Oracle & JSP 开发的小型信息管理系统 (七) 源代码5

类别:Java 点击:0 评论:0 推荐:

//index.jsp 改进了的实现分类查询的默认页面

<%@ page contentType="text/html;charset=big5"%>
<%@ include file="articleconn1.jsp"%>
<%

String types=request.getParameter("types");
if(types==null)
types="null";

String query=null;
String sqlname=null;
 %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=big5">
<title>信息查詢系統</title>

<script>
 

function openwin(id){  window.open("view.jsp?id="+id,"","height=450,width=550,resizable=yes,scrollbars=yes,status=no,toolbar=no,menubar=no,location=no");}

</script>
<link rel="stylesheet" href="css/style.css">
</head>

<body bgcolor="#FFFFFF" topmargin="0" leftmargin="0" marginwidth="0" marginheight="0">
<table width="609" border="0" cellspacing="0" cellpadding="0" align="center">
  <tr>
    <td>
      <div align="center"><img src="images/TITLE.jpg" width="587" height="174"></div>
    </td>
  </tr>
</table>

<center>
分類查看信息:
<a href="index.jsp?types=mp3">>>mp3</a>&nbsp;
<a href="index.jsp?types=notebook">>>notebook</a>&nbsp;
<a href="index.jsp?types=pc">>>computer</a>&nbsp;
<a href="index.jsp?types=mobile phone">>>mobile phone</a>&nbsp;</center>
<div align="center"></div>
<table width="607" cellpadding="0" cellspacing="0" align="center">
  <tr>
    <td colspan="3" height="117">
      <table border="1" width="100%" bordercolorlight="#000000" bordercolordark="#FFFFFF" cellpadding="0" cellspacing="0" align="center">
        <tr>
          <td height="16" bgcolor="#B5D85E" width="81%">
            <div align="center">
   

              <p><font color="#000000"><strong>信 息 列 表</strong></font>
              </p>
            </div>
          </td>
        </tr>
        <tr>
          <td width="81%" align="center" valign="top" height="139">
            <div align="center">

              <div align="center">
                <div align="center"><br>
                  <br>
                  <div align="center">
                    <p align="left">
                      <%
int intPageSize;
int intRowCount;//記錄總數
int intPageCount;//總頁數
int intPage;//頁面參數
String strPage;//定義變數用來傳遞page
int i,j;
intPageSize=5;//定義每頁顯示5條記錄
strPage=request.getParameter("page");//取得當前的頁碼
if(strPage==null){//判斷初始頁面,如果沒有顯示記錄,就置為第一頁
intPage=1;
}else{
intPage=Integer.parseInt(strPage);//將strPage轉化為整數
if(intPage<1) intPage=1;
}

if(types.equals("null"))
{sqlname=" select count(article_id) from learning ";}
else
{sqlname=" select count(article_id) from learning where types='"+types+"' "; }


 //sqlname="select count(article_id) from learning where title like '%"+keyword+"%'  and types like '%"+typename+"%' order by article_id desc";

PreparedStatement ps=conn.prepareStatement(sqlname);
ResultSet rs1=ps.executeQuery();
rs1.next();
intRowCount=rs1.getInt(1);//取得整數保存與intRowCount變數中
intPageCount=(intRowCount+intPageSize-1)/intPageSize;//計算出總頁數(記錄總數+每頁顯示的記錄-1)/每頁顯示的記錄)
if(intPage>intPageCount)
intPage=intPageCount;


if(types.equals("null"))
{query=" select * from learning order by article_id ";}
else
{query=" select * from learning where types='"+types+"' order by article_id "; }

ps=conn.prepareStatement(query);
//String query=" select * from learning order by article_id ";


