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Development environment jdk1.8 maven mysql8.0 1, guide package 2. Configure config (including write db.properties) db.properties: driver=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:3306/mybatis?useSSL=false&serverTimezone=UTC mybatis-config.xml: <?xml version="1.0" encoding="UT ...

What is SaltStack SaltStack management tool allows administrators to create a consistent management system for multiple operating systems Preparation of experimental environment Name role address centos7-min master 192.168.142.172 centos7-min2 client 192.168.142.110 Experimental steps ...

1, Analysis of current architecture problems 1.1 problem analysis Our current architecture is shown in the figure below. Eureka is used for service discovery service registration, and Ribbon is used for load balancing. Now let's assume that if the service provider's response is very slow, the servic ...

order This paper mainly studies the individual knowledge of artemis acknowledge activemq-artemis-2.11.0/artemis-jms-client/src/main/java/org/apache/activemq/artemis/jms/client/ActiveMQMessage.java public class ActiveMQMessage implements javax.jms.Message { //...... public void acknowledge() throws JMSException { if (session != nul ...

Is there a problem? Briefly review what we have just written: Service provider: a microservice that provides querying users according to their id. Service consumer: a service caller who calls service provider remotely through RestTemplate. What's the problem? In consumer, we hard cod ...

There is no end to learning. brief introduction HyperLogLog is an advanced data structure in Redis. It is mainly used for cardinal Statistics (de duplication Statistics) of massive data (2 ^ 64 data can be counted). It is characterized by high speed and small space (12KB). But there are errors in th ...

Introduction to Jsoup jsoup is a Java HTML parser, which can directly parse a URL address and HTML text content. It provides a set of very labor-saving API, which can extract and operate data through DOM, CSS and jQuery like operation methods. In the field of crawler web page collection, our main role is to use HttpClient to obtain the specific ...

This article mainly introduces how to use nginx to configure tomcat and https ssl certificates.   Mode 1: directly modify the nginx.conf file under the conf file of nginx   You can directly copy the entire server node as follows, and change the certificate in the red box to your own. #user nobody; worker_processes 1; ...

Zuul introduction Zuul's main functions are route forwarding and filter. Routing function is a part of microservices, such as / api/user forwarding to user service and / api/shop forwarding to shop service. Zuul default and Ribbon combine to realize the function of load balancing. Build a Spring Cloud gateway Create project ...

Setting up Kafka-0.10.2 source reading environment and running Windows locally Version information 2. Building Kafka Source Environment 3. Configuring Kafka Source Environment Build a bin package Version information Kafka: 0.10.2,Scala: 2.10.6,Java: 1.8.0_221,IntelliJ IDEA: 2019.2,Zookeeper: 3.4 ...