Elasticsearch:Jira 连接器教程第一部分
作者:来自 Elastic Gustavo Llermaly

将我们的 Jira 内容索引到 Elaasticsearch 中以创建统一的数据源并使用文档级别安全性进行搜索。
在本文中,我们将回顾 Elastic Jira 原生连接器的一个用例。我们将使用一个模拟项目,其中一家银行正在开发一款汇款应用,需要将 Jira 中的信息集成到 Elastic 中。
原生连接器允许我们从票据、任务和其他文档中获取 Elastic 集群信息,集中数据并启用高级搜索功能。
使用此连接器的主要好处是:
- Jira 中的数据与 Elasticsearch 同步。
- 访问高级搜索功能。
- 文档级安全性 (DLS) 匹配源安全性。你只能搜索 Jira 中允许你查看的内容。
步骤
- 配置 Jira 连接器
- 将文档索引到 Elasticsearch
- 查询数据
- 文档级安全性 (document level security - DLS)
配置 Jira 连接器
首先,你需要从 Jira 获取 API token 以连接到 Elasticsearch。转到此链接了解如何创建它。
将其命名为 “elastic-connector”。它应该如下所示:

获取 token 并进入 Kibana 仪表板。然后,转到原生连接器并选择 New Jira Cloud connector。
https://<YOUR_KIBANA_URL>/app/enterprise_search/content/connectors/new_connector?service_type=jira&connector_type=native
用 Kibana 端点替换 YOUR_KIBANA_URL。

将连接器命名为 “bank”,然后点击 “Create and attach an index named bank”,即可创建一个同名的新索引。

完成了!现在我们需要配置我们的 Jira 数据。

由于我们不会使用自己的 SSL 证书,因此我们将保持 “Enable SSL” 关闭。
你可以在官方文档中查看每个字段的详细信息。
激活文档级安全性 (DLS),以便你获得有权查看文档的用户和组。
正确配置连接器后,你可以继续同步数据,如下所示。从 Jira 获取数据可能需要几分钟。
- 完整内容(Full Content):索引所有 Jira 文档。
- 增量内容(Incremental Content):仅索引自上次完整内容同步以来的更改。
- 访问控制(Access Control):在安全索引中索引 Jira 用户以激活 DLS。

我们可以检查连接器的概述来查看同步是否成功。

在 “Documents” 选项卡中,我们可以准确地看到使用连接器获取的数据。第一次同步的对象是:
- Projects
- Issues
- Attachments

将文档索引到 Elasticsearch
我们不仅限于跨连接器文档进行搜索。Elasticsearch 允许你使用单个查询搜索多个索引。
在我们的示例中,我们将其他文档索引到 galactic_documents 索引中,以了解搜索如何与多个数据源配合使用:
- GBFF 合规手册
- Galactic Banking App 用户指南
- 技术规格报告
但在索引之前,我们将为每个字段创建优化映射:
PUT /galactic_documents
{"mappings": {"properties": {"document_id": {"type": "keyword"},"title": {"type": "text","fields": {"raw": {"type": "keyword"}}},"content": {"type": "text"},"release_date": {"type": "date","format": "yyyy-MM-dd"},"page_count": {"type": "integer"},"tags": {"type": "keyword"}}}
}
配置映射后,我们现在可以索引:
POST galactic_documents/_bulk
{ "index": { "_index": "galactic_documents", "_id": "1" } }
{ "document_id": "GBFF-001", "title": "Compliance Manual of the GBFF", "content": "This document sets forth the compliance standards for intergalactic financial entities: Quantum-level data encryption to guarantee security in all transactions. Mandatory multi-factor authentication for all users and administrators. Quarterly reviews of security policies and access audit logs.", "release_date": "2024-01-01", "page_count": 5, "tags": ["compliance", "security"] }
{ "index": { "_index": "galactic_documents", "_id": "2" } }
{ "document_id": "GBFF-002", "title": "User Guide for the Galactic Banking App", "content": "Welcome to the Galactic Banking application by Interstellar Finance Corp. Here you can: Transfer galactic credits to any registered account across the Milky Way. Check your balance and manage your investments in real-time. Access interplanetary loans with ease. For your security, use multi-factor authentication each time you log in.", "release_date": "2024-01-01", "page_count": 3, "tags": ["user guide", "application"] }
{ "index": { "_index": "galactic_documents", "_id": "3" } }
{ "document_id": "GBFF-003", "title": "Technical Specifications Report - Galactic Banking Project", "content": "This report details the technical architecture of the Galactic Banking application: Microservices-based backend for scalability and performance. Secure communication protocols utilizing quantum encryption. Transaction management adapted to environments with gravity variations and time dilation.", "release_date": "2024-01-01", "page_count": 7, "tags": ["technical", "specifications", "architecture"] }
