Android使用okhttp通信的方法

更新時(shí)間：2025年04月26日 09:06:13 作者：劉宏締的架構(gòu)森林

這篇文章主要介紹了Android:使用okhttp通信的方法,本文給大家介紹的非常詳細(xì),對(duì)大家的學(xué)習(xí)或工作具有一定的參考借鑒價(jià)值,需要的朋友參考下吧

一，安裝第三方庫:

1,庫地址:

https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp

2,安裝

在build.gradle的dependencies中增加一行:

implementation 'com.squareup.okhttp3:okhttp:4.12.0'

如下:

dependencies {
    implementation libs.appcompat
    implementation libs.material
    implementation libs.activity
    implementation libs.constraintlayout
    testImplementation libs.junit
    androidTestImplementation libs.ext.junit
    androidTestImplementation libs.espresso.core
    implementation 'com.squareup.okhttp3:okhttp:4.12.0'
}

然后點(diǎn)擊 sync now

二，配置權(quán)限:

在AndroidManifest.xml中添加權(quán)限:

<uses-permission android:name="android.permission.INTERNET" />

否則會(huì)報(bào)以下錯(cuò)誤:

java.lang.SecurityException: Permission denied (missing INTERNET permission?)

三，代碼：

package com.example.okdemo1;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import androidx.activity.EdgeToEdge;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });
        //給按鈕增加點(diǎn)擊事件
        Button myButton = findViewById(R.id.apibutton);
        myButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 處理點(diǎn)擊事件
                doGetData();
             }
        });
    }
    //以get方式訪問互聯(lián)網(wǎng)上的頁面，并返回?cái)?shù)據(jù)
    private void doGetData() {
        Toast.makeText(MainActivity.this, "按鈕被點(diǎn)擊了！", Toast.LENGTH_LONG).show();
        //1.創(chuàng)建HttpClient對(duì)象
        OkHttpClient okHttpClient = new OkHttpClient();
        //2.獲取request對(duì)象
        Request.Builder builder = new Request.Builder().url("https://www.bilibili.com/");
        Request request = builder.build();
        //3.異步請(qǐng)求發(fā)起
        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(@NonNull Call call, @NonNull IOException e) {
            }
            @Override
            public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
                try {
                    String result = response.body().string();
                    //如果需要更新主線程的 UI 如果使用 rxjava 以及 retrofit 就不用這樣處理了
                    System.out.println("網(wǎng)絡(luò)請(qǐng)求返回結(jié)果:");
                    System.out.println(result);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        });
    }
}