Tag:strategy

  • How to export project from eclipse

    Time:2021-4-22

    Eclipse is an open source, Java based extensible development platform. In itself, it is just a framework and a set of services for building a development environment through plug-in components. Fortunately, eclipse comes with a standard set of plug-ins, including the java development kit (JDK). How does eclipse export a project? Some small white programmers […]

  • How to debug program in eclipse

    Time:2021-4-21

    Eclipse is an open source, Java based extensible development platform. In itself, it is just a framework and a set of services for building a development environment through plug-in components. Fortunately, eclipse comes with a standard set of plug-ins, including the java development kit (JDK). How does eclipse debug programs? Maybe many friends will not […]

  • Spring security: how to implement different interfaces and different security policies

    Time:2021-4-20

    1. Preface Welcome to readSpring security combat dry goodsA series of articles. Recently, an interesting question was raised by a small development partner. He is doing a project, involving two styles, one is to give small program interface, the use of stateless securityJWT TokenThe other is the management backgroundFreemarkerThat is, the front and rear ends […]

  • . net core 3.1 cross domain request (CORS)

    Time:2021-4-19

    . net core 3.1 cross domain request (CORS) When using Ajax to request server resources, if the protocol + host name + port number (if any) is the same, interaction is allowed, otherwise cross domain problems will occur, and resources in other domains cannot be accessed and operated. Common solutions include using jsonp in the […]

  • Installation and use of Django framework

    Time:2021-4-9

    1. Download and install Python https://www.python.org/downlo… > py –version Python 3.9.1 2. Create a virtual environment named my project and activate it > py -m venv my-project #Modify the execution policy of the script by the PowerShell > set-executionpolicy remotesigned #Activate virtual environment > my-project\Scripts\activate.bat 3. Install Django > py -m pip install Django > […]

  • Using R language to make Arima + GARCH trading strategy for S & P500 stock index

    Time:2021-4-7

    Link to the original text:http://tecdat.cn/?p=7207 In this article, I want to show you how to apply the trading strategy of S & P500 stock market index. By combiningARIMAandGARCHModel, in the long run, we can go beyond the “buy and hold” approach. Strategy overview The strategy is implemented on the basis of “rolling” prediction For each […]

  • Kafka (3): consumer consumption mode, three partition allocation strategies and offset maintenance

    Time:2021-4-2

    1、 Preface In the previous two articles, we analyzed Kafka’s theoryWorkflow, storage mechanism, partition strategy, data reliability, fault handling. So it is clear about the overall architecture of Kafka and how the data produced by the producer is stored to ensure the reliability and deal with the failure. In depth analysis of Kafka architecture (1): […]

  • What are the load balancing modes of nginx? What is its implementation principle

    Time:2021-3-31

    Nginx is a necessary skill for back-end engineers, operation and maintenance engineers, as well as front-end engineers. Especially in today’s more and more widely used distributed systems, nginx has occupied the majority of web servers, and is still growing. For example, domestic companies such as batj, Netease and Sina can see its presence. What are […]

  • How to import web project from eclipse

    Time:2021-3-27

    Eclipse is an open source, Java based extensible development platform. In itself, it is just a framework and a set of services for building a development environment through plug-in components. Fortunately, eclipse comes with a standard set of plug-ins, including the java development kit (JDK). Eclipse is the most popular development tool. Many people don’t […]

  • How to connect cimcoedit5 with CNC

    Time:2021-3-25

    CIMCO integration is a global company dedicated to the CNC / DNC segment of the industrial automation (IA) industry. CIMCO provides a complete package of solutions for discrete manufacturers in aviation, automobile, foundry, precision instrument and manufacturing fields. CIMCO integration is a leading supplier of DNC industry. With professional representative offices all over the world, […]

  • How to install tomcat9.0

    Time:2021-3-24

    Tomcat is a core project of the Apache Software Foundation’s Jakarta project, which is jointly developed by Apache, sun and other companies and individuals. With the participation and support of sun, the latest servlet and JSP specifications can always be reflected in Tomcat. Tomcat 5 supports the latest servlet 2.4 and JSP 2.0 specifications. Because […]

  • Diagram of the storage allocation strategy of tcapsusdb

    Time:2021-3-20

    preface There are many ways to save data. The most direct way is to build a data structure in memory to save data. For example, with a list, every time a piece of data is received, a record is appended to the list. This scheme is very simple and has good performance, but the problem […]