How to use Java to operate InfluxDB

To operate InfluxDB using Java, you need to add the following Maven dependencies: <dependency> <groupId>org.influxdb</groupId> <artifactId>influxdb-java</artifactId> <version>2.17</version> </dependency> The following is a sample code for Java implementation of data addition, deletion, modification, and query in InfluxDB: import org.influxdb.InfluxDB; import org.influxdb.InfluxDBFactory; import org.influxdb.dto.BatchPoints; import org.influxdb.dto.Point; import org.influxdb.dto.Query; import org.influxdb.dto.QueryResult; import java.util.concurrent.TimeUnit; public class InfluxDBOperations { private static final String INFLUXDB_URL = "http://localhost:8086"; private static final String INFLUXDB_USERNAME = "username"; private static final String INFLUXDB_PASSWORD = "password"; private static final String DATABASE_NAME = "mydb"; public static void main(String[] args) { //Connect to an InfluxDB instance InfluxDB influxDB = InfluxDBFactory.connect(INFLUXDB_URL, INFLUXDB_USERNAME, INFLUXDB_PASSWORD); //Create a database (if it does not exist) influxDB.createDatabase(DATABASE_NAME); //Select Database influxDB.setDatabase(DATABASE_NAME); //Create point data Point point1 = Point.measurement("cpu") .time(System.currentTimeMillis(), TimeUnit.MILLISECONDS) .addField("value", 80) .addField("host", "server1") .build(); Point point2 = Point.measurement("cpu") .time(System.currentTimeMillis(), TimeUnit.MILLISECONDS) .addField("value", 65) .addField("host", "server2") .build(); //Write single point data influxDB.write(point1); //Batch write point data BatchPoints batchPoints = BatchPoints.database(DATABASE_NAME) .point(point2) .build(); influxDB.write(batchPoints); //Query data Query query = new Query("SELECT value FROM cpu", DATABASE_NAME); QueryResult queryResult = influxDB.query(query); System.out.println(queryResult); //Delete data Query deleteQuery = new Query("DELETE FROM cpu WHERE host = 'server1'", DATABASE_NAME); influxDB.query(deleteQuery); //Close Connection influxDB.close(); } } Please ensure that INFLUXDB_ URL, INFLUXDB_ USERNAME, INFLUXDB_ Replace PASSWORD with the actual InfluxDB connection information.