项目中用到两台注册中心(RAServer-A、RAServer-B)、一台服务提供者(Service-A)、一台消费者(LBServer-A)。其中Service-A既做服务提供者也作为消费者使用,同样地,LBServer-A既可以作为消费者,也作为服务提供者使用。实现了一个简单的分布式微服务,主要功能有服务的注册与发现,负载均衡,服务熔断降级。所有服务通过打war包方式使用tomcat部署。项目管理采用maven。
由于springcloud环境是一个个springboot项目组成,所以直接参照springboot jar包转war包的方式修改。
1.pom.xml文件
2.修改启动类
3.由于要区分不同环境,所以需要把配置文件修改成多个环境的配置文件
【注册中心】
由于springcloud使用的内部tomcat都是缺省应用名,所以修改成war包之后,如果不缺省名称,都需要把application.properties文件中有关的url地址把应用名加上。
#应用名
spring.application.name=eureka-server
#应用端口
server.port=8150
#主机名
eureka.instance.hostname=peer1
#注册中心服务地址,此处需要把应用名加上
eureka.client.serviceUrl.defaultZone=http://peer2:8160/eureka-server/eureka/
#日志等级
logging.level.root=info
#清理间隔
eureka.server.evictionIntervalTimerInMs=1000
【服务提供者】-只提供api数据服务
项目中a,b文件夹表示两台服务器,内部的配置是不同项目,application.properties是通用配置,dev,test,prd区分不同环境。打包使用哪个服务器下哪个环境的配置文件是由pom.xml决定的。
【消费者】-负责页面的渲染和服务的调用
Demo中消费者通过feign进行负载均衡和服务熔断降级。 Feign自带Hystrix。
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.zbjk.lcs.oap</groupId>
<artifactId>oap</artifactId>
<version>1.0.0</version>
<packaging>war</packaging>
<name>oap</name>
<description>this is scheduler system of llt</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<!-- 缁熶竴jar鍖呯増鏈?-->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Camden.SR6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- spring boot鏁村悎web搴旂敤缁勪欢 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!-- 绉婚櫎宓屽叆寮弔omcat鎻掍欢 涓嶇Щ闄や細鍚姩鎶ラ敊 -->
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- spring boot鏁村悎eureka -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<!-- spring boot鏁村悎feign -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
</dependency>
<!-- spring boot鏁村悎redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-redis</artifactId>
<version>1.4.3.RELEASE</version>
</dependency>
<!-- 鐑儴缃?-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<!-- 鍐呯疆鎺ュ彛 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!-- spring boot鏁村悎mybatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.0</version>
</dependency>
<!--mysql jdbc椹卞姩 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- json 瑙f瀽 -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.2</version>
</dependency>
<!-- jstl 鏍稿績鏍囩搴?-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- servlet 绉婚櫎鍐呯疆tomcat鍚庡氨闇€瑕佹坊鍔犲繀瑕佺殑servletapi鍖?-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</dependency>
<!-- 浣跨敤Apache HttpClient鏇挎崲Feign鍘熺敓httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<dependency>
<groupId>com.netflix.feign</groupId>
<artifactId>feign-httpclient</artifactId>
<version>8.18.0</version>
</dependency>
<!--娣诲姞aop鏀寔 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<!--娣诲姞BeanUtils鏀寔锛屾柟渚胯繘琛宒to涓巇omain涔嬮棿鐨勪簰鐩歌浆鎹㈡搷浣?->
<!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils -->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.3</version>
</dependency>
<!--娣诲姞鐨勬敮鎸佸璇ユā鍧楁煇绫绘煇鏂规硶鐨勫畾鏃惰皟搴?->
<dependency>
<groupId>com.zbjk.llt</groupId>
<artifactId>llt</artifactId>
<version>1.0.7</version>
</dependency>
<!--鍒嗛〉 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>4.1.6</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!-- 瀹氬埗鍖朿3p0 -->
<dependency>
<groupId>com.zbjk</groupId>
<artifactId>c3p0</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>mchange-commons-java</artifactId>
<version>0.2.8</version>
</dependency>
<!-- 骞冲彴鏍稿績鍖?-->
<dependency>
<groupId>com.zbjk.platform</groupId>
<artifactId>base-core</artifactId>
<version>0.0.5</version>
</dependency>
<dependency>
<groupId>com.zbjk.platform</groupId>
<artifactId>base-client</artifactId>
<version>0.0.5</version>
</dependency>
<!-- redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- redisson -->
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson</artifactId>
<version>3.3.2</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<!-- spring cloud 娑堟伅璺熻釜 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
</dependencies>
<!-- 鍖哄垎鐜 -->
<profiles>
<profile>
<!-- 寮€鍙戠幆澧?-->
<id>dev</id>
<properties>
<packageEnvironment>dev</packageEnvironment>
</properties>
<!-- 榛樿婵€娲籨ev鐜閰嶇疆 -->
<activation>
<activeByDefault>true</activeByDefault>
</activation>
</profile>
<profile>
<!-- 娴嬭瘯鐜 -->
<id>test</id>
<properties>
<packageEnvironment>test</packageEnvironment>
</properties>
</profile>
<profile>
<!-- 鐢熶骇鐜 -->
<id>prd</id>
<properties>
<packageEnvironment>prd</packageEnvironment>
</properties>
</profile>
</profiles>
<!-- 鎵撳寘鏋勫缓璁剧疆 -->
<build>
<!-- 鎵撳寘璧勬簮 渚濇搴忔墽琛?-->
<resources>
<resource>
<directory>src/main/resources</directory>
<!-- 鍦⊿pringBoot椤圭洰涓浛鎹xxx@鍐呭 -->
<!-- 鍦⊿pringMvc椤圭洰涓浛鎹?{xxx}鍐呭 -->
<filtering>true</filtering>
<excludes>
<exclude>dev/</exclude>
<exclude>test/</exclude>
<exclude>prd/</exclude>
<exclude>application.properties</exclude>
</excludes>
</resource>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>application.properties</include>
</includes>
</resource>
<resource>
<directory>src/main/resources/${packageEnvironment}</directory>
<filtering>true</filtering>
<includes>
<include>application-${packageEnvironment}.properties</include>
<include>logback.xml</include>
</includes>
</resource>
</resources>
<!-- 閫夋嫨鏋勫缓鐨勬彃浠?-->
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
</plugin>
</plugins>
<!-- 鏈€缁堝寘鍚?-->
<finalName>oap</finalName>
</build>
</project>
启动类
package com.zbjk;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.feign.EnableFeignClients;
@EnableDiscoveryClient
@EnableCircuitBreaker
@SpringBootApplication
@MapperScan("com.zbjk.lcs.oap.mapper")
@EnableFeignClients
public class OapApplication extends SpringBootServletInitializer{
public static void main(String[] args) {
new SpringApplicationBuilder(OapApplication.class).web(true).run(args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
// 指向原先用main方法执行的OrdApplication启动类
return builder.sources(OapApplication.class);
}
}
application.properties