principles of microservices

: FastdfsLoad balancing: Keepalived+nginx+proxy (triple load)Cloud ServicesSUBSYSTEM: Backend management system, RESTFU service System, Dubbo Service/control/monitoring CenterZookeeper Registration Center, Report analysis system, logging system, timing dispatch systemSearch engine system, Distributed File system, message system, SSO Single sign-on systemSOA control platform, UI component system, OA Office System, CMS press release systemPayment system, database configuration system, Workflow sys

, intuitive, and powerful, the most popular HTML, CSS, and JS frameworks for developing responsive layouts, mobile device-first WEB projects.Designed for all developers, all application scenarios.Make front-end development faster and easier. All developers are quick to get started, all devices are adaptable, and all projects are available.DistributedDistributed services: Dubbo+zookeeper+proxy+restfulDistributed message Middleware: Kafka+flume+zookeeperDistributed cache: Redis Distributed files:

: 123456789 @EnableEurekaServer @SpringBootApplication public class application { public static void main(string[] args) { new Springapplicationbuilder (Application.class). Web (True). Run (args);} By default, the service registry will also try to register itself as a client, so we need to disable its client registration behavior by simply application.properties adding the following information to the configuration file: 123456 s

Create a basic spring boot project, named Eureka-server, and introduce the required dependencies in the Pom.xml:Start a service registry with @enableeurekaserver annotations to provide conversations to other apps. This step is very simple, just add this annotation to a normal spring boot application to enable this feature, such as the following example:@EnableEurekaServer@SpringBootApplicationpublic class Application {public static void main(String[] args) {new SpringApplicationBuilder(Applicati

instance Pom.xml to turn on the monitoring-related endpoint and ensure that the dependency Spring-cloud-starter-hystrix for the circuit breaker has been introduced:Ensure that the @enablecircuitbreaker or @enablehystrix annotations have been used in the main class of the service instance to turn on the circuit breaker function.All the configurations have been completed, the "Eureka-consumer-ribbon-hystrix" monitoring has been initiated and the "Monitor Stream" button has been clicked.From now o

Spring cloud itself provides a lot of components, but we need to follow the business model to customize the enterprise needs of the common architecture, then we need to consider what technology to use now?Below I have made the following technical summary for the spring Cloud Micro-service distributed cloud architecture, hoping to help you:View:H5, Vue.js, Spring Tag, React, AngularJsSpring boot/spring Cloud:Zuul, Ribbon, feign, Turbine, Hystrix, Oauthor2, Sleuth, API Gateway, Spring Cloud, Confi

packages from MVN package with commandYou can see the following results when you are doneCopy the jar package to Dockerfile's sibling directory6. Executive DockerfileWhen Dockerfile is selected, right-click, and then tap Run/dockerfile-regThe process log is displayed in the Output window7. View Docker imagesOnce the deploy is complete, you can use the Docker command-line tool to view existing images image informationDocker images8. Run the Docker containerCreate a Docker container by executing

resttemplate, and in the implementation of the/consumer interface, First, a Eureka-client service instance is selected through the Choose function of Loadbalancerclient, which is stored in serviceinstance, and the information in these objects is then spliced out to access/ The detailed address of the DC interface, and finally uses the Resttemplate object to implement the call to the service provider interface.After you have finished writing your code, the reader can start Eureka-server, eureka-

restTemplate.getForObject(url, String.class);}}As you can see here, we inject loadbalancerclient and resttemplate, and in the implementation of the/consumer interface, First, a Eureka-client service instance is selected through the Choose function of Loadbalancerclient, which is stored in serviceinstance, and the information in these objects is then spliced out to access/ The detailed address of the DC interface, and finally uses the Resttemplate object to implement the call to the service prov

Create a basic spring boot project, named Eureka-server, and introduce the required dependencies in the Pom.xml:Start a service registry with @enableeurekaserver annotations to provide conversations to other apps. This step is very simple, just add this annotation to a normal spring boot application to enable this feature, such as the following example:@EnableEurekaServer@SpringBootApplicationpublic class Application {public static void main(String[] args) {new SpringApplicationBuilder(Applicati

