“Live up to the time, the creation of non-stop, this article is participating in 2021 year-end summary essay competition”
The nuggets dating
Computer graphics
Fly front-end engineering SSH Moon shadow front-end small wisdom
Algorithm bosses
Nguyen half-stretching
The back-end mentor
Ali Yunyunqi
Java Chinese Community
induction
Unconsciously has entered the company a year and a half. From the beginning of the workplace to get used to the life of social animals, daily study and work intertwined open, and their predecessors pushed the passive walk, they dare to close the post
The front end of the scene is really wide, easy to be distracted when the demand analysis, the back end of the scene is too fine, easy to frog in the well. Can be applied to other systems, we can learn, apply to their own systems, improve the robustness of their own systems.
The bugs that may exist after code deployment cannot be known in real time. In order to solve these bugs, I spent a lot of time on log debugging. Incidentally, I recommend a good BUG monitoring tool for you.
As a guy who’s going to be an architect, yes, you read that right, it means that you’re pretty cool…
life
I hope that I will always find a balance between work and life. Learn actively in your life and reuse what you have learned at work. Luo Xiang said that limitation often troubles a person. Living in paranoia, one has to deal with paranoia. Singing on the common road!
Looking forward to
Thank you for this internship experience. I met a good team, in which everyone is your teacher, they are warm and patient, and there is no sense of distance. Here, I am happy, can learn new things every day, happy ing. These deficiencies and problems need to be corrected step by step. Guys!! For next year, from the beginning.
Some articles filed recently
The article
One command turns any web site into desktop software
Before a single command turned any website into desktop software, it took a lot of people and time to develop desktop software. Now with the advent of Electron, the development threshold has been greatly simplified. Today, I’m going to introduce you to a tool that allows you to turn a website into an installable desk in 5 minutes
File upload. It’s enough to understand these 8 scenarios
In this article, Bob introduces eight file upload scenarios that he has encountered in his work, and describes the techniques behind each scenario to give you a better understanding of the capabilities provided by mature upload components.
The article
For file downloads, it’s enough to understand these nine scenarios
This article details the 9 scenarios for file downloading. Hopefully, after reading this article, you will have some understanding of the technology behind the 9 scenarios.
The article
Wave animations are common, but this wave component is definitely not
A huge drag was recently discovered during project optimization: a 78KB GIF: what is this GIF for? Is in the request of some large area of data and other situations show a hollow Logo of our website, and then there will be some golden liquid like water flood Jinshan…
The article
Vue official member: How is the Vite ecosystem developing
I was working on a new project when Vite2 came out, so I decided to build it with the latest Vite + Vue3 + TS. Unfortunately, at the time, Vite was crater-and hot updates didn’t do as well as traditional Webpack
The article
Product manager: The opening animation of Hongmeng is so cool that we can have a whole page
One day at a meeting, the product manager asked, “Is everyone getting into the system?” Then a group of people replied: We all use iphones… Of course, I use Android myself, but not Huawei… I thought he was going to let us develop a magic app
The article
Front-end game giant! CSS can be used for 3D games
I came across the 3D properties of CSS and had an idea for a 3D game. Today I’m going to show you a new 3D experience that you’ve never had before. CSS has very few 3D properties, even sandboxes, minecraft…
The article
Interviewed a dozen advanced front-end, even (flat data structure to Tree) can not write out
“This article has participated in the call for good writing activities, click to view: the back end, the big front end double track submission, 20,000 yuan prize pool waiting for you to challenge!” Preface Recruitment season is generally in gold three silver four, or gold nine silver ten. Recently in this May and June, one after another interviewed more than a dozen advanced front-end. There’s a set of quiz questions about the algorithm
Outstanding D
The article
Please, don’t implement this logic yourself, don’t open source tool classes smell good?
Recently the company came to a batch of interns, the little black brother is responsible for taking one. To tell you the truth, this young teacher is very solid in basic skills and very reliable in work. However, when I reviewed the code recently, I found that some of the code logic was a little cumbersome. Some of the code seems to be realized by some open source tool classes, so there is no need to implement it repeatedly by myself. But that’s normal. Nigga just…
Nigga downstairs
2021.12.17
The article
Come in steal a trick, data archiving two or three things
As our business grows rapidly and becomes larger, we encounter problems that force us to upgrade our technology. So today we’re going to talk about the data problems that this process is going to run into.
The article
The money was taken, but the order didn’t go through! Pay off the most complete solution for abnormal orders
Okay, back to today’s topic, I’m going to share with you some ways to handle exceptions in the payment system. In fact, these processing methods are not only limited to the payment system, but also applicable to other systems. We can learn from them and apply them to our own systems to improve the robustness of our own systems. Exceptions are an inevitable part of system operation, and if everything works, our system design will be fairly simple. But unfortunately not…
The article
What is the problem with “Pinduoduo” being pulled up? How will the damage be paid for?
