不能使用OKHttp的`FormBody.Builder`

Question

我想在Android上使用OKHttp做一个帖子请求。我看了几个例子，这就是我构建的内容

OkHttpClient client = new OkHttpClient();

String url = "http://127.0.0.1:8080/test";

RequestBody body = new FormBody.Builder()
        .add("access_token", "test")
        .add("name", "David")
        .build();

但Builer在Android工作室中是红色的，如果我将鼠标悬停在它上面，它会说“无法解析符号'Builder'”

以下是我的进口

import android.content.Context;
import android.util.Log;

import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.FirebaseInstanceIdService;
import com.squareup.okhttp.Callback;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;

import java.io.IOException;

我的依赖

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'com.squareup.okhttp3:okhttp:3.10.0'


    compile 'com.google.firebase:firebase-messaging:11.8.0'
    compile 'com.klinkerapps:android-smsmms:4.3.0'
}

Answer 1

请更新您的导入。

用这个

import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.RequestBody;