Springboot整合HBase

青春不散场2023-09-01 10:08

Springboot整合HBase数据库

1、添加依赖
xml 复制代码 
<!-- Spring Boot HBase 依赖 -->
<dependency>
    <groupId>com.spring4all</groupId>
    <artifactId>spring-boot-starter-hbase</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-hadoop-hbase</artifactId>
    <version>2.5.0.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-hadoop</artifactId>
    <version>2.5.0.RELEASE</version>
</dependency>
2、添加配置
通过Yaml方式配置
yaml 复制代码 
spring:
  hbase:
     zookeeper:
      quorum: hbase1.xxx.org,hbase2.xxx.org,hbase3.xxx.org
      property:
         clientPort: 2181
  data:
    hbase:
      quorum: XXX
      rootDir: XXX
      nodeParent: XXX

zookeeper:
  znode:
    parent: /hbase
3、添加配置类
java 复制代码 
@Configuration
public class HBaseConfig {
    @Bean
    public HBaseService getHbaseService() {
        //设置临时的hadoop环境变量，之后程序会去这个目录下的\bin目录下找winutils.exe工具，windows连接hadoop时会用到
        //System.setProperty("hadoop.home.dir", "D:\\Program Files\\Hadoop");
        //执行此步时，会去resources目录下找相应的配置文件，例如hbase-site.xml
        org.apache.hadoop.conf.Configuration conf = HBaseConfiguration.create();
        return new HBaseService(conf);
    }
}
4、工具类的方式实现HBASE操作
java 复制代码 
@Service
public class HBaseService {

    private Admin admin = null;
    private Connection connection = null;

    public HBaseService(Configuration conf) {
        connection = ConnectionFactory.createConnection(conf);
            admin = connection.getAdmin();
    }

    //创建表 create <table>, {NAME => <column family>, VERSIONS => <VERSIONS>}
    public boolean creatTable(String tableName, List<String> columnFamily) {
        //列族column family
        List<ColumnFamilyDescriptor> cfDesc = new ArrayList<>(columnFamily.size());
        columnFamily.forEach(cf -> {
            cfDesc.add(ColumnFamilyDescriptorBuilder.newBuilder(
                Bytes.toBytes(cf)).build());
        });
        //表 table
        TableDescriptor tableDesc = TableDescriptorBuilder
            .newBuilder(TableName.valueOf(tableName))
            .setColumnFamilies(cfDesc).build();
        if (admin.tableExists(TableName.valueOf(tableName))) {
            log.debug("table Exists!");
        } else {
            admin.createTable(tableDesc);
            log.debug("create table Success!");
        }
        close(admin, null, null);
        return true;
    }

    public List<String> getAllTableNames() {
        List<String> result = new ArrayList<>();
        TableName[] tableNames = admin.listTableNames();
        for (TableName tableName : tableNames) {
            result.add(tableName.getNameAsString());
        }
        close(admin, null, null);
        return result;
    }

    public Map<String, Map<String, String>> getResultScanner(String tableName) {
        Scan scan = new Scan();
        return this.queryData(tableName, scan);
    }

    private Map<String, Map<String, String>> queryData(String tableName, Scan scan) {
        // <rowKey,对应的行数据>
        Map<String, Map<String, String>> result = new HashMap<>();
        ResultScanner rs = null;
        //获取表
        Table table = null;
        table = getTable(tableName);
        rs = table.getScanner(scan);
        for (Result r : rs) {
            // 每一行数据
            Map<String, String> columnMap = new HashMap<>();
            String rowKey = null;
            // 行键，列族和列限定符一起确定一个单元（Cell）
            for (Cell cell : r.listCells()) {
                if (rowKey == null) {
                    rowKey = Bytes.toString(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength());
                }
                columnMap.put(
                    //列限定符
                    Bytes.toString(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength()),
                    //列族
                    Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength()));
            }
            if (rowKey != null) {
                result.put(rowKey, columnMap);
            }
        }
        close(null, rs, table);

        return result;
    }

    public void putData(String tableName, String rowKey, String familyName, String[] columns, String[] values) {
        Table table = null;
        table = getTable(tableName);
        putData(table, rowKey, tableName, familyName, columns, values);
        close(null, null, table);

