java使用influxDB数据库的详细代码

本文实例为大家分享了java使用influxDB数据库的具体代码，供大家参考，具体内容如下

1.pom.xml中导入jar包依赖

 
  org.influxdb
  influxdb-java
  2.5
 

2.编写influxDB工具类：

package com.hontye.parameter.util;
 
import org.influxdb.InfluxDB;
import org.influxdb.InfluxDBFactory;
import org.influxdb.dto.Point;
import org.influxdb.dto.Point.Builder;
import org.influxdb.dto.Query;
import org.influxdb.dto.QueryResult;
import java.util.Map;
 

public class InfluxDbUtil {
 
  private static String openurl = "http://127.0.0.1:8086";//连接地址
  private static String username = "root";//用户名
  private static String password = "root";//密码
  private static String database = "PARAMTER_DB";//数据库
  private static String measurement = "tw_parameter_tb";//表名
 
  private InfluxDB influxDB;
 
 
  public InfluxDbUtil(String username, String password, String openurl, String database){
    this.username = username;
    this.password = password;
    this.openurl = openurl;
    this.database = database;
  }
 
  public static InfluxDbUtil setUp(){
    //创建 连接
    InfluxDbUtil influxDbUtil = new InfluxDbUtil(username, password, openurl, database);
 
    influxDbUtil.influxDbBuild();
 
    influxDbUtil.createRetentionPolicy();
 
//   influxDB.deleteDB(database);
//   influxDB.createDB(database);
    return influxDbUtil;
  }
 
  
  public InfluxDB influxDbBuild(){
    if(influxDB == null){
      influxDB = InfluxDBFactory.connect(openurl, username, password);
      influxDB.createDatabase(database);
    }
    return influxDB;
  }
 
  
  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);
  }
 
  
  public QueryResult query(String command){
    return influxDB.query(new Query(command, database));
  }
 
  
  public void insert(Map tags, Map fields){
    Builder builder = Point.measurement(measurement);
    builder.tag(tags);
    builder.fields(fields);
 
    influxDB.write(database, "", builder.build());
  }
 
  
  public String deleteMeasurementData(String command){
    QueryResult result = influxDB.query(new Query(command, database));
    return result.getError();
  }
 
  
  public void createDB(String dbName){
    influxDB.createDatabase(dbName);
  }
 
  
  public void deleteDB(String dbName){
    influxDB.deleteDatabase(dbName);
  }
 
  public String getUsername() {
    return username;
  }
 
  public void setUsername(String username) {
    this.username = username;
  }
 
  public String getPassword() {
    return password;
  }
 
  public void setPassword(String password) {
    this.password = password;
  }
 
  public String getOpenurl() {
    return openurl;
  }
 
  public void setOpenurl(String openurl) {
    this.openurl = openurl;
  }
 
  public void setDatabase(String database) {
    this.database = database;
  }
}

3.存值

public class QuatyServiceImpl{
private InfluxDbUtil influxDB;
 
public void intoDb() {
  influxDB = InfluxDbUtil.setUp();
  Map tags = new HashMap<>();
  Map fields = new HashMap<>();
  tags.put("TAG_NAME",info.getKey());
  fields.put("TAG_VALUE",code);
  fields.put("TIMAMPEST", df.format(new Date()));
  influxDB.insert(tags, fields);
  }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。