Java版InfluxDB工具类

Influxdb工具类 

package com.influxdb.test;

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.Query;
import org.influxdb.dto.QueryResult;
import org.springframework.util.StringUtils;

/**
 * 时序数据库 InfluxDB 连接
 * @author Dai_LW
 *
 */
public class InfluxDBConnect {

    private String username;//用户名
    private String password;//密码
    private String openurl;//连接地址
    private String database;//数据库

    private InfluxDB influxDB;


    public InfluxDBConnect(String username, String password, String openurl, String database){
        this.username = username;
        this.password = password;
        this.openurl = openurl;
        this.database = database;
    }

    /**连接时序数据库；获得InfluxDB**/
    public InfluxDB  influxDbBuild(){
        if(influxDB == null){
            influxDB = InfluxDBFactory.connect(openurl, username, password);
            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){
        return influxDB.query(new Query(command, database));
    }

    /**
     * 插入
     * @param measurement 表
     * @param tags 标签
     * @param fields 字段
     */
    public void insert(String measurement, Map tags, Map fields){
        Builder builder = Point.measurement(measurement);
        builder.tag(tags);
        builder.fields(fields);

        influxDB.write(database, "", builder.build());
    }

    /**
     * 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 createDB(String dbName){
        influxDB.createDatabase(dbName);
    }

    /**
     * 删除数据库
     * @param 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;
    }
}

测试类

package com.influxdb.test;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import junit.framework.Assert;

import org.influxdb.dto.QueryResult;
import org.influxdb.dto.QueryResult.Result;
import org.influxdb.dto.QueryResult.Series;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.BeanWrapperImpl;

import com.influxdb.pojo.CodeInfo;

public class InfluxDBTest {

    private InfluxDBConnect influxDB;
    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 = "test_db";//数据库
    private String measurement = "sys_code";

    @Before
    public void setUp(){
        //创建 连接
        influxDB = new InfluxDBConnect(username, password, openurl, database);

        influxDB.influxDbBuild();

        influxDB.createRetentionPolicy();

//        influxDB.deleteDB(database);
//        influxDB.createDB(database);
    }

    @Test
    public void testInsert(){//测试数据插入
        Map tags = new HashMap();
        Map fields = new HashMap();
        List list = new ArrayList();

        CodeInfo info1 = new CodeInfo();
        info1.setId(1L);
        info1.setName("BANKS");
        info1.setCode("ABC");
        info1.setDescr("中国农业银行");
        info1.setDescrE("ABC");
        info1.setCreatedBy("system");
        info1.setCreatedAt(new Date().getTime());

        CodeInfo info2 = new CodeInfo();
        info2.setId(2L);
        info2.setName("BANKS");
        info2.setCode("CCB");
        info2.setDescr("中国建设银行");
        info2.setDescrE("CCB");
        info2.setCreatedBy("system");
        info2.setCreatedAt(new Date().getTime());

        list.add(info1);
        list.add(info2);

        for(CodeInfo info : list){

            tags.put("TAG_CODE", info.getCode());
            tags.put("TAG_NAME", info.getName());

            fields.put("ID", info.getId());
            fields.put("NAME", info.getName());
            fields.put("CODE", info.getCode());
            fields.put("DESCR", info.getDescr());
            fields.put("DESCR_E", info.getDescrE());
            fields.put("CREATED_BY", info.getCreatedBy());
            fields.put("CREATED_AT", info.getCreatedAt());

            influxDB.insert(measurement, tags, fields);
        }
    }

    @Test
    public void testQuery(){//测试数据查询
        String command = "select * from sys_code";
        QueryResult results = influxDB.query(command);

        if(results.getResults() == null){
            return;
        }
        List lists = new ArrayList();
        for (Result result : results.getResults()) {

            List series= result.getSeries();
            for (Series serie : series) {
//                Map tags = serie.getTags();
                List>  values = serie.getValues();
                List columns = serie.getColumns();

                lists.addAll(getQueryData(columns, values));
            }
        }

        Assert.assertTrue((!lists.isEmpty()));
        Assert.assertEquals(2, lists.size());
    }

    @Test
    public void testQueryWhere(){//tag 列名 区分大小写
        String command = "select * from sys_code where TAG_CODE='ABC'";
        QueryResult results = influxDB.query(command);

        if(results.getResults() == null){
            return;
        }
        List lists = new ArrayList();
        for (Result result : results.getResults()) {

            List series= result.getSeries();
            for (Series serie : series) {
                List>  values = serie.getValues();
                List columns = serie.getColumns();

                lists.addAll(getQueryData(columns, values));
            }
        }

        Assert.assertTrue((!lists.isEmpty()));
        Assert.assertEquals(1, lists.size());

        CodeInfo info = lists.get(0);

        Assert.assertEquals(info.getCode(), "ABC");

    }

    @Test
    public void deletMeasurementData(){
        String command = "delete from sys_code where TAG_CODE='ABC'";
        String err = influxDB.deleteMeasurementData(command);
        Assert.assertNull(err);
    }

    /***整理列名、行数据***/
    private List getQueryData(List columns, List>  values){
        List lists = new ArrayList();

        for (List