    }

    private void putData(Table table, String rowKey, String tableName, 
                         String familyName, String[] columns, String[] values) {
        //设置rowkey
        Put put = new Put(Bytes.toBytes(rowKey));
        if (columns != null && values != null && columns.length == values.length) {
            for (int i = 0; i < columns.length; i++) {
                if (columns[i] != null && values[i] != null) {
                    put.addColumn(Bytes.toBytes(familyName), Bytes.toBytes(columns[i]), Bytes.toBytes(values[i]));
                } else {
                    throw new NullPointerException(MessageFormat.format(
                        "列名和列数据都不能为空,column:{0},value:{1}", columns[i], values[i]));
                }
            }
        }
        table.put(put);
        log.debug("putData add or update data Success,rowKey:" + rowKey);
        table.close();

    }
    private Table getTable(String tableName) throws IOException {
        return connection.getTable(TableName.valueOf(tableName));
    }

    private void close(Admin admin, ResultScanner rs, Table table) {
        if (admin != null) {
            try {
                admin.close();
            } catch (IOException e) {
                log.error("关闭Admin失败", e);
            }

            if (rs != null) {
                rs.close();
            }

            if (table != null) {
                rs.close();
            }

            if (table != null) {
                try {
                    table.close();
                } catch (IOException e) {
                    log.error("关闭Table失败", e);
                }
            }
        }
    }
}
测试类
java 复制代码 
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
class HBaseApplicationTests {
    @Resource
    private HBaseService hbaseService;
    //测试创建表
    @Test
    public void testCreateTable() {
        hbaseService.creatTable("test_base", Arrays.asList("a", "back"));
    }
    //测试加入数据
    @Test
    public void testPutData() {
        hbaseService.putData("test_base", "000001", "a", new String[]{
                "project_id", "varName", "coefs", "pvalues", "tvalues",
                "create_time"}, new String[]{"40866", "mob_3", "0.9416",
                "0.0000", "12.2293", "null"});
        hbaseService.putData("test_base", "000002", "a", new String[]{
                "project_id", "varName", "coefs", "pvalues", "tvalues",
                "create_time"}, new String[]{"40866", "idno_prov", "0.9317",
                "0.0000", "9.8679", "null"});
        hbaseService.putData("test_base", "000003", "a", new String[]{
                "project_id", "varName", "coefs", "pvalues", "tvalues",
                "create_time"}, new String[]{"40866", "education", "0.8984",
                "0.0000", "25.5649", "null"});
    }
    //测试遍历全表
    @Test
    public void testGetResultScanner() {
        Map<String, Map<String, String>> result2 = hbaseService.getResultScanner("test_base");
        System.out.println("-----遍历查询全表内容-----");
        result2.forEach((k, value) -> {
            System.out.println(k + "--->" + value);
        });
    }
}

三、使用spring-data-hadoop-hbase

3、配置类
java 复制代码 
@Configuration
public class HBaseConfiguration {
 
    @Value("${hbase.zookeeper.quorum}")
    private String zookeeperQuorum;
 
    @Value("${hbase.zookeeper.property.clientPort}")
    private String clientPort;
 
    @Value("${zookeeper.znode.parent}")
    private String znodeParent;
 
    @Bean
    public HbaseTemplate hbaseTemplate() {
        org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
        conf.set("hbase.zookeeper.quorum", zookeeperQuorum);
        conf.set("hbase.zookeeper.property.clientPort", clientPort);
        conf.set("zookeeper.znode.parent", znodeParent);
        return new HbaseTemplate(conf);
    }
}
4、业务类中使用HbaseTemplate

这个是作为工具类

java 复制代码 
@Service
@Slf4j
public class HBaseService {
 
 
    @Autowired
    private HbaseTemplate hbaseTemplate;
 	
