用JSP编写通用信息发布程序
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2024-02-24 20:20:52
信息发布界面 提供发布信息的交互界面，调用 recordmessage.jsp程序。 saymessage.jsp
信息发布界面
提供发布信息的交互界面，调用 recordmessage.jsp程序。
saymessage.jsp
<html> <head> <title> 信息发布</title>
<meta content = "text/html; charset=gb2312" http-equiv = content-type>
<link href ="css_01.css" rel = stylesheet>
<meta content = "mshtml 5.00.3103.1000" name =generator> </head>
<body>
<％ @ page contenttype=“ text/html; charset=gb2312”％ >
<％ @ page language=“ java” import=“ java .sql .＊”％ >
<jsp: usebean id ="rencommend" scope="page" class="ymbean.opdb"/>
<form action =recordmessage.jsp method =post name=sign>
<input name=dtkey type=hidden value=ta_routes>
<table bgcolor=#d5e8fd border=0 cellspacing=1 width="97%">
<tbody>
<tr> <td nowrap width="45%" height="185">
<div align=left>
<table bgcolor=#d5e8fd border=0 cellspacing=1 width="100%">
<tbody>
<tr> <td nowrap width="100%" >线路名称：
<input maxlength=100 name = routename size=36>
</td>
</tr>
<tr><td nowrap width="100%">显示序号：
<input maxlength=3 name=routeno size=36>
</td></tr>
<tr>
<td width="100%" >游览内容。文字超一行时 ,请您敲 enter键换行</td>
</tr>
<tr><td width="100%" height="162">
<textarea cols=55 name =c04 rows=9>
</textarea>
</td>
</tr></tbody></table></div></td></tr>
<tr><td align=middle colspan=2 nowrap>
<input name=cmdcommit type=submit value="提交">
</td></tr></tbody></table>
</form></center>
<div></div></body></html>
连接数据库
通过调用 java bean连接 oracle数据库。
opdb.java
package ymbean; // java包
import java.sql.＊ ;
public class opdb {
public opdb() { }
public resultset executequery(string sql)
{
resultset rs = null;
statement lstmt = null;
try { lstmt = connectdb();
rs = lstmt.executequery(sql);
system.out.println(“ executequery:”＋ sql);
} catch(sqlexception ex) { return(null)； }
return rs;
}
public string executeupdate(string sql)
{
resultset rs = null;
statement lstmt = null;
try {
lstmt = connectdb();
lstmt.executeupdate(sql);
system.out.println(“ executeupdate:”＋ sql);
lstmt.executeupdate(“ commit” );
}catch(sqlexception ex) {}
return(“ executeupdate ok” );
}
//连接数据库
public statement connectdb()
{ statement lstmt=null;
connection conn=null;
final string connect_string=“ jdbc:oracle:thin:scott/tiger@192.168.0.1:1521:test” ;
final string driver_string=“ oracle.jdbc.driver.
oracledriver” ;
connection lconn;
try { class.forname(driverstr);
lconn=drivermanager.getconnection(connectstr);
lstmt=lconn.createstatement();
} catch (exception e) { return(null);}
return lstmt;
}
}//end opdb.java
提供发布信息的交互界面，调用 recordmessage.jsp程序。
saymessage.jsp
<html> <head> <title> 信息发布</title>
<meta content = "text/html; charset=gb2312" http-equiv = content-type>
<link href ="css_01.css" rel = stylesheet>
<meta content = "mshtml 5.00.3103.1000" name =generator> </head>
<body>
<％ @ page contenttype=“ text/html; charset=gb2312”％ >
<％ @ page language=“ java” import=“ java .sql .＊”％ >
<jsp: usebean id ="rencommend" scope="page" class="ymbean.opdb"/>
<form action =recordmessage.jsp method =post name=sign>
<input name=dtkey type=hidden value=ta_routes>
<table bgcolor=#d5e8fd border=0 cellspacing=1 width="97%">
<tbody>
<tr> <td nowrap width="45%" height="185">
<div align=left>
<table bgcolor=#d5e8fd border=0 cellspacing=1 width="100%">
<tbody>
<tr> <td nowrap width="100%" >线路名称：
<input maxlength=100 name = routename size=36>
</td>
</tr>
<tr><td nowrap width="100%">显示序号：
<input maxlength=3 name=routeno size=36>
</td></tr>
<tr>
<td width="100%" >游览内容。文字超一行时 ,请您敲 enter键换行</td>
</tr>
<tr><td width="100%" height="162">
<textarea cols=55 name =c04 rows=9>
</textarea>
</td>
</tr></tbody></table></div></td></tr>
<tr><td align=middle colspan=2 nowrap>
<input name=cmdcommit type=submit value="提交">
</td></tr></tbody></table>
</form></center>
<div></div></body></html>
连接数据库
通过调用 java bean连接 oracle数据库。
opdb.java
package ymbean; // java包
import java.sql.＊ ;
public class opdb {
public opdb() { }
public resultset executequery(string sql)
{
resultset rs = null;
statement lstmt = null;
try { lstmt = connectdb();
rs = lstmt.executequery(sql);
system.out.println(“ executequery:”＋ sql);
} catch(sqlexception ex) { return(null)； }
return rs;
}
public string executeupdate(string sql)
{
resultset rs = null;
statement lstmt = null;
try {
lstmt = connectdb();
lstmt.executeupdate(sql);
system.out.println(“ executeupdate:”＋ sql);
lstmt.executeupdate(“ commit” );
}catch(sqlexception ex) {}
return(“ executeupdate ok” );
}
//连接数据库
public statement connectdb()
{ statement lstmt=null;
connection conn=null;
final string connect_string=“ jdbc:oracle:thin:scott/tiger@192.168.0.1:1521:test” ;
final string driver_string=“ oracle.jdbc.driver.
oracledriver” ;
connection lconn;
try { class.forname(driverstr);
lconn=drivermanager.getconnection(connectstr);
lstmt=lconn.createstatement();
} catch (exception e) { return(null);}
return lstmt;
}
}//end opdb.java
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