package java_jdbc;

//java连接Oracle数据库

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.Statement;

public class JdbcOracleTest {

public static void main(String[] args) {

// TODO Auto-generated method stub

//1.加载驱动

Connection conn=null; //连接对象

Statement stmt=null; //语句对象

ResultSet rs=null; //数据集对象

String url="jdbc:oracle:thin:@localhost:1521:orcl";

String username="scott"; //Oracle数据库用户名

String password="tiger"; //Oracle数据库密码

try {

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

//2.获得数据库连接

conn=DriverManager.getConnection(url,username,password);

/*

//判断数据库连接是否成功

if(conn!=null)

{

System.out.println("Oracle数据库间接成功");

}else{

System.out.println("Oracle数据库连接失败");

}

*/

//3.创建语句对象

stmt=conn.createStatement();

String sql="select * from students";//students是Oracle数据库中的表名

rs=stmt.executeQuery(sql);

//遍历输出数据库students表中的数据

while(rs.next())

{

System.out.println(rs.getInt("sid")+","+

rs.getString("sname")+","+rs.getString("gender")+","+

rs.getString("birthday")+","+rs.getString("marjor")+","+

rs.getString("address"));

}

} catch (Exception e) {

// TODO Auto-generated catch block

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 (Exception ex) {

ex.printStackTrace();

}

}

}

}

2.Oracle的配置：

Oracle的用户名为：scott

Oracle的密码为：tiger

数据库为：oral11g

创建的数据表为：students