 	//查询列簇
    public List<Result> getRowKeyAndColumn(String tableName, String startRowkey, 
                                           String stopRowkey, String column, String qualifier) {
        FilterList filterList = new FilterList(FilterList.Operator.MUST_PASS_ALL);
        if (StringUtils.isNotBlank(column)) {
            log.debug("{}", column);
            filterList.addFilter(new FamilyFilter(CompareFilter.CompareOp.EQUAL,
                       new BinaryComparator(Bytes.toBytes(column))));
        }
        if (StringUtils.isNotBlank(qualifier)) {
            log.debug("{}", qualifier);
            filterList.addFilter(new QualifierFilter(CompareFilter.CompareOp.EQUAL, 
                       new BinaryComparator(Bytes.toBytes(qualifier))));
        }
        Scan scan = new Scan();
        if (filterList.getFilters().size() > 0) {
            scan.setFilter(filterList);
        }
        scan.setStartRow(Bytes.toBytes(startRowkey));
        scan.setStopRow(Bytes.toBytes(stopRowkey));
 
        return hbaseTemplate.find(tableName, scan, (rowMapper, rowNum) -> rowMapper);
    }
 
    public List<Result> getListRowkeyData(String tableName, List<String> rowKeys, 
                                          String familyColumn, String column) {
        return rowKeys.stream().map(rk -> {
            if (StringUtils.isNotBlank(familyColumn)) {
                if (StringUtils.isNotBlank(column)) {
                    return hbaseTemplate.get(tableName, rk, familyColumn, 
                                column, (rowMapper, rowNum) -> rowMapper);
                } else {
                    return hbaseTemplate.get(tableName, rk, familyColumn,
                                (rowMapper, rowNum) -> rowMapper);
                }
            }
            return hbaseTemplate.get(tableName, rk, (rowMapper, rowNum) -> rowMapper);
        }).collect(Collectors.toList());
    }
}

四、使用spring-boot-starter-data-hbase

参考：https://blog.csdn.net/cpongo1/article/details/89550486

## 下载spring-boot-starter-hbase代码
git clone https://github.com/SpringForAll/spring-boot-starter-hbase.git
## 安装
cd spring-boot-starter-hbase
mvn clean install
2、添加配置项
  • spring.data.hbase.quorum 指定 HBase 的 zk 地址
  • spring.data.hbase.rootDir 指定 HBase 在 HDFS 上存储的路径
  • spring.data.hbase.nodeParent 指定 ZK 中 HBase 的根 ZNode
3、定义好DTO
java 复制代码 
@Data
public class City {
    private Long id;
    private Integer age;
    private String cityName;  
}
4、创建对应rowMapper
java 复制代码 
public class CityRowMapper implements RowMapper<City> {
 
    private static byte[] COLUMN_FAMILY = "f".getBytes();
    private static byte[] NAME = "name".getBytes();
    private static byte[] AGE = "age".getBytes();
 
    @Override
    public City mapRow(Result result, int rowNum) throws Exception {
        String name = Bytes.toString(result.getValue(COLUMN_FAMILY, NAME));
        int age = Bytes.toInt(result.getValue(COLUMN_FAMILY, AGE));
 
        City dto = new City();
        dto.setCityName(name);
        dto.setAge(age);
        return dto;
    }
}
5、操作实现增改查
  • HbaseTemplate.find 返回 HBase 映射的 City 列表
  • HbaseTemplate.get 返回 row 对应的 City 信息
  • HbaseTemplate.saveOrUpdates 保存或者更新
    如果 HbaseTemplate 操作不满足需求，完全可以使用 hbaseTemplate 的getConnection() 方法，获取连接。进而类似 HbaseTemplate 实现的逻辑，实现更复杂的需求查询等功能
java 复制代码 
@Service
public class CityServiceImpl implements CityService {
 
