Springclould整合nacos實現服務間調用

   理論就不多說了，個人簡單點理解就是，一個項目分成了多個服務模塊，相互不影響開發運行，但又能相互調用。

1.1直接上效果

   項目目錄結構

   服務與服務之間調用結果

2.1先建父工程

       先建父工程，之后每個模塊都繼承他就可以了。父工程就只有pom.xml文件

<?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> <!-- 集成commons工具類 spring-cloud Hoxton.SR8--> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> <version>3.4</version> </dependency> <!-- 集成lombok 框架 --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <!-- 集成redis --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <!-- 集成aop --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId> </dependency> <!-- 集成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> <!-- 集成發送郵件--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mail</artifactId> </dependency> <!-- 集成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> <!-- 阿里巴巴數據源 --> <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創建被調用者（提供者）provider模塊

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，可給別的模塊調用

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，調用成功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，一個模塊完成，其他模塊也大致這樣子創建

3.1 創建調用者（消費者）consumer模塊(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文件

spring:
  application:
    name: consumer
  cloud:
    nacos:
      discovery:
        server-addr: 10.1.107.50:8848
server:
  port: 9001

　　3.3，創建service,這很關鍵，能不能調用服務就看他的了

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就是我們想要調用模塊的名稱，

  @GetMapping("/testnacos")
  public String test()這兩個要跟被調用的模塊一樣的，不然調用不了

       3.4，創建controller

@RestController
public class TestController { @Autowired TestService testService; @GetMapping("/9001test8001") public String consumertest(){ return testService.test(); } }

3.5，創建啟動類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啟動上面兩個模塊，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