SpringCloud Eureka Provider及Consumer的实现

<properties>    <java.version>1.8</java.version>    <spring-cloud.version>Greenwich.SR3</spring-cloud.version>  </properties>  <dependencies>    <dependency>      <groupId>org.springframework.boot</groupId>      <artifactId>spring-boot-starter-web</artifactId>    </dependency>    <dependency>      <groupId>org.springframework.cloud</groupId>      <artifactId>spring-cloud-starter-netflix-eureka-client</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>

@SpringBootApplication@EnableDiscoveryClient // 这个注解加不加都可以，因为Eurekapublic class EurekaProviderApplication {  public static void main(String[] args) {    SpringApplication.run(EurekaProviderApplication.class, args);  }}

@RestControllerpublic class EurekaProviderController {  @GetMapping("/provider")  public String provider(@RequestParam String aaa){    return "eureka-provider-return" + aaa;  }}

@SpringBootApplication  // 另一个发现服务的注解可以不用谢（SpringCloud版本要在Edgware之后）public class EurekaConsumerApplication {  @Bean  @LoadBalanced  RestTemplate restTemplate(){    return new RestTemplate();  }  public static void main(String[] args) {    SpringApplication.run(EurekaConsumerApplication.class, args);  }}

@RestControllerpublic class EurekaConsumerController {  @Autowired  private RestTemplate restTemplate;  @GetMapping("/consumer")  @GetMapping("/consumer")  public String consumer(@RequestParam String aaa){    return restTemplate.getForObject("http://EUREKA-PROVIDER/provider?aaa=" + aaa,String.class );  }}

@Configuration@EnableConfigurationProperties@ConditionalOnClass(EurekaClientConfig.class)@Import(DiscoveryClientOptionalArgsConfiguration.class)@ConditionalOnBean(EurekaDiscoveryClientConfiguration.Marker.class)@ConditionalOnProperty(value = "eureka.client.enabled", matchIfMissing = true)@ConditionalOnDiscoveryEnabled@AutoConfigureBefore({ NoopDiscoveryClientAutoConfiguration.class,   CommonsClientAutoConfiguration.class, ServiceRegistryAutoConfiguration.class })@AutoConfigureAfter(name = {   "org.springframework.cloud.autoconfigure.RefreshAutoConfiguration",   "org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration",   "org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationAutoConfiguration" })public class EurekaClientAutoConfiguration {}