的Java / Android的 - 如何打印出一个完整的堆栈跟踪？ [英] Java / Android - How to print out a full stack trace?

问题描述

在安卓（JAVA）我怎么打印出完整的堆栈跟踪？如果从NullPointerException异常或东西我的应用程序崩溃，它打印出（几乎）完整的堆栈跟踪，像这样：

In Android (Java) how do I print out a full stack trace? If my application crashes from nullPointerException or something, it prints out a (almost) full stack trace like so:

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

不过有时候，出于调试的目的，我要记录在那里我在code一个完整的堆栈跟踪。我想我可以做到这一点：

However sometimes, for debugging purposes, I want to log a full stack trace from where I am in the code. I figured I could just do this:

StackTraceElement trace = new Exception().getStackTrace();
Log.d("myapp", trace.toString());

但是，这只是打印出来的指向对象......我必须通过所有的堆栈跟踪元素迭代打印出来？或者是有一个简单的方法来打印这一切？

But this just prints out the pointer to the object... Do I have to iterate through all the stack trace elements to print them out? Or is there a simple method to print it all out?

推荐答案

还有所有的日志方法的重写与（字符串标记，弦乐味精，可抛出TR）签名。

传递一个例外，因为在第三参数应该给你完整的堆栈跟踪在logcat中。

Passing an exception as the third parameter should give you the full stacktrace in logcat.

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