Ali question the location of the artifact Arthas Sao operation, positioning online BUG, super power

backgroundThe company has a channel system, which is specially used to connect three-party channels. There is no business logic. It is mainly used to convert messages and verify parameters, which plays a connecting role. Recently, after optimizing the response time of the interface and optimizing the code, the time still can't meet the require ...

Posted on Tue, 14 Jan 2020 03:37:46 -0800 by Afser

Several common encryption algorithms

I. concept       data encryption The basic process is to press some algorithm To make it unreadable code is "ciphertext", so that it can only input the corresponding secret key After that, we can show the original content and protect the data from being stolen and read by illegal people. T ...

Posted on Sun, 12 Jan 2020 22:57:39 -0800 by docmattman

Spring Boot+Mybatis+Mysql development (some pits for beginners)

Time: January 12, 2020 Development tools: idea+Maven Reference blog: https://blog.csdn.net/iku5200/article/details/82856621 The above blog has been written in detail, so I will just talk about the pit I met. The first pit I met was this one (as shown in the figure below), because I didn't know how to ge ...

Posted on Sun, 12 Jan 2020 08:39:36 -0800 by jordy

Log4j1.x seamless upgrade Log4j2.x & complete configuration of asynchronous rolling log xml

Article directory Log4j1 switch upgrade Log4j2 Dependency management (not Spring boot) Delete log4j1.x related jar s Add the following slf4j and log4j2 dependencies Set the listener and filter of log4j2 in web.xml (this step is not required for servlet3.0 and above) Dependency management (Spring b ...

Posted on Sun, 12 Jan 2020 06:19:29 -0800 by abie

Android small window mode, use of picture in picture

1. introduction Android 8.0 introduced the picture in picture mode, which can make activities smaller and display on top of other activities. At the beginning, the project I maintained realized this function by itself. After Android joined picturesque, the two functions were parallel and there were a ...

Posted on Sun, 12 Jan 2020 05:24:48 -0800 by mrdave

Create and call WebService in Intellij IDEA

Article directory Create and call WebServices in Intellij IDEA Zero. Environmental preparation 1, Create WebServices 1. Create a new WebServices project 2. Program preparation 3. Dependency configuration 4. Operation test 5. generate wsdl 2, Call WebServices 1. Create client package 2. Generate j ...

Posted on Sat, 11 Jan 2020 22:40:48 -0800 by kosmidd

Using Ant in Intellij IDEA for automatic test and generating HTML format test report

Article directory 1, Environmental preparation 1. install Ant 2. configure Ant 3. Test whether Ant is configured successfully 2, Write test code 1. Write test class in src directory 2. Write a test class in the test directory (if not, create a new test and set it to Test Resources Root) 3, Write ...

Posted on Sat, 11 Jan 2020 22:35:03 -0800 by audiomove

0495 - how to enable Kerberos in CDH6.1

1 purpose of document preparation In the previous article, Fayson introduced< 0491 - how to install CDH6.1 in RedHat 7.4 >, here we start to install Kerberos based on this environment. Kerberos is a third-party protocol for security authentication, which is not dedicated to Hadoop. You can also ...

Posted on Sat, 11 Jan 2020 22:18:12 -0800 by tonchily

Transaction - [01] Introduction to Spring transaction management and implementation of Spring boot + Druid + mybatis single data source transaction management

Pre knowledge A brief introduction to google What is the business? Transaction is a reliable and consistent way to access and operate program units in database Characteristics of transactions Atomicity: do or not Consistency: consistency refers to the fact that a transaction must transform a ...

Posted on Sat, 11 Jan 2020 00:03:25 -0800 by iffo

DuerOS custom skill development - single intention development

Every skill can't be processed without intention, that is to say, every skill has at least one intention and will be better demonstrated in the future. Let me show you a simple case first Note: the development of skills will take java as an example! Later, I have time to add a case of Python 3.6 development Please refer to the document address ...

Posted on Wed, 08 Jan 2020 08:53:41 -0800 by slicer123