在環(huán)境搭建過程中遇到兩個問題,在這里先列出來,以方便查詢:
1. \Java\jre7\lib\ext\QTJava.zip was unexpected at this time. Process exited
解決方案:
1.1 右鍵點(diǎn)擊“我的電腦” -> "高級系統(tǒng)設(shè)置" -> "環(huán)境變量"
1.2 查看CLASSPATH的值里有沒有包含QTJava.zip的路徑,如果有的話,把對應(yīng)的路徑刪除,問題就解決了。
2. Missing `server' JVM (Java\jre7\bin\server\jvm--.dll.)
解決方案:
2.1. 拷貝C:\Program Files\Java\jdk1.6.0\jre\bin\server
2.2 粘貼到 C:\Program Files\Java\jre1.6.0\bin
搭建環(huán)境
1. 安裝JDK
1.1 安裝文件:http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html下載Server JRE.
1.2 安裝完成后需要添加以下的環(huán)境變量(右鍵點(diǎn)擊“我的電腦” -> "高級系統(tǒng)設(shè)置" -> "環(huán)境變量" ):
JAVA_HOME: C:\Program Files (x86)\Java\jre1.8.0_60(這個是默認(rèn)安裝路徑,如果安裝過程中更改了安裝目錄,把更改后的路徑填上就行了)
PATH: 在現(xiàn)有的值后面添加"; %JAVA_HOME%\bin"
1.3 打開cmd運(yùn)行 "java -version" 查看當(dāng)前系統(tǒng)Java的版本:
2. 安裝Zookeeper
Kafka的運(yùn)行依賴于Zookeeper,所以在運(yùn)行Kafka之前我們需要安裝并運(yùn)行Zookeeper
2.1 下載安裝文件: http://zookeeper.apache.org/releases.html
2.2 解壓文件(本文解壓到 G:\zookeeper-3.4.8)
2.3 打開G:\zookeeper-3.4.8\conf,把zoo_sample.cfg重命名成zoo.cfg
2.4 從文本編輯器里打開zoo.cfg
2.5 把dataDir的值改成“:\zookeeper-3.4.8\data”
2.6 添加如下系統(tǒng)變量:
ZOOKEEPER_HOME: G:\zookeeper-3.4.8
Path: 在現(xiàn)有的值后面添加 ";%ZOOKEEPER_HOME%\bin;"
2.7 運(yùn)行Zookeeper: 打開cmd然后執(zhí)行
zkserver
3. 安裝并運(yùn)行Kafka
3.1 下載安裝文件: http://kafka.apache.org/downloads.html
3.2 解壓文件(本文解壓到 G:\kafka_2.11-0.10.0.1)
3.3 打開G:\kafka_2.11-0.10.0.1\config
3.4 從文本編輯器里打開 server.properties
3.5 把 log.dirs的值改成 “G:\kafka_2.11-0.10.0.1\kafka-logs”
3.6 打開cmd
3.7 進(jìn)入kafka文件目錄: cd /d G:\kafka_2.11-0.10.0.1\
3.8 輸入并執(zhí)行以打開kafka:
.\bin\windows\kafka-server-start.bat .\config\server.properties
4. 創(chuàng)建topics
4.1 打開cmd 并進(jìn)入G:\kafka_2.11-0.10.0.1\bin\windows
4.2 創(chuàng)建一個topic:
kafka-topics.bat --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
5. 打開一個Producer:
cd /d G:\kafka_2.11-0.10.0.1\bin\windows kafka-console-producer.bat --broker-list localhost:9092 --topic test
6. 打開一個Consumer:
cd /d G:\kafka_2.11-0.10.0.1\bin\windows
kafka-console-consumer.bat --zookeeper localhost:2181 --topic test
然后就可以在Producer控制臺窗口輸入消息了。在消息輸入過后,很快Consumer窗口就會顯示出Producer發(fā)送的消息:
至此,Kafka運(yùn)行環(huán)境的搭建就完成了:-)
web管理方面(正式運(yùn)維部署):
網(wǎng)上有人說 kafka manage
.net sdk方面:
有人建議:https://github.com/Microsoft/CSharpClient-for-Kafka (微軟提供的sdk,看了源碼個人感覺有些復(fù)雜)
還有
kafka-net 這個感覺會簡單很多(看了源碼感覺一些Task寫法并不喜歡)
推薦:kafka-net 簡單易用些。
地址: https://github.com/Jroland/kafka-net
以上sdk 可以搜索nuget 查看開源地址和最新release包,當(dāng)然.net sdk 還有很多其他選擇。
個人開發(fā)工具(windows支持),windows 開發(fā)環(huán)境使用
kafkaTool
下載地址: http://www.kafkatool.com/download.html
kafka-net sdk使用demo
參考來源:http://www.cnblogs.com/Wulex/p/5619425.html
詳細(xì)請查看官方開源地址的demo: https://github.com/Jroland/kafka-net
KafkaProducer程序:
