Java：retrofit2發(fā)送http網(wǎng)絡(luò)請(qǐng)求

文檔：https://square.github.io/retrofit/

Github: https://github.com/square/retrofit

使用Python Flask提供簡易的api測(cè)試服務(wù)

# -*- coding: utf-8 -*- import random from flask import Flask, Request, jsonify app = Flask(__name__) @app.route("/get") def get(): """通過get方式傳遞查詢參數(shù)""" name = Request.args.get("name") age = random.randint(10, 30) data = { "name": name, "age": age, } return jsonify(data) @app.route("/post", methods=['POST']) def post(): """通過post方式提交json數(shù)據(jù)""" name = request.json.get("name") age = random.randint(10, 30) data = { "name": name, "age": age, } return jsonify(data) if __name__ == '__main__': app.run(debug=True)

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依賴

com.squareup.retrofit2 retrofit 2.9.0 com.squareup.retrofit2 converter-gson 2.0.0-beta3 junit junit 4.13 test

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返回的實(shí)體對(duì)象

package com.demo.http; public class Person { private String name; private Integer age; public String getName() { return name; } public void setName(String name) { this.name = name; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } @Override public String toString() { return "Person{" + "name='" + name + '\'' + ", age=" + age + '}'; } }

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請(qǐng)求接口

package com.demo.http; import okhttp3.RequestBody; import retrofit2.Call; import retrofit2.http.Body; import retrofit2.http.GET; import retrofit2.http.POST; import retrofit2.http.Query; public interface ApiService { @GET("/get") Call getPerson(@Query("name") String name); @POST("/post") Call postPerson(@Body RequestBody body); }

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測(cè)試代碼

package com.demo.http; import com.google.gson.Gson; import okhttp3.MediaType; import okhttp3.RequestBody; import org.junit.BeforeClass; import org.junit.Test; import retrofit2.Call; import retrofit2.GsonConverterFactory; import retrofit2.Response; import retrofit2.Retrofit; import java.io.IOException; import java.util.HashMap; import java.util.Map; public class RequestTest { // 請(qǐng)求地址 private static final String BASE_URL = "http://127.0.0.1:5000/"; // json private static final MediaType JSON = MediaType.get("application/json; charset=utf-8"); private static Retrofit retrofit; @BeforeClass public static void setUp() { retrofit = new Retrofit.Builder() .baseUrl(BASE_URL) // 類型轉(zhuǎn)換 Could not locate ResponseBody converter for class .addConverterFactory(GsonConverterFactory.create()) .build(); } /** * GET 測(cè)試 * * @throws IOException */ @Test public void testGet() throws IOException { ApiService request = retrofit.create(ApiService.class); Call call = request.getPerson("Tom"); // Person person = call.execute(); // 同步請(qǐng)求 Response response = call.execute(); Person person = response.body(); System.out.println(person); // Person{name='Tom', age=10} } /** * POST json 測(cè)試 * * @throws IOException */ @Test public void testPost() throws IOException { ApiService request = retrofit.create(ApiService.class); // body參數(shù) Map map = new HashMap<>(); map.put("name", "Jack"); Gson gson = new Gson(); String body = gson.toJson(map); System.out.println(body); RequestBody requestBody = RequestBody.create(body, JSON); Call call = request.postPerson(requestBody); // 同步執(zhí)行 Response response = call.execute(); Person person = response.body(); System.out.println(person); // Person{name='Tom', age=24} } }

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參考

這是一份很詳細(xì)的 Retrofit 2.0 使用教程（含實(shí)例講解）

HTTP Java 網(wǎng)絡(luò)

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版權(quán)聲明：本文內(nèi)容由網(wǎng)絡(luò)用戶投稿，版權(quán)歸原作者所有，本站不擁有其著作權(quán)，亦不承擔(dān)相應(yīng)法律責(zé)任。如果您發(fā)現(xiàn)本站中有涉嫌抄襲或描述失實(shí)的內(nèi)容，請(qǐng)聯(lián)系我們jiasou666@gmail.com 處理，核實(shí)后本網(wǎng)站將在24小時(shí)內(nèi)刪除侵權(quán)內(nèi)容。