druid--jdbc基础操作一

package text02;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import com.alibaba.druid.pool.DruidDataSource;

public class DRUID01 {

	public static void main(String[] args) throws SQLException {
		DruidDataSource druidDataSource = new DruidDataSource();
		druidDataSource.setDriverClassName("com.mysql.jdbc.Driver");
		druidDataSource.setUrl("jdbc:mysql://localhost:3306/jdbc?useSSL=false");
		Connection connection = druidDataSource.getConnection("root","root");
		
		//增删改查
		//增
		/*
		Statement statement = connection.createStatement();
		String sql = "insert into users values(3,\"abc\",\"aasd\",\"asd\")";
		
		int executeUpdate = statement.executeUpdate(sql);
		System.out.println("成功增加"+executeUpdate+"条数据");
		*/
		//删
		/*
		Statement statement = connection.createStatement();
		String sql = "delete from users where id = 1";
		
		int executeUpdate = statement.executeUpdate(sql);
		System.out.println("成功删除"+executeUpdate+"条数据");
		 */
		
		/*
		 * 改
		Statement statement = connection.createStatement();
		String sql = "update users set name = \"asadasd\" where id =1";
		
		int executeUpdate = statement.executeUpdate(sql);
		System.out.println("成功修改"+executeUpdate+"条数据");
		*/
		
		//查询
		Statement statement = connection.createStatement();
		String sql = "select * from users";
		
		ResultSet resultSet = statement.executeQuery(sql);
		while(resultSet.next()) {
			System.out.println(resultSet.getString("name"));
		}
		resultSet.close();
		statement.close();
		connection.close();
		druidDataSource.close();
	}
}