使用druid内置sql，用avatica驱动连接时，返回404

[code]import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.util.Properties; public class Main { public static void main(String[] args) { System.out.println("Hello World!"); String url = "jdbc:avatica:remote:url=http://localhost:8082/druid/v2/sql/avatica/"; Properties connectionProperties = new Properties(); try(Connection connection = DriverManager.getConnection(url,connectionProperties)){ try(ResultSet resultSet = connection.createStatement() .executeQuery("SELECT COUNT (*) FROM jinfeng_three_1")) { while (resultSet.next()){ System.out.println("hello"); } } catch (SQLException e) { e.printStackTrace(); } } catch (SQLException e) { e.printStackTrace(); } } }[/code][code] 我把上面的localhost换成了服务器的ip，通过其他方法可以正常访问服务器，我导入的jar包有 [/code][code]avatica-1.10.0.jar [/code]