    @Autowired private HbaseTemplate hbaseTemplate;
 	//查询
    public List<City> query(String startRow, String stopRow) {
        Scan scan = new Scan(Bytes.toBytes(startRow), Bytes.toBytes(stopRow));
        scan.setCaching(5000);
        List<City> dtos = this.hbaseTemplate.find("people_table", scan, new CityRowMapper());
        return dtos;
    }
 	//查询
    public City query(String row) {
        City dto = this.hbaseTemplate.get("people_table", row, new CityRowMapper());
        return dto;
    }
 	//新增或者更新
    public void saveOrUpdate() {
        List<Mutation> saveOrUpdates = new ArrayList<Mutation>();
        Put            put           = new Put(Bytes.toBytes("135xxxxxx"));
        put.addColumn(Bytes.toBytes("people"), Bytes.toBytes("name"), Bytes.toBytes("test"));
        saveOrUpdates.add(put);
        this.hbaseTemplate.saveOrUpdates("people_table", saveOrUpdates);
    }
}

Springboot整合Influxdb

中文文档：https://jasper-zhang1.gitbooks.io/influxdb/content/Introduction/installation.html

注意，项目建立在spring-boot-web基础上

1、添加依赖
xml 复制代码 
<dependency>
    <groupId>org.influxdb</groupId>
    <artifactId>influxdb-java</artifactId>
    <version>2.15</version>
</dependency>
2、添加配置
yaml 复制代码 
spring:
  influx:
    database: my_sensor1
    password: admin
    url: http://127.0.0.1:6086
    user: admin
3、编写配置类
java 复制代码 
@Configuration
public class InfluxdbConfig {
        
    @Value("${spring.influx.url}")
    private String influxDBUrl; 

    @Value("${spring.influx.user}")
    private String userName;    

    @Value("${spring.influx.password}")
    private String password;    

    @Value("${spring.influx.database}")
    private String database;    

    @Bean("influxDB")
    public InfluxDB influxdb(){     
        InfluxDB influxDB = InfluxDBFactory.connect(influxDBUrl, userName, password);
        try {
            
            /** 
             * 异步插入：
             * enableBatch这里第一个是point的个数，第二个是时间，单位毫秒    
             * point的个数和时间是联合使用的，如果满100条或者60 * 1000毫秒   
             * 满足任何一个条件就会发送一次写的请求。
             */
            influxDB.setDatabase(database).enableBatch(100,1000 * 60, TimeUnit.MILLISECONDS);
            
        } catch (Exception e) { 
            e.printStackTrace();
        } finally { 
            //设置默认策略
            influxDB.setRetentionPolicy("sensor_retention");    
        }
        //设置日志输出级别
        influxDB.setLogLevel(InfluxDB.LogLevel.BASIC);  
        return influxDB;
    }
}
4、InfluxDB原生API实现
java 复制代码 
@SpringBootTest(classes = {MainApplication.class})
@RunWith(SpringJUnit4ClassRunner.class)
public class InfluxdbDBTest {

    @Autowired
    private InfluxDB influxDB;
    
    //measurement
    private final String measurement = "sensor";
    
    @Value("${spring.influx.database}")
    private String database;
    
    /**
     * 批量插入第一种方式
     */
    @Test
    public void insert(){
        List<String> lines = new ArrayList<String>();       
        Point point = null;     
        for(int i=0;i<50;i++){          
            point = Point.measurement(measurement)
            .tag("deviceId", "sensor" + i)
            .addField("temp", 3)
            .addField("voltage", 145+i)
            .addField("A1", "4i")
            .addField("A2", "4i").build();
            lines.add(point.lineProtocol());
        }
        //写入
        influxDB.write(lines);
    }
    
    /**
     * 批量插入第二种方式
     */
    @Test
    public void batchInsert(){
        BatchPoints batchPoints = BatchPoints
                .database(database)
                .consistency(InfluxDB.ConsistencyLevel.ALL)
                .build();
      //遍历sqlserver获取数据
      for(int i=0;i<50;i++){
        //创建单条数据对象------表名
        Point point = Point.measurement(measurement)
          //tag属性------只能存储String类型
                .tag("deviceId", "sensor" + i)
                .addField("temp", 3)
                .addField("voltage", 145+i)
                .addField("A1", "4i")
                .addField("A2", "4i").build();
        //将单条数据存储到集合中
        batchPoints.point(point);
      }
      //批量插入
      influxDB.write(batchPoints); 
    }
    
