聊聊springboot 整合 hbase的问题
作者：不想做咸鱼的王富贵
这篇文章主要介绍了springboot 整合 hbase的问题，文中给大家提到配置linux服务器hosts及配置window hosts的相关知识,需要的朋友可以参考下
springboot 整合 hbase
要确定这三个端口外包可以访问
如果是127.0.0.1 可以参考修改
Linux下Hbase安装配置
<property> <name>hbase.master.ipc.address</name> <value>0.0.0.0</value> </property> <property> <name>hbase.regionserver.ipc.address</name> <value>0.0.0.0</value> </property>
配置linux服务器hosts
vim /etc/hosts
127.0.0.1 VM-16-8-centos VM-16-8-centos 127.0.0.1 localhost.localdomain localhot 127.0.0.1 localhost6.localdomain6 localhost6 ip vm-16-8-centos
配置window hosts
ip vm-16-8-centos
项目结构
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.hbase</groupId>
<artifactId>hbase</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>hbase</name>
<description>springBoot_hBase Demo</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--HBase -->
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-client</artifactId>
<version>2.4.7</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.4</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
HbaseConfig
package com.springboot.hbase.config.hbase;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import java.util.Map;
/**
* Hbase配置类
* @author sixmonth
* @Date 2019年5月13日
*
*/
@Configuration
@ConfigurationProperties(prefix = HbaseConfig.CONF_PREFIX)
public class HbaseConfig {
public static final String CONF_PREFIX = "hbase.conf";
private Map<String,String> confMaps;
public Map<String, String> getconfMaps() {
return confMaps;
}
public void setconfMaps(Map<String, String> confMaps) {
this.confMaps = confMaps;
}
}
HBaseUtils
package com.springboot.hbase.config.hbase;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.client.coprocessor.LongColumnInterpreter;
import org.apache.hadoop.hbase.filter.*;
import org.apache.hadoop.hbase.util.Bytes;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.DependsOn;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.NavigableMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* hbase工具类
* @author sixmonth
* @Date 2019年5月13日
*
*/
@DependsOn("springContextHolder")//控制依赖顺序，保证springContextHolder类在之前已经加载
@Component
public class HBaseUtils {
private Logger logger = LoggerFactory.getLogger(this.getClass());
//手动获取hbaseConfig配置类对象
private static HbaseConfig hbaseConfig = SpringContextHolder.getBean("hbaseConfig");
private static Configuration conf = HBaseConfiguration.create();
private static ExecutorService pool = Executors.newScheduledThreadPool(20); //设置hbase连接池
private static Connection connection = null;
private static HBaseUtils instance = null;
private static Admin admin = null;
private HBaseUtils(){
if(connection == null){
try {
//将hbase配置类中定义的配置加载到连接池中每个连接里
Map<String, String> confMap = hbaseConfig.getconfMaps();
for (Map.Entry<String,String> confEntry : confMap.entrySet()) {
conf.set(confEntry.getKey(), confEntry.getValue());
}
connection = ConnectionFactory.createConnection(conf, pool);
admin = connection.getAdmin();
} catch (IOException e) {
logger.error("HbaseUtils实例初始化失败！错误信息为：" + e.getMessage(), e);
}
}
}
//简单单例方法，如果autowired自动注入就不需要此方法
public static synchronized HBaseUtils getInstance(){
if(instance == null){
instance = new HBaseUtils();
}
return instance;
}
/**
* 创建表
*
* @param tableName 表名
* @param columnFamily 列族（数组）
*/
public void createTable(String tableName, String[] columnFamily) throws IOException{
TableName name = TableName.valueOf(tableName);
//如果存在则删除
if (admin.tableExists(name)) {
admin.disableTable(name);
admin.deleteTable(name);
logger.error("create htable error! this table {} already exists!", name);
} else {
HTableDescriptor desc = new HTableDescriptor(name);
for (String cf : columnFamily) {
desc.addFamily(new HColumnDescriptor(cf));
}
admin.createTable(desc);
}
}
/**
* 插入记录（单行单列族-多列多值）
*
* @param tableName 表名
* @param row 行名
* @param columnFamilys 列族名
* @param columns 列名（数组）
* @param values 值（数组）（且需要和列一一对应）
*/
