1、源码地址
http://archive.apache.org/dist/kafka/0.10.0.0/kafka-0.10.0.0-src.tgz
2、环境准备
centOS
gradle 下载地址 https://services.gradle.org/distributions/gradle-3.1-bin.zip 安装请参考 这里 。注意要安装3.1版本，如果安装1.1版本可能会出错。
Scala
Java
3、生成idea项目文件
解压kafka-0.10.0.0-src.tgz
进入目录，执行gradle idea
4、使用idea导入项目并启动
kafka项目启动的入口类是core/src/main/scala/kafka/Kafka
启动需要添加server.properties配置文件路径。
记得修改server.properties里面的内容
然后，这样启动是不会打印日志的，所以要添加log4j.properties文件。在config文件夹下有log4j.properties文件，在core项目下创建resources文件夹，把log4j.properties文件复制过去。
然后启动项目，这样就可以看到打印日志了。(记得修改server.properties里的zk地址和logDir地址)
5、问题：
执行gradle idea时，报错
[root@bigdata01 kafka-0.10.0.0-src]# gradle idea Starting a Gradle Daemon (subsequent builds will be faster) Building project 'core' with Scala version 2.10.6 FAILURE: Build failed with an exception. * Where: Build file '/opt/bigdata/kafka/kafka-0.10.0.0-src/build.gradle' line: 230 * What went wrong: A problem occurred evaluating root project 'kafka-0.10.0.0-src'. > Failed to apply plugin [class 'org.gradle.api.plugins.scala.ScalaBasePlugin'] > No such property: useAnt for class: org.gradle.api.tasks.scala.ScalaCompileOptions * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED Total time: 22.997 secs
解决方法：vim kafka-0.10.0.0-src/build.gradle文件
添加如下行
ScalaCompileOptions.metaClass.daemonServer = true ScalaCompileOptions.metaClass.fork = true ScalaCompileOptions.metaClass.useAnt = false ScalaCompileOptions.metaClass.useCompileDaemon = false
执行gradle idea时，报错
FAILURE: Build failed with an exception. * Where: Build file '/opt/bigdata/kafka/kafka-0.10.0.0-src/build.gradle' line: 48 * What went wrong: Could not compile build file '/opt/bigdata/kafka/kafka-0.10.0.0-src/build.gradle'. > startup failed: build file '/opt/bigdata/kafka/kafka-0.10.0.0-src/build.gradle': 48: unable to resolve class ComponentSelection @ line 48, column 19. rules.all { ComponentSelection selection -> ^ 1 error * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED Total time: 9.076 secs
我之前安装的是1.1版本的Gradle。换成3.1版本后，问题解决。
