安卓实现一个在okhttp基础上的重试的拦截器
时间: 2024-03-13 10:47:53 浏览: 24
好的,针对你的问题,我可以给出以下的基于 OkHttp 的重试拦截器实现:
```java
public class RetryInterceptor implements Interceptor {
private final int maxRetryCount;
private final long retryInterval;
public RetryInterceptor(int maxRetryCount, long retryInterval) {
this.maxRetryCount = maxRetryCount;
this.retryInterval = retryInterval;
}
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
Response response = null;
IOException exception = null;
int tryCount = 0;
while (tryCount <= maxRetryCount) {
try {
response = chain.proceed(request);
if (response.isSuccessful()) {
return response;
}
} catch (IOException e) {
exception = e;
}
tryCount++;
if (tryCount <= maxRetryCount) {
try {
Thread.sleep(retryInterval);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new RuntimeException(e);
}
}
}
if (exception != null) {
throw exception;
}
throw new IOException("Request failed after " + maxRetryCount + " attempts.");
}
}
```
在这个拦截器中,我们可以通过传入最大重试次数和重试间隔时间来配置拦截器。当请求失败时,会在一定时间后重新尝试请求,直到达到最大重试次数或请求成功为止。如果最大重试次数用完后仍然失败,则抛出异常。
使用这个拦截器需要在 OkHttpClient 中添加:
```java
OkHttpClient client = new OkHttpClient.Builder()
.addInterceptor(new RetryInterceptor(3, 1000))
.build();
```
这样就可以在 OkHttp 的请求中添加重试功能了。