public void insertRecords(String tableName, String row, String columnFamilys, String[] columns, String[] values) throws IOException {
TableName name = TableName.valueOf(tableName);
Table table = connection.getTable(name);
Put put = new Put(Bytes.toBytes(row));
for (int i = 0; i < columns.length; i++) {
put.addColumn(Bytes.toBytes(columnFamilys), Bytes.toBytes(columns[i]), Bytes.toBytes(values[i]));
table.put(put);
}
}
/**
* 插入记录（单行单列族-单列单值）
*
* @param tableName 表名
* @param row 行名
* @param columnFamily 列族名
* @param column 列名
* @param value 值
*/
public void insertOneRecord(String tableName, String row, String columnFamily, String column, String value) throws IOException {
TableName name = TableName.valueOf(tableName);
Table table = connection.getTable(name);
Put put = new Put(Bytes.toBytes(row));
put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes(column), Bytes.toBytes(value));
table.put(put);
}
/**
* 删除一行记录
*
* @param tablename 表名
* @param rowkey 行名
*/
public void deleteRow(String tablename, String rowkey) throws IOException {
TableName name = TableName.valueOf(tablename);
Table table = connection.getTable(name);
Delete d = new Delete(rowkey.getBytes());
table.delete(d);
}
/**
* 删除单行单列族记录
* @param tablename 表名
* @param rowkey 行名
* @param columnFamily 列族名
*/
public void deleteColumnFamily(String tablename, String rowkey, String columnFamily) throws IOException {
TableName name = TableName.valueOf(tablename);
Table table = connection.getTable(name);
Delete d = new Delete(rowkey.getBytes()).addFamily(Bytes.toBytes(columnFamily));
table.delete(d);
}
/**
* 删除单行单列族单列记录
*
* @param tablename 表名
* @param rowkey 行名
* @param columnFamily 列族名
* @param column 列名
*/
public void deleteColumn(String tablename, String rowkey, String columnFamily, String column) throws IOException {
TableName name = TableName.valueOf(tablename);
Table table = connection.getTable(name);
Delete d = new Delete(rowkey.getBytes()).addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes(column));
table.delete(d);
}
/**
* 查找一行记录
*
* @param tablename 表名
* @param rowKey 行名
*/
public static String selectRow(String tablename, String rowKey) throws IOException {
String record = "";
TableName name=TableName.valueOf(tablename);
Table table = connection.getTable(name);
Get g = new Get(rowKey.getBytes());
Result rs = table.get(g);
NavigableMap<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>> map = rs.getMap();
for (Cell cell : rs.rawCells()) {
StringBuffer stringBuffer = new StringBuffer()
.append(Bytes.toString(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength())).append("\t")
.append(Bytes.toString(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength())).append("\t")
.append(Bytes.toString(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength())).append("\t")
.append(Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength())).append("\n");
String str = stringBuffer.toString();
record += str;
}
return record;
}
/**
* 查找单行单列族单列记录
*
* @param tablename 表名
* @param rowKey 行名
* @param columnFamily 列族名
* @param column 列名
* @return
*/
public static String selectValue(String tablename, String rowKey, String columnFamily, String column) throws IOException {
TableName name=TableName.valueOf(tablename);
Table table = connection.getTable(name);
Get g = new Get(rowKey.getBytes());
g.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes(column));
Result rs = table.get(g);
return Bytes.toString(rs.value());
}
/**
* 查询表中所有行（Scan方式）
*
* @param tablename
* @return
*/
public String scanAllRecord(String tablename) throws IOException {
String record = "";
TableName name=TableName.valueOf(tablename);
Table table = connection.getTable(name);
Scan scan = new Scan();
ResultScanner scanner = table.getScanner(scan);
try {
for(Result result : scanner){
for (Cell cell : result.rawCells()) {
StringBuffer stringBuffer = new StringBuffer()
.append(Bytes.toString(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength())).append("\t")
