Window7 开发Spark代码分析 Nginx 日志(JAVA版本)

       通过上文 Window7 开发 Spark 应用 ,展示了如何开发一个Spark应用，但文中使用的测试数据都是自己手动录入的。

所以本文讲解一下如何搭建一个开发闭环，本里使用了Nginx日志采集分析为例，分析页面访问最多的10个,404页面的10。

如果把这些开发成果最终展示到一个web网页中，在这篇文章中就不描述了，本博其他文章给出的示例已经足够你把Spark的应用能力暴露到Web中。

版本信息

OS： Window7

JAVA：1.8.0_181

Hadoop：3.2.1

Spark: 3.0.0-preview2-bin-hadoop3.2

IDE: IntelliJ IDEA 2019.2.4 x64

服务器搭建

Hadoop：CentOS7 部署 Hadoop 3.2.1 (伪分布式)

Spark：CentOS7 安装 Spark3.0.0-preview2-bin-hadoop3.2 

Flume：Centos7 搭建 Flume 采集 Nginx 日志

示例源码下载

Spark应用开发示例代码

应用开发

1. 本地新建一个Spark项目,POM.xml 内容如下：

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.phpdragon</groupId>
    <artifactId>spark-example</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <spark.version>2.4.5</spark.version>
        <spark.scala.version>2.12</spark.scala.version>
    </properties>

    <dependencies>
        <!-- Spark dependency Start -->
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-core_${spark.scala.version}</artifactId>
            <version>${spark.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-sql_${spark.scala.version}</artifactId>
            <version>${spark.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-streaming_${spark.scala.version}</artifactId>
            <version>${spark.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-mllib_${spark.scala.version}</artifactId>
            <version>${spark.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-hive_${spark.scala.version}</artifactId>
            <version>${spark.version}</version>
            <!--<scope>provided</scope>-->
        </dependency>
        <dependency>
            <groupId>org.apache.spark</groupId>
            <artifactId>spark-graphx_${spark.scala.version}</artifactId>
            <version>${spark.version}</version>
        </dependency>
        <dependency>
            <groupId>com.github.fommil.netlib</groupId>
            <artifactId>all</artifactId>
            <version>1.1.2</version>
            <type>pom</type>
        </dependency>
        <!-- Spark dependency End -->

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.68</version>
        </dependency>
    </dependencies>

    <build>
        <sourceDirectory>src/main/java</sourceDirectory>
        <testSourceDirectory>src/test/java</testSourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <mainClass></mainClass>
                        </manifest>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>1.2.1</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <executable>java</executable>
                    <includeProjectDependencies>false</includeProjectDependencies>
                    <includePluginDependencies>false</includePluginDependencies>
                    <classpathScope>compile</classpathScope>
                    <mainClass>com.phpragon.spark.WordCount</mainClass>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2. 编写Nginx日志分析代码：

import com.alibaba.fastjson.JSONObject;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.spark.api.java.JavaPairRDD;
import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.function.Function;
import org.apache.spark.api.java.function.Function2;
import org.apache.spark.api.java.function.PairFunction;
import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.Row;
import org.apache.spark.sql.RowFactory;
import org.apache.spark.sql.SparkSession;
import org.apache.spark.sql.types.DataTypes;
import org.apache.spark.sql.types.StructField;
import org.apache.spark.sql.types.StructType;
import scala.Tuple2;

import java.io.Serializable;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.List;

/**
 * 分析
 */
@Slf4j
public class NginxLogAnalysis {

    private static String INPUT_TXT_PATH;

    static {
        // /flume/nginx_logs/ 目录下的所有日志文件
        String datetime = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMdd"));
        //TODO: 请设置你自己的服务器路径
        INPUT_TXT_PATH = "hdfs://172.16.1.126:9000/flume/nginx_logs/" + datetime + "/*.log";
    }

