1、打开前面创建的项目“BigData-Etl-KongGuan”,创建一些数据库访问的工具类和辅助类。
1)打开SpringBoot项目:BigData-Etl-KongGuan
2)创建数据库访问的工具类和辅助类:
com.qrsoft.etl.dao.IBaseDao数据库访问的通用类,包括创建连接、执行更新等通用操作com.qrsoft.etl.common.db.ConnectionPoolManager连接管理类com.qrsoft.etl.common.db.IConnectionPool连接池管理类接口com.qrsoft.etl.common.db.ConnectionPool连接池管理类接口实现类com.qrsoft.etl.common.db.DBbean这是外部可以配置的连接池属性 可以允许外部配置,拥有默认值com.qrsoft.etl.common.db.DBInitInfo初始化,模拟加载所有的配置文件com.qrsoft.etl.common.Constants全局常量类com.qrsoft.etl.util.ConfigUtil加载配置文件的工具类com.qrsoft.etl.util.ConfigManager配置文件管理的工具类com.qrsoft.etl.util.MapManager地图管理的工具类,例如:是否在矩形区域内
- 创建com.qrsoft.etl.util.ConfigUtil类,该类是一个通用工具类,用于加载myconfig.properties配置文件,并提供了一个根据键来读取配置文件中属性值的方法readProperty(key)。
package com.qrsoft.etl.util;
import org.springframework.core.io.support.PropertiesLoaderUtils;
import java.io.IOException;
import java.util.Properties;
public class ConfigUtil {
public static String readProperty(String key){
Properties properties = new Properties();
try {
properties = PropertiesLoaderUtils.loadAllProperties("myconfig.properties");
} catch (IOException e) {
e.printStackTrace();
}
return properties.get(key).toString();
}
}
- 创建com.qrsoft.etl.util.ConfigManager类,该类是一个通用工具类,用于配置文件管理,在该类的构造函数中加载config.properties配置文件,并提供了一个根据键来读取配置文件中属性值的方法getValue(key)。
package com.qrsoft.etl.util;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
public class ConfigManager {
private static ConfigManager configManager; // 声明工具类的一个私有的对象
private static Properties properties; //声明对象
private ConfigManager() { //私有无参构造方法
String configFile = "config.properties";
properties = new Properties();
InputStream in = ConfigManager.class.getClassLoader().getResourceAsStream(configFile);
try {
properties.load(in);
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public static ConfigManager getInstance() {
if (configManager == null) {
configManager = new ConfigManager();
}
return configManager;
}
public String getValue(String key) {
return properties.getProperty(key);
}
}
- 创建com.qrsoft.etl.util.MapManager类,该类是地图管理的工具类,提供了地图操作的相关工具方法,例如:地图上某个经纬度的点是否在矩形区域内、判断是否在经纬度范围内等。
package com.qrsoft.etl.util;
public class MapManager {
/**
* 是否在矩形区域内
* @Title: isInArea
* @Description: TODO()
* @param lat 测试点经度
* @param lng 测试点纬度
* @param minLat 纬度范围限制1
* @param maxLat 纬度范围限制2
* @param minLng 经度限制范围1
* @param maxLng 经度范围限制2
* @return boolean
*/
public boolean isInRectangleArea(double lat,double lng,double minLat,
double maxLat,double minLng,double maxLng){
if(this.isInRange(lat, minLat, maxLat)){//如果在纬度的范围内
if(minLng*maxLng>0){
if(this.isInRange(lng, minLng, maxLng)){
return true;
}else {
return false;
}
}else {
if(Math.abs(minLng)+Math.abs(maxLng)<180){
if(this.isInRange(lng, minLng, maxLng)){
return true;
}else {
return false;
}
}else{
double left = Math.max(minLng, maxLng);
double right = Math.min(minLng, maxLng);
if(this.isInRange(lng, left, 180)||this.isInRange(lng, right,-180)){
return true;
}else {
return false;
}
}
}
}else{
return false;
}
}
/**
* 判断是否在经纬度范围内
*/
public boolean isInRange(double point, double left,double right){
if(point>=Math.min(left, right)&&point<=Math.max(left, right)){
return true;
}else {
return false;
}
}
}
- 创建com.qrsoft.etl.common.db.DBbean类,该类中定义了外部可以配置的连接池属性 可以允许外部配置,拥有默认值。
package com.qrsoft.etl.common.db;
public class DBbean {
// 连接池属性
private String driverName;
private String url;
private String userName;
private String password;
// 连接池名字
private String poolName;
private int minConnections = 10; // 空闲池,最小连接数
private int maxConnections = 300; // 空闲池,最大连接数
private int initConnections = 20;// 初始化连接数
private long connTimeOut = 1000;// 重复获得连接的频率
private int maxActiveConnections = 500;// 最大允许的连接数,和数据库对应
private long connectionTimeOut = 0;// 连接超时时间,默认20分钟
private boolean isCurrentConnection = true; // 是否获得当前连接,默认true
private boolean isCheakPool = true; // 是否定时检查连接池
private long lazyCheck = 1000 * 60 * 60;// 延迟多少时间后开始 检查
private long periodCheck = 1000 * 60 * 60;// 检查频率
public DBbean(String driverName, String url, String userName,String password, String poolName) {
super();
this.driverName = driverName;
this.url = url;
this.userName = userName;