class Program { static void Main(string[] args) { do { Produce(GetKafkaBroker(), getTopicName()); System.Threading.Thread.Sleep(3000); } while (true); } private static void Produce(string broker, string topic) { var options = new KafkaOptions(new Uri(broker)); var router = new BrokerRouter(options); var client = new Producer(router); var currentDatetime =DateTime.Now; var key = currentDatetime.Second.ToString(); var events = new[] { new Message("Hello World " + currentDatetime, key) }; client.SendMessageAsync(topic, events).Wait(1500); Console.WriteLine("Produced: Key: {0}. Message: {1}", key, events[0].Value.ToUtf8String()); using (client) { } } private static string GetKafkaBroker() { string KafkaBroker = string.Empty; const string kafkaBrokerKeyName = "KafkaBroker"; if (!ConfigurationManager.AppSettings.AllKeys.Contains(kafkaBrokerKeyName)) { KafkaBroker = "http://localhost:9092"; } else { KafkaBroker = ConfigurationManager.AppSettings[kafkaBrokerKeyName]; } return KafkaBroker; } private static string getTopicName() { string TopicName = string.Empty; const string topicNameKeyName = "Topic"; if (!ConfigurationManager.AppSettings.AllKeys.Contains(topicNameKeyName)) { throw new Exception("Key \"" + topicNameKeyName + "\" not found in Config file -> configuration/AppSettings"); } else { TopicName = ConfigurationManager.AppSettings[topicNameKeyName]; } return TopicName; } }
4.KafkaConsumer程序:
class Program { static void Main(string[] args) { Consume(getKafkaBroker(), getTopicName()); } private static void Consume(string broker, string topic) { var options = new KafkaOptions(new Uri(broker)); var router = new BrokerRouter(options); var consumer = new Consumer(new ConsumerOptions(topic, router)); //Consume returns a blocking IEnumerable (ie: never ending stream) foreach (var message in consumer.Consume()) { Console.WriteLine("Response: Partition {0},Offset {1} : {2}", message.Meta.PartitionId, message.Meta.Offset, message.Value.ToUtf8String()); } } private static string getKafkaBroker() { string KafkaBroker = string.Empty; var KafkaBrokerKeyName = "KafkaBroker"; if (!ConfigurationManager.AppSettings.AllKeys.Contains(KafkaBrokerKeyName)) { KafkaBroker = "http://localhost:9092"; } else { KafkaBroker = ConfigurationManager.AppSettings[KafkaBrokerKeyName]; } return KafkaBroker; } private static string getTopicName() { string TopicName = string.Empty; var TopicNameKeyName = "Topic"; if (!ConfigurationManager.AppSettings.AllKeys.Contains(TopicNameKeyName)) { throw new Exception("Key \"" + TopicNameKeyName + "\" not found in Config file -> configuration/AppSettings"); } else { TopicName = ConfigurationManager.AppSettings[TopicNameKeyName]; } return TopicName; } }
5.Consumer結(jié)果:
開源是一種態(tài)度,分享是一種精神,學(xué)習(xí)仍需堅(jiān)持,進(jìn)步仍需努力,.net生態(tài)圈因你我更加美好。