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JSP与SQL SERVER的留言本-JSP教程,Jsp/Servlet

2006-07-15 分类：JSP教程 阅读(476) 评论(0)
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<!–add_message.jsp–>

<%@ page import="java.sql.*" %>

<html>

<head>

<title>add message into table </title>

</head>

<body>

<%

string name=request.getparameter("name");

string mail=request.getparameter("mail");

string title=request.getparameter("title");

string content=request.getparameter("content");

if(name==null)

name="";

if(title==null)

title="";

if(content==null)

content="";

if(mail==null)

mail="";

if(name.length()==0)

out.println("留言人姓名不能为空！");

else if(title.length()==0)

out.println("留言主题不能为空！");

else if(content.length()==0)

out.println("留言内容不能为空！");

else

{

java.util.date date=new java.util.date();

string datetime=new timestamp(date.gettime()).tostring();

try

{

class.forname("sun.jdbc.odbc.jdbcodbcdriver");

string url="jdbc:odbc:user_db";

connection con=drivermanager.getconnection(url,"insher","insher");

preparedstatement stm=con.preparestatement("insert into message values(?,?,?,?,?)");

stm.setstring(1,title);

stm.setstring(2,name);

if(mail.length()==0)

stm.setstring(3,null);

else stm.setstring(3,mail);

stm.setstring(4,datetime);

stm.setstring(5,content);

try

{

stm.executequery();

} catch(exception e)

{}

con.close();

}

catch (exception e)

{}

%>

<jsp:forward page="view_message.jsp" />

<%

}

%>

</body>

</html>

<!–add_message.jsp–

<%@ page import="java.sql.*" %>

<html>

<head>

<title>add message into table </title>

</head>

<body>

<%

string name=request.getparameter("name");

string mail=request.getparameter("mail");

string title=request.getparameter("title");

string content=request.getparameter("content");

if(name==null)

name="";

if(title==null)

title="";

if(content==null)

content="";

if(mail==null)

mail="";

if(name.length()==0)

out.println("留言人姓名不能为空！");

else if(title.length()==0)

out.println("留言主题不能为空！");

else if(content.length()==0)

out.println("留言内容不能为空！");

else

{

java.util.date date=new java.util.date();

string datetime=new timestamp(date.gettime()).tostring();

try

{

class.forname("sun.jdbc.odbc.jdbcodbcdriver");

string url="jdbc:odbc:user_db";

connection con=drivermanager.getconnection(url,"insher","insher");

preparedstatement stm=con.preparestatement("insert into message values(?,?,?,?,?)");

stm.setstring(1,title);

stm.setstring(2,name);

if(mail.length()==0)

stm.setstring(3,null);

else stm.setstring(3,mail);

stm.setstring(4,datetime);

stm.setstring(5,content);

try

{

stm.executequery();

} catch(exception e)

{}

con.close();

}

catch (exception e)

{}

%>

<jsp:forward page="view_message.jsp" />

<%

}

%>

</body>

</html>

<!– index.html –>

<html>

<head>

<title> message board </title>

</head>

<body>

<table width="90%" align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">

<tr>

<td align="center" bgcolor="#88a6dd">访客留言板</td>

</tr>

<tr>

<td><table align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">

<form action="add_message.jsp">

<tr>

<td>姓名：</td>

<td bgcolor="#88a6dd"><input type="text" name="name" size=25></td>

</tr>

<tr>

<td bgcolor="#88a6dd">e-mail：</td>

<td bgcolor="#88a6dd"><input type="text" name="mail" size=25></td>

</tr>

<tr>

<td>主题：</td>

<td bgcolor="#88a6dd"><input type="text" name="title" size=25></td>

</tr>

<tr>

<td valign="top" bgcolor="#88a6dd">留言：</td>

<td><textarea name="content" rows=7 cols=25></textarea></td>

</tr>

<tr>

<td colspan=3><table align="center" width="100%" cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">

<tr>

<td align="center" bgcolor="#88a6dd"><input type="submit" value="提交留言"></td>

<td align="center"><a href="view_message.jsp"><font size=2>查看留言</font></a></td>

<td align="center" bgcolor="#88a6dd"><input type="reset" value="重新填写"></td>

</tr>

</table></td>

</tr>

</form>

</table></td>

</tr>

</table>

</body>

</html>

<html>

<head>

<title> message board </title>

</head>

<body>

<table width="60%" align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">

<tr>

<td align="center" bgcolor="#88a6dd">访客留言板</td>

</tr>

<tr>

<td><table align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">

<form action="add_message.jsp">

<tr>

<td>姓名：</td>

<td bgcolor="#88a6dd"><input type="text" name="name" size=25></td>

</tr>

<tr>

<td bgcolor="#88a6dd">e-mail：</td>

<td bgcolor="#88a6dd"><input type="text" name="mail" size=25></td>

</tr>

<tr>

<td>主题：</td>

<td bgcolor="#88a6dd"><input type="text" name="title" size=25></td>

</tr>

<tr>

<td valign="top" bgcolor="#88a6dd">留言：</td>

<td><textarea name="content" rows=7 cols=25></textarea></td>

</tr>

<tr>

<td colspan=3><table align="center" width="100%" cellspacing="0" cellpadding="0" bordercolordark="#88a6dd" bordercolorlight="#88a6dd">