    /**
     * 获取数据
     */
    @Test
    public void datas(@RequestParam Integer page){
        int pageSize = 10;
        // InfluxDB支持分页查询,因此可以设置分页查询条件
        String pageQuery = " LIMIT " + pageSize + " OFFSET " + (page - 1) * pageSize;
        
        String queryCondition = "";  //查询条件暂且为空
        // 此处查询所有内容,如果
        String queryCmd = "SELECT * FROM "
            // 查询指定设备下的日志信息
            // 要指定从 RetentionPolicyName.measurement中查询指定数据,默认的策略可以不加；
            // + 策略name + "." + measurement
            + measurement
            // 添加查询条件(注意查询条件选择tag值,选择field数值会严重拖慢查询速度)
            + queryCondition
            // 查询结果需要按照时间排序
            + " ORDER BY time DESC"
            // 添加分页查询条件
            + pageQuery;
        
        QueryResult queryResult = influxDB.query(new Query(queryCmd, database));
        System.out.println("query result => "+queryResult);
    }
}
5、采用封装工具类
1、创建实体类
java 复制代码 
@Data
@Measurement(name = "sensor")
public class Sensor {

    @Column(name="deviceId",tag=true)
    private String deviceId;
    
    @Column(name="temp")
    private float temp;
    
    @Column(name="voltage")
    private float voltage;
    
    @Column(name="A1")
    private float A1;
    
    @Column(name="A2")
    private float A2;
    
    @Column(name="time")
    private String time;    
    
}
2、创建工具类
java 复制代码 
@Component
public class InfluxdbUtils {

    @Autowired
    private InfluxDB influxDB;
    
    @Value("${spring.influx.database}")
    private String database;    
    
    /**
     * 新增单条记录,利用java的反射机制进行新增操作
     */
    @SneakyThrows
    public void insertOne(Object obj){
        //获取度量
        Class<?> clasz = obj.getClass();
        Measurement measurement = clasz.getAnnotation(Measurement.class);
        //构建
        Point.Builder builder = Point.measurement(measurement.name());
        // 获取对象属性
        Field[] fieldArray = clasz.getDeclaredFields();
        Column column = null;
        for(Field field : fieldArray){
                column = field.getAnnotation(Column.class);
                //设置属性可操作
                field.setAccessible(true); 
                if(column.tag()){
                    //tag属性只能存储String类型
                    builder.tag(column.name(), field.get(obj).toString());
                }else{
                    //设置field
                    if(field.get(obj) != null){
                        builder.addField(column.name(), field.get(obj).toString());
                    }
                }
        }
        influxDB.write(builder.build());
    }
    
    /**
     * 批量新增,方法一
     */
    @SneakyThrows
    public void insertBatchByRecords(List<?> records){
        List<String> lines = new ArrayList<String>();   
        records.forEach(record->{
            Class<?> clasz = record.getClass();
            //获取度量
            Measurement measurement = clasz.getAnnotation(Measurement.class);
            //构建
            Point.Builder builder = Point.measurement(measurement.name());
            Field[] fieldArray = clasz.getDeclaredFields();
            Column column = null;
            for(Field field : fieldArray){
                    column = field.getAnnotation(Column.class);
                    //设置属性可操作
                    field.setAccessible(true); 
                    if(column.tag()){
                        //tag属性只能存储String类型
                        builder.tag(column.name(), field.get(record).toString());
                    }else{
                        //设置field
                        if(field.get(record) != null){
                            builder.addField(column.name(), field.get(record).toString());
                        }
                    }
            }
            lines.add(builder.build().lineProtocol());
        });
        influxDB.write(lines);
    }
    
