java连接oracle数据库(常用数据库连接四)

1.确定安装好oracle数据库，用户名：scott 密码：tiger登录数据库建立一张表，内容如下：



2，eclipse或Myeclipse中建立工程并导入java连接oracle的jar包jdbc-oracle.jar，下载地址：http://download.csdn.net/detail/whzhaochao/6414981

3.建立iConn接口，代码如下：

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package com.zhaochao.dba;

import java.sql.Connection;

public interface iConn {

Connection getConn();

}

4.建立连接oracle数据库类实现iConn接口，代码如下：

注意修改数据库名，用户名和密码

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package com.zhaochao.dba;

import java.sql.Connection;

import java.sql.DriverManager;

public class OrcaleConn implements iConn {

private static final String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

private static final String DBURL = "jdbc:oracle:thin:@127.0.0.1:1521:ORCL" ;

private static final String DBUSER = "scott" ;

private static final String DBPASS = "tiger";

private Connection conn=null;

@Override

public Connection getConn() {

// TODO Auto-generated method stub

try {

Class.forName(DBDRIVER);

this.conn=DriverManager.getConnection(DBURL, DBUSER, DBPASS);

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return this.conn;

}

}

5.测试连接

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package com.zhaochao.dba;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

public class Test {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

// TestMySQL();

TestOracle();

// TestDB2();

// TestSQLServer();

// TestAccess();

}

private static void TestOracle() {

Connection conn=null;

PreparedStatement ps=null;

ResultSet rs=null;

iConn iconn=new OrcaleConn();

conn=iconn.getConn();

String sql="select * from zhaochao";

try {

System.out.println("asdfasf");

ps=conn.prepareStatement(sql);

rs=ps.executeQuery();

while(rs.next()){

System.out.println(rs.getString(1)+"|"+rs.getString(2)+"|"+rs.getString(3));

}

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{

if(conn!=null){

try {

conn.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

if(ps!=null){

try {

ps.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

if(rs!=null){

try {

rs.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

}

}

6.测试结果：

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asdfasf

1|admin|admin

2|zhaochao|zhaochao

来源：http://blog.csdn.net/whzhaochao/article/details/12855963