java如何连接oracle7.3数据库,

发布网友发布时间：2022-04-08 04:10

共4个回答

热心网友时间：2022-04-08 05:39

import java.sql.Connection;
import java.sql.DriverManager;
public class JDBCDemo {

private static JDBCDemo JDBCDemo = new JDBCDemo();
private static Connection conn = null;
private String userName = "xxxx";
private String passwd ="xxx";
private JDBCDemo(){
  this.createConnection();
}

private synchronized JDBCDemo getInstance(){
  if (JDBCDemo == null ){
   JDBCDemo = new JDBCDemo();
  }
  return JDBCDemo;
}
protected void createConnection(){
  try {
   Class.forName("oracle.jdbc.driver.OracleDriver");//加载驱动
   conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:bms"/**/,/**/userName,/**/passwd);
  }catch(Exception e) {
   e.printStackTrace();
  }
}

public Connection getConnection(){
  return conn;
}

}

jdbc连接fangshi

热心网友时间：2022-04-08 06:57

第一步：加载驱动
Class.forName("oracle.jdbc.driver.OracleDriver");

第二步：构造连接
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521/db","user","password");

这样就连上了

热心网友时间：2022-04-08 08:32

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

Connection con = DriverManager.getConnection("jdbc:oracle:thin:@127.0.0.1:1521/db","user","password");

热心网友时间：2022-04-08 10:23

去哪找那么古老的版本

应该是相似的
试试
http://zhidao.baidu.com/question/161407728.html
或

http://zhidao.baidu.com/question/262698371.html