springcloud(Brixton版) EurekaServer Zuul构建API Gateway

刺骨的言语ヽ痛彻心扉 2023-08-17 17:07 41阅读 0赞

1.启动 [https://blog.csdn.net/qq\_33371766/article/details/101622727][https_blog.csdn.net_qq_33371766_article_details_101622727] 这里面的EurekaServer服务端。

2.创建微服务A（[https://blog.csdn.net/qq\_33371766/article/details/101622897][https_blog.csdn.net_qq_33371766_article_details_101622897]）

3.创建微服务B （[https://blog.csdn.net/qq\_33371766/article/details/101622897][https_blog.csdn.net_qq_33371766_article_details_101622897]）

4.上面的两个微服务就是EurekaServer 消费端  两个项目就是端口不一样 服务名不一样 两个微服务的controller修改成下面的逻辑代码

项目A配置文件
    spring.application.name=service-A
    server.port=2222
    eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/

项目A controller逻辑代码
    @Autowired
    private DiscoveryClient client;
    
    @RequestMapping(value = "/add" ,method = RequestMethod.GET)
    public String add(@RequestParam Integer a, @RequestParam Integer b) {
        ServiceInstance instance = client.getLocalServiceInstance();
        Integer r = a + b;
        logger.info("/add, host:" + instance.getHost() + ", service_id:" + instance.getServiceId() + ", result:" + r);
        return "From Service-A, Result is " + r;
    }

项目B配置文件

spring.application.name=service-B
    server.port=3333
    eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/

项目B controller代码

@Autowired
    private DiscoveryClient client;
    
    @RequestMapping(value = "/add" ,method = RequestMethod.GET)
    public String add(@RequestParam Integer a, @RequestParam Integer b) {
        ServiceInstance instance = client.getLocalServiceInstance();
        Integer r = a + b;
        logger.info("/add, host:" + instance.getHost() + ", service_id:" + instance.getServiceId() + ", result:" + r);
        return "From Service-B, Result is " + r;
    }

其他跟[https://blog.csdn.net/qq\_33371766/article/details/101622897][https_blog.csdn.net_qq_33371766_article_details_101622897] 项目一样。

以上就配置好了两个微服务。

5.创建api-gateway项目

6.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.didispace</groupId>
       <artifactId>api-gateway</artifactId>
       <version>1.0.0</version>
       <packaging>jar</packaging>
    
       <name>api-gateway</name>
       <description>Spring Cloud project</description>
    
       <parent>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-parent</artifactId>
          <version>1.3.5.RELEASE</version>
          <relativePath/> 
       </parent>
    
       <properties>
          <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
          <java.version>1.8</java.version>
       </properties>
    
       <dependencies>
    
          <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-zuul</artifactId>
          </dependency>
    
          <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-eureka</artifactId>
          </dependency>
    
       </dependencies>
    
       <dependencyManagement>
          <dependencies>
             <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Brixton.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
             </dependency>
          </dependencies>
       </dependencyManagement>
       
       <build>
          <plugins>
             <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
          </plugins>
       </build>
    
    </project>

7.application.properties

spring.application.name=api-gateway
    server.port=5555
    
    # routes to serviceId
    zuul.routes.api-a.path=/api-a/**
    zuul.routes.api-a.serviceId=service-A
    
    zuul.routes.api-b.path=/api-b/**
    zuul.routes.api-b.serviceId=service-B
    
    # routes to url
    zuul.routes.api-a-url.path=/api-a-url/**
    zuul.routes.api-a-url.url=http://localhost:2222/
    
    # 项目b的路由
    zuul.routes.api-b-url.path=/api-b-url/**
    zuul.routes.api-b-url.url=http://localhost:3333/
    
    eureka.client.serviceUrl.defaultZone=http://localhost:1111/eureka/

8.启动类

import org.springframework.boot.builder.SpringApplicationBuilder;
    import org.springframework.cloud.client.SpringCloudApplication;
    import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
    
    @EnableZuulProxy
    @SpringCloudApplication
    public class Application {
    
       public static void main(String[] args) {
          new SpringApplicationBuilder(Application.class).web(true).run(args);
       }
    
    }

9.测试[http://localhost:1111/][http_localhost_1111] 可以看到注册到上面的两个微服务和api-getway 都注册了

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70][]

[http://192.168.8.1:5555/api-a/add?a=10&b=20][http_192.168.8.1_5555_api-a_add_a_10_b_20]

![20190930130344553.png][]

[http://192.168.8.1:5555/api-b/add?a=10&b=20][http_192.168.8.1_5555_api-b_add_a_10_b_20]

![20190930130403318.png][]

[http://192.168.8.1:5555/api-b-url/add?a=10&b=20][http_192.168.8.1_5555_api-b-url_add_a_10_b_20]

![20190930130418573.png][]

[http://192.168.8.1:5555/api-a-url/add?a=10&b=20][http_192.168.8.1_5555_api-a-url_add_a_10_b_20]

![20190930130439333.png][]

ok！！！

[https_blog.csdn.net_qq_33371766_article_details_101622727]: https://blog.csdn.net/qq_33371766/article/details/101622727
[https_blog.csdn.net_qq_33371766_article_details_101622897]: https://blog.csdn.net/qq_33371766/article/details/101622897
[http_localhost_1111]: http://localhost:1111/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMzMzcxNzY2_size_16_color_FFFFFF_t_70]: /images/20230808/637811c712c04520a9fb26808c3cb332.png
[http_192.168.8.1_5555_api-a_add_a_10_b_20]: http://192.168.8.1:5555/api-a/add?a=10&b=20
[20190930130344553.png]: /images/20230808/cba0f596ca474ad79ea0cfeb614227fc.png
[http_192.168.8.1_5555_api-b_add_a_10_b_20]: http://192.168.8.1:5555/api-b/add?a=10&b=20
[20190930130403318.png]: /images/20230808/25262d0da2a84c448d35b3373488bf64.png
[http_192.168.8.1_5555_api-b-url_add_a_10_b_20]: http://192.168.8.1:5555/api-b-url/add?a=10&b=20
[20190930130418573.png]: /images/20230808/46bcd2522e5041ba98bcdd19d5796f16.png
[http_192.168.8.1_5555_api-a-url_add_a_10_b_20]: http://192.168.8.1:5555/api-a-url/add?a=10&b=20
[20190930130439333.png]: /images/20230808/1f080aed11dc46eb8359dca061f332f7.png