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This article is about how Servlet connects to Oracle. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Copy the driver $ORACL_HOME/jdbc/lib/ojdbc6.jar of oracle to D:\ Tomcat5.5.17\ webapps\ my\ WEB-INF\ lib. (because the jar package is required at run time)

Package test

Import java.io.IOException

Import java.io.PrintWriter

Import javax.servlet.ServletException

Import javax.servlet.http.HttpServlet

Import javax.servlet.http.HttpServletRequest

Import javax.servlet.http.HttpServletResponse

Import java.sql.*

Public class Conndb extends HttpServlet {

Public void doGet (HttpServletRequest request, HttpServletResponse response)

Throws ServletException, IOException {

Connection conn = null

Statement stmt = null

ResultSet rs = null

Response.setContentType ("text/html")

Response.setCharacterEncoding ("gb2312")

PrintWriter out = response.getWriter ()

Out.println ("")

Out.println ("Content:")

Try {

Class.forName ("oracle.jdbc.driver.OracleDriver")

Conn = DriverManager.getConnection ("jdbc:oracle:thin:@192.168.1.250:1521:test", "scott", "tiger")

Stmt = conn.createStatement ()

Rs = stmt.executeQuery ("select * from emp")

While (rs.next ()) {

Out.println ("")

Out.println ("" + rs.getString ("ename") + "")

Out.println ("" + rs.getString ("MGR") + "")

Out.println ("")

}

Out.println ("")

} catch (ClassNotFoundException e) {

E.printStackTrace ()

} catch (SQLException e) {

E.printStackTrace ()

} finally {

Try {

If (rs! = null) {

Rs.close ()

Rs = null

}

If (stmt! = null) {

Stmt.close ()

Stmt= null

}

If (conn! = null) {

Conn.close ()

Conn = null

}

} catch (SQLException e) {

E.printStackTrace ()

}

}

}

}

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