    /**
     * 批量新增，方法二
     */
    @SneakyThrows
    public void insertBatchByPoints(List<?> records){
        BatchPoints batchPoints = BatchPoints.database(database)
                .consistency(InfluxDB.ConsistencyLevel.ALL)
                .build();
        records.forEach(record->{
            Class<?> clasz = record.getClass();
            //获取度量
            Measurement measurement = clasz.getAnnotation(Measurement.class);
            //构建
            Point.Builder builder = Point.measurement(measurement.name());
            Field[] fieldArray = clasz.getDeclaredFields();
            Column column = null;
            for(Field field : fieldArray){
                    column = field.getAnnotation(Column.class);
                    //设置属性可操作
                    field.setAccessible(true); 
                    if(column.tag()){
                        //tag属性只能存储String类型
                        builder.tag(column.name(), field.get(record).toString());
                    }else{
                        //设置field
                        if(field.get(record) != null){
                            builder.addField(column.name(), field.get(record).toString());
                        }
                    }
            }
            batchPoints.point(builder.build());
        });
        influxDB.write(batchPoints);
    }
    
    /**
     * 查询，返回Map集合
     * @param query 完整的查询语句
     */
    public List<Object> fetchRecords(String query){
        List<Object> results = new ArrayList<Object>();
        QueryResult queryResult = influxDB.query(new Query(query, database));
        queryResult.getResults().forEach(result->{
            result.getSeries().forEach(serial->{
                List<String> columns = serial.getColumns();
                int fieldSize = columns.size();
                serial.getValues().forEach(value->{     
                    Map<String,Object> obj = new HashMap<String,Object>();
                    for(int i=0;i<fieldSize;i++){   
                        obj.put(columns.get(i), value.get(i));
                    }
                    results.add(obj);
                });
            });
        });
        return results;
    }
    
    /**
     * 查询，返回map集合
     * @param fieldKeys 查询的字段，不可为空；不可为单独的tag
     * @param measurement 度量，不可为空；
     */
    public List<Object> fetchRecords(String fieldKeys, String measurement){
        StringBuilder query = new StringBuilder();
        query.append("select ").append(fieldKeys).append(" from ").append(measurement);     
        return this.fetchRecords(query.toString());
    }
    
    /**
     * 查询，返回map集合
     * @param fieldKeys 查询的字段，不可为空；不可为单独的tag
     * @param measurement 度量，不可为空；
     */
    public List<Object> fetchRecords(String fieldKeys, String measurement, String order){
        StringBuilder query = new StringBuilder();
        query.append("select ").append(fieldKeys).append(" from ").append(measurement);
        query.append(" order by ").append(order);       
        return this.fetchRecords(query.toString());
    }
    
    /**
     * 查询，返回map集合
     * @param fieldKeys 查询的字段，不可为空；不可为单独的tag
     * @param measurement 度量，不可为空；
     */
    public List<Object> fetchRecords(String fieldKeys, String measurement, String order, String limit){
        StringBuilder query = new StringBuilder();
        query.append("select ").append(fieldKeys).append(" from ").append(measurement);
        query.append(" order by ").append(order);
        query.append(limit);
        return this.fetchRecords(query.toString());
    }
    
    /**
     * 查询，返回对象的list集合
     */
    @SneakyThrows
    public <T> List<T> fetchResults(String query, Class<?> clasz){
        List results = new ArrayList<>();
        QueryResult queryResult = influxDB.query(new Query(query, database));
        queryResult.getResults().forEach(result->{
            result.getSeries().forEach(serial->{
                List<String> columns = serial.getColumns();
                int fieldSize = columns.size();     
                serial.getValues().forEach(value->{ 
                    Object obj = null;
                        obj = clasz.newInstance();
                        for(int i=0;i<fieldSize;i++){   
                            String fieldName = columns.get(i);
                            Field field = clasz.getDeclaredField(fieldName);
                            field.setAccessible(true);
                            Class<?> type = field.getType();
                            if(type == float.class){
                                field.set(obj, Float.valueOf(value.get(i).toString()));
                            }else{
                                field.set(obj, value.get(i));
                            }                           
                        }
                    results.add(obj);
                });
            });
        });
        return results;
    }
    
