手把手用Android stdio写OKHTTP java工程d

创建工程

1，在AS中创建普通android工程
2，创建一个module

创建module
选择Java or Kotlin Library
3，引入okhttp库
我这边module取名为“okhttpTest”，找到modulel下的build.gradle，加入依赖：

implementation 'com.squareup.okhttp3:okhttp:4.4.0'

插入依赖

请到https://github.com/square/okhttp查看最新的版本号：

github查询最新版本

4，module运行配置
我们先加入main函数：

package com.example.okhttptest;

import java.io.IOException;

public class OKHttpTest {

    public static void main(String[] args) throws IOException {
        System.out.println("hello");
    }
}

正常情况下，直接执行“Run”就可以执行了。如果有问题，可以手动配置：

打开运行配置界面 运行配置

配置后，就可以执行“Run”了，检查打印是否正常：

检查运行后打印是否正常

OK，目前工程已经正常创建。

编写OKHTTP测试代码

Get / Post测试

package com.example.okhttptest;

import java.io.IOException;

import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public class OKHttpTest {
    public static final MediaType JSON = MediaType.get("application/json; charset=utf-8");

    OkHttpClient client = new OkHttpClient();

    String run(String url) throws IOException {
        Request request = new Request.Builder()
                .url(url)
                .build();

        try (Response response = client.newCall(request).execute()) {
            return response.body().string();
        }
    }

    String post(String url, String json) throws IOException {
        RequestBody body = RequestBody.create(json, JSON);
        Request request = new Request.Builder()
                .url(url)
                .post(body)
                .build();
        try (Response response = client.newCall(request).execute()) {
            return response.body().string();
        }
    }

    String bowlingJson(String player1, String player2) {
        return "{'winCondition':'HIGH_SCORE',"
                + "'name':'Bowling',"
                + "'round':4,"
                + "'lastSaved':1367702411696,"
                + "'dateStarted':1367702378785,"
                + "'players':["
                + "{'name':'" + player1 + "','history':[10,8,6,7,8],'color':-13388315,'total':39},"
                + "{'name':'" + player2 + "','history':[6,10,5,10,10],'color':-48060,'total':41}"
                + "]}";
    }

    public static void main(String[] args) throws IOException {
        OKHttpTest example = new OKHttpTest();
        String responseGet = example.run("https://github.com/square/okhttp/blob/master/README.md");
        System.out.println(responseGet);

        String json = example.bowlingJson("Jesse", "Jake");
        String responsePost = example.post("http://www.roundsapp.com/post", json);
        System.out.println(responsePost);
    }
}

运行一下，我们就可以通过Get / Post获得返回的HTTP源码了。