this.password = password;
this.poolName = poolName;
}
public DBbean() {
}
public String getDriverName() {
if (driverName == null) {
driverName = this.getDriverName() + "_" + this.getUrl();
}
return driverName;
}
public void setDriverName(String driverName) {
this.driverName = driverName;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
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 getPoolName() {
return poolName;
}
public void setPoolName(String poolName) {
this.poolName = poolName;
}
public int getMinConnections() {
return minConnections;
}
public void setMinConnections(int minConnections) {
this.minConnections = minConnections;
}
public int getMaxConnections() {
return maxConnections;
}
public void setMaxConnections(int maxConnections) {
this.maxConnections = maxConnections;
}
public int getInitConnections() {
return initConnections;
}
public void setInitConnections(int initConnections) {
this.initConnections = initConnections;
}
public int getMaxActiveConnections() {
return maxActiveConnections;
}
public void setMaxActiveConnections(int maxActiveConnections) {
this.maxActiveConnections = maxActiveConnections;
}
public long getConnTimeOut() {
return connTimeOut;
}
public void setConnTimeOut(long connTimeOut) {
this.connTimeOut = connTimeOut;
}
public long getConnectionTimeOut() {
return connectionTimeOut;
}
public void setConnectionTimeOut(long connectionTimeOut) {
this.connectionTimeOut = connectionTimeOut;
}
public boolean isCurrentConnection() {
return isCurrentConnection;
}
public void setCurrentConnection(boolean isCurrentConnection) {
this.isCurrentConnection = isCurrentConnection;
}
public long getLazyCheck() {
return lazyCheck;
}
public void setLazyCheck(long lazyCheck) {
this.lazyCheck = lazyCheck;
}
public long getPeriodCheck() {
return periodCheck;
}
public void setPeriodCheck(long periodCheck) {
this.periodCheck = periodCheck;
}
public boolean isCheakPool() {
return isCheakPool;
}
public void setCheakPool(boolean isCheakPool) {
this.isCheakPool = isCheakPool;
}
}
- 创建com.qrsoft.etl.common.db.DBInitInfo类,该类主要用于加载配置文件中所有的有关数据库的配置信息,初始化数据库连接对象。
package com.qrsoft.etl.common.db;
import com.qrsoft.etl.util.ConfigManager;
import java.util.ArrayList;
import java.util.List;
public class DBInitInfo {
// 设置注册属性
public static String DRIVER = ConfigManager.getInstance().getValue("jdbc.driver");
public static String URL = ConfigManager.getInstance().getValue("jdbc.url");
public static String USERNAME = ConfigManager.getInstance().getValue("jdbc.username");
public static String PASSWORD = ConfigManager.getInstance().getValue("jdbc.password");
public static String MinConnections = ConfigManager.getInstance().getValue("jdbc.min");
public static String MaxConnections = ConfigManager.getInstance().getValue("jdbc.max");
public static List<DBbean> beans = null;
static {
beans = new ArrayList<DBbean>();
// 这里数据 可以从xml 等配置文件进行获取,为了测试,这里直接写死了
DBbean beanMysql = new DBbean();
beanMysql.setDriverName(DRIVER);
beanMysql.setUrl(URL);
beanMysql.setUserName(USERNAME);
beanMysql.setPassword(PASSWORD);
beanMysql.setMinConnections(Integer.parseInt(MinConnections));
beanMysql.setMaxConnections(Integer.parseInt(MaxConnections));
beanMysql.setPoolName("pool");
beans.add(beanMysql);
}
}
- 创建com.qrsoft.etl.common.db.IConnectionPool接口,该接口中定义了连接池操作类的接口方法,如:获得连接、回收连接、销毁清空、查看连接池活动状态、定时检查连接池等接口方法。
package com.qrsoft.etl.common.db;
import java.sql.Connection;
import java.sql.SQLException;
public interface IConnectionPool {
// 获得连接
public Connection getConnection();
// 获得当前连接
public Connection getCurrentConnecton();
// 回收连接
public void releaseConn(Connection conn) throws SQLException;
// 销毁清空
public void destroy();
// 连接池是活动状态
public boolean isActive();
// 定时器,检查连接池
public void cheackPool();
}
- 创建com.qrsoft.etl.common.db.ConnectionPool类,该类实现了IConnectionPool接口,并实现了接口中定义的方法。
package com.qrsoft.etl.common.db;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;
public class ConnectionPool implements IConnectionPool {
// 连接池配置属性
private DBbean dbBean;
private boolean isActive = false; // 连接池活动状态
private int contActive = 0;// 记录创建的总的连接数
// 空闲连接
