1.项目编码UTF-8
2.scala 2.11版本下编译的kafka0.8.2.1版本代码
3.配置测试环境
        <dependency>
            <groupId>org.scalatest</groupId>
            <artifactId>scalatest_2.11</artifactId>
            <version>2.2.4</version>
            <scope>test</scope>
        </dependency>

	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>4.12</version>
	</dependency>




kafka客户端需要指定message发送给哪个topic-partition.