ResultSet rs=ps.executeQuery(query);//執行sql,按照時間先後排序顯示
i=(intPage-1)*intPageSize;
for(j=0;j<i;j++)
rs.next();
%>
<%-- 設置intPage參數 --%>
   <FORM action=index.jsp method=POST>
<p align='center' vAlign='bottom'>
    第<%=intPage%>頁 &nbsp;&nbsp;&nbsp;共<%=intPageCount%>頁&nbsp;&nbsp;&nbsp;
  
    <%if(intPage>1){%>
    <a href="index.jsp?page=<%=intPage-1%>&types=<%=types%>">上一頁</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
    <%}%>
        <%if(intPage<intPageCount){%>
    <a href="index.jsp?page=<%=intPage+1%>&types=<%=types%>">下一頁</a>&nbsp;&nbsp;&nbsp;
    <%}%>
     </form>
                     
                  </div>
                  <div align="center">
                    <center>
                      <table border="1" cellspacing="0" width="90%"
    bgcolor="#F0F8FF" bordercolorlight="#000000" bordercolordark="#FFFFFF" background="../images/top-linebg.gif">
                        <tr>
                          <td width="15%" align="center" height="20" bgcolor="#B5D85E"><font color="#000000">ID
                            號 </font></td>
                          <td width="45%" align="center" bgcolor="#B5D85E"><font color="#000000">信
                            息 名 稱</font></td>
                          <td width="26%" align="center" bgcolor="#B5D85E"><font color="#000000">上
                            載 時 間</font></td>
                          <td width="15%" align="center" bgcolor="#B5D85E"><font color="#000000">點
                            擊</font></td>
                        </tr>
                          <%if(intRowCount==0){%>
    對不起,還沒有資料!
    <%}else{%>
  <%-- 顯示每頁的資料 (根據i的值判斷每頁的5條記錄) --%>
 <%
  i=0;
  while(i<intPageSize && rs.next()){
 %>
                        <tr>
                          <td width="15%" height="23" bgcolor="#FFFFFF">
                            <p align="center"><%=rs.getString("article_id")%>
                          </td>
                          <td width="45%" bgcolor="#FFFFFF">
                             <a href="javascript:openwin(<%=rs.getString("article_id")%>)" title="<%=rs.getString("title")%>"><%=rs.getString("title")%></a>
                                               
                          </td>
                          <td width="26%" bgcolor="#FFFFFF">
                            <div align="center"><%=rs.getString("date_and_time")%></div>
                          </td>
                          <td width="15%" bgcolor="#FFFFFF">
                            <p align="center"><%=rs.getString("hits")%>
                          </td>
                        </tr>
          <%
   i++;//通過I迴圈設置每頁的頁數
    }
 %>
  
   
  <%}%>
                      </table>
                    </center>
                  </div>
               <FORM action=index.jsp method=POST>
<p align='center' vAlign='bottom'>
    第<%=intPage%>頁 &nbsp;&nbsp;&nbsp;共<%=intPageCount%>頁&nbsp;&nbsp;&nbsp;
   
    <%if(intPage>1){%>
    <a href="index.jsp?page=<%=intPage-1%>&types=<%=types%>">上一頁</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
    <%}%>
        <%if(intPage<intPageCount){%>
    <a href="index.jsp?page=<%=intPage+1%>&types=<%=types%>">下一頁</a>&nbsp;&nbsp;&nbsp;
    <%}%>
        <br>到第<input type="text" name="page" size="5" value="1"/>頁
        <input type="submit" value="確定" class="buttonface">
     </form>
         <%
     
         String userName=(String)session.getAttribute("admin");
         if(userName==null){userName="";}
         if(userName.equals("admin")){
        
         %>
         &nbsp; &nbsp;<a href="manage.jsp">系統管理</a><%}
         else{%>
         &nbsp; &nbsp;<a href="login.jsp">登錄系統管理</a><%}%>
        
                </div>
              </div>
            </div>
          </td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<%rs.close();

conn.close();
%>
<p align="center">Copyright &copy;moonsoft 2004</p>
</body>
</html>

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