JDBC

时间:2022-05-08
本文章向大家介绍JDBC,主要内容包括其使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。
import static org.junit.Assert.*;

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

import org.junit.Test;


public class LianXi {

	@Test
	public void test() {
		Connection conn = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		Statement statement = null;
		String sql = null;
		
		String driverClass = "com.mysql.jdbc.Driver";
		String jdbcUrl = "jdbc:mysql:///test";
		String user = "root";
		String password = "root";
		
		try {
			Class.forName(driverClass);
			conn = DriverManager.getConnection(jdbcUrl,user,password);
			
			//插入数据
			sql = "INSERT INTO customer (name,birth,email) VALUES(?,?,?)";
			ps = conn.prepareStatement(sql);
			ps.setString(1, "abdc");
			ps.setDate(2, new Date(new java.util.Date().getTime()));
			ps.setString(3, "123@com");
			ps.executeUpdate();
			
			//查询结果集
			sql = "SELECT * FROM customer";
			statement = conn.createStatement();
			rs = statement.executeQuery(sql);
			while(rs.next()){
				int id = rs.getInt("id");
				String name = rs.getString("name");
				String email = rs.getString("email");
				Date date = rs.getDate("birth");
				System.out.println(id+" "+name+" "+email+" "+date);
				
			}
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			e.printStackTrace();
		}
		
	}

}