第1个回答 2015-07-20
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class BaseDao {
protected Connection conn;
protected PreparedStatement stmt;
protected ResultSet rs;
private String className="oracle.jdbc.driver.OracleDriver";
private String url="jdbc:oracle:thin:@localhost:1521:orcl";
private String user="scott";//数据库用户名
private String password="123";//数据库密码
//获得连接数据库
public void getconn(){
try {
Class.forName(className);
conn=DriverManager.getConnection(url, user, password);
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//关闭数据库连接
public void closeall(){
if(rs!=null){
try {
rs.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(stmt!=null){
try {
stmt.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(conn!=null){
try {
conn.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}本回答被提问者和网友采纳