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C#

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// Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
//
// 本项目主要遵循 MIT 许可证和 Apache 许可证(版本 2.0)进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
//
// 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动!任何基于本项目二次开发而产生的一切法律纠纷和责任,我们不承担任何责任!
using Elastic.Clients.Elasticsearch;
using Elastic.Transport;
namespace Admin.NET.Core;
public class ElasticSearchClientFactory
{
/// <summary>
/// 创建 ES 客户端(通用方法)
/// </summary>
/// <typeparam name="TOptions">配置类型(支持通用或场景专用)</typeparam>
/// <param name="configPath">配置文件路径(如 "ElasticSearch:Logging"</param>
/// <returns>ES 客户端实例(或 null if 未启用)</returns>
public static ElasticsearchClient? CreateClient<TOptions>(string configPath) where TOptions : ElasticSearchOptions, new()
{
// 从配置文件读取当前场景的配置
var options = App.GetConfig<TOptions>(configPath);
if (options == null)
throw Oops.Oh($"未找到{configPath}配置项");
if (!options.Enabled)
return null;
// 验证服务地址
if (options.ServerUris == null || !options.ServerUris.Any())
throw new ArgumentException($"ES 配置 {configPath} 未设置 ServerUris");
// 构建连接池(支持集群)
var uris = options.ServerUris.Select(uri => new Uri(uri)).ToList();
var connectionPool = new StaticNodePool(uris);
var connectionSettings = new ElasticsearchClientSettings(connectionPool)
.DefaultIndex(options.DefaultIndex) // 设置默认索引
.DisableDirectStreaming() // 开启请求/响应日志,方便排查问题
.OnRequestCompleted(response =>
{
if (response.HttpStatusCode == 401)
{
Console.WriteLine("ES 请求被拒绝:未提供有效认证信息");
}
});
// 配置认证
ConfigureAuthentication(connectionSettings, options);
// 配置 HTTPS 证书指纹
if (!string.IsNullOrEmpty(options.Fingerprint))
connectionSettings.CertificateFingerprint(options.Fingerprint);
return new ElasticsearchClient(connectionSettings);
}
/// <summary>
/// 配置认证(通用逻辑)
/// </summary>
private static void ConfigureAuthentication(ElasticsearchClientSettings settings, ElasticSearchOptions options)
{
switch (options.AuthType)
{
case ElasticSearchAuthTypeEnum.Basic:
settings.Authentication(new BasicAuthentication(options.User, options.Password));
break;
case ElasticSearchAuthTypeEnum.ApiKey:
settings.Authentication(new ApiKey(options.ApiKey));
break;
case ElasticSearchAuthTypeEnum.Base64ApiKey:
settings.Authentication(new Base64ApiKey(options.Base64ApiKey));
break;
case ElasticSearchAuthTypeEnum.None:
// 无需认证
break;
default:
throw new ArgumentOutOfRangeException(nameof(options.AuthType));
}
}
}