feign client 的简单使用(1)

依赖:

<properties>
<java.version>1.8</java.version>
<feign-core.version>10.2.0</feign-core.version>
<feign-form.version>2.1.0</feign-form.version>
</properties>

        <dependency>
            <groupId>io.github.openfeign</groupId>
            <artifactId>feign-core</artifactId>
            <version>${feign-core.version}</version>
        </dependency>
        <dependency>
            <groupId>io.github.openfeign</groupId>
            <artifactId>feign-jackson</artifactId>
            <version>${feign-core.version}</version>
        </dependency>
        <dependency>
            <groupId>io.github.openfeign.form</groupId>
            <artifactId>feign-form</artifactId>
            <version>${feign-form.version}</version>
        </dependency>
        <dependency>
            <groupId>io.github.openfeign.form</groupId>
            <artifactId>feign-form-spring</artifactId>
            <version>${feign-form.version}</version>
        </dependency>

或者直接使用依赖：

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

配置:

@Configuration
@ComponentScan(basePackages = "com.icil.elsa.subscribe.milestone.command.web.job")
public class XxlJobConfig {

/*    @Autowired
    private ObjectFactory<HttpMessageConverters> messageConverters*/;

    private Logger logger = LoggerFactory.getLogger(XxlJobConfig.class);

    @Value("${xxl.job.admin.addresses}")
    private String adminAddresses;// http:127.0.0.1:8888
//define feign client
    @Bean
    public XxService xxService() {
        return Feign.builder()
               // .encoder(new FormEncoder(new JacksonEncoder()))   //如果有表单提交，加上表单编解码
               // .decoder(new JacksonDecoder())　　　　　　　　　　　　//
                .target(XxlJobService.class, adminAddresses);
    }
}

XxService:

import com.alibaba.fastjson.JSONObject;
import feign.Headers;
import feign.Param;
import feign.RequestLine;

import java.util.Map;

public interface XxlJobService {

    @RequestLine("GET /ufl-job-admin/jobinfo/pageList?jobGroup={jobGroup}")
    JSONObject pageList(@Param(value = "jobGroup") int jobGroup);

    @RequestLine("POST /ufl-job-admin/jobinfo/add")
    @Headers("Content-Type: application/x-www-form-urlencoded")
    JSONObject add(Map<String, ?> form);

    @RequestLine("GET /ufl-job-admin/jobinfo/start?id={id}")
    JSONObject start(@Param(value = "id") int id);

    @RequestLine("GET /ufl-job-admin/jobinfo/stop?id={id}")
    JSONObject stop(@Param(value = "id") int id);
}