<tr>

<td align="center" bgcolor="#88a6dd"><input type="submit" value="提交留言"></td>

<td align="center"><a href="view_message.jsp"><font size=2>查看留言</font></a></td>

<td align="center" bgcolor="#88a6dd"><input type="reset" value="重新填写"></td>

</tr>

</table></td>

</tr>

</form>

</table></td>

</tr>

</table>

</body>

</html>

<!–view_message.jsp–>

<%@ page import="java.sql.*" %>

<html>

<head>

<title> show the message in the table </title>

</head>

<body>

<p align="center">所有访客留言</p>

<hr>

<%

try

{

class.forname("sun.jdbc.odbc.jdbcodbcdriver");

string url="jdbc:odbc:user_db";

connection con=drivermanager.getconnection(url,"insher","insher");

statement stm=con.createstatement();

resultset result=stm.executequery("select count(*) from message");

int message_count=0;

if(result.next())

{

message_count=result.getint(1);

result.close();

}

if(message_count>0)

{

result=stm.executequery("select * from message order by time desc");

while(result.next())

{

string title=result.getstring("title");

string name=result.getstring("name");

string mail=result.getstring("mail");

timestamp time=result.gettimestamp("time");

date date_time=new date(time.gettime());

time time_time=new time(time.gettime());

string content=result.getstring("content");

%>

<table width="100%" align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#000000" bordercolorlight="#88a6dd">

<tr><td bgcolor="#88a6dd"><font size=2>主题：</font></td>

<td colspan=3><%=title%></td></tr>

<tr><td bgcolor="#88a6dd"><font size=2>留言人：</font></td>

<td><%=name%></td><td bgcolor="#88a6dd"><font size=2>e-mail：</font></td>

<td>

<%

out.println("<a href=mailto:"+mail+">"+mail+"</a>");

%>

</td></tr>

<tr><td bgcolor="#88a6dd"><font size=2>留言时间：</font></td><td colspan=3>

<%

out.println("<font size=2>"+date_time+" "+time_time+"</font>");

%>

</td></tr>

<tr><td align="center">

<%

out.println("("+message_count+")");

%>

</td>

<td colspan=3><%=content%>

</td></tr>

</table>

<%

out.println("<hr>");

message_count–;

}

result.close();

con.close();

}

else

{

out.println("目前还没有任何留言！");

con.close();

}

} catch(exception e)

{out.println(e);}

%>

<p align="center"><a href="../message/index.html">我要留言</a></p>

</body>

</html>

<!–view_message.jsp–>

<%@ page import="java.sql.*" %>

<html>

<head>

<title> show the message in the table </title>

</head>

<body>

<p align="center">所有访客留言</p>

<hr>

<%

try

{

class.forname("sun.jdbc.odbc.jdbcodbcdriver");

string url="jdbc:odbc:user_db";

connection con=drivermanager.getconnection(url,"insher","insher");

statement stm=con.createstatement();

resultset result=stm.executequery("select count(*) from message");

int message_count=0;

if(result.next())

{

message_count=result.getint(1);

result.close();

}

if(message_count>0)

{

result=stm.executequery("select * from message order by time desc");

while(result.next())

{

string title=result.getstring("title");

string name=result.getstring("name");

string mail=result.getstring("mail");

timestamp time=result.gettimestamp("time");

date date_time=new date(time.gettime());

time time_time=new time(time.gettime());

string content=result.getstring("content");

%>

<table width="100%" align="center" border=1 cellspacing="0" cellpadding="0" bordercolordark="#000000" bordercolorlight="#88a6dd">

<tr><td bgcolor="#88a6dd"><font size=2>主题：</font></td>

<td colspan=3><%=title%></td></tr>

<tr><td bgcolor="#88a6dd"><font size=2>留言人：</font></td>

<td><%=name%></td><td bgcolor="#88a6dd"><font size=2>e-mail：</font></td>

<td>

<%

out.println("<a href=mailto:"+mail+">"+mail+"</a>");

%>

</td></tr>

<tr><td bgcolor="#88a6dd"><font size=2>留言时间：</font></td><td colspan=3>

<%

out.println("<font size=2>"+date_time+time_time+"</font>");

%>

</td></tr>

<tr><td align="center">

<%

out.println("("+message_count+")");

%>

</td>

<td colspan=3><%=content%>

</td></tr>

</table>

<%

out.println("<hr>");

message_count–;

}

result.close();

con.close();

}

else

{

out.println("目前还没有任何留言！");

con.close();

}

} catch(exception e)

{out.println(e);}

%>

<p align="center"><a href="../message/index.html">我要留言</a></p>

</body>

</html>

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