It’s rare to spend a whole day coding at home, not paying much attention to the messages in moments and groups. Go out to open wechat in the afternoon, immediately by the “fight duo duo wool” article attracted the eye. Basically in the group, circle of friends and the major news App brush all over, according to the online rumors + official response is basically such a thing: Micro-blog broke: Pin-Duo duo appeared a major Bug: 100 no threshold coupons randomly get, one night…
The article
Recommend a Github let you read the magic device
Through the Web, click page by page to find and view the specific source content. Use Git Clone or Download to download the project source file to your local PC and open it in your favorite IDE. The above methods have advantages and disadvantages in terms of efficiency and cost. So is there a way to do both? Here is the key point of this issue…
The article
Red black tree, super static diagram details, easy to understand
The red and black tree on the front is both familiar and unfamiliar to many children. School middle school, only understand about; Not so much in the workplace, but in interviews. Every time you need to look at the content of a red-black tree, it’s hard to understand its content in a more vivid way. Yes, this article addresses that question
The article
It was the first time that captcha was made into a shooting game!
What captcha have you seen? Numbers? The image? Count? Jigsaw puzzle? These are so common! Can you use the game to do a verification code? Today I will recommend you an open source project: doomcaptcha**, a let you how can not stop the open source verification code small
The article
Vue3 mimics apple system side message prompt
Those of you familiar with front-end development may have noticed that in Element UI this component is called a Notification Notification; In Bootstrap this component is called Toasts. Today we built it from scratch using vue3.x.
The article
Composition-api source code parsing
Vue: What does Vue do when it installs composition-API? Vue in performing
The article
A line of object.keys ()
Story background One day after the online boss in the group feedback a problem, he just sent a dynamic generated share card, the small program code at the bottom of the card was lost, but other friends said that the normal operation on their mobile phones. In fact, the boss also said that other than this dynamic, the rest is normal.
Female, 30+, married, childless front end worker 2021 year-end summary
See the title of the 4 labels of adjectives, female, 30+, married, childless, layer by layer, anxiety is not spontaneous and growing. I wonder how headhunters and HR people at other companies pluck up the courage to call me when those four adjectives come together
2021.12.17
The article
Wrote a slow interface, year-end no problem 325
For a project to withstand more pressure, each API needs to respond in the shortest time so that throughput is high. In many cases, the development is not optimized at all, and when the pressure comes on one day, the system will fail. Everyone goes to work by subway. The subway has several fixed entrances, and each entrance has several fixed gates that can be scanned to enter. If everyone scans into…
The article
The foundation of Complex System design — Permission control
Access Control (AC) refers to Access Control, which is introduced in one sentence: “Who can do What to What resources (How)” Permission Control belongs to a part of the system design, common in almost all ToB systems.
The article
Wrote a slow interface, year-end no problem 325
For a project to withstand more pressure, each API needs to respond in the shortest time so that throughput is high. In many cases, the development is not optimized at all, and when the pressure comes on one day, the system will fail. Everyone goes to work by subway. The subway has several fixed entrances, and each entrance has several fixed gates that can be scanned to enter. If everyone scans into…
The article
The foundation of Complex System design — Permission control
Access Control (AC) refers to Access Control, which is introduced in one sentence: “Who can do What to What resources (How)” Permission Control belongs to a part of the system design, common in almost all ToB systems.
2021.12.15
2021.12.15
The article
“JVM.” I don’t want to know how I drip. I just want to know how I don’t drip
We all know that Java programs run on the JVM, and any changes to the JVM will inevitably affect the stability of the service. With luck, the service will jitter, and some requests may be delayed or abnormal. Unfortunately, the JVM crashes and the service is completely interrupted. This is not a good thing, and what crashed with the JVM was not just the service, but our mentality. …
The article
14 Super useful Spring MVC “hiding” Tips to use
Typically, in Spring MVC, we write a controller class to handle requests from clients. The controller then calls the business class to handle the business-related tasks and redirects the client to the logical view name, which is resolved by Spring’s scheduler Servlet to render the result or output. This completes the round trip of a typical request-response cycle. This is to create a…
The article
Come on, I’ll tell you something about HashCode in secret.
I’m going to use HashMap to talk about Hash conflicts. Suppose we now have a key with the value of [why technique], and the Hash algorithm calculates the value to be 1. The implication is that the value should be placed at index 1 in the array. But as you can see, there is already a value of eat at subscript 1…
The article
Are you qualified to enter the Java beginner – intermediate programmer watershed? Ten questions to tell you!
Don’t ask me why I am so confident. These questions are still the basic questions of “level” Javase. It is said that small white is required to test a certain degree. As a guy who’s going to be an architect, yes, you read that right, it means you’re…
yichun
The article
[Suitable for junior and intermediate Java programmer training manual to build the whole Web project from 0]
Actually is such, small six six oneself peacetime? Sometimes like to look at the source code such as Spring, but the level may not how, every time dazed at all, and then feel the inside of the details too difficult, then I can only view the overall thought, then I think if I can according to each elder some thought, rolled out a simple wheel, Then I understand the author’s thought is…
Six pulse excalibur
The article
An algorithm explanation for calculating content heat
What kind of content is popular? This is actually a relative concept, in the face of different needs, it is expressed differently. $H(W,I,T,G)$= $H(W,I,T,G)$= $H(W,I,T,G)$= $H(W,I,T,G)$ It is clear that…
The article
New gameplay in Spring5! This KIND of URL request really opens my mind!