    /**
     * 请现在配置nginx日志格式和安装flume
     * 文件：本项目根目录 test/nginx_log
     * 参考：
     *
     * @param args
     */
    public static void main(String[] args) {
        SparkSession spark = SparkSession
                .builder()
                .appName("NetworkWordCount(Java)")
                //TODO: 本地执行请启用这个设置
                //.master("local[*]")
                .getOrCreate();

        analysisNginxAllLog(spark);
        analysisNginx404Log(spark);
    }

    /**
     *
     * @param spark
     */
    private static void analysisNginx404Log(SparkSession spark) {
        // 通过一个文本文件创建Person对象的RDD
        JavaPairRDD<String, Integer> logsRDD = spark.read()
                .json(INPUT_TXT_PATH)
                .javaRDD()
                //.filter(row-> 404 == Long.parseLong(row.getAs("status").toString()))
                .filter(new Function<Row, Boolean>() {
                    @Override
                    public Boolean call(Row row) throws Exception {
                        return 404 == Long.parseLong(row.getAs("status").toString());
                    }
                })
                .map(line -> {
                    return line.getAs("request_uri").toString();
                })
                //log是每一行数据的对象，value是1
                //.mapToPair(requestUri -> new Tuple2<>(requestUri, 1))
                .mapToPair(new PairFunction<String, String, Integer>() {
                    @Override
                    public Tuple2<String, Integer> call(String requestUri) throws Exception {
                        return new Tuple2<>(requestUri, 1);
                    }
                })
                //基于key进行reduce，逻辑是将value累加
                //.reduceByKey((value, lastValue) -> value + lastValue)
                .reduceByKey(new Function2<Integer, Integer, Integer>() {
                    @Override
                    public Integer call(Integer value, Integer lastValue) throws Exception {
                        return value + lastValue;
                    }
                });

        //先将key和value倒过来，再按照key排序
        JavaPairRDD<Integer, String> sorts = logsRDD
                //key和value颠倒，生成新的map
                .mapToPair(log -> new Tuple2<>(log._2(), log._1()))
                //按照key倒排序
                .sortByKey(false);


        //取前10个
//        FormatUtil.printJson(JSONObject.toJSONString(sorts.take(10)));

        // 手动定义schema 生成StructType
        List<StructField> fields = new ArrayList<>();
        fields.add(DataTypes.createStructField("total(404)", DataTypes.IntegerType, true));
        fields.add(DataTypes.createStructField("request_uri", DataTypes.StringType, true));
        //构建StructType，用于最后DataFrame元数据的描述
        StructType schema = DataTypes.createStructType(fields);
        JavaRDD<Row> rankingListRDD = sorts.map(log -> RowFactory.create(log._1(), log._2()));

        // 对JavaBeans的RDD指定schema得到DataFrame
        System.out.println("输出404状态的前10个URI：SELECT * FROM nginx_log_404 LIMIT 10");
        Dataset<Row> rankingListDF = spark.createDataFrame(rankingListRDD, schema);
        rankingListDF.createOrReplaceTempView("tv_nginx_log_404");
        rankingListDF = spark.sql("SELECT * FROM tv_nginx_log_404 LIMIT 10");
        rankingListDF.show();
    }

    private static void analysisNginxAllLog(SparkSession spark) {
        // 通过一个文本文件创建Person对象的RDD
        JavaPairRDD<String, Integer> logsRDD = spark.read()
                .json(INPUT_TXT_PATH)
                .javaRDD()
                .map(line -> line.getAs("request_uri").toString())
                //log是每一行数据的对象，value是1
                //.mapToPair(requestUri -> new Tuple2<>(requestUri, 1))
                .mapToPair(new PairFunction<String, String, Integer>() {
                    @Override
                    public Tuple2<String, Integer> call(String requestUri) throws Exception {
                        return new Tuple2<>(requestUri, 1);
                    }
                })
                //基于key进行reduce，逻辑是将value累加
                //.reduceByKey((value, lastValue) -> value + lastValue)
                .reduceByKey(new Function2<Integer, Integer, Integer>() {
                    @Override
                    public Integer call(Integer value, Integer lastValue) throws Exception {
                        return value + lastValue;
                    }
                });

        //先将key和value倒过来，再按照key排序
        JavaPairRDD<Integer, String> sorts = logsRDD
                //key和value颠倒，生成新的map
                .mapToPair(log -> new Tuple2<>(log._2(), log._1()))
                //按照key倒排序
                .sortByKey(false);

        //取前10个
        //System.out.println("取前10个：");
        //FormatUtil.printJson(JSONObject.toJSONString(sorts.take(10)));

