Spring MVC series execution process

Article directory doDispatch() method getHandler(HttpServletRequest request) getHandlerAdapter(Object handler) processDispatchResult() This series combines the source code (based on springboot2.1.4) to analyze the execution process of springmvc. First, a complete flow chart: As we know, the reques ...

Posted on Mon, 13 Jan 2020 03:39:08 -0500 by Dark-Elk

Spring source code exploration III. preliminary test - refining core functions of Spring+MVC [1]

Refining the core functions of Spring+MVC 1, foreword Before learning the source code of a framework, we can think about the configuration items provided by the framework for developers, the functions of the framework in the project, and the presentation form of the framework in the project. We can ...

Posted on Mon, 13 Jan 2020 03:25:03 -0500 by blear

The first lesson of big data on the cloud: MaxCompute authorization and appearance operation hidden pit Guide

1, Sub account creation, AK information binding If you are the first time to log in to digital plus platform and use DataWorks with a sub account, you need to confirm the following information: • the business alias of the primary account to which the sub account belongs. • user name and password of the sub account. • AccessKey ID ...

Posted on Mon, 13 Jan 2020 02:57:38 -0500 by majik_sheff

Spring Boot uses embedded containers. How to configure a custom Filter

Listener, filter and Servlet are three components commonly used in Java Web development. Filter is the most frequently used component, which is often used for simple permission processing, request header filtering and XSS attack prevention. If we use the traditional Spring MVC for development, we only need to configure the following in Tomcat's ...

Posted on Mon, 13 Jan 2020 02:50:08 -0500 by mccormr7

Data analysis day01

Data analysis day01 1.numpy module What is data analysis It is to extract the information hidden behind some seemingly disordered data and summarize the internal law of the research object Data analysis is to analyze a large amount of collected data with appropriate methods to help people make ju ...

Posted on Mon, 13 Jan 2020 02:42:18 -0500 by mady

Spring spring and Java Web Integration

I. overview When integrating Spring with Java Web, Spring can accomplish the following tasks: 1)Spring to control transactions (Dao jdbctemplate) 2) All components autowrapped 3) Manage database 1.1 steps of integration 1. guide pack 2. write configuration 1) add all components to the contain ...

Posted on Mon, 13 Jan 2020 02:20:50 -0500 by marty_arl

Decision tree algorithm

8. Feature extraction 1 Definition Convert any data (such as text or image) into digital features that can be used for machine learning Note: eigenvalue is for better understanding of data by computer Feature extraction and classification: Dictionary feature extraction (feature discretization) ...

Posted on Mon, 13 Jan 2020 02:18:22 -0500 by aquilla

Android: combining text and images on a Button or ImageButton

I'm trying to create an image (as background) on the button and add it dynamically, depending on what happens at run time, some text above / above the image. I can't even add text if I use ImageButton. If I use Button, I can add text, but only define an image with Android: drawablebutton and here XML like attributes defined for. However, ...

Posted on Mon, 13 Jan 2020 00:04:59 -0500 by adredz

vnpy source reading and learning: preparation

vnpy source reading and learning target By reading vnpy, learn some design ideas and concepts of quantitative trading system. Learn some skills and paradigms of python project development by reading vnpy Through the design of vnpy, we can use python to reproduce a small and simple quantitative trading system See if you can use java or. net to ...

Posted on Sun, 12 Jan 2020 23:47:32 -0500 by bigger

Using UAV (mobile phone) and Unity3D software to make their own VR panoramic software

*There are many panoramic websites and companies in the market. I will not list them here. I will Baidu VR and Panorama and so on will jump out a lot. * 1, Panoramic photo making 1. UAV makes panoramic photos 1.1 panoramic photo production of Dajiang UAV is completed by using one key 720 pano ...

Posted on Sun, 12 Jan 2020 23:39:19 -0500 by qwave