simplejdbc_yanggx.java

来自「java的团队合作代码」· Java 代码 · 共 51 行

package com.jk.jdbc;

import java.sql.*;

public class SimpleJdbc_yanggx {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//初始化变量
		String driver = "oracle.jdbc.driver.OracleDriver";
		String url = "jdbc:oracle:thin:@10.22.78.99:1521:XE";
		String username = "yanggx";
		String password = "ygx1028";
		//定义jdbc操作的变量
		Connection conn = null;
		Statement stmt = null;
		ResultSet rs = null;
		try{
			//1. register a driver
			Class.forName(driver);
			//2. get a Connection
			conn = DriverManager.getConnection(url, username, password);
			//3. get Statement
			stmt = conn.createStatement();
			String sql = "select id, name from test";
			//4. execute sql
			rs = stmt.executeQuery(sql);
			//5. resultSet
			while(rs.next()){
				System.out.print(rs.getInt("id") + " ");
				System.out.println(rs.getString(2));
			}
		}catch(Exception e){
			
		}finally{
			//6. close resource
			try{
				if(rs != null) rs.close();
				if(stmt != null) stmt.close();
				if(conn != null) conn.close();
			}catch(Exception e){
				e.printStackTrace();
			}
		}
	}

}