code: public static PreparedStatement prepareStatement(Connection conn, String sql, Collection<Object> params) throws SQLException {
  		return prepareStatement(conn, sql, params.toArray(new Object[params.size()]));
  	}
docs: 创建{@link PreparedStatement}
  
  @param conn 数据库连接
  @param sql SQL语句，使用"?"做为占位符
  @param params "?"对应参数列表
  @return {@link PreparedStatement}
  @throws SQLException SQL异常
  @since 3.2.3