Popular understanding of spring source code -- Analysis of default tags (import, alias, beans)

Popular understanding of spring source code (6) -- Analysis of default tags (import, alias, beans) The parseDefaultElement method of documentReader is mentioned in the previous section. From this point on, various labels are parsed. Among them, bean label parsing is the most complex. So let's first look at the other three default labels pr ...

Posted by shahryar on Sun, 07 Jun 2020 06:03:10 +0200

[First line of code--Android] A streamlined version of Kotlin's introductory tutorial

Google announced Kotlin as the official Android and development language at the I/O conference in 2017, and Android Studio also provides full support for Kotlin. How do I run kotlin's code?adopt https://try.kotlinlang.org Or IDEA and other IDEs that support Kotlin write directly on top of it, and then run away. Here's the main record of how to ...

Posted by gazolinia on Sat, 06 Jun 2020 19:57:34 +0200

A small salary management system with JavaFX+SpringBoot + verification code function

1 General 1.1 INTRODUCTION A simple small salary management system, JavaFX + front-end Spring Boot, has few functions. It focuses on the UI and some logic of the front-end. The back-end is very simple. Main functions: User registration / login Verification code retrieve password Users modify information, modify Avatar Display salary in bar cha ...

Posted by poknam on Sat, 06 Jun 2020 12:10:57 +0200

Invalid pom file after idea clones project from git

Invalid pom file after idea clones project from git When your idea pulls projects from git, projects that are cloned for the first time often report that pom files are not in maven format: as shown in the following figure This is because Maven has not been set after getting down from git. Open File ...

Posted by crazylegseddie on Fri, 05 Jun 2020 10:15:17 +0200

Symmetric encryption algorithm

concept In the symmetric encryption algorithm, the data sender processes the plaintext (original data) and the encryption key together through a special encryption algorithm, which makes it become a complex encrypted text to be sent out. After receiving the ciphertext, if the receiver wants to interpr ...

Posted by vaibhavs on Fri, 05 Jun 2020 09:50:25 +0200

Springboot Alipay website payment, APP payment, single transfer to users, refund function

1, Overview Recently, in writing projects, I met the place where I would like to call Alipay payment (website management website payment, APP user payment, APP user withdrawals, that is, single transfer to users, refund). I've studied for a long time, and all of them are connected. Now I'll share my c ...

Posted by allaboutthekick on Fri, 05 Jun 2020 06:07:56 +0200

Spring Cloud upgrade road - Hoxton - 4. Use Resilience4j to achieve instance level isolation and fusing

How not to enable Hystrix Because our entry annotation class is replaced by SpringBootApplication from @ SpringCloudApplication, spring cloud circuit breaker will not be enabled. The introduced Hystrix dependency has no effect. Please refer to Section 2 of this series: The way to upgrade Spring Cloud ...

Posted by cedricm on Fri, 05 Jun 2020 05:40:36 +0200

Java multithreading: a new understanding of threads

preface For Java multithreading, in fact, it has been some scattered learning. Multithreading is often asked in the interview. I really want to summarize this certification this time, and I really don't want to fall in this field. According to "Java high concurrent programming details" a boo ...

Posted by coolbeansdude51 on Thu, 04 Jun 2020 15:32:41 +0200

How to use the creation of Nacos and gateway center in Java Spring Cloud practice? 80% won't

  0. Preface In the previous section, we created a project architecture, which will be supplemented by subsequent projects. 1. Nacos 1.1 INTRODUCTION Nacos can be used to discover, configure, and manage microservices. It provides a set of simple and easy-to-use feature sets, which can quickly realize dynamic service discovery, service conf ...

Posted by dyip on Thu, 04 Jun 2020 07:55:37 +0200

Android uses GridView to load (weak reference) network pictures asynchronously (click to view)

Android uses GridView to load (weak reference) network pictures asynchronously (click to view) In the current Android development, more and more app s use the album function of Android. Using the album will use GridView to load pictures, but when loading a large number of pictures, there will be a black screen because the loading process is ...

Posted by VirtuosiMedia on Tue, 02 Jun 2020 17:57:27 +0200