安卓实现一个在okhttp基础上的重试的拦截器,请求到数据后停止拦截的代码
时间: 2024-03-13 16:47:56 浏览: 21
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()) {
// 请求成功,直接返回响应
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);
}
} else {
// 重试次数用完,抛出异常
if (exception != null) {
throw exception;
} else {
throw new IOException("Request failed after " + maxRetryCount + " attempts.");
}
}
}
throw new IllegalStateException("Unreachable code");
}
}
```
在这个拦截器中,当请求成功时,会直接返回响应并停止拦截器的执行,不会再进行重试;当重试次数用完时,如果仍然失败,则抛出异常;否则,会一直重试请求,直到达到最大重试次数或请求成功为止。
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,并在请求成功后停止拦截器的执行了。