如何使用OkHttp设置连接超时

Question

我正在使用OkHttp库开发app，我的麻烦是我找不到如何设置连接超时和套接字超时。

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder().url(url).build();

Response response = client.newCall(request).execute();

Answer 1

你只需要这样做

OkHttpClient client = new OkHttpClient();
client.setConnectTimeout(15, TimeUnit.SECONDS); // connect timeout
client.setReadTimeout(15, TimeUnit.SECONDS);    // socket timeout

Request request = new Request.Builder().url(url).build();
Response response = client.newCall(request).execute();

请注意，在setReadTimeout中设置的值是在setSoTimeout Socket类内部的OkHttp中使用的值。

不在Connection上设置任何超时相当于在OkHttpClient或0上设置setConnectTimeout的值，并且将导致根本没有超时。描述可以找到setReadTimeout。

正如@marceloquinta在评论中所提到的，here也可以设置。

从版本2.5.0开始，默认情况下，如@ChristerNordvik所述，读/写/连接超时值设置为10秒。这可以看出setWriteTimeout。

从OkHttp3开始，现在可以通过here这样做

Builder

您还可以查看食谱

client = new OkHttpClient.Builder()
        .connectTimeout(10, TimeUnit.SECONDS)
        .writeTimeout(10, TimeUnit.SECONDS)
        .readTimeout(30, TimeUnit.SECONDS)
        .build();

。

Answer 2

如果要自定义配置，请先使用以下方法创建OKhttpclient，然后在其上添加构建器。

(5, TimeUnit.SECONDS)

Answer 3

您可以设置呼叫超时以涵盖解析DNS，连接，写入请求正文，服务器处理和读取响应正文的整个周期。

private final OkHttpClient client = new OkHttpClient();

// Copy to customize OkHttp for this request.
    OkHttpClient client1 = client.newBuilder()
        .readTimeout(500, TimeUnit.MILLISECONDS)
        .build();
    try (Response response = client1.newCall(request).execute()) {
      System.out.println("Response 1 succeeded: " + response);
    } catch (IOException e) {
      System.out.println("Response 1 failed: " + e);
    }

Answer 4

对于okhttp3，这已经改变了一点。

现在您使用构建器设置时间，而不是设置器，如下所示：

here

更多信息可以在他们的wiki：

OkHttpClient client = new OkHttpClient.Builder()
        .connectTimeout(10, TimeUnit.SECONDS)
        .writeTimeout(10, TimeUnit.SECONDS)
        .readTimeout(30, TimeUnit.SECONDS)
        .build();

中找到

Answer 5

对于Retrofit改造：2.0.0-beta4，代码如下

https://github.com/square/okhttp/blob/master/RECIPES.md#timeouts

Answer 6

对于Retrofit 2.0.0-beta1或beta2，代码如下

OkHttpClient client = new OkHttpClient.Builder()
        .addInterceptor(logging)
        .connectTimeout(30, TimeUnit.SECONDS)
        .readTimeout(30, TimeUnit.SECONDS)
        .writeTimeout(30, TimeUnit.SECONDS)
        .build();

Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("http://api.yourapp.com/")
        .addConverterFactory(GsonConverterFactory.create())
        .client(client)
        .build();

Answer 7

    OkHttpClient client = new OkHttpClient();

    client.setConnectTimeout(30, TimeUnit.SECONDS);
    client.setReadTimeout(30, TimeUnit.SECONDS);
    client.setWriteTimeout(30, TimeUnit.SECONDS);

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://api.yourapp.com/")
            .addConverterFactory(GsonConverterFactory.create())
            .client(client)
            .build();

Answer 8

它现在改变了。用

//add in gradle and sync
compile 'com.squareup.okhttp3:okhttp:3.2.0'
compile 'com.google.code.gson:gson:2.6.2'

import okhttp3.OkHttpClient;
import okhttp3.OkHttpClient.Builder;


Builder b = new Builder();
b.readTimeout(200, TimeUnit.MILLISECONDS);
b.writeTimeout(600, TimeUnit.MILLISECONDS);
// set other properties

OkHttpClient client = b.build();

替换.Builder()

从okhttp：3.9.0开始，代码如下：

.newBuilder()

Answer 9

像这样：

OkHttpClient okHttpClient = new OkHttpClient()
    .newBuilder()
    .connectTimeout(10,TimeUnit.SECONDS)
    .writeTimeout(10,TimeUnit.SECONDS)
    .readTimeout(30,TimeUnit.SECONDS)
    .build();

Answer 10

这对我有用......来自

//New Request
        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
        logging.setLevel(HttpLoggingInterceptor.Level.BASIC);
        final OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(logging)
                .connectTimeout(30, TimeUnit.SECONDS)
                .readTimeout(30, TimeUnit.SECONDS)
                .writeTimeout(30, TimeUnit.SECONDS)
                .build();

https://github.com/square/okhttp/issues/3553

Answer 11

okhttp版本：

OkHttpClient client = new OkHttpClient.Builder()
        .connectTimeout(10, TimeUnit.SECONDS)
        .readTimeout(10, TimeUnit.SECONDS)
        .writeTimeout(10, TimeUnit.SECONDS)
        .retryOnConnectionFailure(false) <-- not necessary but useful!
        .build();

或更高版本

来自okhttp的源代码

3.11.0

/**
 * Sets the default connect timeout for new connections. A value of 0 means no timeout,
 * otherwise values must be between 1 and {@link Integer#MAX_VALUE} when converted to
 * milliseconds.
 *
 * <p>The connectTimeout is applied when connecting a TCP socket to the target host.
 * The default value is 10 seconds.
 */
public Builder connectTimeout(long timeout, TimeUnit unit) {
  connectTimeout = checkDuration("timeout", timeout, unit);
  return this;
}

可以是以下任何值

unit

示例代码

TimeUnit.NANOSECONDS
TimeUnit.MICROSECONDS
TimeUnit.MILLISECONDS
TimeUnit.SECONDS
TimeUnit.MINUTES
TimeUnit.HOURS
TimeUnit.DAYS

Updated

我从版本

OkHttpClient client = new OkHttpClient.Builder()
        .connectTimeout(5000, TimeUnit.MILLISECONDS)/*timeout: 5 seconds*/
        .build();

String url = "https://www.google.com";
Request request = new Request.Builder()
        .url(url)
        .build();

try {
    Response response = client.newCall(request).execute();
} catch (IOException e) {
    e.printStackTrace();
}

添加了新的api到okhttp，你可以像这样设置超时：

3.12.0

注意：这需要API 26+，因此如果您支持旧版Android，请继续使用

OkHttpClient client = new OkHttpClient.Builder()
        .connectTimeout(Duration.ofSeconds(5))/*timeout: 5 seconds*/
        .build();

。