JDBC技术

在连接数据库之前我们需要下载编译工具，数据库，以及在编译器中导入相应的jar包，在这里使用idea编译器，mysql数据库

public class Main {

    public static void main(String[] args) {
        Connection conn = null;
        Statement stmt = null;
        try {
            DriverManager.registerDriver(new com.mysql.jdbc.Driver());
            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
            stmt = conn.createStatement();
            String sql = "insert into c(name) values(4564564) ";
            stmt.executeUpdate(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            if (stmt != null) {
                try {
                    stmt.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
            if (conn != null) {
                try {
                    conn.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}