private List<Connection> freeConnection = new Vector<Connection>();
// 活动连接
private List<Connection> activeConnection = new Vector<Connection>();
// 将线程和连接绑定,保证事务能统一执行
private static ThreadLocal<Connection> threadLocal = new ThreadLocal<Connection>();
public ConnectionPool(DBbean dbBean) {
super();
this.dbBean = dbBean;
init();
cheackPool();
}
// 初始化
public void init() {
try {
Class.forName(dbBean.getDriverName());
for (int i = 0; i < dbBean.getInitConnections(); i++) {
Connection conn;
conn = newConnection();
// 初始化最小连接数
if (conn != null) {
freeConnection.add(conn);
contActive++;
}
}
isActive = true;
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
// 获得当前连接
public Connection getCurrentConnecton() {
// 默认线程里面取
Connection conn = threadLocal.get();
if (!isValid(conn)) {
conn = getConnection();
}
return conn;
}
// 获得连接
public synchronized Connection getConnection() {
Connection conn = null;
try {
// 判断是否超过最大连接数限制
if (contActive < this.dbBean.getMaxActiveConnections()) {
if (freeConnection.size() > 0) {
conn = freeConnection.get(0);
if (conn != null) {
threadLocal.set(conn);
}
freeConnection.remove(0);
} else {
conn = newConnection();
}
} else {
// 继续获得连接,直到从新获得连接
wait(this.dbBean.getConnTimeOut());
conn = getConnection();
}
if (isValid(conn)) {
activeConnection.add(conn);
contActive++;
}
} catch (SQLException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
return conn;
}
// 获得新连接
private synchronized Connection newConnection() throws ClassNotFoundException, SQLException {
Connection conn = null;
if (dbBean != null) {
Class.forName(dbBean.getDriverName());
conn = DriverManager.getConnection(dbBean.getUrl(), dbBean.getUserName(), dbBean.getPassword());
}
return conn;
}
// 释放连接
public synchronized void releaseConn(Connection conn) throws SQLException {
if (isValid(conn)&& !(freeConnection.size() > dbBean.getMaxConnections())) {
freeConnection.add(conn);
activeConnection.remove(conn);
contActive--;
threadLocal.remove();
// 唤醒所有正待等待的线程,去抢连接
notifyAll();
}
}
// 判断连接是否可用
private boolean isValid(Connection conn) {
try {
if (conn == null || conn.isClosed()) {
return false;
}
} catch (SQLException e) {
e.printStackTrace();
}
return true;
}
// 销毁连接池
public synchronized void destroy() {
for (Connection conn : freeConnection) {
try {
if (isValid(conn)) {
conn.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
for (Connection conn : activeConnection) {
try {
if (isValid(conn)) {
conn.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
isActive = false;
contActive = 0;
}
// 连接池状态
public boolean isActive() {
return isActive;
}
// 定时检查连接池情况
public void cheackPool() {
if (dbBean.isCheakPool()) {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
// 1.对线程里面的连接状态
// 2.连接池最小 最大连接数
// 3.其他状态进行检查,因为这里还需要写几个线程管理的类,暂时就不添加了
System.out.println("空线池连接数:" + freeConnection.size());
System.out.println("活动连接数::" + activeConnection.size());
System.out.println("总的连接数:" + contActive);
}
}, dbBean.getLazyCheck(), dbBean.getPeriodCheck());
}
}
}
- 创建com.qrsoft.etl.common.db.ConnectionPoolManager类,该类为数据库的连接管理类,是一个通用的固定写法,通过连接池管理数据库连接,提供了获取单例模式连接的实现,还提供了根据连接池名字获得连接的方法,以及关闭连接、清空连接池等方法。
package com.qrsoft.etl.common.db;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Hashtable;
/**
* 连接管理类
*/
public class ConnectionPoolManager {
// 连接池存放
public Hashtable<String, IConnectionPool> pools = new Hashtable<String, IConnectionPool>();
// 初始化
private ConnectionPoolManager() {
init();
}
// 单例实现
public static ConnectionPoolManager getInstance() {
return Singtonle.instance;
}
private static class Singtonle {
private static ConnectionPoolManager instance = new ConnectionPoolManager();
}
// 初始化所有的连接池
public void init() {
for (int i = 0; i < DBInitInfo.beans.size(); i++) {
DBbean bean = DBInitInfo.beans.get(i);
ConnectionPool pool = new ConnectionPool(bean);
if (pool != null) {
pools.put(bean.getPoolName(), pool);
System.out.println("Info:Init connection successed ->"
+ bean.getPoolName());
}
}
}
// 获得连接,根据连接池名字 获得连接
public Connection getConnection(String poolName) {
Connection conn = null;
if (pools.size() > 0 && pools.containsKey(poolName)) {
conn = getPool(poolName).getConnection();
try {
conn.setAutoCommit(false);
