第一页数据 
      intPage = 1; 

    else{//将字符串转换成整型 
      intPage = java.lang.Integer.parseInt(strPage); 
      if(intPage<1) intPage = 1; 
    } //装载JDBC驱动程序 
    java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); //设置数据库连接字符串 
    strCon = \"jdbc:oracle:thin:@linux:1521:ora4cweb\"; //连接数据库 
    sqlCon = java.sql.DriverManager.getConnection(strCon,\"hzq\",\"hzq\"); //创建一个可以滚动的只读的SQL语句对象 
    sqlStmt = sqlCon.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY); //准备SQL语句 
    strSQL = \"select name,age from test\"; //执行SQL语句并获取结果集 
    sqlRst = sqlStmt.executeQuery(strSQL); //获取记录总数 
    sqlRst.last(); 
    intRowCount = sqlRst.getRow(); //记算总页数 
    intPageCount = (intRowCount+intPageSize-1) / intPageSize; //调整待显示的页码 
    if(intPage>intPageCount) intPage = intPageCount; 
    %> <html> 
    <head> 
    <meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\"> 
    <title>JSP数据库操作例程 - 数据分页显示 - JDBC 2.0 - Oracle</title> 
    </head> <body> <table border=\"1\" cellspacing=\"0\" cellpadding=\"0\"> 
    <tr> 
      <th>姓名</th> 
      <th>年龄</th> 
    </tr> <% 
    if(intPageCount>0){ 
      //将记录指针定位到待显示页的第一条记录上 
      sqlRst.absolute((intPage-1) * intPageSize + 1);   //显示数据 
      i = 0; 
      while(i<intPageSize && !sqlRst.isAfterLast()){ 
       %> 
    <tr> 
      <td><%=sqlRst.getString(1)%></td> 
      <td><%=sqlRst.getString(2)%></td> 
    </tr> 
       <% 
       sqlRst.next(); 
       i++; 
      } 

    %> </table> 第<%=intPage%>页 共<%=intPageCount%>页 <%if(intPage<intPageCount){%><a href=\"jdbc20-oracle.jsp?page=<%=intPage+1%>\">下一页</a><%}%> <%if(intPage>1){%><a href=\"jdbc20-oracle.jsp?page=<%=intPage-1%>\">上一页</a><%}%> </body> 
    </html> <% 
    //关闭结果集 
    sqlRst.close(); //关闭SQL语句对象 
    sqlStmt.close(); //关闭数据库 
    sqlCon.close();
      

  2.   

    关注,与JAVABEAN一起用是不是更好些呢?页面代码也不会太长了
      

  3.   

    我开始也是直接在JSP页面上处理。这样速度很慢。
    所以我用了javabean,但是我没法在javabean里面处理所有的分页,只能分开来。我的解决办法是这样的。
    数据库操作写到javabean里面
    分页处理在JSP页面上
    <html>
    <head>
    <%@page contentType="text/html;charset=gb2312"%>
    <%@page import="java.io.*,javax.servlet.http.*,java.util.*"%>
    <%@page language="Java" import="java.sql.*"%><head>
    <title>&ordm;&Aring;&Ocirc;&acute;&sup2;é&Ntilde;&macr;&frac12;á&sup1;&ucirc;</title>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <link rel="stylesheet" href="style.css" type="text/css">
    <script language="javascript">
    <!---->
    </script>
    </head>
    <body text="#000000" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"  bgcolor="#FFFFFF" vlink="#FFFFFF"><jsp:include page="menu.jsp" flush="true"/><table width="100%" border="0" cellspacing="0" cellpadding="0" height="5%">
      <tr>
        <td height="374" valign="top" >
          <table width="98%" border="0" cellspacing="0" cellpadding="0">
            <tr align="left" valign="top">
              <td height="366"  colspan="2">
                <table width="91%" border="0" cellspacing="0" cellpadding="0" height="100" >              <tr>
                    <td align="left" valign="top" height="273" colspan="3">
                      <table width="750" border="1" cellspacing="0" cellpadding="0" class="command">
                        <tr>
                          <td width="50" class="title" >&ordm;&Aring;&Acirc;&euml;</td>
                          <td class="title" width="50" >&acute;ú&Agrave;í&Eacute;&Igrave;</td>
                          <td class="title" width="50" >&ordm;&Aring;&Acirc;&euml;×&acute;&Igrave;&not;</td>
                          <td class="title" width="50" >&acute;&acute;&frac12;¨&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >&iquest;&ordf;&Ecirc;&frac14;&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >&frac12;á&Ecirc;&oslash;&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >&Iuml;&Acirc;·&cent;&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >&frac14;¤&raquo;&icirc;&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >±&pound;&Aacute;&ocirc;&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >&raquo;&Oslash;&Ecirc;&Otilde;&Egrave;&Otilde;&AElig;&Uacute;</td>
                          <td class="title" width="50" >&Ouml;±&Iuml;ú×é</td>
                          <td class="title" width="50" >&Ntilde;&iexcl;&ordm;&Aring;·&Ntilde;</td>
                        </tr><%
     Sales.ExeSQL ExeSQL=new Sales.ExeSQL();  
       
