openfeign+retronfit http 访问

一个简单记录

maven 依赖

<dependency>

    <groupId>com.squareup.retrofit2</groupId>

    <artifactId>retrofit</artifactId>

    <version>2.9.0</version>

</dependency>

<dependency>

    <groupId>com.squareup.retrofit2</groupId>

    <artifactId>converter-gson</artifactId>

    <version>2.9.0</version>

</dependency>

<dependency>

    <groupId>io.github.openfeign</groupId>

    <artifactId>feign-core</artifactId>

    <version>11.0</version>

</dependency>

<dependency>

    <groupId>io.github.openfeign</groupId>

    <artifactId>feign-gson</artifactId>

    <version>11.0</version>

</dependency>

openfeign参考代码

private static void openFeign() {

    GitHub github = Feign.builder()

            .decoder(new GsonDecoder())

            .target(GitHub.class, "https://api.github.com");

    List<Contributor> contributors = github.contributors("OpenFeign", "feign");

    for (Contributor contributor : contributors) {

        System.out.println(contributor.login + " (" + contributor.contributions + ")");

    }

}

​

​

package com.dalong;

​

import feign.Param;

import feign.RequestLine;

​

import java.util.List;

​

/**

 *

 * github api

 */

public interface  GitHub {

    /**

     * contributors 获取

     * @param owner

     * @param repo

     * @return

     */

    @RequestLine("GET /repos/{owner}/{repo}/contributors")

    List<Contributor> contributors(@Param("owner") String owner, @Param("repo") String repo);

​

    /**

     * issue 请求获取

     * @param issue

     * @param owner

     * @param repo

     */

    @RequestLine("POST /repos/{owner}/{repo}/issues")

    void createIssue(Issue issue, @Param("owner") String owner, @Param("repo") String repo);

​

}

retrofit2

package com.dalong;

import retrofit2.Call;

import retrofit2.http.Body;

import retrofit2.http.GET;

import retrofit2.http.POST;

import retrofit2.http.Path;

​

import java.util.List;

​

/**

 *

 * github api

 */

public interface GitHub2 {

    /**

     * contributors 获取

     * @param owner

     * @param repo

     * @return

     */

    @GET("/repos/{owner}/{repo}/contributors")

    Call<List<Contributor>> contributors(@Path("owner") String owner, @Path("repo") String repo);

​

    /**

     * issue 请求获取

     * @param issue

     * @param owner

     * @param repo

     */

    @POST("/repos/{owner}/{repo}/issues")

    void createIssue(@Body  Issue issue, @Path("owner") String owner, @Path("repo") String repo);

​

}

​

 private static void retrofit() throws IOException {

        Retrofit retrofit = new Retrofit.Builder()

                .baseUrl("https://api.github.com")

                .addConverterFactory(GsonConverterFactory.create())

                .build();

        // Fetch and print a list of the contributors to this library.

        GitHub2 gitHub2 =  retrofit.create(GitHub2.class);

        Call<List<Contributor>> contributors2 = gitHub2.contributors("OpenFeign", "feign");

        for (Contributor contributor : contributors2.execute().body()) {

            System.out.println("github2");

            System.out.println(contributor.login + " (" + contributor.contributions + ")");

        }

}

参考资料

https://github.com/square/retrofit
https://github.com/OpenFeign/feign
https://mvnrepository.com/artifact/com.squareup.retrofit2
https://mvnrepository.com/artifact/io.github.openfeign