} catch (SQLException e) {
e.printStackTrace();
}
} else {
System.out.println(
"Error:Can't find this connecion pool ->" + poolName);
}
return conn;
}
// 关闭,回收连接
public void close(String poolName, Connection conn) {
IConnectionPool pool = getPool(poolName);
try {
if (pool != null) {
pool.releaseConn(conn);
}
} catch (SQLException e) {
System.out.println("连接池已经销毁");
e.printStackTrace();
}
}
// 清空连接池
public void destroy(String poolName) {
IConnectionPool pool = getPool(poolName);
if (pool != null) {
pool.destroy();
}
}
// 获得连接池
public IConnectionPool getPool(String poolName) {
IConnectionPool pool = null;
if (pools.size() > 0) {
pool = pools.get(poolName);
}
return pool;
}
}
- 创建com.qrsoft.etl.dao.IBaseDao类,该类主要用于数据库的通用操作,如创建连接、执行更新等操作。
package com.qrsoft.etl.dao;
import com.qrsoft.etl.common.db.ConnectionPoolManager;
import com.qrsoft.etl.common.db.IConnectionPool;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class IBaseDao {
private final static Logger logger = LoggerFactory.getLogger(IBaseDao.class);
public ResultSet rs = null;
private IConnectionPool pool= ConnectionPoolManager.getInstance().getPool("pool");
private Connection conn = getConnection();
// 定义sql语句的执行对象
private PreparedStatement pstmt;
public Connection getConnection(){
Connection conn = null;
if(pool != null && pool.isActive()){
conn = pool.getConnection();
}
return conn;
}
public Connection getCurrentConnection(){
Connection conn = null;
if(pool != null && pool.isActive()){
conn = pool.getCurrentConnecton();
}
return conn;
}
/**
* 查询
*/
public ResultSet execute(String sql, Object params[]) {
try {
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql);
for (int i = 0; i < params.length; i++) {
pstmt.setObject(i + 1, params[i]);
}
rs = pstmt.executeQuery();
pool.releaseConn(conn);
} catch (SQLException e) {
e.printStackTrace();
logger.info("查询失败!", e.getMessage());
}
return rs;
}
/**
* 更新
*/
public boolean update(String sql, Object params[]) throws SQLException {
boolean flag = false;
try {
conn.setAutoCommit(false);
pstmt = conn.prepareStatement(sql);
for (int i = 0; i < params.length; i++) {
pstmt.setObject(i + 1, params[i]);
}
int i = pstmt.executeUpdate();
if (i > 0){
flag = true;
}else{
flag = false;
}
pool.releaseConn(conn);
conn.commit();
} catch (SQLException e) {
conn.rollback();
e.printStackTrace();
logger.info("更新失败!", e.getMessage());
}
return flag;
}
/**
* 更新一个
*/
public boolean updateOne(String sql) throws SQLException {
boolean flag = false;
try {
pstmt = conn.prepareStatement(sql);
int i = pstmt.executeUpdate();
if (i > 0){
flag = true;
} else{
flag = false;
}
pool.releaseConn(conn);
conn.commit();
} catch (SQLException e) {
conn.rollback();
e.printStackTrace();
logger.info("更新失败!", e.getMessage());
}
return flag;
}
/**
* 执行查询操作
*/
public List<Map<String, Object>> findResult(String sql, List<?> params) throws SQLException {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
int index = 1;
pstmt = conn.prepareStatement(sql);
if (params != null && !params.isEmpty()) {
for (int i = 0; i < params.size(); i++) {
pstmt.setObject(index++, params.get(i));
}
}
rs = pstmt.executeQuery();
ResultSetMetaData metaData = rs.getMetaData();
int cols_len = metaData.getColumnCount();
while (rs.next()) {
Map<String, Object> map = new HashMap<String, Object>();
for (int i = 0; i < cols_len; i++) {
String cols_name = metaData.getColumnName(i + 1);
Object cols_value = rs.getObject(cols_name);
if (cols_value == null) {
cols_value = "";
}
map.put(cols_name, cols_value);
}
list.add(map);
}
return list;
}
public Boolean getBool(ResultSet airRs){
boolean bool = false;
Integer no = 0;
try {
while (airRs.next()) {
no = airRs.getInt(1);
if (no>0) {
bool = true;
}
}
} catch (SQLException e) {
bool = false;
e.printStackTrace();
}
return bool;
}
}
- 创建com.qrsoft.etl.common.Constants类,该类为全局常量类,定义了相关的常量,使用的时候直接通过Constants类调用,即方便修改,又可以避免手写时写错。
package com.qrsoft.etl.common;
public class Constants {
//间隔时间(10分钟)
public final static int INTERVAL_TIME_10MIN = 10*60*1000;
//间隔时间(5分钟)
public final static int INTERVAL_TIME_5MIN = 5*60*1000;
//间隔时间(1分钟)
public final static int INTERVAL_TIME_1MIN = 60*1000;