        // 手动定义schema 生成StructType
        List<StructField> fields = new ArrayList<>();
        fields.add(DataTypes.createStructField("total", DataTypes.IntegerType, true));
        fields.add(DataTypes.createStructField("request_uri", DataTypes.StringType, true));
        //构建StructType，用于最后DataFrame元数据的描述
        StructType schema = DataTypes.createStructType(fields);
        JavaRDD<Row> rankingListRDD = sorts.map(log -> RowFactory.create(log._1(), log._2()));

        // 对JavaBeans的RDD指定schema得到DataFrame
        System.out.println("输出访问量前10的URI：SELECT * FROM tv_nginx_log LIMIT 10");
        Dataset<Row> rankingListDF = spark.createDataFrame(rankingListRDD, schema);
        rankingListDF.createOrReplaceTempView("tv_nginx_log");
        rankingListDF = spark.sql("SELECT * FROM tv_nginx_log LIMIT 10");
        rankingListDF.show();
    }

    public static void readNginxLog(SparkSession spark) {
        // 通过一个文本文件创建Person对象的RDD
        JavaRDD<NginxLog> logsRDD = spark.read()
                .json(INPUT_TXT_PATH)
                .javaRDD()
                .map(line -> {
                    NginxLog person = new NginxLog();
                    person.setRemoteAddr(line.getAs("remote_addr"));
                    person.setHttpXForwardedFor(line.getAs("http_x_forwarded_for"));
                    person.setTimeLocal(line.getAs("time_local"));
                    person.setStatus(line.getAs("status"));
                    person.setBodyBytesSent(line.getAs("body_bytes_sent"));
                    person.setHttpUserAgent(line.getAs("http_user_agent"));
                    person.setHttpReferer(line.getAs("http_referer"));
                    person.setRequestMethod(line.getAs("request_method"));
                    person.setRequestTime(line.getAs("request_time"));
                    person.setRequestUri(line.getAs("request_uri"));
                    person.setServerProtocol(line.getAs("server_protocol"));
                    person.setRequestBody(line.getAs("request_body"));
                    person.setHttpToken(line.getAs("http_token"));
                    return person;
                });

        JavaPairRDD<String, Integer> logsRairRDD = logsRDD
                //log是每一行数据的对象，value是1
                //.mapToPair(log -> new Tuple2<>(log.getRequestUri(), 1))
                .mapToPair(new PairFunction<NginxLog, String, Integer>() {
                    @Override
                    public Tuple2<String, Integer> call(NginxLog nginxLog) throws Exception {
                        return new Tuple2<String, Integer>(nginxLog.getRequestUri(), 1);
                    }
                })
                //基于key进行reduce，逻辑是将value累加
                //.reduceByKey((value, lastValue) -> value + lastValue)
                .reduceByKey(new Function2<Integer, Integer, Integer>() {
                    @Override
                    public Integer call(Integer value, Integer lastValue) throws Exception {
                        return value + lastValue;
                    }
                }).sortByKey(false);


        //先将key和value倒过来，再按照key排序
        JavaPairRDD<Integer, String> rankingListRDD = logsRairRDD
                //key和value颠倒，生成新的map
                .mapToPair(tuple2 -> new Tuple2<>(tuple2._2(), tuple2._1()))
                //按照key倒排序
                .sortByKey(false);

        //取前10个
        List<Tuple2<Integer, String>> top10 = rankingListRDD.take(10);

        System.out.println(JSONObject.toJSONString(top10));

        // 对JavaBeans的RDD指定schema得到DataFrame
        Dataset<Row> allLogsDF = spark.createDataFrame(logsRDD, NginxLog.class);
        allLogsDF.show();
    }

    @Data
    public static class NginxLog implements Serializable {
        private String remoteAddr;
        private String httpXForwardedFor;
        private String timeLocal;
        private long status;
        private long bodyBytesSent;
        private String httpUserAgent;
        private String httpReferer;
        private String requestMethod;
        private String requestTime;
        private String requestUri;
        private String serverProtocol;
        private String requestBody;
        private String httpToken;
    }
}

准备工作

1.请查看文章， Centos7 搭建 Flume 采集 Nginx 日志 。

2.执行测试脚本，增加访问日志：

本地调试

1.增加红色部分代码，设置为本地模式 。

2.右键执行main方法：

服务端调试：

请参考 Window7 开发 Spark 应用

PS：

大数据可视化之Nginx日志分析及web图表展示（HDFS+Flume+Spark+Nginx+Highcharts）