java - 当我尝试记录网络响应时，OKHttp 抛出非法状态异常

Question

我在我的 OkHttp 客户端上放置了以下拦截器:

httpClient.addInterceptor(new Interceptor() {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Response response = chain.proceed(chain.request());
        Log.d("Response", response.body().string());
        return response;
    }
    });

但是，这在 Retrofit 2 中表现不佳。似乎您只能从响应中读取一次流，这可能是导致异常的原因。我在想改造正在尝试解析日志已经解析的流。那么我该如何得到回应呢？我目前正在尝试调试一个非常讨厌和奇怪的格式错误的 json 异常。

这是异常堆栈跟踪:

07 - 28 10: 58: 21.575 22401 - 22529 / REDACTED E / AndroidRuntime: FATAL EXCEPTION: OkHttp Dispatcher
    Process: REDACTED, PID: 22401
    java.lang.IllegalStateException: closed
    at okhttp3.internal.http.Http1xStream$FixedLengthSource.read(Http1xStream.java: 378)
    at okio.Buffer.writeAll(Buffer.java: 956)
    at okio.RealBufferedSource.readByteArray(RealBufferedSource.java: 92)
    at okhttp3.ResponseBody.bytes(ResponseBody.java: 83)
    at okhttp3.ResponseBody.string(ResponseBody.java: 109)
    at REDACTED.ServiceGenerator$2.intercept(ServiceGenerator.java: 90)
    at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java: 187)
    at REDACTED.ServiceGenerator$2.intercept(ServiceGenerator.java: 89)
    at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java: 187)
    at REDACTED.ServiceGenerator$2.intercept(ServiceGenerator.java: 89)
    at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java: 187)
    at REDACTED.ServiceGenerator$2.intercept(ServiceGenerator.java: 89)
    at okhttp3.RealCall$ApplicationInterceptorChain.proceed(RealCall.java: 187)
    at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java: 160)
    at okhttp3.RealCall.access$100(RealCall.java: 30)
    at okhttp3.RealCall$AsyncCall.execute(RealCall.java: 127)
    at okhttp3.internal.NamedRunnable.run(NamedRunnable.java: 32)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java: 1112)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java: 587)
    at java.lang.Thread.run(Thread.java: 841)

我看到堆栈中有多个拦截器，但我只显式添加了一个，即引发异常的 on。

Answer 1

您正在使用拦截器中的响应正文，因此您将要创建一个新响应:

@Override public Response intercept(Chain chain) throws IOException {
  Response response = chain.proceed(chain.request());
  ResponseBody body = response.body();
  String bodyString = body.string();
  MediaType contentType = body.contentType();
  Log.d("Response", bodyString);
  return response.newBuilder().body(ResponseBody.create(contentType, bodyString)).build();
}

您可能还想查看 OkHttp 存储库中的日志拦截器:https://github.com/square/okhttp/tree/master/okhttp-logging-interceptor