Course Introduction：This article introduces the method of integrating Flink in Spring Boot applications and obtaining aggregated data processed by Flink. Since Flink usually handles unbounded data streams, it is challenging to directly obtain the final aggregation results. This article will explore how to return Flink aggregation results in the Spring Boot API interface by converting data sources into bounded data sources.

2025-08-27 comment 0  499

Course Introduction：This article explores the issue of integrating Flink in Spring Boot applications and handling the results of Flink unbounded data source aggregation. For scenarios where Flink aggregation results cannot be returned directly in API responses, solutions are provided to convert unbounded data sources into bounded data sources, and specific implementation methods for data sources such as Kafka are discussed to achieve on-demand acquisition of aggregation results.

2025-08-25 comment 0  731

Course Introduction：Tobuildreal-timedatapipelineswithPythonandApacheFlink,firstsetuptheenvironmentbyinstallingPyFlinkviapip,ensuringJava11 isinstalled,andhavingaFlinkclusterready.1)UsePython3.6 ,installapache-flink,matchFlinkversionsacrossyoursystemandcode.2)Createabasi

2025-07-26 comment 0  541

Course Introduction：This article describes how to extract hyperplanar parameters, including coefficients and intercepts, from Apache Flink ML-trained LinearSVC model. By extracting these parameters, users can integrate model rules into Flink CEP's pattern matching API to implement more complex stream processing logic. This article provides Python and Java sample code to help users get started quickly.

2025-08-22 comment 0  744

Course Introduction：This article describes how to integrate Flink in Spring Boot applications and solve the problem of getting aggregated results from Flink unbounded data sources. For the characteristics of unbounded data sources, the idea of ​​converting data sources into bounded data sources is provided to return aggregated results in the API interface of Spring Boot applications.

2025-08-28 comment 0  393

Course Elementary  13907

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82458

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13247

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24711

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27551

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.