14

我看到 StrictMode 失败，我看不出我正在做的事情有什么问题。失败是：

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)

我配置严格模式：

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）时看到同样的 StrictMode 失败，但我没有到目前为止能够找到任何解决方案。

4

2 回答 2

6

如果您获得响应流，完全阅读并关闭它（即使响应代码不正确），会发生什么。
我认为这将调用HttpEngine.release()，因此在GzipInputStream稍后完成时避免异常（因为异常是在构造函数中准备的但被抛出finalize()）

于 2013-04-12T15:08:19.070 回答
3

我认为connection.getResponseCode()打开一个输入流。因此，您将需要检索输入流并将其关闭。

于 2016-03-07T14:48:12.617 回答