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
3.建立iConn接口,代码如下:
[java] view plaincopy
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
[java] view plaincopy
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
[java] view plaincopy
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:
[java] view plaincopy
asdfasf
1|admin|admin
2|zhaochao|zhaochao
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