Position Controller PX4 Code Resolution (Welfare!!!)

Except the nickname!!! On September 11, the Publishing House of United Electronics Industry will deliver 15 copies of the 98-yuan authoritative teacher's book "Design and Control of Multi-Rotor Aircraft" to all those who are concerned about ...

Added by palace on Tue, 10 Sep 2019 15:05:21 +0300

Chapter 9, Interceptor exception handling Spring MVC process (emphasis)

Interceptor== (emphasis)== 1. Overview of custom interceptors Spring MVC can also use interceptors to intercept requests. Users can customize interceptors to achieve specific functions. Customized interceptors can implement Handler Interceptor in ...

Added by Lord Brar on Tue, 10 Sep 2019 14:35:28 +0300

Backstage Management - No.3 Commodity Management

1,kwargs Objective: To obtain the parameters carried in routing by kwargs Operational procedures: 1. Root routing url(r'^test/(?P<name>\w+)/(?P<age>\d+)/$',test.TestView.as_view()), 2. Class View (TestView.py) class TestVi ...

Added by MattMan on Tue, 10 Sep 2019 11:41:05 +0300

Android Screen Adaptation (Modifying System Font Size, Display Size, Resolution Related Adaptation)

Android development will encounter a variety of models, so it is necessary to adapt to a variety of models. Common adaptions are not described in detail in this category. You can refer to the series of articles here. Android Universal Screen Adap ...

Added by congos on Tue, 10 Sep 2019 09:23:38 +0300

What is JWT in java jwt token?

Links to the original text: http://www.leftso.com/blog/220.html Reprint: http://www.leftso.com/blog/220.html There are other good blog articles and special collections for learning and sharing. First, what is JWT? Understanding JWT and ...

Added by Nugen on Tue, 10 Sep 2019 09:15:31 +0300

Analysis of ArrayList Expansion Mechanisms from the Source Code Perspective (Multi-shore College)

Let's start with the constructor of ArrayList. ArrayList can be initialized in three ways. The source code of the construction method is as follows: /** * Default initial capacity size */ private static final int DEFAULT_CAPACITY = ...

Added by gojiita on Tue, 10 Sep 2019 08:31:25 +0300

List of Java Collection Source Analysis: ArrayList_A Little Classroom (Multi-shore College)

With so much preparation, we finally got to ArrayList, which is our most frequently used collection class. Let's first look at how the document describes it: Resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, ...

Added by KashKurcura on Tue, 10 Sep 2019 07:58:03 +0300

Super Interface for Java Collection Source Analysis: Collection_1 Classroom (Multi-shore College)

Collection Collection is a superset of List, Queue and Set, which is directly inherited from Iterable, that is, all Collection collection classes support for-each loop. In addition, Collection is also a model of Interface-oriented programming, through which it can transform between classes, which is also one of the charms of object-oriented pro ...

Added by FillePille on Tue, 10 Sep 2019 07:49:23 +0300

Use native JS for picture magnifier effect

The first step is to understand the mathematical algorithms: Require mask width Large Map, Large Map Display Area, Small Map, Mask Layer 1. Small maps are scaled to equal ratios 2. The mask layer is zoomed in and out of the map display area Small/Large = Mask Layer/Large Map Display Area Cover Layer = Large Map Display Area* (Small Map / Large ...

Added by whisher06 on Tue, 10 Sep 2019 06:14:56 +0300

Deployment of SpringBoot applications using Docker Compose

SpringBoot e-commerce project mall (20k+star) address: https://github.com/macrozheng/mall abstract Docker Compose is a tool for defining and running multiple docker container applications. With Compose, you can configure your application services with YAML files, and then with a command, you can deploy all the services you configure. install D ...

Added by creatives on Tue, 10 Sep 2019 06:12:52 +0300