查询数据
现在我们有了 Jira 对象和文档,我们可以一起搜索它们。
GET bank,galactic_documents/_search
{"query": {"multi_match": {"query": "galactic moon","fields": ["content","title","*description","*summary"]}}
}
查询 “galactic moon” 将为我们获取 Jira 对象和我们索引的文档:
{"took": 3,"timed_out": false,"_shards": {"total": 3,"successful": 3,"skipped": 0,"failed": 0},"hits": {"total": {"value": 3,"relation": "eq"},"max_score": 1.2613049,"hits": [{"_index": "bank","_id": "Marketing Mars-MM-2","_score": 1.2613049,"_source": {"Type": "Task","Custom_Fields": {"Satisfaction": null,"Approvals": null,"Change reason": null,"Epic Link": null,"Actual end": null,"Design": null,"Campaign assets": null,"Department": null,"Story point estimate": null,"Approver groups": null,"[CHART] Date of First Response": null,"Request Type": null,"Campaign goals": null,"Project overview key": null,"Related projects": null,"Campaign type": null,"Impact": null,"Request participants": [],"Locked forms": null,"Time to first response": null,"Work category": null,"Audience": null,"Open forms": null,"Details": null,"Sprint": null,"Stakeholders": null,"Marketing asset type": null,"Submitted forms": null,"Start date": null,"Actual start": null,"Category": null,"Change risk": null,"Target start": null,"Issue color": null,"Parent Link": {"hasEpicLinkFieldDependency": false,"showField": false,"nonEditableReason": {"reason": "EPIC_LINK_SHOULD_BE_USED","message": "To set an epic as the parent, use the epic link instead"}},"Format": null,"Target end": null,"Approvers": null,"Team": null,"Change type": null,"Satisfaction date": null,"Request language": null,"Amount": null,"Rank": "0|i0003j:","Affected services": null,"Type": null,"Time to resolution": null,"Total forms": null,"[CHART] Time in Status": null,"Organizations": [],"Flagged": null,"Project overview status": null},"Issue": {"statuscategorychangedate": "2024-11-01T17:52:30.550-0300","issuetype": {"avatarId": 10318,"hierarchyLevel": 0,"name": "Task","self": "https://xxxx.atlassian.net/rest/api/2/issuetype/10017","description": "A small, distinct piece of work.","entityId": "f30ea676-7b3d-44ad-9858-558081742a2e","id": "10017","iconUrl": "https://xxxx.atlassian.net/rest/api/2/universal_avatar/view/type/issuetype/avatar/10318?size=medium","subtask": false},"components": [],"timespent": null,"timeoriginalestimate": null,"project": {"simplified": true,"avatarUrls": {"48x48": "https://xxxx.atlassian.net/rest/api/2/universal_avatar/view/type/project/avatar/10418","24x24": "https://xxxx.atlassian.net/rest/api/2/universal_avatar/view/type/project/avatar/10418?size=small","16x16": "https://xxxx.atlassian.net/rest/api/2/universal_avatar/view/type/project/avatar/10418?size=xsmall","32x32": "https://xxxx.atlassian.net/rest/api/2/universal_avatar/view/type/project/avatar/10418?size=medium"},"name": "Marketing Mars","self": "https://xxxx.atlassian.net/rest/api/2/project/10003","id": "10003","projectTypeKey": "business","key": "MM"},"description": null,"fixVersions": [],"aggregatetimespent": null,"resolution": null,"timetracking": {},"security": null,"aggregatetimeestimate": null,"attachment": [],"resolutiondate": null,"workratio": -1,"summary": "Conquer