flink读取kafka导入css

运行环境：

flink（mrs3.0.1）+kafka（mrs3.0.5）+css7.9.3

后台执行：

flink run -m yarn-cluster -yjm 2048 -ytm 2048 -ys 2 

-c com.huawei.bigdata.flink.examples.ReadFromKafka 

./FlinkKafkaJavaExample.jar -topic test_wwk 

-bootstrap.servers 192.168.2.52:9092,192.168.2.66:9092,192.168.2.40:9092,192.168.2.131:9092,192.168.0.19:9092,192.168.0.241:9092

 -es.servers  192.168.0.40:9200,192.168.0.251:9200,192.168.0.153:9200 -index my-index

前台执行：

代码样例：

StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
env.setParallelism(1);
ParameterTool paraTool = ParameterTool.fromArgs(args);

//读取kafka数据
DataStream<String> messageStream =
        env.addSource(
                new FlinkKafkaConsumer<>(
                        paraTool.get("topic"), new SimpleStringSchema(), paraTool.getProperties()))
                .rebalance().map(
                new MapFunction<String, String>() {
                    @Override
                    public String map(String s) throws Exception {
                        return  s +","+System.currentTimeMillis();
                    }
                });

//将es连接串放到list中
List<HttpHost> transportAddresses = new ArrayList<>();
for (String ipport:paraTool.get("es.servers").split(",")) {
    String[] ip=ipport.split(":");
    System.out.println(ip[0]+"    "+ip[1]);
    transportAddresses.add(new HttpHost(ip[0], Integer.parseInt(ip[1]),"http"));
}

//创建esSinkBuilder，将数据放到map中
ElasticsearchSink.Builder<String> esSinkBuilder = new ElasticsearchSink.Builder<String>(transportAddresses, new ElasticsearchSinkFunction<String>() {
    public IndexRequest createIndexRequest(String element) {
        Map<String, String> json = new HashMap<>();
        String[] strs=element.split(",");
        System.out.println(element);
        //将需要写入ES的字段依次添加到Map当中
        json.put("data", strs[0]);
        json.put("time", strs[1]);
        return Requests.indexRequest()
                .index(paraTool.get("index"))
                .source(json);
    }

    @Override
    public void process(String element, RuntimeContext ctx, RequestIndexer indexer) {
        indexer.add(createIndexRequest(element));
    }
});

//配置es的参数
esSinkBuilder.setBulkFlushMaxActions(1);
messageStream.addSink(esSinkBuilder.build());
env.execute();

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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.huawei.bigdata.flink.examples</groupId>
    <artifactId>FlinkKafkaJavaExample</artifactId>
    <version>1.0</version>
    <properties>
        <flink.version>1.10.0-hw-ei-302002</flink.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-core</artifactId>
            <version>${flink.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-shaded-hadoop-2</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-java</artifactId>
            <version>${flink.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-shaded-hadoop-2</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-streaming-java_2.11</artifactId>
            <version>${flink.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.flink</groupId>
                    <artifactId>flink-shaded-hadoop-2</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-kafka_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-connector-elasticsearch7_2.11</artifactId>
            <version>${flink.version}</version>
        </dependency>
    </dependencies>
</project>

验证结果：

kafka输入：

es结果输出：