The use of Web view developed by Flutter and the custom processing of its hyperlink
Preface:
The Flutter project needs to use WebView to load web pages. Here I use the plugins of Flutter and inappbrowser to load web pages inside the APP. Next, I will briefly summarize how to use WebView in Flutter, mainly including the implementation of WebView. The hyperlink of WebView opens the web page with the system browser and the hyper ...
Posted on Wed, 27 Nov 2019 11:12:50 -0500 by CanWeb
Spring boot development case: creating a private cloud disk
Preface
Recently, there is a need for workflow. To add an attachment upload function, I have looked for many upload plug-ins, but I am not particularly satisfied. By accident, I found a very useful plug-in elfinder of open source web file manager, which has perfect functions, active community and convenient for secondary development.
Environmen ...
Posted on Wed, 27 Nov 2019 10:46:19 -0500 by sdm
Java uses OpenCV to realize face recognition / eye detection / image capture / synthesis / adding watermark
Official download of OpenCV installation file: http://opencv.org/releases.html, take the windows version as an example, Download opencv-3.1.0.exe
After installation, obtain opencv-310.jar from the build directory (D:\opencv\opencv\build\java) and copy it to the opncv directory of the project (new one is required) ...
Posted on Wed, 27 Nov 2019 10:33:32 -0500 by dvayne
Drawing Mona Lisa in Excel in Python
Preface
The text and pictures of the article are from the Internet, only for learning and communication, and do not have any commercial use. The copyright belongs to the original author. If you have any questions, please contact us in time for handling.
Author: Mai Mai Zao
PS: if you need Python learning materials, you can click the link below ...
Posted on Wed, 27 Nov 2019 01:44:34 -0500 by cjmling
Implementation principle of Mybatis spring
I have always had a question about using mybatis spring Mybatis source (I) overview As I mentioned in, the declaration cycle of SqlSession and Mapper objects is method level, that is to say, the SqlSession and Mapper objects of each request are different, which is a non singleton Bean. But after integrating with Spring, why can we directly inje ...
Posted on Wed, 27 Nov 2019 00:50:14 -0500 by xeross
Spring Boot source code analysis -- essence of Spring Boot: integrating AOP
This article mainly integrates an important function AOP of spring
Let's review how AOP was used in Spring. You can take a look at my article In depth analysis of spring 5 source code -- use of AOP and AOP custom label
Using AOP in Spring
Introducing Aspect
<dependency>
<groupId>org.aspectj</groupId>
<artifactId> ...
Posted on Tue, 26 Nov 2019 23:46:52 -0500 by sureshmaharana
Feign load balancing: Java B2B2C spring cloud e-mall system
1 Overview
1.1 INTRODUCTION
Feign is a declarative web service client. When using methods, define an interface and annotate it. Feign supports pluggable encoders and decoders. Spring Cloud encapsulates feign to support spring MVC and HttpMessageConverters. Feign can be combined with Eureka and Ribbon to support load balancing.
1.2 origin
Most o ...
Posted on Tue, 26 Nov 2019 15:16:12 -0500 by Carolyn
Basic usage of RecyclerView
Basic usage
The basic usage of RecyclerView is similar to that of ListView. You need to import it in the dependencies closure before using it
implementation 'com.android.support:recyclerview-v7:28.0.0'
Step 1: establish a simple layout interface for RecyclerView
<ImageView
android:id="@+id/fruit_image"
a ...
Posted on Tue, 26 Nov 2019 13:31:35 -0500 by pob123
springboot tutorial 20 of java web -- XML version of mybatis
The xml version keeps the old tradition of mapping file. The interface layer only needs to define empty methods. The system will automatically find the corresponding Sql in the mapping file according to the method name
Catalog:
The mysql file is the same as the annotation version. Configure xml below
1, configuration
ap ...
Posted on Tue, 26 Nov 2019 12:16:01 -0500 by kharbat
Logback - MDC and SiftingAppender
1. role
Logback delegates the task of writing log events to the appender component. SiftingAppender, as its name implies, filters log events. Specifically:
For the log events that Logback delegates to it, SiftingAppender will make some distinctions on the log events, and then different events SiftingAppender will delegate different Appende ...
Posted on Tue, 26 Nov 2019 11:22:56 -0500 by premiso