Question

我看到StrictMode失败，我看不出我正在做什么有什么问题。失败的是：

java.lang.Throwable: Explicit termination method 'end' not called
    E/StrictMode(26875):    at dalvik.system.CloseGuard.open(CloseGuard.java:184)
    E/StrictMode(26875):    at java.util.zip.Inflater.<init>(Inflater.java:82)
    E/StrictMode(26875):    at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:96)
    E/StrictMode(26875):    at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:81)
    E/StrictMode(26875):    at libcore.net.http.HttpEngine.initContentStream(HttpEngine.java:528)
    E/StrictMode(26875):    at libcore.net.http.HttpEngine.readResponse(HttpEngine.java:836)
    E/StrictMode(26875):    at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:274)
    E/StrictMode(26875):    at libcore.net.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:486)
    E/StrictMode(26875):    at com.mycompany.MyClass.sendJson(MyClass.java:267)

我配置了StrictMode：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
    StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder()
              .detectLeakedSqlLiteObjects().detectLeakedClosableObjects().penaltyLog()
                    .penaltyDeath().build());
}

代码如下所示：

HttpURLConnection connection = null;
OutputStream outputStream = null;
InputStream in = null;

try {
        connection = (HttpURLConnection)new URL("http://our.server/some/path").openConnection();

        connection.setRequestProperty("Accept", "application/json");
        connection
                .setRequestProperty("Content-Type", "application/json; charset=UTF-8");
        connection.setDoOutput(true);

        outputStream = connection.getOutputStream();

        String content = "{\"some\":\"json data\"}";
        byte bytes[] = content.getBytes("UTF-8");
        outputStream.write(bytes);
        outputStream.flush();

        responseCode = connection.getResponseCode(); // This is line 267 in the stack trace

        if (HttpURLConnection.HTTP_OK == responseCode
                || HttpURLConnection.HTTP_CREATED == responseCode) {

            // do something with a successful response
        }
    }

} catch (IOException e) {
    // report the exception
} finally {
    if (null != connection) {
        connection.disconnect();
    }
    if (null != outputStream) {
        try {
            outputStream.close();
        } catch (IOException e) {
        }
    }
    if (null != in) {
        try {
            in.close();
        } catch (IOException e) {
        }
    }
}

我发现有人抱怨在使用Google AdMob SDK（https://groups.google.com/forum/?fromgroups=#!topic/google-admob-ads-sdk/yVss4ufdPp4）时看到相同的StrictMode失败但到目前为止我找不到任何解决方案。

Answer 1

如果您获得响应流，完全读取并关闭它（即使响应代码不正确），会发生什么情况。
我认为这将调用HttpEngine.release()，从而避免在GzipInputStream稍后完成时出现异常（因为异常是在构造函数中准备但是在finalize()中抛出）

Answer 2

我认为connection.getResponseCode()会打开输入流。因此，您需要检索输入流并将其关闭。

Android StrictMode Throwable：未调用显式终止方法'end'

2 个答案: