public void Helper()
{
var node = new Uri("http://myserver:9200");
var settings = new ConnectionSettings(node);
var client = new ElasticClient(settings);
var settings2 = new ConnectionSettings()
.DefaultIndex("defaultindex");
//创建索引
var descriptor = new CreateIndexDescriptor("db_student")
.Settings(s => s.NumberOfShards(5).NumberOfReplicas(1));
client.CreateIndex(descriptor);
//删除索引
var descriptor2 = new DeleteIndexDescriptor("db_student").Index("db_student");
client.DeleteIndex(descriptor2);
//删除指定索引所在节点下的所有索引
var descriptor3 = new DeleteIndexDescriptor("db_student").AllIndices();
var descriptor4 = new CreateIndexDescriptor("db_student")
.Settings(s => s.NumberOfShards(5).NumberOfReplicas(1))
.Mappings(ms => ms
.Map <Student>(m => m.AutoMap()));
client.CreateIndex(descriptor4);
}
/// <summary>
/// 删除指定索引所在节点下的所有索引
/// </summary>
/// <param name="indexName">Index索引名称</param>
/// <returns>是否删除成功</returns>
public bool DeleteIndexAll(string indexName)
{
if (this.IndexExists(indexName))
{
var descriptor = new DeleteIndexDescriptor("db_student").AllIndices();
elasticClient.DeleteIndex(descriptor);
}
return(this.IndexExists(indexName));
}
/// <summary>
/// 删除索引
/// </summary>
/// <param name="indexName">Index索引名称</param>
/// <returns>是否删除成功</returns>
public bool DeleteIndex(string indexName)
{
if (this.IndexExists(indexName))
{
var descriptor = new DeleteIndexDescriptor(indexName).Index(indexName);
elasticClient.DeleteIndex(descriptor);
}
return(this.IndexExists(indexName));
}
public override async Task DestroyAsync(CancellationToken cancellationToken)
{
// The request.
IDeleteIndexRequest request = new DeleteIndexDescriptor(Indices.Index <T>());
// Delete and return the response.
IDeleteIndexResponse response = await ElasticClient
.DeleteIndexAsync(request, cancellationToken).ConfigureAwait(false);
// If it failed, throw an exception.
response.ThrowIfError();
}
/// <summary>
/// 删除单个或多个索引(如果多个索引中有不存在的索引，执行失败)
/// </summary>
public bool DeleteIndexes(IEnumerable <string> indexes)
{
AssertIndexes(indexes);
var result = false;
this.Using((client) =>
{
string indexsString = string.Join(",", indexes);
var descriptor = new DeleteIndexDescriptor(indexsString);
result = client.DeleteIndex(descriptor).Acknowledged;
});
return(result);
}
