kafka学习（四）---- Kafka整合SpringMVC实例（二）

摘要: Kafka整合SpringMVC实例

kafka学习（四）---- Kafka整合SpringMVC实例（二）

1、概述

目前没有很好的整合Kafka的案例，自己参考着使用spring-integration-kafka框架写了一个：
Kafka整合SpringMVC实例，但同时也发现官方文档也不全，所以又用spring简单的实现了一下，感觉这个比使用spring-integration-kafka框架更简单一点，但是需要对kafka作深入的了解，废话不多说直接切入正题。

2、实例

1. 安装Zookeeper

Zookeeper下载基本使用

2. 安装Kafka

kafka基本概念以及环境搭建

3. 创建spring项目（建议使用maven方式创建）

项目截图（小红叉不影响项目的启动）



pom.xml配置

<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.kafka.demo</groupId>
<artifactId>SpringWithKafka</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>SpringWithKafka Maven Webapp</name>
<url>http://maven.apache.org</url>

<properties>
<spring.version>4.2.5.RELEASE</spring.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring-kafka -->
<dependency>
<groupId>org.springframework.kafka</groupId>
<artifactId>spring-kafka</artifactId>
<version>1.0.3.RELEASE</version>
</dependency>
<!-- 日志 -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.5</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.7.6</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.7.6</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.7.6</version>
</dependency>
</dependencies>
<build>
<finalName>SpringWithKafka</finalName>
</build>
</project>

kafka-producer.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
<context:property-placeholder location="classpath:init.properties" />

<!-- 定义producer的参数 -->
<bean id="producerProperties" class="java.util.HashMap">
<constructor-arg>
<map>
<entry key="bootstrap.servers" value="${bootstrap.servers}"/>
<entry key="group.id" value="0"/>
<entry key="retries" value="10"/>
<entry key="batch.size" value="16384"/>
<entry key="linger.ms" value="1"/>
<entry key="buffer.memory" value="33554432"/>
<entry key="key.serializer" value="org.apache.kafka.common.serialization.IntegerSerializer"/>
<entry key="value.serializer" value="org.apache.kafka.common.serialization.StringSerializer"/>
</map>
</constructor-arg>
</bean>

<!-- 创建kafkatemplate需要使用的producerfactory bean -->
<bean id="producerFactory" class="org.springframework.kafka.core.DefaultKafkaProducerFactory">
<constructor-arg>
<ref bean="producerProperties"/>
</constructor-arg>
</bean>

<!-- 创建kafkatemplate，使用的时候，只需要注入这个bean，即可使用template的send消息方法 -->
<bean id="KafkaTemplate" class="org.springframework.kafka.core.KafkaTemplate">
<constructor-arg ref="producerFactory"/>
<constructor-arg name="autoFlush" value="true"/>
<property name="defaultTopic" value="myTopic"/>
</bean>

</beans>

kafka-consumer.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
<context:property-placeholder location="classpath:init.properties" />

<!-- 定义consumer的参数 -->
<bean id="consumerProperties" class="java.util.HashMap">
<constructor-arg>
<map>
<entry key="bootstrap.servers" value="${bootstrap.servers}"/>
<entry key="group.id" value="0"/>
<entry key="enable.auto.commit" value="true"/>
<entry key="auto.commit.interval.ms" value="1000"/>
<entry key="session.timeout.ms" value="15000"/>
<entry key="key.deserializer" value="org.apache.kafka.common.serialization.IntegerDeserializer"/>
<entry key="value.deserializer" value="org.apache.kafka.common.serialization.StringDeserializer"/>
</map>
</constructor-arg>
</bean>

<!-- 创建consumerFactory bean -->
<bean id="consumerFactory" class="org.springframework.kafka.core.DefaultKafkaConsumerFactory">
<constructor-arg>
<ref bean="consumerProperties"/>
</constructor-arg>
</bean>

<!-- 实际执行消息消费的类 -->
<bean id="messageListernerConsumerService" class="com.kafka.demo.service.KafkaConsumerService"/>

<!-- 消费者容器配置信息 -->
<bean id="containerProperties" class="org.springframework.kafka.listener.config.ContainerProperties">
<constructor-arg value="myTopic"/>
<property name="messageListener" ref="messageListernerConsumerService"/>
</bean>

<!-- 注册消费者容器到监听器 -->
<bean id="messageListenerContainer" class="org.springframework.kafka.listener.KafkaMessageListenerContainer" init-method="doStart">
<constructor-arg ref="consumerFactory"/>
<constructor-arg ref="containerProperties"/>
</bean>

</beans>

其他代码请参看实例源码：源码下载

github下载地址

3、实例演示

a、运行项目访问http://localhost:8080/SpringWithKafka/kafka/test //测试地址
效果如图：



b、查看kafka控制台信息输出,如下图：