//间隔时间(30秒)
public final static int INTERVAL_TIME_30SEC = 30*1000;
//间隔时间(10秒)
public final static int INTERVAL_TIME_10SEC = 10*1000;
//间隔时间(10秒)
public final static int INTERVAL_TIME_5SEC = 5*1000;
//每分钟读取条数
public final static int READ_COUNT = 10;
//kg_airport
public final static String TABLE_AIRPORT = "kg_airport";
//kg_airlinecompany
public final static String TABLE_AIRLINECOMPANY = "kg_airlinecompany";
//kg_PlanData计划数据
public final static String TASK_PlANDATA = "task_PlanData";
public final static String TABLE_PlANDATA = "Kg_PlanData";
public final static String FAMILY_PlANDATA = "ReportHome";
public final static String COLUMN_PlANDATA = "EXECUTE_DATE";
//kg_MultiRadarData综合航迹数据
public final static String TASK_RADAR = "task_Radar";
public final static String TABLE_RADAR = "Kg_MultiRadarData";
public final static String FAMILY_RADAR = "RadarHome";
public final static String COLUMN_RADAR = "SEND_RADAR_TIME";
//kg_AFTN报文数据
public final static String TASK_AFTN = "task_Aftn";
public final static String TABLE_AFTN = "Kg_AFTN";
public final static String FAMILY_AFTN = "AFTNHome";
public final static String COLUMN_AFTN = "EXECUTE_DATE";
//Kg_ATCDutyInfo管制值班人员数据
public final static String TASK_ATCDUTY = "task_ATCDuty";
public final static String TABLE_ATCDUTY = "Kg_ATCDutyInfo";
public final static String FAMILY_ATCDUTY = "ATCDutyHome";
public final static String COLUMN_ATCDUTY = "SEND_TIME";
//Kg_WarnFlightHistory航班指令告警数据
public final static String TASK_WARNFLIGHT = "task_WarnFlight";
public final static String TABLE_WARNFLIGHT = "Kg_WarnFlightHistory";
public final static String FAMILY_WARNFLIGHT = "WarnFlightHome";
public final static String COLUMN_WARNFLIGHT = "GJ_DATE";
//Kg_WarnSimilarHistory相似航班号告警数据
public final static String TASK_WARNSIMILAR = "task_WarnSimilar";
public final static String TABLE_WARNSIMILAR = "Kg_WarnSimilarHistory";
public final static String FAMILY_WARNSIMILAR = "WarnSimilarHome";
public final static String COLUMN_WARNSIMILAR = "GJ_DATE";
//Kg_ATC扇区信息
public final static String TASK_ATC = "task_ATC";
public final static String TABLE_ATC = "Kg_ATC";
public final static String FAMILY_ATC = "ATCHome";
public final static String COLUMN_ATC = "EXECUTE_DATE";
//Kg_CallSaturation 扇区通话饱和度信息
public final static String TASK_CALLSATURATION = "task_CallSaturation";
public final static String TABLE_CALLSATURATION = "Kg_CallSaturation";
public final static String FAMILY_CALLSATURATION = "SaturationHome";
public final static String COLUMN_CALLSATURATION = "SEND_TIME";
}
2、创建com/qrsoft/etl/spark/SparkStreamingApplication.java类,在该类中配置Kafka和Spark的执行参数,然后使用Spark进行业务数据处理,在代码中会根据不同的Topic进入不同的分支,进行数据的处理。
- 创建SparkStreamingApplication.java类,设置Zookeeper的brokers和zkServers,设置需要监听的Topic List
package com.qrsoft.etl.spark;
import com.qrsoft.etl.common.Constants;
import com.qrsoft.etl.util.ConfigUtil;
import net.sf.json.JSONObject;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.apache.spark.SparkConf;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.streaming.Durations;
import org.apache.spark.streaming.api.java.JavaInputDStream;
import org.apache.spark.streaming.api.java.JavaStreamingContext;
import org.apache.spark.streaming.kafka010.ConsumerStrategies;
import org.apache.spark.streaming.kafka010.KafkaUtils;
import org.apache.spark.streaming.kafka010.LocationStrategies;
import org.springframework.stereotype.Component;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
@Component
public class SparkStreamingApplication implements Serializable {
static final Pattern SPACE = Pattern.compile(" ");
// 多个以逗号隔开
static String brokers = ConfigUtil.readProperty("brokers");
static String zkserver = ConfigUtil.readProperty("zkserver");
// 消费者组名称
static String groupId = "spark_etl";
// topic列表
static String topicsStr = Constants.TASK_RADAR;
static String[] topicsStrs = {
Constants.TASK_PlANDATA,
Constants.TASK_WARNFLIGHT,
Constants.TASK_ATCDUTY,
Constants.TASK_WARNSIMILAR,
Constants.TASK_AFTN,
Constants.TASK_ATC,
Constants.TASK_CALLSATURATION,
Constants.TASK_RADAR
};
/**
* 启动Spark读取、清洗数据
*/
public void SparkEtlStart() {
// ... 在此处添加代码 ...
