JDBC连接ORACLE数据库

摘要: ORACLE

package com.db;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class DbConnection {
private static String url="jdbc:oracle:thin:@localhost :1521:orcl";
//system为登陆oracle数据库的用户名
private static String user="dpts";
//manager为用户名system的密码
private static String password="cnoocpst";
public static Connection conn;
public static PreparedStatement pst;
public static ResultSet rs;
//连接数据库的方法
public void getConnection(){
try {
//初始化驱动包
Class.forName("oracle.jdbc.driver.OracleDriver");
//根据数据库连接字符，名称，密码给conn赋值
conn=DriverManager.getConnection(url, user, password);
if(conn==null){
System.out.println("与oracle数据库连接失败！");
}else{
System.out.println("与oracle数据库连接成功！");
}

} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
/**
* 查询所有数据
*/
public void findAll(){
String name;
String sex;
int age;
String address;
String phone;
getConnection();
String sql="select * from EMP";
try {
pst=conn.prepareStatement(sql);
rs=pst.executeQuery();
while(rs.next()){
name=rs.getString("NAME");
sex=rs.getString("SEX");
age=rs.getInt("AGE");
address=rs.getString("ADDRESS");
phone=rs.getString("PHONE");
System.out.println(name+"->"+sex+"->"+age+"->"+address+"->"+phone);

}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{

try {
rs.close();
pst.close();
conn.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}
//测试能否与oracle数据库连接成功
public static void main(String[] args) {
DbConnection basedao=new DbConnection();
basedao.findAll();

}
}