Spring Cloud alibaba之一 部署nacos & 集成dubbo
环境
nacos-2.2.0
Spring Cloud-2.1.2.RELEASE
CentOS Linux release 7.9.2009 (Core)
部署三台虚拟机IP:192.168.6.102:8848,192.168.6.103:8848,192.168.6.104:8848
一、部署nacos
1、下载、编译nacos
#下载代码 这里下载2.2.0版本 git clone -b 2.2.0 https://github.com/alibaba/nacos.git #构建 cd nacos/ mvn -Prelease-nacos -Dmaven.test.skip=true clean install -U #查看构建结果 ls -al distribution/target/ cd distribution/target/nacos-server-2.2.0/nacos/
将distribution/target/nacos-server-2.2.0 下nacos上传到服务器即可
2、数据库配置
(1)mysql创建UTF8数据的数据库:nacos_config,然后使用navicat接连该数据库执行脚本:nacos/conf/mysql-schema.sql
(2)修改nacos数据库连接:nacos/conf/application.properties
#*************** Config Module Related Configurations ***************# ### If use MySQL as datasource: 如果使用mysql 开启这一行注释 spring.datasource.platform=mysql ### Count of DB: db.num=1 ### Connect URL of DB: db.url.0=jdbc:mysql://node102:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC db.user.0=root db.password.0=123456
3、集群配置
复制一份集群配置文件:cp nacos/conf/cluster.conf.example nacos/conf/cluster.conf
#2023-01-12T11:24:11.094 192.168.6.102:8848 192.168.6.103:8848 192.168.6.104:8848
4、启停
#启动 [root@node104 bin]# sh ./startup.sh /usr/local/jdk1.8.0_271/bin/java -Djava.ext.dirs=/usr/local/jdk1.8.0_271/jre/lib/ext:/usr/local/jdk1.8.0_271/lib/ext -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/local/nacos/logs/java_heapdump.hprof -XX:-UseLargePages -Dnacos.member.list= -Xloggc:/usr/local/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/local/nacos/plugins,/usr/local/nacos/plugins/health,/usr/local/nacos/plugins/cmdb,/usr/local/nacos/plugins/selector -Dnacos.home=/usr/local/nacos -jar /usr/local/nacos/target/nacos-server.jar --spring.config.additional-location=file:/usr/local/nacos/conf/ --logging.config=/usr/local/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288 nacos is starting with cluster nacos is starting,you can check the /usr/local/nacos/logs/start.out #停止 [root@node104 bin]# sh ./shutdown.sh The nacosServer(1826) is running... Send shutdown request to nacosServer(1826) OK
5、控制台
http://192.168.6.102:8848/nacos/ 用户名/密码:nacos/nacos http://192.168.6.103:8848/nacos/ 用户名/密码:nacos/nacos http://192.168.6.104:8848/nacos/ 用户名/密码:nacos/nacos
二、集成dubbo
0、代码模块整体pom
<?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.zhss.demo</groupId> <artifactId>demo-dubbo-nacos</artifactId> <packaging>pom</packaging> <version>1.0-SNAPSHOT</version> <modules> <module>demo-dubbo-nacos-api</module> <module>demo-dubbo-nacos-ServiceA</module> <module>demo-dubbo-nacos-ServiceB</module> </modules> </project>
1、接口模块pom
<?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>demo-dubbo-nacos</artifactId> <groupId>com.zhss.demo</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>demo-dubbo-nacos-api</artifactId> </project>
2、服务提供者
2.1 pom.xml
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<?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>demo-dubbo-nacos</artifactId> <groupId>com.zhss.demo</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>demo-dubbo-nacos-ServiceA</artifactId> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <spring-cloud.version>Greenwich.SR2</spring-cloud.version> </properties> <dependencies> <!-- spring-cloud依赖 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter</artifactId> <version>2.1.2.RELEASE</version> <exclusions> <exclusion> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-context</artifactId> </exclusion> </exclusions> </dependency> <!-- dubbo依赖 --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-dubbo</artifactId> <version>2.1.2.RELEASE</version> </dependency> <dependency> <groupId>com.zhss.demo</groupId> <artifactId>demo-dubbo-nacos-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <!-- nacos依赖 --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-alibaba-nacos-discovery</artifactId> <version>2.1.1.RELEASE</version> <exclusions> <exclusion> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-context</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-context</artifactId> <version>2.1.1.RELEASE</version> </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> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <version>2.1.1.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-alibaba-dependencies</artifactId> <version>2.1.1.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> </project>
2.2 application.properties
#微服务名称 spring.application.name=demo-dubbo-nacos-ServiceA #扫描包 dubbo.scan.base-packages=com.zhss.demo.dubbo.nacos #dubbo使用的协议名称、监听端口 dubbo.protocol.name=dubbo dubbo.protocol.port=20880 #dubbo所使用的注册中心(这里使用spring-cloud中集成的注册中心,当然也可以是zk) dubbo.registry.address=spring-cloud://localhost #注册中心地址 spring.cloud.nacos.discovery.server-addr=192.168.6.102:8848,192.168.6.103:8848,192.168.6.104:8848
3、服务消费者pom
2.1 pom.xml
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<?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>demo-dubbo-nacos</artifactId> <groupId>com.zhss.demo</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>demo-dubbo-nacos-ServiceB</artifactId> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <version>2.1.3.RELEASE</version> </dependency> <!-- spring-cloud依赖 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter</artifactId> <version>2.1.2.RELEASE</version> </dependency> <!-- dubbo依赖 --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-starter-dubbo</artifactId> <version>2.1.2.RELEASE</version> </dependency> <dependency> <groupId>com.zhss.demo</groupId> <artifactId>demo-dubbo-nacos-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <!-- nacos依赖 --> <dependency> <groupId>com.alibaba.cloud</groupId> <artifactId>spring-cloud-alibaba-nacos-discovery</artifactId> <version>2.1.1.RELEASE</version> <exclusions> <exclusion> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-context</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-context</artifactId> <version>2.1.1.RELEASE</version> </dependency> <!-- http依赖 用于cntroller测试 --> <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.5</version> </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> </project>
2.2 application.properties
#微服务名称 spring.application.name=demo-dubbo-nacos-ServiceB #dubbo订阅的微服务名称 dubbo.cloud.subscribed-services=demo-dubbo-nacos-ServiceA #扫描包 dubbo.scan.base-packages=com.zhss.demo.dubbo.nacos #注册中心地址 spring.cloud.nacos.discovery.server-addr=192.168.6.102:8848,192.168.6.103:8848,192.168.6.104:8848
4、nacos查看dubbo服务列表
5、代码参考:https://github.com/cac2020/deme-nacos-dubbo
学习技术不是用来写HelloWorld和Demo的,而是要用来解决线上系统的真实问题的.