the moon","issuerestriction": {"issuerestrictions": {},"shouldDisplay": true},"watches": {"self": "https://xxxx.atlassian.net/rest/api/2/issue/MM-2/watchers","isWatching": true,"watchCount": 1},"lastViewed": "2024-11-01T17:52:34.925-0300","creator": {"accountId": "712020:88983800-6c97-469a-9451-79c2dd3732b5","emailAddress": "contornan_cliche.0y@icloud.com","avatarUrls": {"48x48": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png","24x24": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png","16x16": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png","32x32": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png"},"displayName": "Tomas Murua","accountType": "atlassian","self": "https://xxxx.atlassian.net/rest/api/2/user?accountId=712020%3A88983800-6c97-469a-9451-79c2dd3732b5","active": true,"timeZone": "Chile/Continental"},"subtasks": [],"created": "2024-11-01T17:52:30.289-0300","reporter": {"accountId": "712020:88983800-6c97-469a-9451-79c2dd3732b5","emailAddress": "contornan_cliche.0y@icloud.com","avatarUrls": {"48x48": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png","24x24": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png","16x16": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png","32x32": "https://secure.gravatar.com/avatar/f098101294d1a0da282bb2388df8c257?d=https%3A%2F%2Favatar-management--avatars.us-west-2.prod.public.atl-paas.net%2Finitials%2FTM-3.png"},"displayName": "Tomas Murua","accountType": "atlassian","self": "https://xxxx.atlassian.net/rest/api/2/user?accountId=712020%3A88983800-6c97-469a-9451-79c2dd3732b5","active": true,"timeZone": "Chile/Continental"},"aggregateprogress": {"total": 0,"progress": 0},"priority": {"name": "Medium","self": "https://xxxx.atlassian.net/rest/api/2/priority/3","iconUrl": "https://xxxx.atlassian.net/images/icons/priorities/medium.svg","id": "3"},"labels": [],"environment": null,"timeestimate": null,"aggregatetimeoriginalestimate": null,"versions": [],"duedate": null,"progress": {"total": 0,"progress": 0},"issuelinks": [],"votes": {"hasVoted": false,"self": "https://xxxx.atlassian.net/rest/api/2/issue/MM-2/votes","votes": 0},"comment": {"total": 0,"comments": [],"maxResults": 0,"self": "https://xxxx.atlassian.net/rest/api/2/issue/10018/comment","startAt": 0},"assignee": null,"worklog": {"total": 0,"maxResults": 20,"startAt": 0,"worklogs": []},"updated": "2024-11-01T17:52:42.711-0300","status": {"name": "To Do","self": "https://xxxx.atlassian.net/rest/api/2/status/10014","description": "","iconUrl": "https://xxxx.atlassian.net/","id": "10014","statusCategory": {"colorName": "blue-gray","name": "To Do","self": "https://xxxx.atlassian.net/rest/api/2/statuscategory/2","id": 2,"key": "new"}}},"id": "Marketing Mars-MM-2","_timestamp": "2024-11-01T17:52:42.711-0300","Key": "MM-2","_allow_access_control": ["account_id:712020:88983800-6c97-469a-9451-79c2dd3732b5","name:Tomas-Murua"]}},{"_index": "galactic_documents","_id": "2","_score": 0.61183906,"_source": {"document_id": "GBFF-002","title": "User Guide for the Galactic Banking App","content": "Welcome to the Galactic Banking application by Interstellar Finance Corp. Here you can: Transfer galactic credits to any registered account across the Milky Way. Check your balance and manage your investments in real-time. Access interplanetary