A tutorial and a simple example of Log4j2 logging framework

1. Log4j2 tutorial 1.1 INTRODUCTION The 1.x version of Log4j has been widely used in many applications, but due to memory leaks and other bug s, the code is difficult to maintain, as well as the disadvantages of using the old version of jdk, it was finished in August 2015. Its substitutes, SLF4J, L ...

Posted on Fri, 14 Feb 2020 05:43:19 -0500 by dave_biscuits

RabbitMQ explains the concept of message communication

1. RabbitMQ message communication architecture When it comes to message communication, we may first think of email, QQ, wechat, SMS and other communication methods. These communication methods have sender, receiver and a container for storing offline messages. But these communication modes are diffe ...

Posted on Wed, 12 Feb 2020 22:10:25 -0500 by james_holden

JEESZ distributed framework -- single sign on integration scheme (3)

Multi project integrated single sign on configuration After sso verification, when the client system needs to receive the results returned by sso system, it needs to define a Filter to get the returned results, and then do relevant processing for the returned results. If no processing is needed, the Filter can also be undefined here package c ...

Posted on Wed, 12 Feb 2020 13:01:47 -0500 by StoneJunkie

Request Zuul gateway error

I started the eureka, config, zuul, a microservice, and used postman to test whether the gateway worked. com.netflix.zuul.exception.ZuulException: at org.springframework.cloud.netflix.zuul.filters.post.SendErrorFilter.findZuulException(SendErrorFilter.java:118) ~[spring-cloud-netflix-zuul-2.2.1.RE ...

Posted on Wed, 12 Feb 2020 10:54:42 -0500 by Popcorn

Global event mechanism of Activiti and its listening and processing

Summary After 5.15, Activiti has added a unified event entry. It is not necessary to add the following configuration for each node and process in the BPMN file defined by the process when listening for process events, so as to realize the practice of listening for events. This practice leads us to n ...

Posted on Wed, 12 Feb 2020 09:29:33 -0500 by Hebbs

Gson full resolution (middle) - the use of TypeAdapter

About TypeAdapter Ahead Gson complete analysis (I) We understand and use JsonSerializer and JsonDeserializer to transform JSON and java entity classes. Here we use TypeAdapter to fulfill this requirement more efficiently. JsonSerializer mentioned in the previous article Both JsonElement and JsonDes ...

Posted on Wed, 12 Feb 2020 06:50:55 -0500 by unmash

27. Data governance of yiee data operation system of Duoyi Education - atlas deployment and use

Catalog 1, atlas Compilation and packaging 2, atlas installation configuration 1. Compilation environment 2. Compilation steps 3. Installation steps 4. Hive hook configuration 5. Operation test 3, atlas configuration hive hook 4, Introduction to atlas         1,Base Search         ...

Posted on Tue, 11 Feb 2020 03:02:02 -0500 by bensonang

Spinnaker section 7 - Orca code details

This Spring Festival holiday has been held at home because of the new crown. I have nothing to do to turn out the spinnaker code and review each microservice again. I made some notes and shared them today. If there is spinnaker development or bug repair in the future, I can directly focus on it. It i ...

Posted on Mon, 10 Feb 2020 00:47:24 -0500 by whiterecluse

Remote call using Http connection pool

Explain http request is the most commonly used method of inter system interface call. In java, there are many ways of http request. httpClient is a common way at present, and it is easy to use. However, creating an httpClient is a time-consuming process. To improve performance, the http connection poo ...

Posted on Sun, 09 Feb 2020 23:51:53 -0500 by scross

Activation function in TensorFlow

Original Address Catalogue - TensorFlow A little bit of my understanding In a sense, in-depth learning = neural networks Is a multilayer process x0 -> y_1=f(Wx0) -> y_2=f(Wx1) -> y_3=f(Wx2) -> . . . -> y=f(Wx(n-1)) Each of these layers Start with a round of "straight" (linear) ...

Posted on Sun, 09 Feb 2020 22:08:58 -0500 by greedyisg00d