打印本文 打印本文  关闭窗口 关闭窗口
如何使用JSP+MySQL创建留言本(三)
作者:采集员 文章来源:来源于网络 点击数: 更新时间:2005/9/10 14:28:17
下面我们开始建立留言的页面!
<%@page
import ="java.util.*"
import ="java.text.*"
import="java.sql.*"
import ="java.io.*"
import ="java.lang.*"
contentType="text/html; charset=gb2312"
%>
<%
class CommentError// throws java.lang.NullPointerException
{ public String Username="",Sex="",Address="",Postal="",Oicq="",Icq="",Tel="",Comment="";
public boolean NoError=true;//false;
public int ErrorCount=0;
private boolean IsNumber(String s1) {}
public String font (String se) {}
public String Comment_Er(String se) {}
public void Username (String se) {}
public void Sex (String se) {}
public void Address (String se) {}
public void Comment (String se) {}
public void Tel (String se) {}
public void Postal (String se) {}
public void Oicq (String se) {}
public void Icq (String se) {}
}
class FormatComment
{ public String Replace(String source, String oldString, String newString) {}
public String formatint(String se) {}
public String fromatcomment(String se) {}
public String toHtmlInput(String str) {}
public String toHtml(String str) {}
public String toSql(String str) {}//转换为可以加入Myqal的格式
}

%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>使用MYsql数据库</title>
</head>

<body>

<p align="center"><center><font style="COLOR: blue; FONT-FAMILY: 方正舒体,华文行楷,隶书,宋体; FONT-SIZE: 16pt">萍慧jsp留言薄</font></center></p>
<p align="center">

<%! String username,sex,address,post,oicq,icq,telnumber,comment,email,url.urltitle;
%>
<%
try{ username=request.getParameter("name");
}catch (NullPointerException e){ username="";}
                           
try{ comment=request.getParameter("comment");
}catch (NullPointerException e){ comment="";}
                           
try{ sex=request.getParameter("sex");
}catch (NullPointerException e){ sex="";}
                           
try{ address=request.getParameter("address");
}catch (NullPointerException e){ address="";}
                           
try{ post=request.getParameter("postal");
}catch (NullPointerException e){ post="";}
                           
try{ oicq=request.getParameter("oicq");
}catch (NullPointerException e){ oicq="";}
                           
try{ icq=request.getParameter("icq");
}catch (NullPointerException e){ icq="";}
                           
try{ telnumber=request.getParameter("telphone");
}catch (NullPointerException e) { telnumber= ""; }
try{ email=request.getParameter("email");
}catch (NullPointerException e) { email= ""; }
try{ url=request.getParameter("url");
}catch (NullPointerException e) { url= ""; }
try{ urltitle=request.getParameter("urltitle");
}catch (NullPointerException e) { urltitle= ""; }
                      
String ip=request.getRemoteAddr();//得到IP地址                      
String time=(new SimpleDateFormat ("yyyy-MM-dd hh:mm:ss", Locale.US )).format(new java.util.Date());
String userid="";
String MyQuery="";
此处我调用了一个对留言进行合法检验的类
CommentError testcomment= new CommentError();
testcomment.Username(username);                      
testcomment.Postal (post);                      
testcomment.Sex(sex);
testcomment.Address(address);
testcomment.Tel(telnumber);
testcomment.Comment(comment);     
testcomment.Oicq(oicq);    
testcomment.Icq(icq);

if (testcomment.NoError) //留言中没有错误,写数据库                      
try {//写数据库成功                      
  java.sql.Connection sqlConn; //数据库连接对象
  java.sql.Statement sqlStmt; //语句对象
  java.sql.ResultSet sqlRst; //结果集对象
  //登记JDBC驱动对象
  Class.forName ("org.gjt.mm.mysql.Driver").newInstance ();
  //连接数据库
  sqlConn= java.sql.DriverManager.getConnection ("jdbc:mysql://localhost/pinghui","test","");
  //创建语句对象
  sqlStmt=sqlConn.createStatement (java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);
  //执行Sql语句
此处调用了一个对留言进行处理的类,是留言能被Mysql承认,
  FormatComment FC= new FormatComment();                      
  oicq=FC.formatint(oicq);                      
  icq=FC.formatint(icq);                      
  post=FC.formatint(post);                      
  telnumber=FC.formatint(telnumber);         
  username=FC.toSql(username);         
  comment=FC.toSql(comment);         
  MyQuery="insert into comment (username,sex,address,ip,post,oicq,icq,telnumber,comment,time,url,email) values ('"+username+"','"+sex+"','"+address+"','"+ip+"',"+post+","+oicq+","+icq+",'"+telnumber+"','"+comment+"',now(),'"+url+"','"+email+"');";
  sqlRst=sqlStmt.executeQuery (MyQuery); //向数据库中加入数据
   sqlRst.close();//关闭结果集对象
  sqlStmt.close ();//关闭语句对象
  sqlConn.close(); //关闭数据库连接
  out.print (time);
                       
%>
<font size="5" face="华文行楷">留言成功,谢谢!</font>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tbody>
  <tr>
   <td width="25%">昵称:<%=username%></td>
   <td width="25%">性别:<%=sex%></td>
   <td colspan="2" width="50%">地址:<%=address %></td>
  </tr>
  <tr>
   <td width="25%">电话:<%=telnumber%></td>
   <td width="25%">邮编:<%=post%></td>
   <td width="25%">OICQ:<%=oicq%></td>
   <td width="25%">ICQ:<%=icq%></td>
  </tr>
  <tr>
   <td colspan="2" width="50%">Email:<a href="mailto:" title="写信给留言者"></a></td>
   <td colspan="2" width="50%">网址:<a href target="_blank"></a></td>
  </tr>
  <tr>
   <td colspan="4"><font style="COLOR: green; LINE-HEIGHT: 150%">留言:</font><%=comment%><font style="COLOR: green; LINE-HEIGHT: 15

[1] [2]  下一页



打印本文 打印本文  关闭窗口 关闭窗口