}
}
- 在SparkEtlStart()方法内添加代码,配置Spark和Kafka参数,创建StreamingContext
创建StreamingContext,设置拉取流的时间,准备读取Kafka数据。本地开发时Spark配置使用local[*]方式,设置成本地运行模式,放到集群中运行时需要修改为Yarn模式。
SparkConf conf = new SparkConf().setMaster("local[*]").setAppName("qst-etl");
//反压机制
conf.set("spark.streaming.backpressure.enabled", "true");
conf.set("allowMultipleContexts", "true");
JavaSparkContext sc = new JavaSparkContext(conf);
// 获取jssc 以及设置获取流的时间
JavaStreamingContext jssc = new JavaStreamingContext(sc, Durations.seconds(10));
jssc.sparkContext().setLogLevel("WARN");
// Kafka 参数配置
Map<String, Object> kafkaParams = new HashMap<>();
kafkaParams.put("zookeeper.connect", zkserver);
kafkaParams.put("bootstrap.servers", brokers);
kafkaParams.put(ConsumerConfig.GROUP_ID_CONFIG, groupId); //指定了KafkaConsumershuyu 哪一个消费者群组
kafkaParams.put(ConsumerConfig.ENABLE_AUTO_COMMIT_CONFIG, true);
kafkaParams.put("key.deserializer", StringDeserializer.class);
kafkaParams.put("value.deserializer", StringDeserializer.class);
kafkaParams.put(ConsumerConfig.AUTO_COMMIT_INTERVAL_MS_CONFIG, 1000);
kafkaParams.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "latest"); //读取Kafka最新的一条
kafkaParams.put(ConsumerConfig.SESSION_TIMEOUT_MS_CONFIG, 30000);
Collection<String> topics = Arrays.asList(topicsStrs);
- 拉取Kafka数据流
// 获取流
JavaInputDStream<ConsumerRecord<String, String>> stream = KafkaUtils.createDirectStream(jssc,
LocationStrategies.PreferConsistent(),
ConsumerStrategies.Subscribe(topics, kafkaParams));
- 解析Kafka数据流:解析流,对流进行循环处理,首先把流区分Topic,解析流中的value,其次根据不同Topic进入不同的分支,进行处理
stream.foreachRDD(rdd -> {
rdd.foreach(t -> {
String topName = t.topic();
JSONObject jsonObject = new JSONObject();
String taskRadar = "";
if(topName.equals(Constants.TASK_RADAR)){
taskRadar = t.value();
}else{
jsonObject = JSONObject.parseObject(t.value());
}
SparkUtil sparkUtil = new SparkUtil();
try {
switch (topName) {
case Constants.TASK_RADAR:
// sparkUtil.TaskRadar(taskRadar);
sparkUtil.TaskRadarStr(taskRadar);
break;
case Constants.TASK_PlANDATA:
sparkUtil.TaskPlanData(jsonObject);
break;
case Constants.TASK_WARNFLIGHT:
sparkUtil.TaskWarnfLight(jsonObject);
break;
case Constants.TASK_ATCDUTY:
sparkUtil.TaskAtcduty(jsonObject);
break;
case Constants.TASK_WARNSIMILAR:
sparkUtil.TaskWarnsimilar(jsonObject);
break;
case Constants.TASK_AFTN:
sparkUtil.TaskAftn(jsonObject);
break;
case Constants.TASK_ATC:
sparkUtil.TaskAtc(jsonObject);
break;
case Constants.TASK_CALLSATURATION:
sparkUtil.TaskCallsaturation(jsonObject);
break;
}
} catch (Exception e) {
System.out.println(e);
}
//return Arrays.asList(SPACE.split(t.value())).iterator();
});
});
- 启动Spark,进行业务处理
// 打印结果
//warns.print();
try {
// 启动
jssc.start();
jssc.awaitTermination();
} catch (InterruptedException e) {
e.printStackTrace();
}
3、将清洗后的数据保存到数据库中
- 在上一步的代码中,解析Kafka数据流时,首先把流区分Topic,解析流中的value,其次根据不同Topic进入不同的分支,进行处理。例如:
case Constants.TASK_PlANDATA:
sparkUtil.TaskPlanData(jsonObject);
break;
该分支是处理机场起降数据,这里会用到一个类SparkUtil.java,该类中定义了处理不同Topic数据的方法,其中sparkUtil.TaskPlanData(jsonObject)就是处理机场起降数据对应的方法。
主要任务是:对起降信息进行统计和更新、对航线信息进行统计和更新:
1)首先判断是否有该机场航班起降的统计信息,如果数据库中没有该机场数据,则在数据库中插入;如果有则根据条件进行更新数据;
2)对于航线信息也是如此,如果数据库中没有相应的航线数据,则在数据库中插入;否则根据条件进行更新。
- 编写com.qrsoft.etl.spark.SparkUtil类,代码位置src/main/java/com/qrsoft/etl/spark/SparkUtil.java,在该类中添加一个方法TaskPlanData(jsonObject),用于处理“机场起降数据”对应的Topic中的数据。
package com.qrsoft.etl.spark;
import com.alibaba.fastjson.JSONObject;
import com.qrsoft.etl.dao.PlanDataDao;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import java.text.SimpleDateFormat;
import java.util.Date;
@Component
public class SparkUtil {
private final static Logger logger = LoggerFactory.getLogger(SparkUtil.class);
// 初始化扇区
private static Double[] sectionG = {38.716066,42.297914,114.648477,128.759203};
private static Double[] sectionK = {35.519796,38.716066,114.648477,128.759203};
private static Double[] sectionE = {32.519796,35.519796,114.648477,128.759203};
/**
* 业务处理
