[MyBatis] learning summary V: resultMap

Let's talk about resultMap in this section. Because a large number of instance codes have been provided in the previous sections, this section will not be introduced any more. You can enter my github, clone or download to import your tool try run (Methods) for what you need demo2 Welcome Star or Follow Here's a tip to share: domain alias @ Alia ...

Posted on Tue, 31 Mar 2020 00:23:21 -0400 by ahzulfi

Android Notification Bar Front Desk Service

Android Notification Bar Front Desk Service1. Brief introduction of foreground serviceForeground services are services that are considered known to the user and do not allow the system to kill when there is insufficient memory in the system.The foreground service must provide a notification to the status bar, which is placed under the Ongoing h ...

Posted on Mon, 30 Mar 2020 22:41:07 -0400 by yozyk

What are the differences between the requirements of small and large companies for writing unit test?

When developing the system, the company will require developers to write unit test, but different companies have different requirements for writing unit test. Here are some ways to write unit test. 1. Create a project and introduce the jar package related to unit test <dependency> <groupId>org.springframework.boot</groupId ...

Posted on Mon, 30 Mar 2020 06:15:12 -0400 by vaan

corePoolSize vs. maxPoolSize in ThreadPoolTaskExecutor

1. Overview In Spring ThreadPoolTaskExecutor Is a JavaBean that provides a surround java.util.concurrent.ThreadPoolExecutor And as an abstract instance in Spring org.springframework.core.task.TaskExecutor Exposed. In addition, it can be highly configured with properties of corePoolSize, maxPoolSize, queueCapacity, allowCoreThreadTimeOut, and ke ...

Posted on Sun, 29 Mar 2020 21:46:36 -0400 by kidsleep

C ා compare two objects for equality (depth comparison)

Last article Comparison of C Chen's equality (conventional comparison) Write the instructions for the use of the general method of comparing the equality in C ා, but in the actual development, two reference type objects are often used for comparison, and the reference type contains the properties or fields of the reference type ...

Posted on Sun, 29 Mar 2020 14:15:01 -0400 by oyse

app calls other apps to open files

According to the demand, the files displayed in the app need to be shared and opened and viewed with the related software installed on the mobile phone, so the function of "other applications open files" is used for users to consult in different ways. Here, we go directly to the code: Step 1: the first step is to vi ...

Posted on Sun, 29 Mar 2020 13:21:09 -0400 by grim1208

Qt print QR code

Add profile to printer support: QT += printsupport Create a new Widget project named MyQRCode, and create the qrlib folder in the project directory Download the tripartite support library from: https://github.com/nayuki/QR-Code-generator Copy the following six files in the cpp directory to the qrlib folder Add the qr library file to the ...

Posted on Sun, 29 Mar 2020 11:48:42 -0400 by jk11uk

Appearance mode of structural mode

1 Overview Appearance pattern, also known as facade pattern, is a common structure pattern, which embodies the idea of object-oriented design encapsulation. 2 appearance mode The so-called appearance is actually an extra class, which contains complex and changeable subsystems and only provides simple interfaces. Compared with subsystems, appear ...

Posted on Sun, 29 Mar 2020 02:57:25 -0400 by fugix

#IT star is not a dream

Preface This paper studies how to use small programs to connect to the cloud platform, and then control the RGB three-color light device connected to the onenet cloud platform in the previous section. 1, Theoretical basis 1. Preview Video address: https://www.ixigua.com/i6806304062091297292/ 2. Brief description of function points Applet star ...

Posted on Fri, 27 Mar 2020 12:56:45 -0400 by ravira

npm related articles

1, Use of nrm When using npm to pull projects, we may switch different images to download. Here is the plug-in for fast image switching NRM GitHub address: an open source tool for fast switching npm sources nrm: an open source tool for fast switching npm sources Here we check the nrm source code: 1. As shown below, nrm sourc ...

Posted on Fri, 27 Mar 2020 12:52:58 -0400 by cvjacques