loans with ease. For your security, use multi-factor authentication each time you log in.","release_date": "2024-01-01","page_count": 3,"tags": ["user guide","application"]}},{"_index": "galactic_documents","_id": "3","_score": 0.5029222,"_source": {"document_id": "GBFF-003","title": "Technical Specifications Report - Galactic Banking Project","content": "This report details the technical architecture of the Galactic Banking application: Microservices-based backend for scalability and performance. Secure communication protocols utilizing quantum encryption. Transaction management adapted to environments with gravity variations and time dilation.","release_date": "2024-01-01","page_count": 7,"tags": ["technical","specifications","architecture"]}}]}
}
如果文档太长,你可以将选项 _source 添加到查询中,以仅包含你需要的字段。如果你只想删除一些字段,我们将在本系列的第二部分介绍该选项。
文档级安全性 (DLS)
我们现在将配置文档级安全性 (DLS),以将 Jira 权限与 Elasticsearch 中的权限相匹配,以便用户搜索时只能看到他们在 Jira 中被允许看到的内容。
首先,我们将转到 Elastic Cloud 中连接器的控制面板,然后单击 Access Control Sync。

此同步将带来 Jira 用户的访问和权限信息。为了测试这一点,我创建了另一个 Jira 板(board),但用户 “Gustavo” 无权访问该板。

注意:创建板后,不要忘记运行内容同步。你可以运行一次性同步,也可以按计划运行。
让我们开始检查新板中的文档是否存在:
GET bank/_search
{"_source": ["Issue.summary"],"query": {"match": {"Issue.project.name": "Marketing Mars"}}
}
我们可以有效地看到以下问题:
{"took": 2,"timed_out": false,"_shards": {"total": 2,"successful": 2,"skipped": 0,"failed": 0},"hits": {"total": {"value": 3,"relation": "eq"},"max_score": 0.7473189,"hits": [{"_index": "bank","_id": "Marketing Mars-MM-1","_score": 0.7473189,"_source": {"Issue": {"summary": "Conquer Mars"}}},{"_index": "bank","_id": "Marketing Mars-MM-3","_score": 0.7473189,"_source": {"Issue": {"summary": "Conquering Earth"}}},{"_index": "bank","_id": "Marketing Mars-MM-2","_score": 0.7473189,"_source": {"Issue": {"summary": "Conquer the moon"}}}]}
}
但是,由于用户 “Gustavo” 没有访问权限,因此他应该无法看到它们。
让我们在 ACL 过滤器索引中查找用户的文档以查看他们的权限。
GET .search-acl-filter-bank/_search
响应:
{"_index": ".search-acl-filter-bank","_id": "63c04b092341bff4fff6e0cb","_score": 1,"_source": {"created_at": "2024-11-01T23:19:35.784996+00:00","id": "63c04b092341bff4fff6e0cb","_timestamp": "2024-11-01T05:42:04.410478+00:00","identity": {"account_id": "account_id:63c04b092341bff4fff6e0cb","email_address": null,"display_name": "name:Gustavo","locale": "locale:en_US"},"query": {"template": {"source": """{"bool": {"should": [{"bool": {"must_not": {"exists": {"field": "_allow_access_control"}}}},{"terms": {"_allow_access_control.enum": {{#toJson}}access_control{{/toJson}}}}]}}""","params": {"access_control": ["account_id:63c04b092341bff4fff6e0cb","group_id:d3f28403-7e99-4262-8f11-77a75bcd33d8","role_key:jira-software"]}}}}
}
该索引包括用户 ID 及其所有 Jira 组。我们需要将用户访问控制中的内容与每个文档中的字段 _allowed_access_control 进行匹配。
我们将使用以下命令为 Gustavo 创建 API 密钥。你必须从上一步复制 query.template 值:
POST /_security/api_key
{"name": "gustavo","expiration": "30d","role_descriptors": {"jira-role": {"index": [{"names": ["bank","galactic_documents"],"privileges": ["read","view_index_metadata"],"query": {"template": {"params": {"access_control": ["account_id:63c04b092341bff4fff6e0cb","group_id:d3f28403-7e99-4262-8f11-77a75bcd33d8","role_key:jira-software"]},"source": """{"bool": {"should": [{"bool": {"must_not": {"exists": {"field": "_allow_access_control"}}}},{"terms": {"_allow_access_control.enum": {{#toJson}}access_control{{/toJson}}}}]}}"""}}}]}}
