Springboot 连接Hbase实例

需要配置hbase-site.xml：

    hbase.rootdir
    hdfs://主机1（zhz100）:9000/hbase




    hbase.cluster.distributed

    true





    hbase.master

    主机名（zhz100）:60000





    hbase.zookeeper.property.dataDir

    /usr/java/zookeeper3.4.10/temp





    hbase.zookeeper.quorum

    主机1（zhz100）,主机2,主机3





    hbase.zookeeper.property.clientPort

    2181

配置application.yml:

server:
port: 8080
hbase:
conf:
    confMaps:
    'hbase.zookeeper.quorum' : 'IP地址1:2181,IP地址2:2181'

pom.xml 引入的依赖:

org.apache.hbase
hbase-client
1.2.0


org.slf4j
slf4j-log4j12




org.springframework.data
spring-data-hadoop
2.5.0.RELEASE


org.apache.hadoop
hadoop-hdfs
2.5.1


org.springframework.data
spring-data-hadoop-core
2.4.0.RELEASE


org.apache.hbase
hbase
1.2.1
pom

HbaseDemo 对hbase数据库进行操作：

public class HbaseDemo{
private static Configuration conf = HBaseConfiguration.create();
private static Admin admin;
  static {
    conf.set("hbase.rootdir", "hdfs://node1:9000/hbase");
    // 设置Zookeeper,直接设置IP地址
    conf.set("hbase.zookeeper.quorum", "主机1（zhz100）,主机2,主机3");
    try {
        Connection connection = ConnectionFactory.createConnection(conf);
        admin = connection.getAdmin();
    } catch (IOException e) {
        e.printStackTrace();
    }
}


/**
 * 创建表，可以同时创建多个列簇
 *
 * @param tableName
 * @param columnFamily
 */

public static void createTable(String tableName, String... columnFamily) {

    TableName tableNameObj = TableName.valueOf(tableName);
    try {
        if (admin.tableExists(tableNameObj)) {
            System.out.println("Table : " + tableName + " already exists !");
        } else {
            HTableDescriptor td = new HTableDescriptor(tableNameObj);
            int len = columnFamily.length;
            for (int i = 0; i < len; i++) {
                HColumnDescriptor family = new HColumnDescriptor(columnFamily[i]);
                td.addFamily(family);
            }
            admin.createTable(td);
            System.out.println(tableName + " 表创建成功！");
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println(tableName + " 表创建失败！");
    }

}

/*
* 创建表：cross_history 在测试类中测试：Demo2ApplicationTests
* */
@Test
public void testCreateTable() {
HbaseDemo.createTable(“dr_ps_20181112”, “trademark” , “dr_type” , “service_id” }

 /**
 * 删除表
 *
 */

public void delTable(String tableName) {
    TableName tableNameObj = TableName.valueOf(tableName);
    try {
        if (this.admin.tableExists(tableNameObj)) {
            admin.disableTable(tableNameObj);
            admin.deleteTable(tableNameObj);
            System.out.println(tableName + " 表删除成功！");
        } else {
            System.out.println(tableName + " 表不存在！");
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println(tableName + " 表删除失败！");
    }
}


 /*
    *插入数据 
    * */
public static void insertRecord(String tableName, String rowKey, String columnFamily, String qualifier, String value) {
    try {
        Connection connection = ConnectionFactory.createConnection(conf);
        Table table = connection.getTable(TableName.valueOf(tableName));
        Put put = new Put(rowKey.getBytes());
        put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes(qualifier),                                                                  Bytes.toBytes(value));
        table.put(put);
        table.close();
        connection.close();
        System.out.println(tableName + " 表插入数据成功！");
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println(tableName + " 表插入数据失败！");
    }
}

 /*
* 根据KEYROW删除表中的数据
* */
public static void deleteRecord(String tableName, String rowKey) {
    try {
        Connection connection = ConnectionFactory.createConnection(conf);
        Table table = connection.getTable(TableName.valueOf(tableName));
        Delete del = new Delete(rowKey.getBytes());
        table.delete(del);
        System.out.println(tableName + " 表删除数据成功！");
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println(tableName + " 表删除数据失败！");
    }
}

/*
* 根据表名字获取所有数据
* */
public static List getAll(String tableName) {
    try {
        Connection connection = ConnectionFactory.createConnection(conf);
        Table table = connection.getTable(TableName.valueOf(tableName));
        Scan scan = new Scan();
        ResultScanner scanner = table.getScanner(scan);
        List list = new ArrayList();
        for (Result r : scanner) {
            list.add(r);
        }
        scanner.close();
        System.out.println(tableName + " 表获取所有记录成功！");
        return list;
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

// 删除表
public static void deleteTable(String tableName) {
    try {
        Connection connection = ConnectionFactory.createConnection(conf);
        Admin admin = connection.getAdmin();
        TableName table = TableName.valueOf(tableName);
        admin.disableTable(table);//使表失效
        admin.deleteTable(table);//删除表
        System.out.println("delete table " + tableName + " ok.");
    } catch (IOException e) {
        e.printStackTrace();
    }

}

注*此为项目中部分代码，出现问题可以联系我[email protected]，大家共同探讨。