OkHttp怎樣實(shí)現(xiàn)請(qǐng)求的重試機(jī)制

小樊
586
2024-06-18 15:03:59
欄目: 編程語言

OkHttp并沒有內(nèi)置的請(qǐng)求重試機(jī)制,但我們可以通過自定義Interceptor來實(shí)現(xiàn)請(qǐng)求的重試機(jī)制。

以下是一個(gè)簡(jiǎn)單的示例代碼:

public class RetryInterceptor implements Interceptor {

    private int maxRetry;
    private int retryCount = 0;

    public RetryInterceptor(int maxRetry) {
        this.maxRetry = maxRetry;
    }

    @Override
    public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();
        Response response = chain.proceed(request);

        while (!response.isSuccessful() && retryCount < maxRetry) {
            retryCount++;
            response = chain.proceed(request);
        }

        return response;
    }
}

在使用OkHttp時(shí),我們可以創(chuàng)建一個(gè)OkHttpClient并添加上述的RetryInterceptor:

OkHttpClient client = new OkHttpClient.Builder()
        .addInterceptor(new RetryInterceptor(3))
        .build();

這樣設(shè)置后,每次請(qǐng)求失敗時(shí),RetryInterceptor會(huì)嘗試重新發(fā)起請(qǐng)求,最多重試3次。這樣就實(shí)現(xiàn)了簡(jiǎn)單的請(qǐng)求重試機(jī)制。

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