}
请注意,我们仅通过此选项授予对本文中索引的访问权限。
为 Gustavo 创建 API 密钥的响应如下:
{"id": "yLa1FJMBU4bZPaw5Stnl","name": "gustavo","expiration": 1733811245816,"api_key": "UrGdsnDFSyGxjQvLayw5jQ","encoded": "eUxhMUZKTUJVNGJaUGF3NVN0bmw6VXJHZHNuREZTeUd4alF2TGF5dzVqUQ=="
}
你可以使用 curl 来测试我们是否可以使用 API KEY 运行搜索,并且它不会从 Marketing board 获取信息,因为 Gustavo 无权访问它。
curl --location --request GET 'https://interstellar-finance-corp.es.us-central1.gcp.cloud.es.io/bank/_search' \
--header 'Authorization: ApiKey eUxhMUZKTUJVNGJaUGF3NVN0bmw6VXJHZHNuREZTeUd4alF2TGF5dzVqUQ==' \
--header 'Content-Type: application/json' \
--data '{"_source": ["Issue.summary"],"query": {"match": {"Issue.project.name": "Marketing Mars"}}
}'
响应:
{"took": 0,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 0,"relation": "eq"},"max_score": null,"hits": []}
}
我们可以看到,Gustavo 没有获得任何信息,因为他没有访问权限。现在,让我们用他被允许查看的 board 文件进行测试:
curl --location --request GET 'https://interstellar-finance-corp.es.us-central1.gcp.cloud.es.io/bank/_search?pretty=true' \
--header 'Authorization: ApiKey eUxhMUZKTUJVNGJaUGF3NVN0bmw6VXJHZHNuREZTeUd4alF2TGF5dzVqUQ==' \
--header 'Content-Type: application/json' \
--data '{"_source": ["Issue.summary"],"query": {"match": {"Issue.project.name": "Galactic Banking Project"}}
}'
响应:
{"took" : 7,"timed_out" : false,"_shards" : {"total" : 2,"successful" : 2,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 3,"relation" : "eq"},"max_score" : 3.1784885,"hits" : [{"_index" : "bank","_id" : "Galactic Banking Project-GBP-3","_score" : 3.1784885,"_source" : {"Issue" : {"summary" : "Intergalactic Security and Compliance"}}},{"_index" : "bank","_id" : "Galactic Banking Project-GBP-2","_score" : 0.5469647,"_source" : {"Issue" : {"summary" : "Bank Application Frontend"}}},{"_index" : "bank","_id" : "Galactic Banking Project-GBP-1","_score" : 0.5469647,"_source" : {"Issue" : {"summary" : "Development of API for International Transfers"}}}]}
}
结论
如你所见,将 Elasticsearch 与 Jira 集成有许多好处,例如能够对你正在处理的所有项目进行统一搜索,以及能够在多个数据源中运行更高级的搜索。添加的 DLS 是一种快速简便的方法,可确保用户保持他们在原始源中已有的访问权限。
想要获得 Elastic 认证?了解下一次 Elasticsearch 工程师培训何时开始!
Elasticsearch 包含新功能,可帮助你为你的用例构建最佳搜索解决方案。深入了解我们的示例笔记本以了解更多信息,开始免费云试用,或立即在你的本地机器上试用 Elastic。
原文:Jira connector tutorial part I - Elasticsearch Labs
相关文章:
Elasticsearch:Jira 连接器教程第一部分
作者:来自 Elastic Gustavo Llermaly 将我们的 Jira 内容索引到 Elaasticsearch 中以创建统一的数据源并使用文档级别安全性进行搜索。 在本文中,我们将回顾 Elastic Jira 原生连接器的一个用例。我们将使用一个模拟项目,其中一家银行正在开发…...
ThreeJs功能演示——几何体操作导入导出
1、内部创建几何体导出编辑能力 1)支持内部创建的面、正方体、球体 内部创建物体时,如果是三维物体,要创建集合形状geometry,和对应的材质material。再一起创建一个三维物体。 // 存储创建的几何体列表const geometries [];cre…...
LeetCode::2270. 分割数组的方案数
2270. 分割数组的方案数 思路 前缀和 提示 给你一个下标从 0 开始长度为 n 的整数数组 nums 。 如果以下描述为真,那么 nums 在下标 i 处有一个 合法的分割 : 前 i 1 个元素的和 大于等于 剩下的 n - i - 1 个元素的和。下标 i 的右边 至少有一个 元…...
elementui表单验证,数据层级过深验证失效
先看示例代码,代码为模拟动态获取表单数据,然后动态添加rules验证规则,示例表单内输入框绑定form内第四层: <template><el-form :model"form" :rules"rules" ref"ruleForm" label-width&…...
【Java】LinkedHashMap (LRU)淘汰缓存的使用
文章目录 **1. initialCapacity(初始容量)****2. loadFactor(加载因子)****3. accessOrder(访问顺序)****完整参数解释示例****示例验证** LinkedHashMap 在 Java 中可维护元素插入或访问顺序,并…...
CancerGPT :基于大语言模型的罕见癌症药物对协同作用少样本预测研究
今天我们一起来剖析一篇发表于《npj Digital Medicine》的论文——《CancerGPT for few shot drug pair synergy prediction using large pretrained language models》。该研究聚焦于一个极具挑战性的前沿领域:如何利用大语言模型(LLMs)在数…...
《汽车维护与修理》是什么级别的期刊?是正规期刊吗?能评职称吗?
