Many people don’t recommend making wheels, but I don’t. I built the wheel not to use it in a production environment, but to deepen my understanding. Why not? I personally think that making wheels is almost the best way to learn, if not even one. Because making a wheel requires doing at least the following […]
Tag: ole
ESP32/ESP8266 drives 1.8″tft_oled screen imitation digital tube clock based on Arduino framework
ESP32/ESP8266 drives 1.8″tft_oled screen imitation digital tube clock based on Arduino framework Related article “ESP32 drives I2C OLED time display based on U8g2 under Arduino framework” Effect demonstration: The screen display part uses the TFT_eSPI library driver and uses the unique font display that comes with the library. The screen adopts 128*160 1.8″tft_Oled screen. This […]
Arduino + OLED screen display bitmap
original There are already many projects using Arduino to drive a 0.96-inch OLED screen to display various information. If we need to drive OLED to display images, logos, etc. whatever we want, here is a simple and general method. You need to use Image2Cp, a tool for converting images to CPP code. Component list Arduino×1 […]
Matinal: Analysis of the whole process of SAP ABAP publishing HTTP RestFul service (5)
1. Background introduction RESTful is a design style and development method for web applications. REST is the abbreviation of Representational State Transfer, and the Chinese translation is “representational state transfer”. It may not be easy to understand REST from the definition alone. For students who have just come into contact with this concept, REST can […]
.NET Framework 4.8 console application in C# accesses the established database through EF
Table of Contents 1. Create a .NET Framework 4.8 console application 2. Establish a database 1. Establish database Blogging in SSMS 2. Create a new database connection on VS 3. Install the EF package 4. Automatically generate EF models and contexts 1.Blog.cs class model 2. Model of Post.cs class 3.BloggingContext.cs database context 5. Write an […]
Router in Vue.js and the role of Vue Router?
Gathering sand into a tower, making a little progress every day ? Column introduction Front-end Getting Started Tour: Exploring the Wonderful World of Web Development Welcome to the Front-End Getting Started Tour! If you are interested, you can subscribe to this column! This column is tailor-made for those who are interested in web development and […]
What are the uses of javascript?, the role and function of javascript
Hello everyone, the editor is here to answer the following questions for you, javascript and the role of javascript, what are the uses of javascript? Now let us take a look together! This article mainly introduces the benefits of enabling java in the browser. It has certain reference value. Friends in need can refer to […]
Matinal: Analysis of the whole process of SAP ABAP publishing HTTP RestFul service (4)
1. Concept 1.1. How SAP provides Http Service If you want to use the SAP application server as an http service provider, you need to define a class, which must implement the IF_HTTP_EXTENSION interface. The IF_HTTP_EXTENSION interface has only one method, HANDLE_REQUEST. This customized class must implement the HANDLE_REQUEST method. The SERVER parameter of the […]
Matinal: Analysis of the whole process of SAP ABAP publishing HTTP RestFul service (1)
1.SE24 new class: ZCL_REST_QUERY Activate, then add interface:IF_HTTP_EXTENSION and activate. 2. Implement IF_HTTP_EXTENSION~HANDLE_REQUEST: METHOD IF_HTTP_EXTENSION~HANDLE_REQUEST. DATA: LT_FIELDS TYPE TIHTTPNVP, LV_HEADER_QUERY TYPE STRING, LV_DATA TYPE STRING, LV_HTML TYPE STRING. FIELD-SYMBOLS: <FS_FIELD> LIKE LINE OF LT_FIELDS. *” get HEADER fields SERVER->REQUEST->GET_HEADER_FIELDS( CHANGING FIELDS = LT_FIELDS ” Header fields ). LV_DATA = SERVER->REQUEST->IF_HTTP_ENTITY~GET_CDATA( ). ” Read the fields […]
Develop a modern .NetCore console program, including dependency injection/configuration/logging and other elements
1Foreword There are a lot of scenarios where gadgets need to be developed recently. Last time I developed a hive export tool using the go language. The experience was pretty good, but I really don’t like the syntax of the go language. This time I will try to use C# to develop gadgets. The function […]