package spring_jdbctemplate;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

import org.junit.Test;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

public class JdbcTemplateDemo2 {
	@Test
	public void delete(){
		DriverManagerDataSource dataSource=new DriverManagerDataSource();
		dataSource.setDriverClassName("com.mysql.jdbc.Driver");
		dataSource.setUrl("jdbc:mysql://xxxx:3306/test");
		dataSource.setUsername("hpn");
		dataSource.setPassword("hpn2017");
		//常見JdbcTemplate物件，設定資料來源
		JdbcTemplate jdbcTemplate=new JdbcTemplate(dataSource);
		//設定sql語句
		String sql="select * from test2";
		List<User> list=jdbcTemplate.query(sql, new MyRowMapper());
		System.out.println(list);
	}
}

class MyRowMapper implements RowMapper<User>{

	@Override
	public User mapRow(ResultSet rs, int num) throws SQLException {
		//從結果集裡把資料得到
		String username=rs.getString("username");
		String password=rs.getString("password");
		//把資料封裝到物件裡
		User user=new User();
		user.setUsername(username);
		user.setPassword(password);
		return user;
	}
	
}
 

返回結果：[User [username:yangyang,password:123], User [username:haha,password:456], User [username:hehe,password:567]]