实践
一、新建一个父级maven项目SpringCloud,以后的各个项目都作为它的子项目,我们这里用的SpringBoot版本为1.5.13.RELEASE,SpringCloud版本为Dalston.SR5
pom.xml:
<?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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.yj</groupId>
<artifactId>SpringCloud</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>SpringCloud</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.13.RELEASE</version>
<relativePath />
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
</dependencies>
<modules>
<module>EurekaServer</module>
<module>EurekaClient</module>
</modules>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Dalston.SR5</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
二、新建EurekaServer项目
①其项目结构
②pom.xml
<?xml version="1.0"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.yj</groupId>
<artifactId>SpringCloud</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>EurekaServer</artifactId>
<name>EurekaServer</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
</dependencies>
<build>
<finalName>${artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>com.yj.eureka.EurekaServerApplication</mainClass>
<addClasspath>true</addClasspath>
<classpathPrefix>lib</classpathPrefix>
</manifest>
<manifestEntries>
<Class-Path>./</Class-Path>
</manifestEntries>
</archive>
<excludes>
<exclude>config/**</exclude>
<exclude>**.xml</exclude>
<exclude>**.properties</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptors>
<descriptor>src/main/build/package.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
<testResources>
<testResource>
<directory>src/main/resources</directory>
</testResource>
</testResources>
</build>
</project>
③EurekaServerApplication
package com.yj.eureka;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
④application.properties
spring.application.name=eureka-server
eureka.instance.prefer-ip-address=true
eureka.instance.instance-id=${spring.cloud.client.ipAddress}:${server.port}
eureka.instance.hostname= ${spring.cloud.client.ipAddress}
security.basic.enabled=true
security.user.name=admin
security.user.password=123456
⑤application-peer1.properties
server.port=8001
eureka.instance.hostname=peer1
eureka.client.serviceUrl.defaultZone=http://admin:123456@peer2:8002/eureka/
⑥application-peer2.properties
server.port=8002
eureka.instance.hostname=peer2
eureka.client.serviceUrl.defaultZone=http://admin:123456@peer1:8001/eureka/
⑦startAll.sh
#! /bin/bash
moduleName="EurekaServer"
java -jar ./$moduleName.jar --spring.profiles.active=peer1 &
java -jar ./$moduleName.jar --spring.profiles.active=peer2 &
⑧package.xml(将配置文件从jar包中剥离出来)
<?xml version="1.0" encoding="UTF-8"?>
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3
http://maven.apache.org/xsd/assembly-1.1.3.xsd">
<id>package</id>
<formats>
<format>zip</format>
</formats>
<includeBaseDirectory>true</includeBaseDirectory>
<fileSets>
<fileSet>
<directory>bin</directory>
<outputDirectory>/</outputDirectory>
</fileSet>
<fileSet>
<directory>src/main/resources</directory>
<outputDirectory>/</outputDirectory>
<excludes>
<exclude>mapper/**</exclude>
</excludes>
</fileSet>
<fileSet>
<directory>${project.build.directory}</directory>
<outputDirectory>/</outputDirectory>
<includes>
<include>${artifactId}.jar</include>
</includes>
</fileSet>
</fileSets>
<dependencySets>
<dependencySet>
<outputDirectory>lib</outputDirectory>
<scope>runtime</scope>
<excludes>
<exclude>${groupId}:${artifactId}</exclude>
</excludes>
</dependencySet>
</dependencySets>
</assembly>
⑨我们在主机的/etc/hosts文件中加入
127.0.0.1 peer1
127.0.0.1 peer2
部署启动,然后访问http://192.168.37.138:8001/或者是http://192.168.37.138:8002/,输入账号密码后可以看到eureka的界面
至此,eureka集群部署完毕
三、新建一个Eureka客户端项目,验证实例能否成功注册到eureka上面
①项目结构
②EurekaClientApplication
package com.yj.eureka;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
@SpringBootApplication
@EnableEurekaClient
public class EurekaClientApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaClientApplication.class, args);
}
}
③application.properties
server.port=8003
spring.application.name=eureka-client
eureka.client.serviceUrl.defaultZone=http://admin:123456@192.168.37.138:8001/eureka,http://admin:123456@192.168.37.138:8002/eureka
eureka.instance.prefer-ip-address=true
eureka.instance.instance-id=${spring.cloud.client.ipAddress}:${server.port}
eureka.instance.hostname=${spring.cloud.client.ipAddress}
④start.sh和stop.sh
#! /bin/bash
moduleName="EurekaClient"
pidPath="./$moduleName-tpid"
rm -f $pidPath
java -jar ./$moduleName.jar &
echo $!>$pidPath
#! /bin/bash
moduleName="EurekaClient"
tpid=`cat ./$moduleName-tpid | awk '{print $1}'`
tpid=`ps -aef | grep $tpid | grep -v grep | grep $moduleName |awk '{print $2}' `
if [ ${tpid} ];then
kill -9 $tpid
fi
⑤pom.xml
<?xml version="1.0"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.yj</groupId>
<artifactId>SpringCloud</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>EurekaClient</artifactId>
<name>EurekaClient</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<finalName>${artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>com.yj.eureka.EurekaClientApplication</mainClass>
<addClasspath>true</addClasspath>
<classpathPrefix>lib</classpathPrefix>
</manifest>
<manifestEntries>
<Class-Path>./</Class-Path>
</manifestEntries>
</archive>
<excludes>
<exclude>config/**</exclude>
<exclude>**.xml</exclude>
<exclude>**.properties</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptors>
<descriptor>src/main/build/package.xml</descriptor>
</descriptors>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
<testResources>
<testResource>
<directory>src/main/resources</directory>
</testResource>
</testResources>
</build>
</project>
⑥package.xml(将配置文件从jar包中剥离出来)
<?xml version="1.0" encoding="UTF-8"?>
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3
http://maven.apache.org/xsd/assembly-1.1.3.xsd">
<id>package</id>
<formats>
<format>zip</format>
</formats>
<includeBaseDirectory>true</includeBaseDirectory>
<fileSets>
<fileSet>
<directory>bin</directory>
<outputDirectory>/</outputDirectory>
</fileSet>
<fileSet>
<directory>src/main/resources</directory>
<outputDirectory>/</outputDirectory>
<excludes>
<exclude>mapper/**</exclude>
</excludes>
</fileSet>
<fileSet>
<directory>${project.build.directory}</directory>
<outputDirectory>/</outputDirectory>
<includes>
<include>${artifactId}.jar</include>
</includes>
</fileSet>
</fileSets>
<dependencySets>
<dependencySet>
<outputDirectory>lib</outputDirectory>
<scope>runtime</scope>
<excludes>
<exclude>${groupId}:${artifactId}</exclude>
</excludes>
</dependencySet>
</dependencySets>
</assembly>
⑦EurekaClientController(为下一篇的Ribbon做准备)
package com.yj.eureka.controller;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class EurekaClientController {
@Value("${server.port}")
String port;
@RequestMapping("/hiEureka")
public String hiEureka(@RequestParam(value = "name", defaultValue = "yj") String name) {
return "hi " + name + " ,i am from port:" + port;
}
}
⑧部署,分别启动8003,8004两个端口的EurekaClient实例,可以看到,EurekaClient项目成功注册到了Eureka集群上