import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.SQLException;import java.io.IOException;/**
* <p>Title: JdbcTest</p>
* <p>Description: 测试Jdbc的驱动实现程序</p>
* <p>Copyright: Copyright (c) 2002.4</p>
*/
public class JdbcTest
{
public static void main (String args [])
throws SQLException, IOException
{
System.out.println ("Loading Oracle driver");
//get connection
Connection conn = null;
try
{
conn = connectDb();
System.out.println ("Connecting to the local database");
}
catch(IOException e)
{
throw e;
} /*--------------------------------------------------------------------*/ Statement stmt = null;
ResultSet rs = null;
try
{
//create statement
stmt = conn.createStatement ();
//get resultSet
rs = stmt.executeQuery ("select * from tab");
int line = 1;
//print result
while (rs.next ())
{
System.out.println ("line"+line+" first element is : "+rs.getString (1));
System.out.println ("line"+line+" second element is : "+rs.getString (2));
line++;
}
}
catch(SQLException e)
{
System.out.println("Can not select from the table!");
throw e;
}
finally
{
//close connection statment result
close(rs);
close(stmt);
close(conn);
}
} /*========================================================================*/ /**
* 注册驱动并连接数据库
*
* @param
* @return Connection 一个到指定数据库的连接
* @excpetion IOException
*/
private static Connection connectDb() throws IOException
{
//需要返回的参数对象
Connection conn = null;
try
{
//注册并连接数据库
java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//使用用户名,密码以及URL地址连接数据库
conn = java.sql.DriverManager.getConnection("jdbc:oracle:oci8:@","ivan","ivan");
}
catch( Exception e )
{
//捕捉异常并抛出IOException
System.out.println("Can not connec to the database! The exception is " + e.toString());
throw new IOException("Can not connect to the database!");
}
//返回需要的参数
return(conn);
} /*========================================================================*/ /**
* 释放数据连接
*
* @param Connection 一个到指定数据库的连接
* @return
* @excpetion
*/
private static void close(Connection conn)
{
try
{
conn.close();
}
catch(Exception e)
{
//关闭的时候竟然又出错 不理它
}
} /*========================================================================*/ /**
* 释放光标
*
* @param Statement stmt 指定的光标
* @return
* @excpetion
*/
private static void close(Statement stmt)
{
try
{
stmt.close();
}
catch(Exception e)
{
//关闭的时候竟然又出错 不理它
}
} /*========================================================================*/ /**
* 释放结果集
*
* @param ResultSet rs 指定的结果集
* @return
* @excpetion
*/
private static void close(ResultSet rs)
{
try
{
rs.close();
}
catch(Exception e)
{
//关闭的时候竟然又出错 不理它
}
}
}
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.SQLException;import java.io.IOException;/**
* <p>Title: JdbcTest</p>
* <p>Description: 测试Jdbc的驱动实现程序</p>
* <p>Copyright: Copyright (c) 2002.4</p>
*/
public class JdbcTest
{
public static void main (String args [])
throws SQLException, IOException
{
System.out.println ("Loading Oracle driver");
//get connection
Connection conn = null;
try
{
conn = connectDb();
System.out.println ("Connecting to the local database");
}
catch(IOException e)
{
throw e;
} /*--------------------------------------------------------------------*/ Statement stmt = null;
ResultSet rs = null;
try
{
//create statement
stmt = conn.createStatement ();
//get resultSet
rs = stmt.executeQuery ("select * from tab");
int line = 1;
//print result
while (rs.next ())
{
System.out.println ("line"+line+" first element is : "+rs.getString (1));
System.out.println ("line"+line+" second element is : "+rs.getString (2));
line++;
}
}
catch(SQLException e)
{
System.out.println("Can not select from the table!");
throw e;
}
finally
{
//close connection statment result
close(rs);
close(stmt);
close(conn);
}
} /*========================================================================*/ /**
* 注册驱动并连接数据库
*
* @param
* @return Connection 一个到指定数据库的连接
* @excpetion IOException
*/
private static Connection connectDb() throws IOException
{
//需要返回的参数对象
Connection conn = null;
try
{
//注册并连接数据库
java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//使用用户名,密码以及URL地址连接数据库
conn = java.sql.DriverManager.getConnection("jdbc:oracle:oci8:@","ivan","ivan");
}
catch( Exception e )
{
//捕捉异常并抛出IOException
System.out.println("Can not connec to the database! The exception is " + e.toString());
throw new IOException("Can not connect to the database!");
}
//返回需要的参数
return(conn);
} /*========================================================================*/ /**
* 释放数据连接
*
* @param Connection 一个到指定数据库的连接
* @return
* @excpetion
*/
private static void close(Connection conn)
{
try
{
conn.close();
}
catch(Exception e)
{
//关闭的时候竟然又出错 不理它
}
} /*========================================================================*/ /**
* 释放光标
*
* @param Statement stmt 指定的光标
* @return
* @excpetion
*/
private static void close(Statement stmt)
{
try
{
stmt.close();
}
catch(Exception e)
{
//关闭的时候竟然又出错 不理它
}
} /*========================================================================*/ /**
* 释放结果集
*
* @param ResultSet rs 指定的结果集
* @return
* @excpetion
*/
private static void close(ResultSet rs)
{
try
{
rs.close();
}
catch(Exception e)
{
//关闭的时候竟然又出错 不理它
}
}
}
改为:
String sDBDriver="oracle.jdbc.driver.OracleDriver";
<%@ page contentType="text/html;charset=gb2312"%>
<%@ page import="java.sql.*"%>
<html>
<body>
<%Class.forName("oracle.jdbc.driver.OracleDriver").newInstance();
String url="jdbc:oracle:thin:@localhost:1521:orcl";
//orcl为你的数据库的SID
String user="scott";
String password="tiger";
Connection conn= DriverManager.getConnection(url,user,password);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from test";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next()) {%>
您的第一个字段内容为:<%=rs.getString(1)%>
您的第二个字段内容为:<%=rs.getString(2)%>
<%}%>
<%out.print("数据库操作成功,恭喜你");%>
<%rs.close();
stmt.close();
conn.close();
%>
</body>
</html>
至少是:oracle.jdbc.driver.OracleDriver
请 正确区分大小写.
望大家关注一下我发的关于oci连接方式设置的提问。谢谢!