This method is out of Spring5, there is no such method before. In the old SpringMVC, when we needed to get the current request address, we got it directly as follows: the first interface, which could receive things like /hello/123/123/hello, /hello/a/hello, and /hello/hel…
The article
You just have fun with your business and I’ll take care of the rest
Every time open a new project is quite painful, project construction (project structure, components, public style, packaging, construction) find the old project copy and paste, delete, transform what is too low, and then want to transform upgrade what, all projects have to be lifted again what trouble dead…..
Water regurgitation
The article
“JVM.” I don’t want to know how I drip. I just want to know how I don’t drip
We all know that Java programs run on the JVM, and any changes to the JVM will inevitably affect the stability of the service. With luck, the service will jitter, and some requests may be delayed or abnormal. Unfortunately, the JVM crashes and the service is completely interrupted. This is not a good thing, and what crashed with the JVM was not just the service, but our mentality. …
The article
14 Super useful Spring MVC “hiding” Tips to use
Typically, in Spring MVC, we write a controller class to handle requests from clients. The controller then calls the business class to handle the business-related tasks and redirects the client to the logical view name, which is resolved by Spring’s scheduler Servlet to render the result or output. This completes the round trip of a typical request-response cycle. This is to create a…
The article
Come on, I’ll tell you something about HashCode in secret.
I’m going to use HashMap to talk about Hash conflicts. Suppose we now have a key with the value of [why technique], and the Hash algorithm calculates the value to be 1. The implication is that the value should be placed at index 1 in the array. But as you can see, there is already a value of eat at subscript 1…
Are you qualified to enter the Java beginner – intermediate programmer watershed? Ten questions to tell you!
Don’t ask me why I am so confident. These questions are still the basic questions of “level” Javase. It is said that small white is required to test a certain degree. As a guy who’s going to be an architect, yes, you read that right, it means you’re…
[Suitable for junior and intermediate Java programmer training manual to build the whole Web project from 0]
Actually is such, small six six oneself peacetime? Sometimes like to look at the source code such as Spring, but the level may not how, every time dazed at all, and then feel the inside of the details too difficult, then I can only view the overall thought, then I think if I can according to each elder some thought, rolled out a simple wheel, Then I understand the author’s thought is…
An algorithm explanation for calculating content heat
What kind of content is popular? This is actually a relative concept, in the face of different needs, it is expressed differently. $H(W,I,T,G)$= $H(W,I,T,G)$= $H(W,I,T,G)$= $H(W,I,T,G)$ It is clear that…
The article
New gameplay in Spring5! This KIND of URL request really opens my mind!
This method is out of Spring5, there is no such method before. In the old SpringMVC, when we needed to get the current request address, we got it directly as follows: the first interface, which could receive things like /hello/123/123/hello, /hello/a/hello, and /hello/hel…
The article
You just have fun with your business and I’ll take care of the rest
Every time open a new project is quite painful, project construction (project structure, components, public style, packaging, construction) find the old project copy and paste, delete, transform what is too low, and then want to transform upgrade what, all projects have to be lifted again what trouble dead…..
Water regurgitation >
The article
Talk about SpringBoot auto assembly
When asked about SpringBoot, interviewers love to ask: “Tell me about SpringBoot autowiring?” . Because of the length, this article does not go into depth. You can also use debug to see the source code of SpringBoot automatic assembly. If you have used Spring, you must…
JavaGuide
The article
This year I wrote 55 articles, interviewed 30 people, and learned 385 knowledge points!
The article
Good intentions ah! I drew the 7 principles of cross-domain solutions into 10 diagrams, and made diagrams!
This article has participated in the “Digitalstar Project” and won a creative gift package to challenge the creative incentive money. Preface Hello everyone, I am Lin Sanxin. It is my motto to tell the most difficult knowledge points in the most easy to understand words. The basis is to advance the premise is my original intention. We do the front end, usually with the back end docking interface that is necessary
The article
Recommend 5 excellent Java open source projects, beginner friendly
https://github.com/halo-dev/halo Halo [ˈheɪloʊ], an excellent open source blog publishing app, is worth checking out. Halo is a spring-based boo
Out of control
2021.12.14
2021.12.13
The article
BeanWrapper
The article is slightly longer…….. BeanWrapper is one of the more important interfaces in Spring. We’ve seen PropertyDescriptor in Spring in the getSingleton process (3)
2021.12.14
The article
Log4j major vulnerability, see how I reproduce and fix
Have you been surprised by the vulnerability exposed by Log4j? From the point of view of an industry person (Xiao Bai), I read the relevant news at the first time when I knew about the vulnerability and probably knew the ins and outs of this vulnerability. Let’s start with the official bug description: Explain
2021.12.13
The article
This section describes how to locate an OOM exception
This is the 18th day of my participation in the August More Text Challenge. Because the JVM does not have enough memory to allocate space for objects, the garbage collector is running out of space to recycle