SpringCloud microservices can also be used by Xiaobai (Hoxton.SR8) (1) Eureka|Service Registration and Discovery

Others 2020-10-29 12:15:46 views: null

Simply get started, copy directly, and you can build a microservice (Hoxton.SR8) 2020.8.28 is released, the articles built by SpringCloud are being sorted out, don’t miss out on dry goods
https://spring.io/blog/2020/08/28/spring- cloud-hoxton-sr8-has-been-released

1. Create a parent pom project

note:

  1. Spring Assistant is a plug-in, you need to install it yourself, installation tutorial reference
  2. The third picture, there is no mandatory selection of components before, it should be the version of ideaj, it doesn’t matter, let’s select one first, and delete it after creation.
  3. The springboot version we use is 2.2.10
  4. Finally choose your project name and project location

   

1.1 The content of parent pom.xml at the current stage

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <packaging>pom</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.10.RELEASE</version>
        <relativePath/>
    </parent>
    <groupId>com.zqh.www</groupId>
    <artifactId>cloud-hoxton-sr8</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>cloud-hoxton-sr8</name>
    <description>Hoxton.SR8微服务</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR8</spring-cloud.version>
    </properties>

    <dependencies>
    </dependencies>

    <!-- https://spring.io/blog/2020/08/28/spring-cloud-hoxton-sr8-has-been-released -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2. Create Eureka registry

note:

  1. Right-click the project to create a module, select Maven, click next, and then fill in your project name

   

2.1 The content of pom.xml of the eureka-server project at the current stage

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>cloud-hoxton-sr8</artifactId>
        <groupId>com.zqh.www</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>eureka-server</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
         <!-- 给Eureka注册中心添加认证 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

2.2 Configure EurekaServerApplication and application.yml

note:

  1. ideaj did not help me generate the package path, Application file, and application.yml, so here is my own creation
package com.zqh.www;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
import org.springframework.core.env.Environment;

/**
 * 开启eureka服务
 */
@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {

    private final static Logger logger = LoggerFactory.getLogger(EurekaServerApplication.class);

    public static void main(String[] args) {
        Environment env = SpringApplication.run(EurekaServerApplication.class, args).getEnvironment();
        logger.info(
                "\n----------------------------------------------------------\n\t"
                        + "Application '{}' is running! Access URLs:\n\t"
                        + "Local: \t\thttp://localhost:{}{}"
                        + "\n----------------------------------------------------------",
                env.getProperty("spring.application.name"), env.getProperty("server.port"),
                env.getProperty("server.servlet.context-path") != null ? env.getProperty("server.servlet.context-path") : "");
    }
}

server:
  port: 8081
spring:
  application:
    name: eureka-server
  security:
    user:
      # 配置spring security登录用户名和密码
      name: root
      password: root
eureka:
  client:
    # 让自己不需要注册在上面禁止客户端注册，表明自己是一个eureka server
    register-with-eureka: false
    fetch-registry: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
  instance:
    hostname: localhost
package com.zqh.www.config;

import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

/**
 * 默认情况下添加SpringSecurity依赖的应用每个请求都需要添加CSRF token才能访问，Eureka客户端注册时并不会添加，所以需要配置/eureka/**路径不需要CSRF token。
 */
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().ignoringAntMatchers("/eureka/**");
        super.configure(http);
    }
}

  

2.3 Browser access to eureka service page

Note: Click to visit http://localhost:8081   Account: root Password: root

3. Create a client and register

note:

  1. Right-click the project to create a module, select Maven, click next, and then fill in your project name
  2. Follow the steps in 2.2 to create the package path, EurekaClientApplication and application.yml

   

3.1 The pom.xml content of the eureka-client project at the current stage

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>cloud-hoxton-sr8</artifactId>
        <groupId>com.zqh.www</groupId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>eureka-client</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

3.2 EurekaClientApplication 和 application.yml 

package com.zqh.www;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.core.env.Environment;

/**
 * 开启eureka客户端
 */
@EnableEurekaClient
@SpringBootApplication
public class EurekaClientApplication {

    private final static Logger logger = LoggerFactory.getLogger(EurekaClientApplication.class);

    public static void main(String[] args) {
        Environment env = SpringApplication.run(EurekaClientApplication.class, args).getEnvironment();
        logger.info(
                "\n----------------------------------------------------------\n\t"
                        + "Application '{}' is running! Access URLs:\n\t"
                        + "Local: \t\thttp://localhost:{}{}"
                        + "\n----------------------------------------------------------",
                env.getProperty("spring.application.name"), env.getProperty("server.port"),
                env.getProperty("server.servlet.context-path") != null ? env.getProperty("server.servlet.context-path") : "");
    }
}

server:
  port: 8083
spring:
  application:
    name: eureka-client
eureka:
  client:
    service-url:
      #注册地址
      defaultZone: http://root:root@localhost:8081/eureka/
  #显示服务器IP加端口
  instance:
    hostname: localhost
    prefer-ip-address: true
    instance-id: ${spring.cloud.client.ip-address}:${server.port}

4. Refresh the browser eureka service page, the service registration is complete

5. Summary

  • Complete the start of eureka service and add security authorization verification
  • Complete client registration eureka

6.gitee address

Source code reference

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Origin blog.csdn.net/itjavaee/article/details/109045823
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