elasticsearch插件 x-pack.security组件的使用

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离线安装x-pack：

下载es对应的相应版本的x-pack，修改版本号即可通过官方链接下载：

https://artifacts.elastic.co/downloads/packs/x-pack/x-pack-6.1.1.zip

下载后放到指定位置如/usr/x-pack-6.1.1.zip并到es安装目录下运行：

./bin/elasticsearch-plugin install file:///usr/x-pack-6.1.1.zip

安装完重启即可，默认用户 elasitc:changeme

restful访问方式改为 curl -u elastic：changeme -XGET .......

安装后使用head修改yml文件：

head需要：

http.cors.enabled: true
http.cors.allow-origin:’*’

安装x-pack后需要：

http.cors.allow-headers: “Authorization”

访问head格式更改为：

http://localhost:9100/?auth_user=elastic&auth_password=changeme

破解x-pack参考：

http://blog.csdn.net/mvpboss1004/article/details/65445023

http://blog.csdn.net/qq_20641565/article/details/78286894

java客户端api

maven pom.xml导入（maven库里没有xpack包则需要用es官网的maven库）：

<repositories>
       <repository>
           <id>elasticsearch-releases</id>
           <url>https://artifacts.elastic.co/maven</url>
           <releases>
               <enabled>true</enabled>
           </releases>
           <snapshots>
               <enabled>false</enabled>
           </snapshots>
       </repository>
   </repositories>
<dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
       <groupId>org.elasticsearch</groupId>
       <artifactId>elasticsearch</artifactId>
       <version>5.1.2</version>
   </dependency>
   <dependency>
       <groupId>org.elasticsearch.client</groupId>
       <artifactId>transport</artifactId>
       <version>5.1.2</version>
   </dependency>
   <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-core</artifactId>
       <version>2.7</version>
   </dependency>
   <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-api</artifactId>
       <version>2.7</version>
   </dependency>
    <dependency>
       <groupId>org.elasticsearch.client</groupId>
       <artifactId>x-pack-transport</artifactId>
       <version>5.2.0</version>
   </dependency>
</dependencies>

连接es集群：

Settings settings = Settings.builder()
                .put("cluster.name", "my-application")
               .put("xpack.security.transport.ssl.enabled", false)
               .put("xpack.security.user", "elastic:changeme")
               .put("client.transport.sniff", true)
               .build();
client = new PreBuiltXPackTransportClient(settings)
               .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("127.0.0.1"), 9300));
XPackClient xClient = new XPackClient(client);

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