简介：
下面讲有我已经打包并且编辑过的zip包，你可以在下面下载即可。
1、下载zip包。
elasticsearch-analysis-ik-1.8.0.jar
下面有附件链接【ik-安装包.zip】，下载即可。（内有做好的elasticsearch-analysis-ik-1.8.0.jar）
2、上传zip包。
下载ik.zip文件后解压缩，如下图。
修改plugin-descriptor.properties文件，将elasticsearch.version=2.2.0改成自己的elasticsearch版本（通过访问localhost:9200查看版本号）
#把这个版本号改成你对应的版本即可，如你的版本是2.2.0，就改成2.2.0
elasticsearch.version=2.2.0
修改好后，打成zip包上传至Linux系统elasticsearch-2.2.0/plugins目录下，使用unzip ik.zip解压
此处注意目录结构必须是这样，如下图：
3、启动测试
呃，我们发现报错了。
[elasticsearch@iZ25x3wjytdZ elasticsearch-2.0.0]$ ./bin/elasticsearch
[2016-03-01 10:32:02,958][INFO ][node ] [Landslide] version[2.0.0], pid[11109], build[de54438/2015-10-22T08:09:48Z]
[2016-03-01 10:32:02,959][INFO ][node ] [Landslide] initializing ...
Exception in thread "main" java.lang.IllegalStateException: Unable to initialize plugins
Likely root cause: java.nio.file.FileSystemException: /home/elasticsearch/es/elasticsearch-2.0.0/plugins/ik.zip/plugin-descriptor.properties: Not a directory
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:214)
at java.nio.file.Files.newByteChannel(Files.java:317)
at java.nio.file.Files.newByteChannel(Files.java:363)
at java.nio.file.spi.FileSystemProvider.newInputStream(FileSystemProvider.java:380)
at java.nio.file.Files.newInputStream(Files.java:108)
at org.elasticsearch.plugins.PluginInfo.readFromProperties(PluginInfo.java:86)
at org.elasticsearch.plugins.PluginsService.getPluginBundles(PluginsService.java:306)
at org.elasticsearch.plugins.PluginsService.(PluginsService.java:112)
at org.elasticsearch.node.Node.(Node.java:144)
at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:145)
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:170)
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35)
一看我们就知道，他去找plugins/ik.zip 下的配置文件对吧。解决方案是把这个ZIP包删除即可。删除后再次启动。
[elasticsearch@iZ25x3wjytdZ elasticsearch-2.0.0]$ ./bin/elasticsearch
[2016-03-01 10:32:02,958][INFO ][node ] [Landslide] version[2.0.0], pid[11109], build[de54438/2015-10-22T08:09:48Z]
[2016-03-01 10:32:02,959][INFO ][node ] [Landslide] initializing ...
Exception in thread "main" java.lang.IllegalStateException: Unable to initialize plugins
Likely root cause: java.nio.file.FileSystemException: /home/elasticsearch/es/elasticsearch-2.0.0/plugins/ik.zip/plugin-descriptor.properties: Not a directory
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:91)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:214)
at java.nio.file.Files.newByteChannel(Files.java:317)
at java.nio.file.Files.newByteChannel(Files.java:363)
at java.nio.file.spi.FileSystemProvider.newInputStream(FileSystemProvider.java:380)
at java.nio.file.Files.newInputStream(Files.java:108)
at org.elasticsearch.plugins.PluginInfo.readFromProperties(PluginInfo.java:86)
at org.elasticsearch.plugins.PluginsService.getPluginBundles(PluginsService.java:306)
at org.elasticsearch.plugins.PluginsService.(PluginsService.java:112)
at org.elasticsearch.node.Node.(Node.java:144)
at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:145)
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:170)
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:270)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:35)
我们从启动就看的出来，IK分词器安装成功。
[2016-03-01 10:34:28,803][INFO ][plugins ] [Big Wheel] loaded [analysis-ik], sites [head]
测试：
http://123.57.163.79:9200/_analyze?analyzer=ik&pretty=true&text=sojson在线工具真好用