influxdb时序数据库，查询，批量插入实例

如红框为influxdb使用jar包。

——influxdb工具类——

package com.sqlServerToInfluxdb.jdbc;

import java.util.Map;

import org.influxdb.InfluxDB;
import org.influxdb.InfluxDBFactory;
import org.influxdb.dto.Point;
import org.influxdb.dto.Point.Builder;
import org.influxdb.dto.Pong;
import org.influxdb.dto.Query;
import org.influxdb.dto.QueryResult;

/**
 * 时序数据库 influxdb 连接
 *
 * */
public class influxdbJDBC {
 
  private String username = "admin";//用户名
  private String password = "admin";//密码
  private String openurl = "http://127.0.0.1:8086";//连接地址
  private String database = "energy_db";//数据库
  //private String measurement = "sys_code";//表
  
  private InfluxDB influxDB;
  
  public influxdbJDBC() {
   influxDbBuild();
   createRetentionPolicy();
  }
  
  /**连接时序数据库，获取influxDB**/
  public InfluxDB influxDbBuild() {
   influxDB = InfluxDBFactory.connect(openurl, username, password);
   Pong pong = influxDB.ping();
   if(pong != null){
    System.out.println("pong：" + pong + ",连接成功！");
   }else{
    System.out.println("连接失败");
    return null;
   }
   influxDB.createDatabase(database);
   return influxDB;
  }
  
  /*
   * 设置数据保存策略
   * defalut 策略名 /database 数据库名/ 30d 数据保存时限30天/ 1  副本个数为1/ 结尾DEFAULT 表示 设为默认的策略
   * */
  public void createRetentionPolicy() {
   String command = String.format("CREATE RETENTION POLICY \"%s\" ON \"%s\" DURATION %s REPLICATION %s DEFAULT", "defalut",database,"30d",1);
   this.query(command);
  }
  
  /*
   * 查询
   * @param command 查询语句
   * @return
   * */
  public QueryResult query(String command) {
   Query query = new Query(command, database);
   QueryResult a = influxDB.query(query);
   return a;
  }
  
  /*
   * 插入
   * @param measurment 表
   * @param tags 标签
   * @param fields 字段
   * */
  public void insert(String measurement,Map tags, Map fields) {
   Builder builder = Point.measurement(measurement);//源码讲表名赋值到类中
   builder.tag(tags);//源码对标签进行验证，不得有空
   builder.fields(fields);//源码将数据值赋值到类中
   
   influxDB.write(database, "", builder.build());//向数据库写数据，builder.build()：验证表名不得为空，field数据长度大于0。
  }
  
  /* 
      * 删除 
      * @param command 删除语句 
      * @return 返回错误信息 
      */
  public String deleteMeasurementData(String command) {
   QueryResult result = influxDB.query(new Query(command, database));
   return result.getError();
  }
  
  /* 
      * 创建数据库 
      * @param dbName 
      */
  public void creatDB(String dbName) {
   influxDB.createDatabase(dbName);
  }
  
  /*
      * 删除数据库 
      * @param dbName 
      */
  public void deleteDB(String dbName) {
   influxDB.deleteDatabase(dbName);
  }
}

————influxdb批量插入数据————自己数据为从sqlserver中获取，可自行定义————

public static void main(String[] args) throws Exception {
  //sqlserver获取数据
  sqlServerJDBC sqlJDBC = new sqlServerJDBC();
  String sql = "select top(100) ATime,TagID,nValue from Tag20171202 ORDER BY TagID,ATime";
  List> sqlserverlist = sqlJDBC.query(sql);
  System.out.println("开始时间：" + new Date().getTime());
  //创建influxdb连接对象
  InfluxDB client = InfluxDBFactory.connect("http://localhost:8086","admin","admin");
  
  int i = 0;//控制循环，批量存储，每10万条数据存储一次
  //声明influxdb批量插入数据对象
  BatchPoints batchPoints = BatchPoints
    .database("energy_db")
    .consistency(InfluxDB.ConsistencyLevel.ALL)
    .build();
  //遍历sqlserver获取数据
  for(Map map : sqlserverlist){
    //创建单条数据对象——表名
    Point point = Point.measurement("influxdb")
      //tag属性——只能存储String类型
      .tag("TAG_TAGID", map.get("tagid"))
      .tag("TAG_ATIME", map.get("atime").substring(0,11))
      //field存储数据
      .addField("FIELDS_NVALUE", map.get("nvalue"))
      .addField("FIELDS_ATIME", String.valueOf(i))
      .build();
    //将单条数据存储到集合中
    batchPoints.point(point);
    i++;
   //每读取十万条数据提交到influxdb存储一次
   if(i / 100000 == 1){
    i = 0;
    client.write(batchPoints);
    batchPoints = BatchPoints
      .database("energy_db")
      .consistency(InfluxDB.ConsistencyLevel.ALL)
      .build();
   }
  }
  client.write(batchPoints); 
  System.out.println("结束时间：" + new Date().getTime() + ",i:");
 }

————influxdb查询————

public static void main(String[] args) {
  influxdbJDBC infJDBC = new influxdbJDBC();
  
  String sql = "select * from influxdb";
  QueryResult results = infJDBC.query(sql);
  if(results.getResults() == null){
   System.out.println("数据为空！");
   return;
  }
  List lists = new ArrayList();
  for(Result result : results.getResults()){
   List series = result.getSeries();
   for(Series serie : series){
    List> values = serie.getValues();//字段字集合
    List colums = serie.getColumns();//字段名
    System.out.println("colums:" + colums);
    for(List