Oracle & JSP 开发的小型信息管理系统 (二) 源代码1-JSP教程,Java技巧及代码-IDC资讯中心

**************************************//index .jsp 默认登录,查看信息页面

<%@ include file="articleconn1.jsp"%><%

%><html><head>

<title>信息查詢系統</title>

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>

<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pageint 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;}

string sqlname="select count(article_id) from learning ";

//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;

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    共<%=intpagecount%>頁    <%if(intpage<intpagecount){%> <a href="index.jsp?page=<%=intpage+1%>">下一頁</a>    <%}%> <%if(intpage>1){%> <a href="index.jsp?page=<%=intpage-1%>">上一頁</a>        <%}%> </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    共<%=intpagecount%>頁    <%if(intpage<intpagecount){%> <a href="index.jsp?page=<%=intpage+1%>">下一頁</a>    <%}%> <%if(intpage>1){%> <a href="index.jsp?page=<%=intpage-1%>">上一頁</a>        <%}%> <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")){ %>    <a href="manage.jsp">系統管理</a><%} else{%>    <a href="login.jsp">登錄系統管理</a><%}%> </div> </div> </div> </td> </tr> </table> </td> </tr></table><%rs.close();

****************************************//login.jsp 登录页面

<%@ page contenttype="text/html;charset=big5"%> <head><meta http-equiv="content-type" content="text/html; charset=big5"><title>信息查詢系統</title><meta name="generator" content="microsoft frontpage 4.0"><link rel="stylesheet" href="css/style.css"></head> <body bgcolor="#ffffff"><div align="center"><br> <font color="#000000">管理系統</font> <br></div> <form method="post" action="chklogin.jsp"> <div align="center"> <p> 用戶名稱 <input class=textborder maxlength=25 name=username size=13 value=""> </p> <p> 管理密碼 <input class=textborder maxlength=25 name=password size=13 type="password" value=""> </p> <p> <input type="submit" value="确定" name="cmdok" class="buttonface">   <input type="reset" value="重填" name="cmdreset" class="buttonface">   </p> </div></form><div align="center"> <p> </p> <p> </p> <p> </p> <p> </p></div></body>

************************//chklogin验证登录页面,如果正确,sendredirect 到manage.jsp

<%@ page contenttype="text/html;charset=gb2312"%><%@ page import="java.sql.*"%><html> <head> <meta http-equiv="content-type" content="text/html; charset=big5"> <title>chklogin</title> </head> <%!string username, password, adminvalue;%> <% adminvalue="admin"; request.setcharacterencoding("big5"); username=request.getparameter("username").trim(); password=request.getparameter("password").trim(); if(username==null) {response.sendredirect("index.jsp");} if(password==null) {response.sendredirect("index.jsp");} if(username.equals(adminvalue)&&password.equals(adminvalue)) { /*cookie theadminok=new cookie("adminok", "true"); response.addcookie(theadminok); response.sendredirect("manage.jsp");*/ httpsession se=request.getsession(); se.setattribute("admin",username); response.sendredirect("manage.jsp"); } else{response.sendredirect("index.jsp");} %> <body> </body></html>

Oracle & JSP 开发的小型信息管理系统 (二) 源代码1-JSP教程,Java技巧及代码

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