Springclould整合nacos實現服務間呼叫
阿新 • • 發佈：2022-04-20
理論就不多說了，個人簡單點理解就是，一個專案分成了多個服務模組，相互不影響開發執行，但又能相互呼叫。
1.1直接上效果
專案目錄結構
服務與服務之間呼叫結果
2.1先建父工程
先建父工程，之後每個模組都繼承他就可以了。父工程就只有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>
<artifactId>nacosdemo</artifactId>
<groupId>com.tao</groupId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<!-- 所有的springboot的工程都以spring父工程為父工程 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.2.RELEASE</version>
</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-boot.version>2.3.2.RELEASE</spring-boot.version>
<spring-cloud.version>Hoxton.SR8</spring-cloud.version>
<nacos.version>2.2.5.RELEASE</nacos.version>
</properties>
<modules>
<module>provider</module>
<module>consumer</module>
<module>consumer1</module>
</modules>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<!-- 整合commons工具類 spring-cloud Hoxton.SR8-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
<!-- 整合lombok 框架 -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- 整合redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- 整合aop -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<!-- 整合web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- springboot整合activemq -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-activemq</artifactId>
</dependency>
<!-- 整合傳送郵件-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<!-- 整合mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.0</version>
</dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper</artifactId>
<version>3.3.7</version>
</dependency>
<!-- 阿里巴巴資料來源 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.14</version>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>commons-httpclient</groupId>
<artifactId>commons-httpclient</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.30</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.3</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<!-- nacos -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${nacos.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- nacos -->
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</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>
2.2建立被呼叫者（提供者）provider模組
2.2.1先導pom.xml依賴
<?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>
<parent>
<artifactId>nacosdemo</artifactId>
<groupId>com.tao</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>provider</artifactId>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
注意要加入上面建的父類依賴哈<parent>**********</parent>
2.2.2 配置application.yml
spring:
application:
name: provider
cloud:
nacos:
discovery:
server-addr: 10.1.107.50:8848
server:
port: 8001
2.2.3建個Controller，可給別的模組呼叫
package com.xiaow.test.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class TestController {
@GetMapping("/testnacos")
public String test() {
return "恭喜你，呼叫成功8001";
}
}
2.2.4 建個啟動類
package com.xiaow.test;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@SpringBootApplication
@EnableDiscoveryClient
public class Provider8001 {
public static void main(String[] args){
SpringApplication.run(Provider8001.class,args);
}
}
好了，一個模組完成，其他模組也大致這樣子建立
3.1 建立呼叫者（消費者）consumer模組(步驟同2)
3.1先導pom.xml依賴
<?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>nacosdemo</artifactId>
<groupId>com.tao</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>consumer</artifactId>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
</dependencies>
</project>
3.2，配置aplication.yml檔案
spring:
application:
name: consumer
cloud:
nacos:
discovery:
server-addr: 10.1.107.50:8848
server:
port: 9001
3.3，建立service,這很關鍵，能不能呼叫服務就看他的了
package com.taojunrui.consumer.service;
import com.taojunrui.consumer.service.Impl.TestServiceImpl;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
@FeignClient(name="provider",fallback = TestServiceImpl.class)
public interface TestService {
@GetMapping("/testnacos")
public String test();
}
注意@FeignClient(name="provider"，這個name就是我們想要呼叫模組的名稱，
@GetMapping("/testnacos")
public String test()這兩個要跟被呼叫的模組一樣的，不然調用不了
3.4，建立controller
@RestController
public class TestController {
@Autowired
TestService testService;
@GetMapping("/9001test8001")
public String consumertest(){
return testService.test();
}
}
3.5，建立啟動類Consumer9001
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class Consumer9001 {
public static void main(String[] args){
SpringApplication.run(Consumer9001.class,args);
}
}
4.1啟動上面兩個模組，在nacos可以看到啟動的服務
5.1 測試成功
ok,前提是先裝nacos哈