问题解答: 问:《汽车维护与修理》是不是核心期刊? 答:不是,是知网收录的正规学术期刊。 问:《汽车维护与修理》级别? 答:国家级。主管单位:中国汽车维修行业协会 …...
tomcat状态一直是Exited (1)
docker run -di -p 80:8080 --nametomcat001 你的仓库地址/tomcat:9执行此命令后tomcat一直是Exited(1)状态 解决办法: 用以下命令创建运行 docker run -it --name tomcat001 -p 80:8080 -d 你的仓库地址/tomcat:9 /bin/bash最终结果 tomcat成功启动...
消息中间件的基础概念入门
目录 一、什么是消息中间件 1.1、简介 1.2、消息中间件的主要作用 解耦合 异步通信 负载均衡 可靠性与持久性 消息路由与调度 削峰 事务支持 监控与审计 跨平台和跨语言支持 二、常用消息中间件对比 2.1、 RabbitMQ 2.1.1、特点 2.1.2、适用场景 2.2、Apache K…...
基于Web的宠物医院看诊系统设计与实现(源码+定制+开发)在线预约平台、宠物病历管理、医生诊疗记录、宠物健康数据分析 宠物就诊预约、病历管理与健康分析
博主介绍: ✌我是阿龙,一名专注于Java技术领域的程序员,全网拥有10W粉丝。作为CSDN特邀作者、博客专家、新星计划导师,我在计算机毕业设计开发方面积累了丰富的经验。同时,我也是掘金、华为云、阿里云、InfoQ等平台…...
Excel数据叠加生成新DataFrame:操作指南与案例
目录 一、准备工作 二、读取Excel文件 三、数据叠加 四、处理重复数据(可选) 五、保存新DataFrame到Excel文件 六、案例演示 七、注意事项 八、总结 在日常数据处理工作中,我们经常需要将不同Excel文档中的数据整合到一个新的DataFrame中,以便进行进一步的分析和处…...
Web 开发入门之旅:从静态页面到全栈应用的第一步
Web 开发入门之旅:从静态页面到全栈应用的第一步 在当今互联网飞速发展的时代,掌握 Web 开发技能已成为众多技术爱好者和职场人士的必修课。然而,对于初学者而言,面对繁杂的技术栈和庞大的学习资源,往往感到无从下手。…...
WebSocket实现分布式的不同方案对比
引言 随着实时通信需求的日益增长,WebSocket作为一种基于TCP的全双工通信协议,在实时聊天、在线游戏、数据推送等场景中得到了广泛应用。然而,在分布式环境下,如何实现WebSocket的连接管理和消息推送成为了一个挑战。本文将对比几…...
基于注意力机制的端到端合成语音检测
End-to-end Synthetic Speech Detection Based on Attention Mechanism 摘要: 五种轻量级注意力模块改为适用于语音序列的 通道注意力机制和 一维空间注意力机制 ASVspoof2019测试集的 等错误率和 最小串联检测代价函数都有所降低 池化层之前嵌入CBAM、ECA的模型测试…...
MySQL NaviCat 安装及配置教程(Windows)【安装】
文章目录 一、 MySQL 下载 1. 官网下载2. 其它渠道 二、 MySQL 安装三、 MySQL 验证及配置四、 NaviCat 下载 1. 官网下载2. 其它渠道 五、 NaviCat 安装六、 NaviCat 逆向工程 软件 / 环境安装及配置目录 一、 MySQL 下载 1. 官网下载 安装地址:https://www.m…...
微信小程序:播放音频
在小程序开发中,音频播放是一个重要的功能。本文将详细介绍小程序音频播放的相关知识点,帮助开发者更好地掌握小程序音频播放的实现方法。 一、小程序音频播放的基本流程 在小程序中,音频播放的基本流程如下: 获取音频数据&#…...
Ubuntu安装K8S
第一步: 安装docker Install Docker #注意docker是早期的名称已经过时了,因此请使用如下命令,一步到位安装docker-ce。 第二步:设置K8S源: (大陆使用aliyun源,大陆外使用google源)…...
独立同分布时,联合概率密度函数等于边缘概率密度函数乘积
在概率论中,独立同分布(i.i.d.)指的是多个随机变量既独立又服从相同的概率分布。对于一组随机变量 (X_1, X_2, \dots, X_n),若它们是独立同分布的,那么它们的联合概率密度函数 (p(x_1, x_2, \dots, x_n)) 就可以表示为…...
