Realization of permission model based on shiro

1. shiro Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, password, and session management. With Shiro's easy to understand API, you can quickly and easily access any application, from the smallest mobile application to the largest network and enterprise application. Authentica ...

Posted on Sat, 23 May 2020 03:24:28 -0700 by lulubell

JAVA Concurrent Programming Introduction, thinking about the realization philosophy behind synchronous lock

Multithreading is similar to preemptive multitasking processing in concept. The reasonable use of threads can improve the processing ability of the program, but it also brings disadvantages. For shared variable access, there will be security problems. Here is an example of multi-threaded access to shared variables: public class ThreadSafty { ...

Posted on Sat, 23 May 2020 02:53:17 -0700 by downfall

PHP version Google Advertising admob server callback verification SSV

Old article, just moved here. Because the business needs to access Google's incentive advertising, it involves the server-side verification (SSV) of Google callback. Python version is based on the third-party package ecdsa out of the box. PHP version also has an ecdsa library, but it is too complex. Think of the openssl rsa key signature chec ...

Posted on Fri, 22 May 2020 08:28:09 -0700 by leena

Python version Google Advertising admob server callback verification SSV

Google's incentive advertising Google callback server side validation (SSV). Python version is based on the third-party package ecdsa out of the box. Address of Google public key: https://www.gstatic.com/admob/reward/verifier-keys.json be careful: The public key provided by AdMob key server will rotate from time to time. To e ...

Posted on Fri, 22 May 2020 08:20:02 -0700 by amargharat

Java.lang.StringWhat exactly did the + operation do?

Author: Pz https://www.cnblogs.com/panzi/p/11956782.html In previous interviews, String was frequently visited. Here are a few general points of knowledge: String Constant Pool new String() The difference between ==and equals native methodString.intern() Although the interview was generally correct, I couldn't answer one of the que ...

Posted on Thu, 21 May 2020 19:54:34 -0700 by phpretard

How to make your website use HTTPS like mine?

Using HTTPS to visit our website can not only increase the security of our website, but also enhance the force of our website! I have some experience in building SSL service and CDN for the website, and I'd like to share with you here. I hope I can help you in this respect!!! Step 1 purchase SSL certificate Open alicloud > products and serv ...

Posted on Thu, 21 May 2020 09:30:30 -0700 by tofi84

Talk about OffsetCommitPolicy for debezium

order This article mainly studies the OffsetCommitPolicy of debezium. OffsetCommitPolicy debezium-v1.1.1.Final/debezium-api/src/main/java/io/debezium/engine/spi/OffsetCommitPolicy.java @Incubating @FunctionalInterface public interface OffsetCommitPolicy { boolean performCommit(long numberOfMessagesSinceLastCommit, Duration timeSinceLastCom ...

Posted on Thu, 21 May 2020 09:14:00 -0700 by Gente

Analysis of Redis master-slave replication

How does Redis master-slave replication work? Do you know how to keep high performance while synchronizing data? https://redis.io/topics/replication Note that based on the latest version of redis 5, the slave term and configuration item have been officially changed to replica. In fact, they refer to slave nodes. Basic process of master- ...

Posted on Thu, 21 May 2020 03:19:07 -0700 by sri.sjc

Beauty of Mybatis source code: 1.2 download Mybatis source code and import it into IDE tool

Download Mybatis source code and import it into IDE tool Download the source code of Mybatis Open the browser and enter the web address https://github.com/mybatis/mybatis-3 You can access Mybatis' warehouse in Github. So far, the latest version of mybatis is 3.5.3-SNAPSHOT, but because the version I used in my previous learning process is 3.5 ...

Posted on Wed, 20 May 2020 23:18:46 -0700 by ninib

The way of python learning (function and functional programming)

The way of python learning (function and functional programming) Definition of function Function is a programming method of logic structure and process The difference between a function and a procedure is that a function has a return value and a procedure has no return value # function def func1(): '''Test function''' print('fu ...

Posted on Tue, 19 May 2020 08:38:32 -0700 by earthlingzed