Front-end vue, jquery / background java to generate two-dimensional code

Recent projects need to develop the function of generating two-dimensional codes to facilitate the publicity and use of products, so I went to research, the following is the research results. 1. Using jquery to generate two-dimensional codes <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <ti ...

Posted by kripz on Tue, 01 Oct 2019 05:38:29 +0200

Read PDF documents, vudroid(Android)

Links to the original text: https://my.oschina.net/gal/blog/200182 Code modification from there( Summary of Open Source Android pdf Reader Development ) The author shared the code of G ...

Posted by HoangLong on Tue, 01 Oct 2019 00:47:09 +0200

elementUI upload checks the width and height of the picture

Preface In the process of using vue+elementUI, I encountered a problem: upload checks the width and height of the picture At first, I went directly to Baidu google and found that there was no such problem. This should be a very common requirement. Why didn't element ation come true? Maybe it's very simple. There are no such problems on the in ...

Posted by pestilence669 on Tue, 24 Sep 2019 14:12:08 +0200

9. Zhang Long netty Learns Grpc

gRPC why gRPC? gRPC is a modern open source high performance RPC framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authe ...

Posted by kyllerj on Sun, 15 Sep 2019 11:16:05 +0200

Front-end Basic Exercises - Implementing JD Top Navigation

Preface Jingdong is a typical e-commerce website. It is valuable to learn how to make this website. We are going to develop with WebStorm. The screenshot of the front page of Jingdong is as follows: http://img.smyhvae.com/20180119_1653.jpg Page P ...

Posted by 9three on Thu, 12 Sep 2019 11:14:11 +0200

Ribbon Load Balancer Source Parsing

Preface Ribbon Load Balancer Flow chart of Ribbon load balancer Implementation Principle of Ribbon Load Balancer Judging Service Availability Choosing an available service based on load balancing strategy IRule Initialize access to all service lists   Preface What is load balancing? Simply speaking, an application can be supported by m ...

Posted by fisicx on Mon, 09 Sep 2019 16:57:06 +0200

List, Three Nets in One

In python, a list is represented in square brackets, [] Within square brackets, it can be int, str-type data, or even Boolean values such as True/False. a=[] #A variable a is defined, which is list type and empty. print(type(a)) print(bool(a)) ...

Posted by arth on Mon, 09 Sep 2019 14:30:28 +0200

C# HtmlAgilityPack+Selenium crawls page content that requires scrollbars to be pulled

Nowadays most websites load the content of pages with the sliding of scrollbars, so it is impossible to get all the content of pages simply by getting Html of static pages. Using Selenium, you can simulate a browser pulling a slider to load all page content. previously on C#HtmlAgilityPack crawls static pages Introduction to Selenium Selenium ...

Posted by chadt on Thu, 05 Sep 2019 07:45:01 +0200

Introduction to Cesium 9 - Loading and Styling Entities

Now that we have set up the stages of Viewer configuration, imagery and terrain for our application, we can add geocache data, the main focus of our application. To facilitate visualization, Cesium supports popular vector formats GeoJson and KML, as well as an open source format of our own team. We specially developed [] CZML] for describing Ce ...

Posted by trace on Thu, 05 Sep 2019 05:56:28 +0200

Using Spring Boot+zxing, generating two-dimensional code can be as simple as that.

In website development, we often encounter the situation of generating two-dimensional codes, such as using Wechat payment, web page login, etc. This paper shares an example of generating two-dimensional codes by Spring Boot, which uses the zxing tool class of google. Contents of this article Introduction of Two-Dimensional Code2. Writi ...

Posted by Kaboom on Wed, 04 Sep 2019 05:48:43 +0200