springcloud-声明式调用服务Feign

springcloud项目例子：链接：https://pan.baidu.com/s/1O1PKrdvrq5c8sQUb7dQ5Pg 密码：ynir

作用：

　　基于Netflix Feign整合了Ribbon和Hystrix，Spring Cloud Feign对RestTemplate进行了进一步的封装，简化了我们的封装操作

一：创建Feign应用

　　1.pom:依赖主要是spring-cloud-starter-eureka和spring-cloud-starter-feign

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.7.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
    <spring-cloud.version>Dalston.SR3</spring-cloud.version>
</properties>
<dependencies>
    <!-- 其他依赖 -->
    <!-- 自己添加的依赖 -->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-feign</artifactId>
    </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>

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