    try {
    //·&Ouml;&Ograve;&sup3;&acute;&brvbar;&Agrave;í
    int i;
    int ipage=10; //·&Ouml;&Ograve;&sup3;&micro;&yen;&Icirc;&raquo;
    int allpage; //×&Uuml;&Ograve;&sup3;&Ecirc;&yacute;
    int pages; //&frac12;&Oacute;&Ecirc;&Uuml;&micro;&Auml;&Ograve;&sup3;&Acirc;&euml;±&auml;&Aacute;&iquest;
    int cpage=1; //&micro;±&Ccedil;°&Ograve;&sup3;
    int spage; //&iquest;&ordf;&Ecirc;&frac14;&Ograve;&sup3;
    int intStatus=0;
    int allCol=0;
    String strSel="";
    String FromNum="";
    String ToNum="";
    String strTest="";strSel=(String) request.getParameter("strPrice");if ((request.getParameter("pages")==null)||(request.getParameter("pages")=="")){
       FromNum=(String) request.getParameter("FromNum");
       ToNum=(String) request.getParameter("ToNum");
       session.setAttribute("FromNum",FromNum);
       session.setAttribute("ToNum",ToNum);
    } else{
    FromNum= (String) session.getAttribute("FromNum");
          ToNum= (String) session.getAttribute("ToNum");
    }
    //取得记录总数   
       allCol=ExeSQL.getMobileCount(FromNum,ToNum);
     
    //总页面数
    allpage = (int)Math.ceil((allCol + ipage-1) / ipage);//判断参数pages是否为空
    if (request.getParameter("pages")==null) {
    pages=1;
    } else {
    pages = new Integer(request.getParameter("pages")).intValue();}//判断当前页
    if(pages > allpage ||pages == 0){
    cpage = 1;
    } else {
    cpage = pages;
    }//&Aring;&ETH;&para;&Iuml;&AElig;&eth;&Ecirc;&frac14;&Ograve;&sup3;
    spage=(cpage-1)*ipage;    ResultSet rs=ExeSQL.getMobileCode(FromNum,ToNum);
        int cu=1;
        int begin_page=ipage*(cpage-1);
    int end_page=begin_page+ipage;
            int j=0;
    //循环取记录
    while (rs.next())
    { j++; if (j<=begin_page) continue;
    if (j>end_page) break;

    %>
                         <tr>
                          <td width="50" class="show" ><%out.print(rs.getString("NUM_NO"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("agent_name")); %></td>
                          <td class="show width="50" ><%out.print(rs.getString("STATUS"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("BUILD_DATE"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("START_DATE"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("END_DATE"));%>;</td>
                          <td class="show" width="50" ><%out.print(rs.getString("ASSIGN_DATE"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("ACTIVE_DATE"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("HOLD_DATE"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("RECYLE_DATE"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("group_name"));%></td>
                          <td class="show" width="50" ><%out.print(rs.getString("NUM_FARE"));%></td>
                            </tr>
                   <% 
    cu++;

    %>
    </table>
    <table> 
    <tr bgcolor="#CCCCCC">
    <td align="right" valign="middle" >
    &sup1;&sup2; <%= allCol %>&Igrave;&otilde;&frac14;&Ccedil;&Acirc;&frac14; &sup1;&sup2; <%= allpage %>&Ograve;&sup3;
    <% if (cpage>1) { %><a href="J_QueryCode_Result.jsp?pages=<%= cpage-1 %>&&strPrice=<%=strSel%>">&Ccedil;°&Ograve;&raquo;&Ograve;&sup3;</a><% } if (cpage<allpage) { %><a href="J_QueryCode_Result.jsp?pages=<%= cpage+1 %>&&strPrice=<%=strSel%>">&Iuml;&Acirc;&Ograve;&raquo;&Ograve;&sup3;</a><% } %> / <% for (i=1;i<=allpage;i++) { if (i != pages) {%><a href="J_QueryCode_Result.jsp?pages=<%= i %>&&strPrice=<%=strSel%>"><%= i %></a>&nbsp;<% } }%></td>
    </tr> <tr>
                            <td class="show"><br>
                              <div align="center">
             <p><a href=J_QueryCode.jsp>&Ouml;&Oslash;&ETH;&Acirc;&sup2;é&Ntilde;&macr;</a>&nbsp;&nbsp;&nbsp;&nbsp;
      </p></div>
                            </td>
                          </tr>                  </table>                </td>
                  </tr>
                  <tr>
                    <td align="center" height="90" colspan="3" bgcolor="#dadada" valign="top">
                      <hr>
                      <!-- #BeginLibraryItem "/Library/di.lbi" -->
    <table width="100%" border="0" cellspacing="0" cellpadding="4" bgcolor="#EAEAEA">
      <tr>
                          <td>
                            <div align="center" class="text2">
            <p>°&aelig;&Egrave;¨&Euml;ù&Oacute;&ETH;&pound;&ordm;&iquest;&AElig;&Ntilde;&para;&Ecirc;&yacute;&Acirc;&euml;<font size="2"><br>
              </font>&ordm;&Iuml;×÷&Oacute;&euml;&frac12;¨&Ograve;é&pound;&ordm; <a href="mailto:[email protected]"> [email protected]</a><br>
              &Ograve;&micro;&Icirc;&ntilde;&Aacute;&ordf;&Iuml;&micro;&pound;&ordm;&pound;¨+86755&pound;&copy; 6733888</p>
            </div>
                          </td>
                        </tr>
                      </table><!-- #EndLibraryItem --> </td>
                  </tr>
                </table>
            </tr>
          </table>
        </td>
      </tr>
    </table><%
    //&sup1;&Oslash;±&Otilde;&frac12;á&sup1;&ucirc;&frac14;&macr;
    rs.close();}
    catch(Exception e) {
    e.printStackTrace();
    }
    finally{
       
    }