SpringBoot开发之采用Feign进行第三方网络请求

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1、在maven项目中添加依赖

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<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-feign</artifactId>
    <version>1.2.2.RELEASE</version>
</dependency>

2、编写接口，放置在service层

这里的decisionEngine.url 是配置在properties中的 是ip地址和端口号
decisionEngine.url=http://10.2.1.148:3333/decision/person 是接口名字

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@FeignClient(url = "${decisionEngine.url}",name="engine")
public interface DecisionEngineService {
　　@RequestMapping(value="/decision/person",method= RequestMethod.POST)
　　public JSONObject getEngineMesasge(@RequestParam("uid") String uid,@RequestParam("productCode") String productCode);

}

3、在Java的启动类上加上@EnableFeignClients

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@EnableFeignClients //参见此处
@EnableDiscoveryClient
@SpringBootApplication
@EnableResourceServer
public class Application   implements CommandLineRunner {
    private static final Logger LOGGER = LoggerFactory.getLogger(Application.class);
    @Autowired
    private AppMetricsExporter appMetricsExporter;

    @Autowired
    private AddMonitorUnitService addMonitorUnitService;

    public static void main(String[] args) {
        new SpringApplicationBuilder(Application.class).web(true).run(args);
    }    
}

4、在代码中调用接口即可

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@Autowired
private DecisionEngineService decisionEngineService ;
// ...
decisionEngineService.getEngineMesasge("uid" ,  "productCode");

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