//articleconn.jsp 数据库连接文件,几乎被每个页面包含,有的页面去掉获得Session,修改一下这个代码,很简单 <%@ page contentType="text/html;charset=big5"%> <%@ page import="java.sql.*"%>   <%          request.setCharacterEncoding("big5");   Connection conn=null;   Statement stmt=null;   try{   Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();   String url="jdbc:oracle:thin:@192.168.56.199:1521:asdb";   String user="system";   String password="oracle01";   conn=DriverManager.getConnection(url, user, password);   }   catch(Exception e1){   e1.printStackTrace();}      %>
  //************************************manage.jsp管理页面,提供分页,修改,删除,添加的链接 <%/*Cookie cookies[]=request.getCookies(); if(cookies==null) { response.sendRedirect("login.jsp"); } String userName=(String)session.getAttribute("admin"); out.println("Welcome, "+userName); if(userName==null) {response.sendRedirect("login.jsp");}*/ %> <%@ include file="articleconn.jsp"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=big5"> <title>管理文件</title> <meta name="GENERATOR" content="Microsoft FrontPage 4.0"> <link rel="stylesheet" href="css/style.css"> </head> <% request.setCharacterEncoding("big5"); String query=" Select * "+              " from learning order by article_id "; String title=null;              String queryCount=" select count(*)from learning  "; String strPage=request.getParameter("strPage"); int intPage; if(strPage==null){ intPage=1;} else {intPage=Integer.parseInt(strPage);} int pageSizes=10;//每頁顯示信息數目 int counts=1;//信息總條數 int pageCounts=1;//總頁數 try{ PreparedStatement ps=conn.prepareStatement(queryCount); ResultSet rs=ps.executeQuery(); if(rs.next()){ counts=Integer.parseInt(rs.getString(1));} %> <body bgcolor="#FFFFFF">           <br>  <p align="left">    <a href="add.jsp">添加信息</a>            <a href="index.jsp">返回首頁</a>         </p>           <p> </p>   <table width="700" border="1" cellspacing="0" cellpadding="0" align="center" bordercolorlight="#000000" bordercolordark="#FFFFFF">     <tr bgcolor="#99CCFF">       <td height="10" bgcolor="#B5D85E">         <div align="center">           <b>管 理 界 面</b>         </div>       </td>     </tr>     <tr>       <td height="49">         <%-- 分頁 --%>            <table border="1" cellspacing="0" width="90%" bgcolor="#F0F8FF" bordercolorlight="#000000" bordercolordark="#FFFFFF" align="center">           <tr>             <td width="12%" align="center">               <strong>ID 號</strong>             </td>             <td width="13%" align="center">               <b>類 型</b>             </td>             <td width="47%" align="center">               <strong>信 息 名 稱</strong>             </td>             <td width="14%" align="center">               <strong>修 改</strong>             </td>             <td width="14%" align="center">               <strong>刪 除</strong>             </td>           </tr>           <%  //計算總頁數 if(counts%pageSizes==0){pageCounts=counts/pageSizes;} else{pageCounts=counts/pageSizes+1;} if(intPage>pageCounts) {intPage=pageCounts;} int i=(intPage-1)*pageSizes;  ps=conn.prepareStatement(query); ResultSet rs1=ps.executeQuery(); /*while(rs1.next()) {String temp=rs1.getString("title"); out.println(temp);}*/ if(counts!=1){ for( int  j=0; j<i ; j++) rs1.next();} //out.println(rs1+"<BR><BR><BR> ");
   
   i=0; while(rs1.next()&&i<pageSizes){  if(counts==0)  {out.println("<font size=4 color=red>沒有您想看的數據!</font>");} %>           <tr>             <td width="12%" height="7">               <p align="center">                 <%= rs1.getString("article_id")%>               </p>             </td>             <td width="13%" height="7">               <div align="center">                 <%= rs1.getString("types")%>               </div>             </td>             <td width="47%" height="7">               <%title= rs1.getString("title");               out.println(title);               %>             </td>             <td width="14%" align="center" height="7">               <a href="edit.jsp?id=<%=rs1.getInt("article_id")%>">修 改</a>             </td>             <td width="14%" align="center" height="7">               <a href="delete.jsp?id=<%=rs1.getInt("article_id")%>&title=<%=title%>">刪 除</a>             </td>           </tr>           <% i++;}%>         </table>         <%  } catch(SQLException se1){se1.printStackTrace();} finally{}  conn.close();  %>       </td>     </tr>
   </table>      <form action="manage.jsp" method="post" > 第<%=intPage%>頁,共<%=pageCounts%>頁 <% if(intPage<pageCounts){ %><a href="manage.jsp?strPage=<%=intPage+1%>">下一頁</a> <%}if(intPage>1){%>   <a href="manage.jsp?strPage=<%=intPage-1%>">上一頁</a><%}%> <br>到第<input type="text" maxlength="5" name="strPage" value="1"/>頁進行查看 <input type="submit" value="確認" class="buttonface"/> </form>          <br>  <p align="left">    <a href="add.jsp">添加信息</a>            <a href="index.jsp">返回首頁</a>         </p>   <P> </P> </body> </html>
  //******************************************FilterSpecial .java过滤用户输入 package moonsoft.test.j2ee.news; public class FilterSpecial  {   public FilterSpecial()     {   }   public static String filter(String input)   {     if(!hasSpecialChars(input))     {      return input;     }     StringBuffer filtered =new StringBuffer(input.length());     char c;     for(int i=0; i<=input.length()-1; i++)     {     c=input.charAt(i);     switch(c)     {       case '<':filtered.append("<"); break;       case '>':filtered.append(">"); break;       case '"':filtered.append("&uot;"); break;       case '&':filtered.append("&"); break;       default: filtered.append(c);     }            }     return (filtered.toString());   }   public static boolean hasSpecialChars(String input)   {     boolean flag=false;     if((input!=null)&&(input.length()>0))     {       char c;       for(int i=0; i<=input.length()-1; i++)       {         c=input.charAt(i);               switch(c)         {           case '>': flag=true; break;           case '<': flag=true; break;           case '"': flag=true; break;           case '&': flag=true; break;         }       }     }     return flag;   } }  
 
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