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Using the Gin framework to build a simple login background (Go language)
I. Introduction to Gin framework Framework has always been a sharp tool in agile development, which enables developers to quickly start and make appl...
CAS 5.2.6 single point login user defined login verification and registration process in subsystem
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20 regular expressions!
Verification basic date format: var reg = /^(\\d)(-|\\/)(\\d)\\2(\\d)$/; var r = fieldValue.match(reg); if (r==null) { alert('Date format error!...
Three ways to implement python multithreading concurrent processing
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Spring Boot from entry to mastery - project construction
Spring Boot greatly simplifies the development of Java projects. If you want to develop a java project before, you need to install tomcat or other co...
ASP.NET MVC -- custom Filter
Introduction: filter is the judgment before or after the controller method. This paper mainly introduces the custom filter 1. Filter classification ①...
Causes and consequences of inode occupation
0. Problem description phenomenon After receiving the pin alarm, online Solr server / var partition inode is full. Influence /The var partition can no...
Delete folders larger than specified size on Linux at regular intervals
Background: There is no room for the development environment to move around, mostly debug logs.So it's necessary to delete unnecessary logs when ...
The implementation of registration function in Java Web
Implementation of registration function Experimental steps 1. Create the database mydb with the character code of utf-8. 2. Create a tb_user table in...
MLlib basic data type
MLlib uses vectors as its localized storage type, which are mainly composed of two types: sparse and dense Code: import org.apache.spark.mllib.linalg...
HashTable principle and source code analysis
The copyright of this article belongs to feng lyh and blog park. Welcome to reprint it, but please keep this statement and give the original link. Tha...
Using echarts to draw multidimensional histogram
Preface Before that, I've shared with you how to use echarts to draw line graphs, double line graphs and histogram. Today, I'd like to shar...
BufferedWriter.write() solution to writing Chinese characters
In the process of reading and writing files with BufferedReader and BufferedWriter, it is found that the Chinese characters in the written files will...
[LeetCode] 378. Report on the end of the K-th small element in the ordered matrix (C + +)
Original address: https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix/submissions/ Title Description: Given an n x n matrix, the...
web calculator based on Servlet+jsp
This time, in order to let us review the page Jump in the web, the boss gave us an unworthy task A big copy of the world's code depends on how yo...
Java concurrent synchronized keyword and Lock interface
Welcome to read and communicate with us. Please leave a message if you have any questions. There are also open sources on GitHub JavaHouse , welcome ...
vuex common practice code (synchronous + asynchronous)
vuex has been used in several projects of vue. To summarize, it is convenient to use Warehouse writing (store.js) 1. Introduction import Vue from ...
dubbo source code analysis - service invocation process - Notes
Process flow chart of consumer call Calling process of consumer Consumer interface example: Process of receiving message at server NettyHandler. messa...
C ා create Excel chart with multi-level classification labels
Compared with data, charts can more intuitively reflect the trend of data changes. In the data table, the same data value may represent different data...
Use React setState like this to develop a direct call line!
(Long time no see, title skin, content or conscience)As we all know, React realizes the management of components by managing state, and setState is th...
python multithreaded crawler + batch download Doo Doo Doo picture project (attention, continuous update)
python multithreaded crawler project () Crawling target: doodle (starting url: http://www.doutula.com/photo/list/?page=1) Crawling content: doutula pi...
Using form create to dynamically generate vue components
Using form create to dynamically generate vue custom components and nested form components [github] | [description document] maker.create Build custo...
springboot custom exception
Spring boot custom exception and exception handling In a web project, we may need to return different prompt codes to the front end. For example, 401 ...
Group B of 2018 blue bridge provincial competition - global warming
There is such a question when I recently brush the Blue Bridge Cup: The main idea of the topic You have a picture of NxN pixels in a certain sea area...
Html reads the pictures in the local folder and displays
One purpose Select the local folder on Html, automatically read all pictures under the folder and subfolder and display them on the page. Technical a...
Centos7 haproxy dynamic and static separation
Results achieved:When the client accesses haproxy, when the request is static file content, the request is transferred to static server, when the req...
Some pits of Object to Map
Here, three methods of Object mapping are summarized 1. Use reflection getDeclaredFields and getFields /** * Clean the data of the incoming object, re...
The use of higher order functions
problem Byte skipping: the original function, such as fetchData, is an asynchronous function, trying to get some information from the server and retur...
Neural network, integer to onehot vector experiment, found that Adam optimizer is not universal, sometimes RMSprop optimizer is better
Experiment: the 16 integers 0-15 are transformed into a onehot vector with length of 16 by MLP of two layers, and the accuracy is required to be 100%...
Deployment and monitoring of MYSQL 5.6 replication from the library
Deployment and monitoring of MYSQL 5.6 replication from the library MYSQL 5.6 installation and deployment #1. Download the installation package wget h...