Feign 使得 Java HTTP 客户端编写更方便。
Feign 灵感来源于 Retrofit, JAXRS-2.0 和 WebSocket,Feign 最初是为了降低统一绑定 Denominator 到 HTTP APIs 的复杂度,不管是否是 Restful 。
基础使用:
interface GitHub { @RequestLine("GET /repos/{owner}/{repo}/contributors") List<Contributor> contributors(@Param("owner") String owner, @Param("repo") String repo); } static class Contributor { String login; int contributions; } public static void main(String... args) { GitHub github = Feign.builder() .decoder(new GsonDecoder()) .target(GitHub.class, "https://api.github.com"); // Fetch and print a list of the contributors to this library. List<Contributor> contributors = github.contributors("netflix", "feign"); for (Contributor contributor : contributors) { System.out.println(contributor.login + " (" + contributor.contributions + ")"); } }