JDBC增删改查练习

public class test {


    @Test
    public void select() throws Exception {
        Properties prop=new Properties();

        prop.load(new FileInputStream("C:\\Users\\Administrator\\IdeaProjects\\JDBC\\JDB\\src\\druid1.properties"));
        //获取连接池对象
        DataSource datasource= DruidDataSourceFactory.createDataSource(prop);
        //获取数据库连接
        Connection connection=datasource.getConnection();

        String sql="SELECT * FROM student;";
        //获取psmt对象
        PreparedStatement psmt=connection.prepareStatement(sql);
        //执行sql语句
        ResultSet res=psmt.executeQuery();
            student stu=new student();
            List<student> students=new ArrayList<>();
        while(res.next()){
            String name=res.getString("name");
            String id=res.getString("id");
            String cellphone=res.getString("cellphone");

            stu.setName(name);
            stu.setId(id);
            stu.setCellphone(cellphone);

            students.add(stu);

        }
        System.out.println(students);
        psmt.close();
        res.close();
        connection.close();

    }

}

标签：JDBC,String,getString,res,改查,stu,增删,new,psmt
来源： https://www.cnblogs.com/doudou666/p/16428691.html