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First, set sail Based on the principle of from nothing to have, from having to being excellent, we plan to realize the function through web first, and then optimize it to socket. 1. Technology selection The web framework uses the gmvc framework written before( Handwritten MVC framework (I) - start again )Message storage adopts the way of existi ...

Road to crater Preface Introducing jar Preface First of all, you must print the error log in your project (I use log4j), so that you can see what causes the startup error. Introducing jar How to import local jar package 1. Create a new lib folder under resources and put the jar package file in this directory 2. In the ...

Premium Purchase - Day 2 Learning Objectives Goal 1: Common instructions for using the Angular JS front-end framework Goal 2: Complete the list function of brand management Goal 3: Complete Brand Management Paging List Goal 4: Complete the added function of brand management Goal 5: Complete the modification function of brand management Goal 6: ...

Catalog   Summary 1. Market log framework and log abstraction layer classes 2. Spring boot default logging 3, summary Summary When we are developing projects, we usually want to know how the program is running. We can use sysout.print(); print some key code or view the running status through debug, but for this kind of sysout.print(); currentl ...

For appearance mode, it is very frequent in project development and practical application, but it is very easy to understand. Here is a brief introduction. I. concept introduction Facade, which hides the complexity of the system and provides the client with an interface to access the system. This type of design pattern belongs to structural pat ...

1. Spring The spring framework is a lightweight solution, a potential one-stop shop for building enterprise ready applications. Spring framework is a Java platform, which provides comprehensive infrastructure support for Java application development. Spring deals with the infrastructure, so you can focus on the application. Spring enables you ...

I. Introduction to Lombok Lombok It is a java development plug-in, which enables Java developers to eliminate tedious and tedious code in business engineering through some annotations defined by it, especially for simple java model objects (POJO s). After using Lombok plug-in in the development environment, Java developers can save a lot of ti ...

The default logging framework used by springboot is Logback. Simple log properties can be configured in application.properties, logback.xml format can be configured separately, and log4j can be used for management. The following describes the self-contained log configuration and how to use log4j as log ...

Reason: SpringBoot uses slf4j log by default. When introducing other frameworks, it only needs to exclude the log framework that the framework depends on. When I wanted to introduce log4j today, the pom file kept reporting errors, indicating that the jar package of log4j could not be found, which should be the reason for the springboot version ...

Reason analysis: By default, dubbo uses log4j as its logging framework. If you use a different logging framework, you may not have a log. Solve: It can be resolved by configuring the logger attribute of the application //slf4j,jcl,log4j,jdk,log4j2 <dubbo:application logger="log4j2" /> T ...