.append(Bytes.toString(cell.getFamilyArray(), cell.getFamilyOffset(), cell.getFamilyLength())).append("\t")
.append(Bytes.toString(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength())).append("\t")
.append(Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength())).append("\n");
String str = stringBuffer.toString();
record += str;
}
}
} finally {
if (scanner != null) {
scanner.close();
}
}
return record;
}
/**
* 根据rowkey关键字查询报告记录
*
* @param tablename
* @param rowKeyword
* @return
*/
public List scanReportDataByRowKeyword(String tablename, String rowKeyword) throws IOException {
ArrayList<Object> list = new ArrayList<Object>();
Table table = connection.getTable(TableName.valueOf(tablename));
Scan scan = new Scan();
//添加行键过滤器，根据关键字匹配
RowFilter rowFilter = new RowFilter(CompareFilter.CompareOp.EQUAL, new SubstringComparator(rowKeyword));
scan.setFilter(rowFilter);
ResultScanner scanner = table.getScanner(scan);
try {
for (Result result : scanner) {
//TODO 此处根据业务来自定义实现
list.add(null);
}
} finally {
if (scanner != null) {
scanner.close();
}
}
return list;
}
/**
* 根据rowkey关键字和时间戳范围查询报告记录
*
* @param tablename
* @param rowKeyword
* @return
*/
public List scanReportDataByRowKeywordTimestamp(String tablename, String rowKeyword, Long minStamp, Long maxStamp) throws IOException {
ArrayList<Object> list = new ArrayList<Object>();
Table table = connection.getTable(TableName.valueOf(tablename));
Scan scan = new Scan();
//添加scan的时间范围
scan.setTimeRange(minStamp, maxStamp);
RowFilter rowFilter = new RowFilter(CompareFilter.CompareOp.EQUAL, new SubstringComparator(rowKeyword));
scan.setFilter(rowFilter);
ResultScanner scanner = table.getScanner(scan);
try {
for (Result result : scanner) {
//TODO 此处根据业务来自定义实现
list.add(null);
}
} finally {
if (scanner != null) {
scanner.close();
}
}
return list;
}
/**
* 删除表操作
*
* @param tablename
*/
public void deleteTable(String tablename) throws IOException {
TableName name=TableName.valueOf(tablename);
if(admin.tableExists(name)) {
admin.disableTable(name);
admin.deleteTable(name);
}
}
}
SpringContextHolder
package com.springboot.hbase.config.hbase;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
* Spring的ApplicationContext的持有者，可以用静态方法的方式获取spring容器中的bean
*/
@Component
public class SpringContextHolder implements ApplicationContextAware {
private static ApplicationContext applicationContext;
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
SpringContextHolder.applicationContext = applicationContext;
}
public static ApplicationContext getApplicationContext() {
assertApplicationContext();
return applicationContext;
}
@SuppressWarnings("unchecked")
public static <T> T getBean(String beanName) {
assertApplicationContext();
return (T) applicationContext.getBean(beanName);
}
public static <T> T getBean(Class<T> requiredType) {
assertApplicationContext();
return applicationContext.getBean(requiredType);
}
private static void assertApplicationContext() {
if (SpringContextHolder.applicationContext == null) {
throw new RuntimeException("applicaitonContext属性为null,请检查是否注入了SpringContextHolder!");
}
}
}
application.properties
hbase.conf.confMaps.hbase.zookeeper.quorum= vm-16-8-centos:2181
HBaseApplicationTests
package com.springboot.hbase;
import com.springboot.hbase.config.hbase.HBaseUtils;
import lombok.extern.log4j.Log4j2;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import javax.annotation.Resource;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
@SpringBootTest
@Log4j2
class HBaseApplicationTests {
@Autowired
private HBaseUtils hBaseUtils;
@Test
void deleteTable() throws IOException {
Map<String,Object> map = new HashMap<String,Object>();
try {
String str = hBaseUtils.scanAllRecord("SYSTEM.TASK");//扫描表
System.out.println("获取到hbase的内容："+str);
map.put("hbaseContent",str);
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(map);
}
}
执行测试类
成功如下
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