(Eureka), Circuit breakers (Hystrix), intelligent routing (Zuul), Client load Balancing (Ribbon), etc.First, create a "service registration center"Create a basic spring boot project, namedeureka-server pom.xml Import@EnableEurekaServerStart a service registry with annotations to provide conversations for other apps.@EnableEurekaServer @springbootapplication Public class appleapplication { publicstaticvoid main (string[] args) { New Sp
;ImportOrg.springframework.cloud.config.server.EnableConfigServer;Importorg.springframework.cloud.netflix.eureka.enableeurekaclient;@ Springbootapplication@enableeurekaclient@enableconfigserver Public classconfigserverapplication { Public Static voidMain (string[] args) {Springapplication.run (configserverapplication.class, args); }}Second, Spring Cloud Config ClientNew spring Boot project, named Configclient1.pom.xml adding dependenciesxsi:schemaloca
requirements, you need to add an annotation to the startup class @MapperScan as follows:Package Cloud.kafka;Import Org.mybatis.spring.annotation.MapperScan;Import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.springbootapplication;import org.springframework.transaction.annotation.enabletransactionmanagement; @SpringBootApplication @EnableTransactionManagement //If a transaction annotation is added to the se
spring boot project, named: config-server-git , and pom.xml introduce the following dependencies in (omitting the parent and dependencymanagement sections):
dependencies> dependency> groupid>org.springframework.cloudgroupid> artifactid>spring-cloud-config-serverartifactid> dependency> dependencies>
Create a spring boot program main class and add @EnableConfigServer annotations to open the service-side capabilities of Spring Cloud CONFIG.
-url.defaultzone=http://Salve:7999/eurekaThe startup file for Eureka_register_master is as follows:Package Com.ysl;import Org.springframework.boot.springapplication;import Org.springframework.boot.autoconfigure.springbootapplication;import Org.springframework.cloud.netflix.eureka.server.EnableEurekaServer, @EnableEurekaServer @springbootapplication Public class application { publicstaticvoid Main (string[] args) { springapplication.run (a
exclude it)
16.2 excluding specific auto-configuration classesBy defining the properties of the automatic configuration annotation, such as@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
Spring Beans and Dependency Injection use @ComponentScan annotations to scan corresponding packet discovery Beans, use @Autowired (constructor injection) to assemble beans automatically, and if you use the recommended structure to organize your code, you can eliminate the @Co
machine, I need to bind the host.127.0.0.1 Master127.0.0.1 BackupThe second step: Add boot files are Applicationmaster.java,applicationbackup.javaThe contents of the code are the same @EnableEurekaServer @SpringBootApplication public class ApplicationMaster { public static void main(String[] args) { SpringApplication.run(ApplicationMaster.class, args); } } @EnableEurekaServer @
web, and the JSON jar package is included inside the123456789Ten One A - - the - - - + - + A at - - -3, writing the Program entry class1 PackageCom.springbooot2;2 3 Importorg.springframework.boot.SpringApplication;4 Importorg.springframework.boot.autoconfigure.SpringBootApplication;5 6 /**7 * Hello world!8 *9 */Ten @SpringBootApplication One Public classApp A { - - Public Static voidMain (string[] args)throwsException { theSpringapplica
1.Spring boot annotations(1) @SpringBootApplication the Spring component scan and spring boot automatic configuration are turned on, in fact, @Spring Bootapplication is the combination of three annotations, the three annotations are@Configuration, @ComponentScan, @EnanleAutoConfiguration, in earlier versions of spring, you need to use these three annotations on the class at the same time, but starting with spring Boot1.2.0, Just use the @
; Artifactid>Spring-boot-starter-webArtifactid> Dependency> exposure to a variety of indicators seems to be necessary - Dependency> groupId>Org.springframework.bootgroupId> Artifactid>Spring-boot-starter-actuatorArtifactid> Dependency> Dependency> groupId>Org.springframework.cloudgroupId> Artifactid>Spring-cloud-config-serverArtifactid> Dependency> Dependencies>New Entry Class Bootapplication:Impo
In front of the class labeled @springbootapplication, add a@EnableAutoConfiguration annotations.@EnableAutoConfigurationPlus the code on, in general, the database will be added to the table.If not, you might consider adding the following codeImport org.springframework.boot.autoconfigure.EnableAutoConfiguration;Import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;@SpringBootApplicatio
A controller that can be accessed by the path. One * @SpringBootApplication: A * Core annotations of the Spring boot project, the main purpose is to turn on automatic configuration. - */ - @RestController the @SpringBootApplication - Public classDemoApplication { - /** - * The main function is to start the project as a portal + * @paramargs - */ + Public Static voidMain (string[] arg
, rather than a long wait. This does not cause the thread to fail to be released for a long time because of the invocation of the fault service, thus avoiding the spread of the fault in the distributed system.Netflix HystrixThe hystrix is used in spring cloud to realize the function of the circuit breaker. Hystrix is one of Netflix's open source MicroServices framework packages designed to provide greater fault tolerance for latency and failures by controlling the nodes that access remote system
In the process of using springboot for development, we often need to deal with the scenario where a service registry (such as ZK) is required to register the service state with service registries, so that when the service state changes, it can be removed and load balanced.I've come across two ways to register:1, after the spring WebApplication start to complete, directly to register;2. After the servlet container is started, it is registered through listener.This article is a demo of the two way
Spring Boot integrates a lot of things together, and when you build a MAVEN project, you just need to introduce a few dependencies to build the project.1. Build MAVEN Project Structure2. The introduction of spring boot dependency directly to the official website to find it, there are examples of3.pom.xml Import Dependency Package, the beginning of the version of the 1.5.10 do not know why the main method started when Tomcat could not start, and then changed the version can beDependencies>
First, build a springboot project that can be used with Maven or Gradle or other (md not ...). Because this time the focus is on how to add the timer, I will be in these days when there is time to write a how to build a simple springboot project process. Time is limited now, so. I also ask you to forgive me.
Cough. Okay, get into the subject.
Method One: Use the springboot to open the timer with its own entrance.
First we all know that Springboot has a portal of its own, namely @
. Otherwise, Consumer will use the global setting on the Consumer side, which is not controllable for Provider, and is often unreasonable. Consumer-side properties that can be configured on Provider are: Property Description Timeout method call timeout. Retries failed retry count, default is 2. LoadBalance load Balancing algorithm, the default is random random, there can be polling roundrobin, the least active priority leastactive. Actives the maximum concurrent invocation limit on the consumer
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.