Writing SQL Server database connection classes with JavaBean

Source: Internet
Author: User
Tags odbc

The following is a simple database connection tool class written in SQL Server, encapsulated in a WEB project (web-inf/classes/) directory, and introduced in Java or JSP pages.

ODBC name: MySQL;

User name: Dxaw;

Password: 123;

Method Executeupdate (): Update the database;

Method ExecuteQuery (): Returns a recordset through an SQL statement;

The code is as follows:

Class Conn.db.conndb.java

package conn.db;
import java.sql.*;
public class conndb {
 Connection conn;
 ResultSet rs;
 private int count;
  public conndb() {
  try {
    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
  } catch (Exception ex) {}
  }
 public ResultSet executeQuery(String sql){
  try {
    conn=DriverManager.getConnection("Jdbc:Odbc:mysql","dxaw","123");
    Statement stat=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
    rs=stat.executeQuery(sql);
  } catch (Exception ex1) {
  }
 return rs;
 }
public void executeUpdate(String sql){
   try {
      conn = DriverManager.getConnection("Jdbc:Odbc:mysql", "dxaw","123");
      Statement stat=conn.createStatement();
      stat.executeQuery(sql);
    } catch (Exception ex2) {
  }
}
}

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.