致命异常:OkHttp分派器 [英] FATAL EXCEPTION: OkHttp Dispatcher

问题描述

我在我的android应用中使用OkHttp库向天气API发出网络请求.我已经实现了我的代码，并且在执行请求时遇到了致命错误.

I'm using the OkHttp library in my android app to make web requests to a weather API. I've already implemented my code and I'm getting a FATAL EXCEPTION when doing the request.

我也已经在清单中添加了INTERNET权限.

I've already added INTERNET permissions in my manifest too.

MainActivity.java:

MainActivity.java:

private CurrentWeather currentWeather;

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final ActivityMainBinding binding = DataBindingUtil.setContentView(MainActivity.this, R.layout.activity_main);

        String apiKey = "xxx";
        double latitude = 37.8267;
        double longitude = -122.4233;
        String forecastURL = String.format("https://api.darksky.net/forecast/%s/%f,%f", apiKey, latitude, longitude);

        if (isNetworkAvailable()) {
            OkHttpClient client = new OkHttpClient();

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

            Call call = client.newCall(request);
            call.enqueue(new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {

                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    try {
                        Log.v(TAG, response.body().string());
                        String jsonData = response.body().string();
                        if (response.isSuccessful()) {
                            currentWeather = getCurrentDetails(jsonData);
                        }

                    } catch (IOException e) {
                        Log.e(TAG, e.getLocalizedMessage());
                    } catch (JSONException e) {
                        Log.e(TAG, e.getLocalizedMessage());
                    }
                }
            });
        }
        Log.d(TAG, "Main UI code is running");
    }

    private CurrentWeather getCurrentDetails(String jsonData) throws JSONException {

        JSONObject forecast = new JSONObject(jsonData);
        String timezone = forecast.getString("timezone");

        JSONObject currently = forecast.getJSONObject("currently");

        String icon = currently.getString("icon");
        String locationLabel = "Alcatraz Island";
        String summary = currently.getString("summary");
        long time = currently.getLong("time");
        double humidity = currently.getDouble("humidity");
        double precipProbability = currently.getDouble("precipProbability");
        double temperature = currently.getDouble("temperature");

        return new CurrentWeather(locationLabel, icon, time, temperature, humidity, precipProbability, summary, timezone);
    }

等级:

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.squareup.okhttp3:okhttp:3.12.0'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

然后，这是我遇到的例外情况:

Then, here's the exception I'm getting:

2018-12-04 20:55:49.969 3314-3330/com.test.starmie E/AndroidRuntime: FATAL EXCEPTION: OkHttp Dispatcher
    Process: com.test.starmie, PID: 3314
    java.lang.IllegalStateException: closed
        at okio.RealBufferedSource.rangeEquals(RealBufferedSource.java:407)
        at okio.RealBufferedSource.rangeEquals(RealBufferedSource.java:401)
        at okhttp3.internal.Util.bomAwareCharset(Util.java:471)
        at okhttp3.ResponseBody.string(ResponseBody.java:175)
        at com.test.starmie.MainActivity$1.onResponse(MainActivity.java:66)
        at okhttp3.RealCall$AsyncCall.execute(RealCall.java:206)
        at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:761)

我现在不知道该怎么办.我已经阅读了一遍，发现了一些有关该主题的帖子.根据我的收集，必须在runOnUiThread()块中进行UI更改.但是我没有在代码中进行任何UI更改，但仍然出现异常.

I don't know what to do at this point. I've read around and found a few posts regarding this topic. From what I've gathered, UI changes must be made in the runOnUiThread() block. But I'm not making any UI changes here in my code and I still get the exception.

我也已经尝试将JSON解析代码放入runOnUiThread()中，并获得相同的致命异常结果.任何人有任何想法吗?

I've also already tried putting my JSON parsing code in the runOnUiThread() and got the same FATAL EXCEPTION result. Anyone got any ideas?

推荐答案

Response主体只能使用一次. 你两次做到

Response body can be consumed only once. You make it twice

Log.v(TAG, response.body().string());
String jsonData = response.body().string();

文档

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