MicroService 微服务提供者搭建

本机IP为  192.168.1.102

1.  新建Maven项目   microservice

2.   pom.xml

<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">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.java</groupId>
    <artifactId>microservice</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <name>${project.artifactId}</name>

    <!-- 配置版本常量 -->
    <properties>
        <jdk.version>1.8</jdk.version>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            <version>2.0.0.RELEASE</version>
        </dependency>

        <!-- 在Eureka服务注册中心，完善显示关于微服务信息 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <!-- 热部署 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
            <version>1.2.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>

    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>${jdk.version}</source>
                    <target>${jdk.version}</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <configuration>
                    <delimiters>
                        <delimit>$</delimit>
                    </delimiters>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

3.   application.yml

server:
  port: 8888

spring:
  application:
    name: microservice

eureka:
  client:
    service-url:
      defaultZone: http://192.168.1.102:8080/eureka
  instance:
    instance-id: microservice.java.com
    prefer-ip-address: true #访问路径可以显示IP地址    

info:
  app.name: microservice
  app.update: 2018-10-07
  build.groupId: $project.groupId$
  build.artifactId: $project.artifactId$
  build.version: $project.version$

4.   MicroServiceStarter.java

package com.java.microservice;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@SpringBootApplication
@EnableEurekaClient
@EnableDiscoveryClient
public class MicroServiceStarter extends SpringBootServletInitializer {

    public static void main(String[] args) {
        SpringApplication.run(MicroServiceStarter.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(MicroServiceStarter.class);
    }

}

5.   HostController.java

package com.java.microservice.controller;

import java.net.InetAddress;
import java.util.HashMap;
import java.util.Map;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HostController {

    @GetMapping("/getHostMessage/{id}")
    public Map<String, Object> getHostMessage(@PathVariable String id) {
        Map<String, Object> map = new HashMap<>();
        try {
            InetAddress serverHost = InetAddress.getLocalHost();
            map.put("hostname", serverHost.getHostName());
            map.put("hostAddress", serverHost.getHostAddress());
            map.put("id", id);
        } catch (Exception e) {
            e.printStackTrace();
            map.put("msg", e.getMessage());
        }

        return map;

    }

}

6.  测试

启动  Eureka   服务注册中心，参考  https://www.cnblogs.com/jonban/p/eureka.html

运行MicroServiceStarter.java

浏览器输入Eureka   URL

http://192.168.1.102:8080/

微服务已注册进Eureka

浏览器输入微服务测试 URL

http://192.168.1.102:8888/getHostMessage/hello

返回信息如下

{"hostname":"F6RK2EXYAFARPPS","hostAddress":"192.168.1.102","id":"hello"}

截图如下

运行正常。

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