Introduction to CAT minimalism (application monitoring platform)

1. Overview Lazy tips: CAT official documents - simplicity It's been written very well. Here's a great way to use direct CV~ CAT(Central Application Tracking) It is a real-time application monitoring platform developed based on Java, which provides a comprehensive real-time monitoring and alarm ...

Posted on Sat, 20 Jun 2020 00:40:37 -0400 by callmubashar

Unexpectedly, Java operation Excel is so simple!

preface In the work, using excel to process data is a very common operation. This article will explain how to use the open source wheel to realize the function of downloading, importing and exporting. Before, many Java programmers liked to use the class library of POI to operate excel, but it was very ...

Posted on Fri, 19 Jun 2020 06:28:32 -0400 by rudy.siregar

This article explains how transactions in Spring Boot are implemented

summary We have been using @ Transactional in SpringBoot to do transaction management, but seldom thought about how SpringBoot can achieve transaction management. Today, we start from the source code to see how @ Transactional can achieve transaction management. Finally, we write a similar annotation to help us deepen our understanding by combi ...

Posted on Fri, 19 Jun 2020 03:37:39 -0400 by jwaqa1

Introduction and Use of Qiniuyun _Tool class for uploading Qiniuyun files

    1. Picture Storage Scheme introduce In actual development, we have many servers that handle different functions.For example: Application Server: Responsible for deploying our applications Database Server: Run Our Database File Server: Server responsible for storing user uploa ...

Posted on Thu, 18 Jun 2020 21:30:19 -0400 by chick3n

Java EE final project assignment management system

Java EE final project - activity management system Based on MyBatis+springboot+jsp 1, About MyBatis MyBatis benefits 2, Introduction to springboot springboot benefits Microservice 1: What is microservice? Why micro services? 2: What problems does microservice solve and what problems does it intro ...

Posted on Thu, 18 Jun 2020 06:42:35 -0400 by KissMyBrain

Spring boot 2. X Series tutorial 70 -- implementing the function of registered user sending activation email in spring boot

In the previous chapter, I took you to learn how to send various types of emails in spring boot. Next, I took you to implement the email sending function in actual development. Demand analysis:When many websites register, they will send an activation email to our registered mailbox, which is a seri ...

Posted on Thu, 18 Jun 2020 06:13:27 -0400 by dgwade

Please don't write a full screen try catch anymore!

background During the software development process, it is inevitable to handle all kinds of exceptions. For me, at least half of the time is spent dealing with all kinds of exceptions, so there will be a lot of try {...} catch {...} finally {...} code blocks in the code, which not only has a lot of redundant code, but also affects the readabil ...

Posted on Wed, 17 Jun 2020 18:14:51 -0400 by elite_prodigy

From design to development, a workflow system that can be easily used and managed by everyone

Workflow introduction Workflow is the calculation model of a workflow, that is, the logic and rules of how the work in the workflow is organized together in a computer, represented by an appropriate model, and calculated. Workflow is not a "new person" in IT field. Workflow idea was proposed in 1960s. It was tried in 1970s, but bec ...

Posted on Wed, 17 Jun 2020 12:26:35 -0400 by ypirc

BigDecimal collection of Java scientific computing

1, The background of BigDecimal First, let's look at the following code example: @Test public void countDemo() { logger.info("result:{}", 0.06 + 0.01); logger.info("result:{}", 1.0 - 0.42); logger.info("result:{}", 4.015 * 100); logger.info("result:{}", 303.1 / 1000); } give the resul ...

Posted on Wed, 17 Jun 2020 03:21:46 -0400 by pixy

Design mode -- single case mode (multiple implementation modes)

Singleton mode and multiple implementation methods introduce Several implementation methods Slovenly Hungry Han style Double check lock mode Registration form Static inner class enumeration Singleton Pattern is one of the simplest design patterns in Java. This type of design pattern is a creatio ...

Posted on Wed, 17 Jun 2020 03:02:52 -0400 by wardy