* @param jsonObject 机场起降数据
* @throws Exception
*/
public void TaskPlanData(JSONObject jsonObject) throws Exception {
//起飞机场
String adep = jsonObject.getString("ADEP");
//降落机场
String ades = jsonObject.getString("ADES");
//操作数据库,统计和更新机场航班数
operationDB(adep);
operationDB(ades);
//航班号
String acid = jsonObject.getString("ACID");
//操作数据库,统计和更新航线信息
operationDBBOLT(adep, ades, acid);
}
/**
* 操作数据库(对航班起降数进行统计或更新)
* @param code “起飞机场”或“降落机场”
*/
public void operationDB(String code) {
//根据机场代码获取目前数据库中已存在的航班数
PlanDataDao pDao = new PlanDataDao();
boolean bool;
try {
bool = pDao.isExistThisAir(code);
if (bool) {
//存在,在原来基础上+1,修改数据库中该机场的航班数
pDao.updateAnAirMsg(code);
} else {
//不存在,在统计表中创建该机场的航班数(默认为1)
pDao.createAnAirMsg(code);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 操作数据库(对航线进行统计或更新)
* @param adep 起飞机场
* @param ades 降落机场
* @param acid 航班号
*/
public void operationDBBOLT(String adep, String ades, String acid) {
boolean bool;
PlanDataDao pDao = new PlanDataDao();
if (pDao.isDomesticThisLine(adep) && pDao.isDomesticThisLine(ades)) {
bool = pDao.isExistThisLine(acid);
if (bool) {
pDao.updateAnLineMsg(acid);
} else {
pDao.createAnLineMsg(acid, adep, ades);
}
}
}
// ... ...
// ... 其他方法。因为当前要实现的是“机场起降数据”,所以其他可以只有方法体,没有方法实现及返回值。 ...
// ... ...
public void TaskRadarStr(String taskRadar) { }
public void TaskWarnfLight(JSONObject jsonObject) { }
public void TaskAtcduty(JSONObject jsonObject) { }
public void TaskWarnsimilar(JSONObject jsonObject) { }
public void TaskAftn(JSONObject jsonObject) { }
public void TaskAtc(JSONObject jsonObject) { }
public void TaskCallsaturation(JSONObject jsonObject) { }
// ... ...
}
- 在上面的代码中会用到一个com.qrsoft.etl.dao.PlanDataDao类,代码位置src/main/java/com/qrsoft/etl/dao/PlanDataDao.java。该类是一个数据库操作类,会根据业务逻辑进行实际的数据库的操作,如增、删、改、查等。
package com.qrsoft.etl.dao;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.ResultSet;
import java.sql.SQLException;
public class PlanDataDao extends IBaseDao {
private final static Logger logger = LoggerFactory.getLogger(PlanDataDao.class);
// ... ...
// ... 添加方法实现 ...
// ... ...
}
- 对于“处理机场起降数据”会涉及到以下的方法:
查询该机场是否在国内:
public boolean isDomesticThisLine(String code4){
String sql = " SELECT COUNT(*) from airport_longlat where code4 ='"+code4+"';";
Object[] params = {};
ResultSet comRs = this.execute(sql, params);
return getBool(comRs);
}
根据机场代码查询是否有该机场的统计信息:
public boolean isExistThisAir(String code) {
String sql = " SELECT COUNT(*) from airport_number where flightcode='"+code+"';";
Object[] params = {};
ResultSet airRs = this.execute(sql, params);
return getBool(airRs);
}
如果根据机场代码查询,有该机场的统计信息,则在数据库中更新机场的起降航班数:
public void updateAnAirMsg(String code) {
String sql = "update airport_number set count=count+'1' where flightcode='"+code+"'; ";
Object[] params = {};
try {
this.update(sql, params);
} catch (SQLException e) {
logger.info("修改指定机场的统计信息(统计数在原来基础上+1)失败! " + code);
e.printStackTrace();
}
}
如果根据机场代码查询,有该机场的统计信息,则在统计表中创建该机场的航班数(默认为1):
public void createAnAirMsg(String code) {
String sql = "insert into airport_number (flightcode,cname,count) values ('"+code+"',(select airport_cname from kg_airport where AIRPORT_CODE4 = '"+code+"'),'1');";
Object[] params = {};
try {
this.update(sql, params);
} catch (SQLException e) {
logger.info("创建新机场的统计信息失败! " + code);
e.printStackTrace();
}
}
根据航班号查询是否有该航线存在:
public boolean isExistThisLine(String acid){
String sql = " SELECT COUNT(*) from airline_number where acid ='"+acid+"';";
Object[] params = {};
ResultSet comRs = this.execute(sql, params);
return getBool(comRs);
}
根据航班号查询,有该航线统计信息,则在统计表中修改指定航线的统计信息(统计数在原来的基础上+1):
public void updateAnLineMsg(String acid) {
String sql = "update airline_number set count=count+1 where acid='"+acid+"';";
Object[] params = {};
try {
this.update(sql, params);
} catch (SQLException e) {
logger.info("修改指定航线统计信息(统计数在原来基础上+1)失败! 航班号:" + acid);
e.printStackTrace();
}
}
根据航班号查询,没该航线统计信息,则创建新航线的统计信息:
public void createAnLineMsg(String acid,String aDEP,String aDES) {
