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2008-04-28 21:14:31

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package guestbook;import java.sql.*;public class guestbook{  String sDBDriver = "sun.jdbc.odbc.JdbcOdbcDriver";  String sConnStr = "jdbc:odbc:guestbook";  Connection conn = null;  ResultSet rs = null;    public guestbook() {try {      Class.forName(sDBDriver);  }catch(java.lang.ClassNotFoundException e) {System.err.println("guestbook(): " e.getMessage());}  }  public void executeInsert(String sql) {    try {conn = DriverManager.getConnection(sConnStr);         Statement stmt = conn.createStatement();     stmt.executeUpdate(sql);    }     catch(SQLException ex) {   System.err.println("guestbook.executeUpdate: " ex.getMessage());    }  }  public ResultSet executeQuery(String sql) {  rs = null;    try {conn = DriverManager.getConnection(sConnStr);         Statement stmt = conn.createStatement();     rs = stmt.executeQuery(sql);    }     catch(SQLException ex) {   System.err.println("guestbook.executeQuery: " ex.getMessage());    }    return rs;  }}<html><head><title>My First Jsp GuestBook</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body bgcolor="#CCCCFF" vlink="#000000" alink="#666666"><div align="center"> <p><font size="7"><b><font size=" 6">Jsp GuestBook</font></b></font></p> <form method="post" action="index.jsp">  <table width="75%" align="center" border=1>   <tr>    <td width="30%">     <div align="right">Name:</div>    </td>    <td width="70%">     <input type="text" name="name">    </td>   </tr>   <tr>    <td width="30%">     <div align="right">E-mail:</div>    </td>    <td width="70%">     <input type="text" name="email">    </td>   </tr>   <tr>    <td width="30%">     <div align="right">Site Url:</div>    </td>    <td width="70%">     <input type="text" name="url" value="http://">    </td>   </tr>   <tr>    <td width="30%">     <p>What do you want to</p>     <p>say?</p>    </td>    <td width="70%">     <textarea name="body" rows="5" cols="30"></textarea>    </td>   </tr>   <tr>    <td width="30%"> </td>    <td width="70%"> </td>   </tr>   <tr>    <td width="30%"> </td>    <td width="70%">     <table width="75%">      <tr>       <td>        <input type="submit" name="send" value="Send">       </td>       <td>        <input type="reset" name="reset" value="Reset">       </td>      </tr>     </table>    </td>   </tr>  </table> </form> <hr><%@ page language="java" import="java.sql.*" %><jsp:useBean id="sqlbean" scope="page" class="guestbook.guestbook" /><%! String name,email,url,body,sql; %><%if (name!=null&&email!=null&&body!=null) {  name = request.getParameter("name");  email = request.getParameter("email");  url = request.getParameter("url");  body = request.getParameter("body");  sql = "insert into guestbook (Name,Email,Url,Body) values('" name "','" email "','" url "','" body "')";  sqlbean.executeInsert(sql);  }else{  out.print("<b><font color=red>Sorry, Please enter your name,email and body!!!</font></b>"); }%> <p><font size="4"><b><a href="./index.jsp#see">See My Guestbook</a></b></font></p><%-- Because I don't konw a good method to konw the all items count,so.... --%><%// ResultSet RScount = sqlbean.executeQuery("SELECT count(*) FROM guestbook"); ResultSet RScount = sqlbean.executeQuery("SELECT * FROM guestbook"); int i=0; while (RScount.next()) { i ; } %><%-- <p><a name=see><B>Now,<%= RScount %> Records.</B><a></p> --%><p><a name=see><B>Now,<%= i %> Records.</B><a></p> <% RScount.close();i=0; %><p> </p><%   ResultSet RS = sqlbean.executeQuery("SELECT * FROM guestbook ORDER BY RecordID DESC");  while (RS.next()){  name = RS.getString("Name");  email = RS.getString("Email");  url = RS.getString("Url");  body = RS.getString("Body");%><table border=1 width=80%><tr><td width=30%>Name:</td><td width=70%><%= name %></tr><tr><td width=30%>Email:</td><td width=70%><a href="mailto:<%= email %>"><%= email %></a></td></tr><tr><td width=30%>SiteUrl:</td><td width=70%><a href="<%= url %>"><%= url %></a></td></tr><tr><td width=30%>Body:</td><td width=70%><%= body %></td></tr></table><hr><%  }  RS.close();%></div></body></html> package guestbook;import java.sql.