java代码消费kafka数据，并打成jar包，上传至服务器运行

java代码消费kafka数据，并打成jar包，上传至服务器运行 —>>>
消费者代码：

package kafka.test;

import java.util.Collections;
import java.util.Properties;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;


import org.apache.log4j.Logger;

public class KafkaTest {
  public static Logger logger = Logger.getLogger(KafkaTest.class);
  public static void main(String[] args) {
    Properties properties = new Properties();
    properties.put("bootstrap.servers", "****:9092");//xxx是服务器集群的ip
    properties.put("group.id", "***-gq-test-redlist");
//    properties.put("group.id", "");
    properties.put("enable.auto.commit", "true");
    properties.put("auto.commit.interval.ms", "1000");
    properties.put("auto.offset.reset", "latest");
    properties.put("session.timeout.ms", "30000");
    properties.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
    properties
        .put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
    //创建一个消费者客户端实例
    KafkaConsumer<String,String> consumer=new KafkaConsumer<>(properties);

    //订阅主题
    consumer.subscribe(Collections.singletonList("topic"));

    //循环消费消息
    while (true){
      try {
        ConsumerRecords<String,String> records=consumer.poll(1000);
        if (records.count()>0) {
          for (ConsumerRecord<String,String> record:records){
//            System.out.println("receiver a message from consumer client:"+record.value());
            logger.info("jjjj");
          }
        }
      } catch (Exception e) {
        logger.error(e);
      }
    }
  }
}

log4j.properties写法

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Set everything to be logged to the file target/unit-tests.log
### \u8BBE\u7F6E###

log4j.rootLogger=stdout,info,error,ERROR,E
### \u8F93\u51FA\u4FE1\u606F\u5230\u63A7\u5236\u62AC ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.err
log4j.appender.stdout.layout=org.apache.log4j.PatternLayouts
log4j.appender.stdout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### \u8F93\u51FADEBUG \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/info.log ###
log4j.appender.info=org.apache.log4j.RollingFileAppender
log4j.appender.info.File=logs/info.log
log4j.appender.info.Append=true
log4j.appender.info.Threshold=INFO
log4j.appender.info.MaxFileSize=20480KB
log4j.appender.info.MaxBackupIndex=10
log4j.appender.info.layout=org.apache.log4j.PatternLayout
log4j.appender.info.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n
### \u8F93\u51FADEBUG \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ###
log4j.appender.debug=org.apache.log4j.RollingFileAppender
log4j.appender.debug.File=file:///opt/opsmgr/web/components/logs/debug.log
log4j.appender.debug.Append=true
log4j.appender.debug.Threshold=DEBUG
log4j.appender.debug.MaxFileSize=20480KB
log4j.appender.debug.MaxBackupIndex=10
log4j.appender.debug.layout=org.apache.log4j.PatternLayout
log4j.appender.debug.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n
### \u8F93\u51FAERROR \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ###
log4j.appender.error=org.apache.log4j.RollingFileAppender
log4j.appender.error.File=logs/error.log
log4j.appender.error.Append=true
log4j.appender.error.Threshold=ERROR
log4j.appender.error.MaxFileSize=20480KB
log4j.appender.error.MaxBackupIndex=10
log4j.appender.error.layout=org.apache.log4j.PatternLayout
log4j.appender.error.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

引入的pom文件 — > > >

  <dependencies>
    <dependency>
      <groupId>org.apache.kafka</groupId>
      <artifactId>kafka-clients</artifactId>
      <version>0.10.0.1</version>
    </dependency>
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
</dependencies>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-assembly-plugin</artifactId>
        <version>2.5.5</version>
        <configuration>
          <archive>
            <manifest>
              <mainClass>kafka.test.KafkaTest</mainClass> // 指定主类
            </manifest>
          </archive>
          <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
          </descriptorRefs>
        </configuration>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>7</source>
          <target>7</target>
        </configuration>
      </plugin>
    </plugins>

  </build>

生成jar

上传服务器执行

前台模式 java –jar XXXX.jar（注意这个命令启动时，断开服务连接后，服务就关闭了）；
后台模式 nohup java -jar XXXX.jar >XX.log 2>&1&（xx.log代表日志输出文件）

要是不识别 java命令 前面跟上jdk路径 -->
/opt/opsmgr/web/components/jre18linux64.1/bin/java -jar kafka-1.0-SNAPSHOT-jar-with-dependencies.jar>gqtest.log 2>&1&

查询进程
[root@localhost gqtest]# ps aux|grep kafka-1.0-SNAPSHOT-jar-with-dependencies.jar
root 3125 2.7 0.4 36591388 607608 pts/2 Sl 19:46 0:07 /opt/opsmgr/web/components/jre18linux64.1/bin/java -jar kafka-1.0-SNAPSHOT-jar-with-dependencies.jar
root 11763 0.0 0.0 112844 1256 pts/2 S+ 19:51 0:00 grep --color=auto kafka-1.0-SNAPSHOT-jar-with-dependencies.jar

以上只是参考 自己留存~~~