Spring Cloud 微服務架構搭建
阿新 • • 發佈：2018-11-08
Spring Cloud 微服務架構搭建（使用jenkins+docker自動部署）
Author:周留名
前言：由於專案框架升級，由SSM框架改為Springboot框架,然後整合Spring Cloud
1.SpringCloud簡介
Spring Cloud 是一個相對比較新的微服務框架，2016 才推出 1.0 的 Release 版本. 但是其更新特別快，幾乎每 1-2 個月就有一次更新，雖然 Spring Cloud 時間最短, 但是相比 Dubbo 等 RPC 框架, Spring Cloud 提供的全套的分散式系統解決方案。
Spring Cloud 為開發者提供了在分散式系統（配置管理，服務發現，熔斷，路由，微代理，控制匯流排，一次性 Token，全居瑣，Leader 選舉，分散式 Session，叢集狀態）中快速構建的工具，使用 Spring Cloud 的開發者可以快速的啟動服務或構建應用、同時能夠快速和雲平臺資源進行對接。
2.SpringCloud執行模式
3.建立一個eureka註冊中心
這裡使用idea開發，首先建立一個eureka-server專案作為註冊中心建立過程不再細說，直接看配置
1.pom.xml檔案
<?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" 2.application.yml配置檔案
server:
port: 8761
spring:
application:
name: eureka-server
eureka:
instance:
#eureka例項主機名
hostname: 123.207.82.109
client:
#不把自己註冊到eureka上面
register-with-eureka: false
#不從eureka上獲取服務
fetch-registry: false
#註冊中心地址
service-url:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
3. 啟動類
package com.zlm.eureka;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
/**
* @Description: Eureka註冊中心
* 1.配置Eureka基本資訊
* [email protected]啟用註冊中心
*/
@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {
public static void main(String[] args) {
SpringApplication.run(EurekaServerApplication.class, args);
}
}
4.docker配置檔案
docker檔案存放路徑為/src/main/java/docker/Dockerfile
FROM java:8
VOLUME /tmp
ADD eureka.jar app.jar
RUN bash -c 'touch /app.jar'
ENTRYPOINT ["java","-D java.security.egd=file:/dev/./urandom","-jar","/app.jar"]
5.執行結果
這是最終部署好的執行圖
4.建立一個Provider服務提供者
建立一個專案provider 作為服務提供者
1.pom.xml檔案
<?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.zlm</groupId>
<artifactId>provider</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>provider</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.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>
<spring-cloud.version>Greenwich.M1</spring-cloud.version>
<druid.version>1.1.10</druid.version>
<mybatis.boot.starter.version>1.3.1</mybatis.boot.starter.version>
<mysql.connector.java.version>5.1.44</mysql.connector.java.version>
<log4j.version>1.3.8.RELEASE</log4j.version>
</properties>
<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-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--資料庫連線池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>${druid.version}</version>
</dependency>
<!--mybatis 依賴-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${mybatis.boot.starter.version}</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.5</version>
</dependency>
<!--mysql連線依賴-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.connector.java.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!--新增fastjson依賴-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.7</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<finalName>provider</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>0.2.3</version> <configuration>
<imageName>${project.artifactId}</imageName>
<dockerDirectory>src/main/docker</dockerDirectory>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>
2.application.yml配置檔案
server:
port: 8762
spring:
application:
name: provider
datasource:
username: ****
password: ****
url: jdbc:mysql://127.0.0.1:3306/mydb?useUnicode=true&characterEncoding=utf-8&useSSL=true
driver-class-name: com.mysql.jdbc.Driver
type: com.alibaba.druid.pool.DruidDataSource
mybatis:
# mapper 所對應介面所在位置
mapper-locations: classpath:/mapper/*Mapper.xml
# MyBatis mapper所對應實體類
type-aliases-package: com.zlm.provider.pojo
#開啟駝峰命名規則
configur