*;public class guestbook{  String sDBDriver = "sun.jdbc.odbc.JdbcOdbcDriver";  String sConnStr = "jdbc:odbc:guestbook";  Connection conn = null;  ResultSet rs = null;    public guestbook() {try {      Class.forName(sDBDriver);  }catch(java.lang.ClassNotFoundException e) {System.err.println("guestbook(): " e.getMessage());}  }  public void executeInsert(String sql) {    try {conn = DriverManager.getConnection(sConnStr);         Statement stmt = conn.createStatement();     stmt.executeUpdate(sql);    }     catch(SQLException ex) {   System.err.println("guestbook.executeUpdate: " ex.getMessage());    }  }  public ResultSet executeQuery(String sql) {  rs = null;    try {conn = DriverManager.getConnection(sConnStr);         Statement stmt = conn.createStatement();     rs = stmt.executeQuery(sql);    }     catch(SQLException ex) {   System.err.println("guestbook.executeQuery: " ex.getMessage());    }    return rs;  }}<html><head><title>My First Jsp GuestBook</title><meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head><body bgcolor="#CCCCFF" vlink="#000000" alink="#666666"><div align="center"> <p><font size="7"><b><font size=" 6">Jsp GuestBook</font></b></font></p> <form method="post" action="index.jsp">  <table width="75%" align="center" border=1>   <tr>    <td width="30%">     <div align="right">Name:</div>    </td>    <td width="70%">     <input type="text" name="name">    </td>   </tr>   <tr>    <td width="30%">     <div align="right">E-mail:</div>    </td>    <td width="70%">     <input type="text" name="email">    </td>   </tr>   <tr>    <td width="30%">     <div align="right">Site Url:</div>    </td>    <td width="70%">     <input type="text" name="url" value="http://">    </td>   </tr>   <tr>    <td width="30%">     <p>What do you want to</p>     <p>say?</p>    </td>    <td width="70%">     <textarea name="body" rows="5" cols="30"></textarea>    </td>   </tr>   <tr>    <td width="30%"> </td>    <td width="70%"> </td>   </tr>   <tr>    <td width="30%"> </td>    <td width="70%">     <table width="75%">      <tr>       <td>        <input type="submit" name="send" value="Send">       </td>       <td>        <input type="reset" name="reset" value="Reset">       </td>      </tr>     </table>    </td>   </tr>  </table> </form> <hr><%@ page language="java" import="java.sql.*" %><jsp:useBean id="sqlbean" scope="page" class="guestbook.guestbook" /><%! String name,email,url,body,sql; %><%if (name!=null&&email!=null&&body!=null) {  name = request.getParameter("name");  email = request.getParameter("email");  url = request.getParameter("url");  body = request.getParameter("body");  sql = "insert into guestbook (Name,Email,Url,Body) values('" name "','" email "','" url "','" body "')";  sqlbean.executeInsert(sql);  }else{  out.print("<b><font color=red>Sorry, Please enter your name,email and body!!!</font></b>"); }%> <p><font size="4"><b><a href="./index.jsp#see">See My Guestbook</a></b></font></p><%-- Because I don't konw a good method to konw the all items count,so.... --%><%// ResultSet RScount = sqlbean.executeQuery("SELECT count(*) FROM guestbook"); ResultSet RScount = sqlbean.executeQuery("SELECT * FROM guestbook"); int i=0; while (RScount.next()) { i ; } %><%-- <p><a name=see><B>Now,<%= RScount %> Records.</B><a></p> --%><p><a name=see><B>Now,<%= i %> Records.</B><a></p> <% RScount.close();i=0; %><p> </p><%   ResultSet RS = sqlbean.executeQuery("SELECT * FROM guestbook ORDER BY RecordID DESC");  while (RS.next()){  name = RS.getString("Name");  email = RS.getString("Email");  url = RS.getString("Url");  body = RS.getString("Body");%><table border=1 width=80%><tr><td width=30%>Name:</td><td width=70%><%= name %></tr><tr><td width=30%>Email:</td><td width=70%><a href="mailto:<%= email %>"><%= email %></a></td></tr><tr><td width=30%>SiteUrl:</td><td width=70%><a href="<%= url %>"><%= url %></a></td></tr><tr><td width=30%>Body:</td><td width=70%><%= body %></td></tr></table><hr><%  }  RS.close();%></div></body></html> 下载本文示例代码


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