Oracle & JSP 开发的小型信息管理系统 (三) 源代码2
类别: JAVA教程 
//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??锢示信息?的块nt counts=1;//信息???l?甸nt pageCounts=1;//?????导BR>
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??</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?? --%> <table border="1" cellspacing="0" width="90%" bgcolor="#F0F8FF" bordercolorlight="#000000" bordercolordark="#FFFFFF" align="center"> <tr> <td width="12%" align="center"> <strong>ID ??</strong> </td> <td width="13%" align="center"> <b>?? 型</b> </td> <td width="47%" align="center"> <strong>信 息 名 费</strong> </td> <td width="14%" align="center"> <strong>修 改</strong> </td> <td width="14%" align="center"> <strong>?h 除</strong> </td> </tr> <%
//??算?????甸f(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>?]有您想看的????!</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%>">?h 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%>??,共<%=pageCounts%>??
<%if(intPage<pageCounts){%><a href="manage.jsp?strPage=<%=intPage+1%>">下一??</a><%}if(intPage>1){%> <a href="manage.jsp?strPage=<%=intPage-1%>">上一??</a><%}%><br>到第<input type="text" maxlength="5" name="strPage" value="1"/>??咄行查看<input type="submit" value="催帐" class="buttonface"/>
</form>
<br> <p align="left"> <a href="add.jsp">添加信息</a> <a href="index.jsp">返回首??</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; }}
