jdbcexample.java

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import java.sql.*;

public class JDBCExample{	
    public static void main(String args[]){
		String serverName = "localhost";
		try{
	Class.forName("oracle.jdbc.driver.OracleDriver");//注册driver		    String url = "jdbc:oracle:thin:@"+serverName+":1521:ora9";
		    Connection conn = DriverManager.getConnection(url,"scott","tiger");
		    Statement stmt=conn.createStatement();
		    ResultSet rs=stmt.executeQuery("select * from dept");
		    while(rs.next()){
				System.out.print("DeptNo: "+rs.getInt(1));
				System.out.print("\tDeptName: "+rs.getString(2));
				System.out.println("\tLOC: "+rs.getString(3));
			}
           rs.close();
           stmt.close();
           conn.close();
		}catch(Exception e){
		    e.printStackTrace();
		}
    }
}