    /**
     * 查询，返回对象的list集合
     */
    public <T> List<T> fetchResults(String fieldKeys, String measurement, Class<?> clasz){
        StringBuilder query = new StringBuilder();
        query.append("select ").append(fieldKeys).append(" from ").append(measurement);     
        return this.fetchResults(query.toString(), clasz);
    }
    
    /**
     * 查询，返回对象的list集合
     */
    public <T> List<T> fetchResults(String fieldKeys, String measurement, String order, Class<?> clasz){
        StringBuilder query = new StringBuilder();
        query.append("select ").append(fieldKeys).append(" from ").append(measurement);
        query.append(" order by ").append(order);
        return this.fetchResults(query.toString(), clasz);
    }
    
    /**
     * 查询，返回对象的list集合
     */
    public <T> List<T> fetchResults(String fieldKeys, String measurement, String order, String limit, Class<?> clasz){
        StringBuilder query = new StringBuilder();
        query.append("select ").append(fieldKeys).append(" from ").append(measurement);
        query.append(" order by ").append(order);
        query.append(limit);        
        return this.fetchResults(query.toString(), clasz);
    }
}
3、使用工具类的测试代码
java 复制代码 
@SpringBootTest(classes = {MainApplication.class})
@RunWith(SpringJUnit4ClassRunner.class)
public class InfluxdbUtilTest {

    @Autowired
    private InfluxdbUtils influxdbUtils;
    
    /**
     * 插入单条记录
     */
    @Test
    public void insert(){
      Sensor sensor = new Sensor();
      sensor.setA1(10);
      sensor.setA2(10);
      sensor.setDeviceId("0002");
      sensor.setTemp(10L);
      sensor.setTime("2021-01-19");
      sensor.setVoltage(10);
      influxdbUtils.insertOne(sensor);
    }
    
    /**
     * 批量插入第一种方式
     */
    @GetMapping("/index22")
    public void batchInsert(){  
        List<Sensor> sensorList = new ArrayList<Sensor>();
        for(int i=0; i<50; i++){
            Sensor sensor = new Sensor();
            sensor.setA1(2);
            sensor.setA2(12);
            sensor.setTemp(9);
            sensor.setVoltage(12);
            sensor.setDeviceId("sensor4545-"+i);
            sensorList.add(sensor);
        }
        influxdbUtils.insertBatchByRecords(sensorList);
    }
    
    /**
     * 批量插入第二种方式
     */
    @GetMapping("/index23")
    public void batchInsert1(){ 
        List<Sensor> sensorList = new ArrayList<Sensor>();
        Sensor sensor = null;
        for(int i=0; i<50; i++){
            sensor = new Sensor();
            sensor.setA1(2);
            sensor.setA2(12);
            sensor.setTemp(9);
            sensor.setVoltage(12);
            sensor.setDeviceId("sensor4545-"+i);
            sensorList.add(sensor);
        }
        influxdbUtils.insertBatchByPoints(sensorList);
    }
        
    /**
     * 查询数据
     */
    @GetMapping("/datas2")
    public void datas(@RequestParam Integer page){
        int pageSize = 10;
        // InfluxDB支持分页查询,因此可以设置分页查询条件
        String pageQuery = " LIMIT " + pageSize + " OFFSET " + (page - 1) * pageSize;
        
        String queryCondition = "";  //查询条件暂且为空
        // 此处查询所有内容,如果
        String queryCmd = "SELECT * FROM sensor"
            // 查询指定设备下的日志信息
            // 要指定从 RetentionPolicyName.measurement中查询指定数据,默认的策略可以不加；
            // + 策略name + "." + measurement
            // 添加查询条件(注意查询条件选择tag值,选择field数值会严重拖慢查询速度)
            + queryCondition
            // 查询结果需要按照时间排序
            + " ORDER BY time DESC"
            // 添加分页查询条件
            + pageQuery;
        