半导体数据分析: 玩转WM-811K Wafermap 数据集(三) AI 机器学习
前面我们已经通过两篇文章,一起熟悉了WM-811K Wafermap 数据集,并对其中的一些数据进行了调用,生成了一些统计信息和图片。今天我们接着继续往前走。 半导体数据分析: 玩转WM-811K Wafermap 数据集(二) AI…...
【.net core】【sqlsugar】时间查询示例
1、时间包含查询示例 //model.TimeInterval为时间区间参数,参数格式为2024-01-01~2025-01-01 //query为当前查询的语句内容 //为当前查询语句增加创建时间模糊搜索查询条件 query query.Where(a > ((DateTime)a.F_CreatorTime).ToString("yyyy-MM-dd HH:m…...
conda相比python好处
Conda 作为 Python 的环境和包管理工具,相比原生 Python 生态(如 pip 虚拟环境)有许多独特优势,尤其在多项目管理、依赖处理和跨平台兼容性等方面表现更优。以下是 Conda 的核心好处: 一、一站式环境管理:…...
树莓派超全系列教程文档--(61)树莓派摄像头高级使用方法
树莓派摄像头高级使用方法 配置通过调谐文件来调整相机行为 使用多个摄像头安装 libcam 和 rpicam-apps依赖关系开发包 文章来源: http://raspberry.dns8844.cn/documentation 原文网址 配置 大多数用例自动工作,无需更改相机配置。但是,一…...
【SpringBoot】100、SpringBoot中使用自定义注解+AOP实现参数自动解密
在实际项目中,用户注册、登录、修改密码等操作,都涉及到参数传输安全问题。所以我们需要在前端对账户、密码等敏感信息加密传输,在后端接收到数据后能自动解密。 1、引入依赖 <dependency><groupId>org.springframework.boot</groupId><artifactId...
连锁超市冷库节能解决方案:如何实现超市降本增效
在连锁超市冷库运营中,高能耗、设备损耗快、人工管理低效等问题长期困扰企业。御控冷库节能解决方案通过智能控制化霜、按需化霜、实时监控、故障诊断、自动预警、远程控制开关六大核心技术,实现年省电费15%-60%,且不改动原有装备、安装快捷、…...
OpenPrompt 和直接对提示词的嵌入向量进行训练有什么区别
OpenPrompt 和直接对提示词的嵌入向量进行训练有什么区别 直接训练提示词嵌入向量的核心区别 您提到的代码: prompt_embedding = initial_embedding.clone().requires_grad_(True) optimizer = torch.optim.Adam([prompt_embedding...
3-11单元格区域边界定位(End属性)学习笔记
返回一个Range 对象,只读。该对象代表包含源区域的区域上端下端左端右端的最后一个单元格。等同于按键 End 向上键(End(xlUp))、End向下键(End(xlDown))、End向左键(End(xlToLeft)End向右键(End(xlToRight)) 注意:它移动的位置必须是相连的有内容的单元格…...
C#中的CLR属性、依赖属性与附加属性
CLR属性的主要特征 封装性: 隐藏字段的实现细节 提供对字段的受控访问 访问控制: 可单独设置get/set访问器的可见性 可创建只读或只写属性 计算属性: 可以在getter中执行计算逻辑 不需要直接对应一个字段 验证逻辑: 可以…...
【C++进阶篇】智能指针
C内存管理终极指南:智能指针从入门到源码剖析 一. 智能指针1.1 auto_ptr1.2 unique_ptr1.3 shared_ptr1.4 make_shared 二. 原理三. shared_ptr循环引用问题三. 线程安全问题四. 内存泄漏4.1 什么是内存泄漏4.2 危害4.3 避免内存泄漏 五. 最后 一. 智能指针 智能指…...
CSS | transition 和 transform的用处和区别
省流总结: transform用于变换/变形,transition是动画控制器 transform 用来对元素进行变形,常见的操作如下,它是立即生效的样式变形属性。 旋转 rotate(角度deg)、平移 translateX(像素px)、缩放 scale(倍数)、倾斜 skewX(角度…...
并发编程 - go版
1.并发编程基础概念 进程和线程 A. 进程是程序在操作系统中的一次执行过程,系统进行资源分配和调度的一个独立单位。B. 线程是进程的一个执行实体,是CPU调度和分派的基本单位,它是比进程更小的能独立运行的基本单位。C.一个进程可以创建和撤销多个线程;同一个进程中…...