String sql = "insert into airline_number (acid,adepcode,adescode,adepname,adesname,adeplong,adeplat,adeslong,adeslat,count) values ('"+acid+"','"+aDEP+"','"+aDES+"',(select airport_cname from kg_airport where airport_code4 = '"+aDEP+"'),(select airport_cname from kg_airport where airport_code4 = '"+aDES+"'),(select longitude from airport_longlat where code4 = '"+aDEP+"'),(select latitude from airport_longlat where code4 = '"+aDEP+"'),(select longitude from airport_longlat where code4 = '"+aDES+"'),(select latitude from airport_longlat where code4 = '"+aDES+"'),'1') ;";
Object[] params = {};
try {
this.update(sql, params);
} catch (SQLException e) {
logger.info("创建新航线的统计信息失败! 航班号:" + acid);
e.printStackTrace();
}
}
该PlanDataDao.java类是一个普通的数据库操作类,非常简单,主要是根据我们的业务需求对数据进行相应的操作。这里会涉及到前面我们创建的一些数据库访问的工具类和辅助类:
com.qrsoft.etl.dao.IBaseDao数据库访问的通用类,包括创建连接、执行更新等通用操作com.qrsoft.etl.common.db.ConnectionPoolManager连接管理类com.qrsoft.etl.common.db.IConnectionPool连接池管理类接口com.qrsoft.etl.common.db.ConnectionPool连接池管理类接口实现类com.qrsoft.etl.common.db.DBbean这是外部可以配置的连接池属性 可以允许外部配置,拥有默认值com.qrsoft.etl.common.db.DBInitInfo初始化,模拟加载所有的配置文件com.qrsoft.etl.common.Constants全局常量类com.qrsoft.etl.util.ConfigUtil加载配置文件的工具类com.qrsoft.etl.util.ConfigManager配置文件管理的工具类com.qrsoft.etl.util.MapManager地图管理的工具类,例如:是否在矩形区域内
- 添加或修改如下配置文件:
1)application.yml,服务器相关配置
server:
port: 8849
spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
username: root
password: 123456
url: jdbc:mysql://node3:3306/kongguan?serverTimezone=UTC
redis:
host: node3
port: 6379
database: 15
mybatis-plus:
configuration:
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
mapper-locations: classpath:/mapper/*.xml
2)config.properties,MySQL数据库相关配置
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://node3:3306/kongguan?useSSL=false&characterEncoding=utf8&serverTimezone=Asia/Shanghai
jdbc.username=root
jdbc.password=123456
jdbc.min=20
jdbc.max=500
3)log4j.properties,日志文件相关配置
#定义LOG输出级别
#log4j.rootLogger=INFO,Console,File,stdout
log4j.rootLogger=Console
log4j.rootCategory = ERROR,Console
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式,下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
#文件大小到达指定尺寸的时候产生一个新的文件
# log4j.appender.File = org.apache.log4j.RollingFileAppender
log4j.appender.File.Append=true
log4j.appender.File = org.apache.log4j.DailyRollingFileAppender
#指定输出目录
log4j.appender.File.File = /home/tmp/hbase
log4j.appender.File.DatePattern = '_'yyyy-MM-dd'.log'
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
# 输出所以日志,如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ERROR
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
# mybatis日志输出
log4j.logger.com.sarnath.ind.dao.IRoleDao.addPermission=TRACE
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
4)myconfig.properties,Zookeeper和Kafka相关配置
brokers: node1:9092,node2:9092,node3:9092
zkserver: node1:2181,node2:2181,node3:2181
注意,在上面的步骤中只处理了一个Topic分支的数据,其余Topic分支,参考TASK_PlANDATA方式处理,自行实现其他XXX统计(请参考源代码)。
4、修改项目启动文件BigDataEtlKongGuanApplication.java,内容如下:
package com.qrsoft;
import com.qrsoft.etl.spark.SparkStreamingApplication;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.scheduling.annotation.EnableScheduling;
@SpringBootApplication
@EnableScheduling
public class BigDataEtlKongGuanApplication {
public static void main(String[] args) {
ConfigurableApplicationContext run = SpringApplication.run(BigDataEtlKongGuanApplication.class, args);
SparkStreamingApplication bean = run.getBean(SparkStreamingApplication.class);
bean.SparkEtlStart();
}
}
5、测试
- 确保Hadoop、Spark、Kafka、MySQL等环境均已经启动,如果没有启动,可参考前面的安装部署任务,自行启动。
- 启动BigData-KongGuan项目(如果没有启动)
- 启动BigData-Etl-KongGuan项目
- 在node3节点,进入MySQL数据库,查询 airline*相关的表是否有数据
[root@node3 ~]# mysql -uroot -p123456
mysql> show databases;
mysql> use kongguan;
mysql> select * from airline_number limit 20;
例如:统计airline_number表,记录数是递增的。
mysql> select count(*) from airline_number;
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