org.apache.iotdb.PrepareStatementDemo Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Timestamp;

public class PrepareStatementDemo {

  private static final Logger LOGGER = LoggerFactory.getLogger(PrepareStatementDemo.class);

  public static void main(String[] args) throws ClassNotFoundException, SQLException {
    Class.forName("org.apache.iotdb.jdbc.IoTDBDriver");
    try (Connection connection =
            DriverManager.getConnection("jdbc:iotdb://127.0.0.1:6667/", "root", "root");
        PreparedStatement preparedStatement =
            connection.prepareStatement(
                "insert into root.ln.wf01.wt01(timestamp,status,temperature) values(?,?,?)")) {

      preparedStatement.setLong(1, 1509465600000L);
      preparedStatement.setBoolean(2, true);
      preparedStatement.setFloat(3, 25.957603f);
      preparedStatement.execute();
      preparedStatement.clearParameters();

      preparedStatement.setLong(1, 1509465660000L);
      preparedStatement.setBoolean(2, true);
      preparedStatement.setFloat(3, 24.359503f);
      preparedStatement.execute();
      preparedStatement.clearParameters();

      preparedStatement.setLong(1, 1509465720000L);
      preparedStatement.setBoolean(2, false);
      preparedStatement.setFloat(3, 20.092794f);
      preparedStatement.execute();
      preparedStatement.clearParameters();

      preparedStatement.setTimestamp(1, Timestamp.valueOf("2017-11-01 00:03:00"));
      preparedStatement.setBoolean(2, false);
      preparedStatement.setFloat(3, 20.092794f);
      preparedStatement.execute();
      preparedStatement.clearParameters();

      try (ResultSet resultSet = preparedStatement.executeQuery("select ** from root")) {
        ResultSetMetaData resultSetMetaData = resultSet.getMetaData();
        while (resultSet.next()) {
          StringBuilder builder = new StringBuilder();
          for (int i = 1; i <= resultSetMetaData.getColumnCount(); i++) {
            builder.append(resultSet.getString(i)).append(",");
          }
          String result = builder.toString();
          LOGGER.info(result);
        }
        for (int i = 1; i <= resultSetMetaData.getColumnCount(); i++) {
          String data =
              resultSetMetaData.getColumnType(i) + "-" + resultSetMetaData.getColumnName(i);
          LOGGER.info(data);
        }
      }
    }
  }
}