spring Cloud 负载均衡fegin跟ribbon的实现过程

1.基于fegin实现过程

pom.xml

 

<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>Srpingcould</groupId>
  <artifactId>spring-feign-server</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>spring-feign-server</name>
  <url>http://maven.apache.org</url>

  <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>Edgware.RELEASE</spring-cloud.version>
    </properties>

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.8.RELEASE</version>
        <relativePath />
</parent>
  <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-ribbon</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-feign</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </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>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

1.2application.properties

spring.application.name=spring-feign-server
server.port=2700
 
eureka.client.service-url.defaultZone=http://localhost:1000/eureka/
1.3实现过程

1.3.1

@RestController
public class AppController {
 
    @Autowired
    AppService appService;
    
    @RequestMapping(value = "/queryOrderStatusById",method = RequestMethod.GET)
    public String queryOrderStatusById(@RequestParam String orderId){
        return appService.queryOrderStatusById(orderId);
    }

@FeignClient(value = "spring-eureka-registrar")
public interface AppService {
    
    @RequestMapping(value = "/queryOrderStatusById", method = RequestMethod.GET)
    String queryOrderStatusById(@RequestParam(value = "orderId") String orderId);
    
}
 

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class FeignServer {
 
    public static void main(String[] args) {
        SpringApplication.run(FeignServer.class, args);
    }
}
---------------------------------------------------------------------------------------------

2.ribbon的实现过程

<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>Srpingcould</groupId>
  <artifactId>spring-ribbon-server</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>spring-ribbon-server</name>
  <url>http://maven.apache.org</url>

 <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>Edgware.RELEASE</spring-cloud.version>
    </properties>

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.8.RELEASE</version>
        <relativePath />
</parent>

<dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-ribbon</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </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>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>
2.application.properties

spring.application.name=spring-ribbon-server
server.port=2000
 
eureka.client.service-url.defaultZone=http://localhost:1000/eureka/
 
3.主方法实现

@RestController
public class AppControler {
 
    @Autowired
    private AppService appService;
    
    @RequestMapping(value = "/queryOrderStatusAndWlInfoByOrderId")
    public String queryOrderStatusAndWlInfoByOrderId(@RequestParam String orderId){
       
        String orderInfo =  appService.queryOrderStatusById(orderId);
    
        String wlInfo =  appService.queryWlInfoByOrderId(orderId);
        
        return orderInfo+wlInfo;
    }
 
@Service
public class AppService {
 
    @Autowired
    RestTemplate restTemplate;
 
    public String queryOrderStatusById(String orderId) {
        return restTemplate.getForObject("http://spring-eureka-registrar/queryOrderStatusById?orderId="+orderId,String.class);
    }
    
    public String queryWlInfoByOrderId(String orderId) {
        return ":success";
    }

@SpringBootApplication
@EnableDiscoveryClient
public class RibbonServer {
 
    public static void main(String[] args) {
        SpringApplication.run(RibbonServer.class, args);
    }
 
    @Bean
    @LoadBalanced
    RestTemplate restTemplate() {
        return new RestTemplate();
    }