在 Android (Java) 中如何打印出完整的堆栈跟踪?如果我的应用程序因 nullPointerException 或其他原因而崩溃,它会打印出(几乎)完整的堆栈跟踪,如下所示:
java.io.IOException: Attempted read from closed stream.
com.android.music.sync.common.SoftSyncException: java.io.IOException: Attempted read from closed stream.
at com.android.music.sync.google.MusicSyncAdapter.getChangesFromServerAsDom(MusicSyncAdapter.java:545)
at com.android.music.sync.google.MusicSyncAdapter.fetchDataFromServer(MusicSyncAdapter.java:488)
at com.android.music.sync.common.AbstractSyncAdapter.download(AbstractSyncAdapter.java:417)
at com.android.music.sync.common.AbstractSyncAdapter.innerPerformSync(AbstractSyncAdapter.java:313)
at com.android.music.sync.common.AbstractSyncAdapter.onPerformLoggedSync(AbstractSyncAdapter.java:243)
at com.google.android.common.LoggingThreadedSyncAdapter.onPerformSync(LoggingThreadedSyncAdapter.java:33)
at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:164)
Caused by: java.io.IOException: Attempted read from closed stream.
at org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:148)
at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:159)
at java.util.zip.GZIPInputStream.readFully(GZIPInputStream.java:212)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:81)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:64)
at android.net.http.AndroidHttpClient.getUngzippedContent(AndroidHttpClient.java:218)
at com.android.music.sync.api.MusicApiClientImpl.createAndExecuteMethod(MusicApiClientImpl.java:312)
at com.android.music.sync.api.MusicApiClientImpl.getItems(MusicApiClientImpl.java:588)
at com.android.music.sync.api.MusicApiClientImpl.getTracks(MusicApiClientImpl.java:638)
at com.android.music.sync.google.MusicSyncAdapter.getChangesFromServerAsDom(MusicSyncAdapter.java:512)
... 6 more
但是有时,出于调试目的,我想从我在代码中的位置记录完整的堆栈跟踪。我想我可以这样做:
StackTraceElement trace = new Exception().getStackTrace();
Log.d("myapp", trace.toString());
但这只是打印出指向对象的指针……我是否必须遍历所有堆栈跟踪元素才能打印出来?或者有什么简单的方法可以全部打印出来吗?
原文由 Jake Wilson 发布,翻译遵循 CC BY-SA 4.0 许可协议
覆盖所有带有
(String tag, String msg, Throwable tr)
签名的 日志方法。将异常作为 第三个 参数传递应该会为您提供 logcat 中的完整堆栈跟踪。