        List<Object> sensorList = influxdbUtils.fetchRecords(queryCmd);
        System.out.println("query result => {}"+sensorList );
    }
    
    /**
     * 获取数据
     */
    @GetMapping("/datas21")
    public void datas1(@RequestParam Integer page){
        int pageSize = 10;
        // InfluxDB支持分页查询,因此可以设置分页查询条件
        String pageQuery = " LIMIT " + pageSize + " OFFSET " + (page - 1) * pageSize;
        
        String queryCondition = "";  //查询条件暂且为空
        // 此处查询所有内容,如果
        String queryCmd = "SELECT * FROM sensor"
            // 查询指定设备下的日志信息
            // 要指定从 RetentionPolicyName.measurement中查询指定数据,默认的策略可以不加；
            // + 策略name + "." + measurement
            // 添加查询条件(注意查询条件选择tag值,选择field数值会严重拖慢查询速度)
            + queryCondition
            // 查询结果需要按照时间排序
            + " ORDER BY time DESC"
            // 添加分页查询条件
            + pageQuery;
        List<Sensor> sensorList = influxdbUtils.fetchResults(queryCmd, Sensor.class);
        //List<Sensor> sensorList = influxdbUtils.fetchResults("*", "sensor", Sensor.class);
        sensorList.forEach(sensor->{
            System.out.println("query result => {}"+sensorList );
        });     
    }
}
6、采用封装数据模型的方式
1、在Influxdb库中创建存储策略
sql 复制代码 
CREATE RETENTION POLICY "rp_order_payment" ON "db_order" DURATION 30d REPLICATION 1 DEFAULT
2、创建数据模型
java 复制代码 
@Data
@Measurement(name = "m_order_payment",
		database = "db_order", 
		retentionPolicy = "rp_order_payment")
public class OrderPayment implements Serializable  {

    // 统计批次
    @Column(name = "batch_id", tag = true)
    private String batchId;

    // 哪个BU
    @Column(name = "bu_id", tag = true)
    private String buId;

    // BU 名称
    @Column(name = "bu_name")
    private String buName;

    // 总数
    @Column(name = "total_count", tag = true)
    private String totalCount;

    // 支付量
    @Column(name = "pay_count", tag = true)
    private String payCount;

    // 金额
    @Column(name = "total_money", tag = true)
    private String totalMoney;
}
3、创建Mapper
java 复制代码 
public class InfluxMapper extends InfluxDBMapper {

    public InfluxMapper(InfluxDB influxDB) {
        super(influxDB);
    }
}
4、配置Mapper
java 复制代码 
@Log4j2
@Configuration
public class InfluxAutoConfiguration {

    @Bean
    public InfluxMapper influxMapper(InfluxDB influxDB) {
        InfluxMapper influxMapper = new InfluxMapper(influxDB);
        return influxMapper;
    }
}
5、测试CRUD
java 复制代码 
@SpringBootTest(classes = {MainApplication.class})
@RunWith(SpringJUnit4ClassRunner.class)
public class InfluxdbMapperTest {


    @Autowired
    private InfluxMapper influxMapper;


    @Test
    public void save(OrderPayment product) {
        influxMapper.save(product);
    }
    @Test
    public void queryAll() {
        List<OrderPayment> products = influxMapper.query(OrderPayment.class);
        System.out.println(products);
    }

    @Test
    public void queryByBu(String bu) {
        String sql = String.format("%s'%s'", "select * from m_order_payment where bu_id = ", bu);
        Query query = new Query(sql, "db_order");
        List<OrderPayment> products = influxMapper.query(query, OrderPayment.class);
        System.out.println(products);
    }
}

参考：https://blog.csdn.net/cpongo1/article/details/89550486

https://github.com/SpringForAll/spring-boot-starter-hbase

https://github.com/JeffLi1993/springboot-learning-example

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