SpringCloud微服务云架构构建B2B2C电子商务平台之-Eureka服务消费Feign

<?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.cloud.microservice</groupId>
    <artifactId>ms-eurekaclient-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>ms-eurekaclient-demo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </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-cloud.version>Edgware.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-feign</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-ribbon</artifactId>
        </dependency>
        <!-- 加入断路器依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-hystrix</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>

spring.application.name=ms-eurekaclient-demo
server.port=9800 # 注册中心地址
eureka.client.serviceUrl.defaultZone=http://xx.xx.xx.xx:9000/eureka/  # Indicates whether this client should fetch eureka registry information from eureka server
# 客户端是否要从eureka server获取注册信息，默认为true
eureka.client.fetchRegistry=true # Indicates how often(in seconds) to fetch the registry information from the eureka server
# 从eureka server获取注册信息的频率，默认为30秒，缩短配置时间可以缓解服务上线时间过长的问题
eureka.client.registryFetchIntervalSeconds=10

package com.cloud.microservice.eurekaclientdemo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.cloud.netflix.feign.EnableFeignClients;

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

package com.cloud.microservice.eurekaclientdemo.FeignClient; import org.springframework.cloud.netflix.feign.FeignClient; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod;

@FeignClient("ms-demo-provider") public interface IUserFeignServiceClient { //Feign定义服务提供者接口 @RequestMapping(value = "/demo/user/1.0/findAll", method = RequestMethod.GET, produces = {"application/json;charset=UTF-8"})
    String findAll();
}

package com.cloud.microservice.eurekaclientdemo.FeignClient; public interface IUserService {
    String findAll();
}

package com.cloud.microservice.eurekaclientdemo.FeignClient; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service;


@Service public class UserServiceImp implements IUserService{
    @Autowired private IUserFeignServiceClient userFeignServiceClient; public String findAll() { return "Feign: " + userFeignServiceClient.findAll();
    }
}

package com.cloud.microservice.eurekaclientdemo.FeignClient; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController;

@RestController public class FeignDemoController {
    @Autowired private IUserService userService;

    @RequestMapping(value = "/feigndemo/findAll", method = RequestMethod.GET, produces = {"application/json;charset=UTF-8"}) public String feignDemo() { return userService.findAll();
    }
}