Preparatory workFirst, build a simple Web project that will be used to add security controls later, and if you are building a web app using spring boot, you can read the Spring Boot Development web App article first.Web tier Implementation Request mapping@Controller Public class Hellocontroller { @RequestMapping ("/") public String Index () { return "Index"; } @RequestMapping ("/hello") public String Hello () { return "Hello"; }} /: Map to Index.htm

Standardization Project management solution, realize the software pipelining production, guarantee the correctness, the reliabilityGuided creation, import of projects, integrated version control (GIT/SVN), project Management (trac/redmine), Code quality (Sonar), continuous integration (Jenkins)Private deployment, unified management, for developersJeesz UIBased on BOOTSTRAP4Simple, intuitive, and powerful, the most popular HTML, CSS, and JS frameworks for developing responsive layouts, mobile de

loadbalancerclient and initiating requests directly through Resttemplate.@RestControllerpublic class DcController {@AutowiredRestTemplate restTemplate;@GetMapping("/consumer")public String dc() {return restTemplate.getForObject("http://eureka-client/dc", String.class);}}As you can see here, in addition to removing the original logic related to Loadbalancerclient, our first URL parameter is somewhat special for resttemplate use. The host location requested here is not in the form of a specific I

Config /c7>=NewStripprefixgatewayfilterfactory.config (); Config.setparts (1); returnbuilder.routes (). Route ("Host_route", R--R.path ("/a/**"). Filters (F-f.stripprefix (1)). Uri ("http://localhost:8081"). Route ("Host_route", R--R.path ("/b/**"). Filters (F-f.stripprefix (1)). Uri ("http://localhost:8082") . Build (); } Public Static voidMain (string[] args) {springapplication.run (application.class, args); }}Other featuresHttp://cloud.spring.io/spring-cloud-gateway/single/spring-cloud-g

();System.out.println(services);return services;}After restarting Eureka-client, try to access Localhost:2101/consumer, and we will get the return result: fallback. We can see from the console of the eureka-client that the service provider outputs the results that were originally to be returned, but because the service consumer triggered a service request timeout exception due to a delay of 5 seconds before it was returned, the service consumer was executed by the downgrade logic specified in th

();System.out.println(services);return services;}After you start eureka-client, try to access Localhost:2101/consumer again, and we'll get the return result: fallback. We can see from the console of the eureka-client that the service provider outputs the results that were originally to be returned, but because the service consumer triggered a service request timeout exception due to a delay of 5 seconds before it was returned, the service consumer was executed by the downgrade logic specified in

computing model that combines streaming data with batch data processing.Spring Cloud SecurityAdd security controls to your application based on the Spring Security Toolkit.Spring Cloud ZookeeperA toolkit for manipulating zookeeper for service discovery and configuration management using the zookeeper approach.Spring Cloud StreamThe Data flow Operation development package encapsulates the sending and receiving messages with Redis,rabbit, Kafka, and so on.Spring Cloud CLIBased on the Spring Boot

restTemplate.getForObject(url, String.class);}}As you can see here, we inject loadbalancerclient and resttemplate, and in the implementation of the/consumer interface, First, a Eureka-client service instance is selected through the Choose function of Loadbalancerclient, which is stored in serviceinstance, and the information in these objects is then spliced out to access/ The detailed address of the DC interface, and finally uses the Resttemplate object to implement the call to the service prov

to see if data validation successfully registered serviceBrowser Access http://localhost:8080/self interface, which accesses the binding's own provided rest Interface Service through the feign client appclient/hi8.2. Configuration CenterZookeeperprovides aHierarchical Namespaces, allowing clients to store arbitrary data, such as configuration data. Spring Cloud Zookeeper Configis a Config Server and Client alternative to the project. In a special“Boot”stage, the configuration is loaded into the

() + ":" + serviceInstance.getPort() + "/dc"; System.out.println(url); return restTemplate.getForObject(url, String.class); }}As you can see here, we inject loadbalancerclient and resttemplate, and in the implementation of the/consumer interface, First, a Eureka-client service instance is selected through the Choose function of Loadbalancerclient, which is stored in serviceinstance, and the information in these objects is then spliced out to access/ The detailed address of the D