索引管理操作
编辑索引管理操作编辑
索引管理操作允许您管理 Elasticsearch 集群中的索引，例如创建、删除和更新索引及其映射/设置。
创建索引编辑
索引操作都包含在一个独立的命名空间中，与根客户端对象上的其他方法分离。例如，让我们创建一个新索引
$client = ClientBuilder::create()->build();
$params = [
'index' => 'my_index'
];
// Create the index
$response = $client->indices()->create($params);
您可以指定通常包含在新索引创建 API 中的任何参数。所有通常放在请求体中的参数都位于 body 参数中
$client = ClientBuilder::create()->build();
$params = [
'index' => 'my_index',
'body' => [
'settings' => [
'number_of_shards' => 3,
'number_of_replicas' => 2
],
'mappings' => [
'_source' => [
'enabled' => true
],
'properties' => [
'first_name' => [
'type' => 'keyword'
],
'age' => [
'type' => 'integer'
]
]
]
]
];
// Create the index with mappings and settings now
$response = $client->indices()->create($params);
创建索引（高级示例）编辑
这是一个更复杂的创建索引的示例，展示了如何定义分析器、分词器、过滤器和索引设置。虽然本质上与前面的示例相同，但更复杂的示例对于客户端的“现实世界”使用可能会有所帮助，因为这种特定的语法很容易出错。
$params = [
'index' => 'reuters',
'body' => [
'settings' => [
'number_of_shards' => 1,
'number_of_replicas' => 0,
'analysis' => [
'filter' => [
'shingle' => [
'type' => 'shingle'
]
],
'char_filter' => [
'pre_negs' => [
'type' => 'pattern_replace',
'pattern' => '(\\w+)\\s+((?i:never|no|nothing|nowhere|noone|none|not|havent|hasnt|hadnt|cant|couldnt|shouldnt|wont|wouldnt|dont|doesnt|didnt|isnt|arent|aint))\\b',
'replacement' => '~$1 $2'
],
'post_negs' => [
'type' => 'pattern_replace',
'pattern' => '\\b((?i:never|no|nothing|nowhere|noone|none|not|havent|hasnt|hadnt|cant|couldnt|shouldnt|wont|wouldnt|dont|doesnt|didnt|isnt|arent|aint))\\s+(\\w+)',
'replacement' => '$1 ~$2'
]
],
'analyzer' => [
'reuters' => [
'type' => 'custom',
'tokenizer' => 'standard',
'filter' => ['lowercase', 'stop', 'kstem']
]
]
]
],
'mappings' => [
'properties' => [
'title' => [
'type' => 'text',
'analyzer' => 'reuters',
'copy_to' => 'combined'
],
'body' => [
'type' => 'text',
'analyzer' => 'reuters',
'copy_to' => 'combined'
],
'combined' => [
'type' => 'text',
'analyzer' => 'reuters'
],
'topics' => [
'type' => 'keyword'
],
'places' => [
'type' => 'keyword'
]
]
]
]
];
$client->indices()->create($params);
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删除索引编辑
删除索引非常简单
$params = ['index' => 'my_index']; $response = $client->indices()->delete($params);
PUT 设置 API编辑
PUT 设置 API 允许您修改任何动态的索引设置
$params = [
'index' => 'my_index',
'body' => [
'settings' => [
'number_of_replicas' => 0,
'refresh_interval' => -1
]
]
];
$response = $client->indices()->putSettings($params);
GET 设置 API编辑
GET 设置 API 显示一个或多个索引的当前配置设置
// Get settings for one index
$params = ['index' => 'my_index'];
$response = $client->indices()->getSettings($params);
// Get settings for several indices
$params = [
'index' => [ 'my_index', 'my_index2' ]
];
$response = $client->indices()->getSettings($params);
PUT 映射 API编辑
PUT 映射 API 允许您修改或添加到现有索引的映射。
// Set the index and type
$params = [
'index' => 'my_index',
'body' => [
'_source' => [
'enabled' => true
],
'properties' => [
'first_name' => [
'type' => 'text',
'analyzer' => 'standard'
],
'age' => [
'type' => 'integer'
]
]
]
];
// Update the index mapping
$client->indices()->putMapping($params);
GET 映射 API编辑
GET 映射 API 返回有关您的索引的映射详细信息。根据您要检索的映射，您可以指定一个或多个索引
// Get mappings for all indices
$response = $client->indices()->getMapping();
// Get mappings in 'my_index'
$params = ['index' => 'my_index'];
$response = $client->indices()->getMapping($params);
// Get mappings for two indices
$params = [
'index' => [ 'my_index', 'my_index2' ]
];
$response = $client->indices()->getMapping($params);
索引命名空间中的其他 API编辑
索引命名空间中还有许多其他 API 允许您管理 Elasticsearch 索引（添加/删除模板、刷新段、关闭索引等）。
如果您使用具有自动完成功能的 IDE，您应该能够通过键入以下内容轻松浏览索引命名空间
$client->indices()->
并浏览可用方法列表。或者，浏览 \Elasticsearch\Namespaces\Indices.php 文件将显示您所有可用方法调用的完整列表（以及每个方法的注释中的参数列表）。