将Throwable.getStackTrace()的结果转换为描述堆栈跟踪的字符串最简单的方法是什么?
当前回答
如果你是为Android开发的,一个更简单的方法是使用这个:
import android.util.Log;
String stackTrace = Log.getStackTraceString(exception);
格式与getStacktrace相同,例如。
09-24 16:09:07.042:I/System.out(4844):java.lang.NullPointerException09-24 16:09:07.042:I/System.out(4844):在com.temp.ttscancel.MainActivity.onCreate(MainActivity.java:43)09-24 16:09:07.042:I/System.out(4844):在android.app.Activity.performCreate(Activity.java:5248)09-24 16:09:07.043:I/System.out(4844):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)09-24 16:09:07.043:I/System.out(4844):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2162)09-24 16:09:07.043:I/System.out(4844):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2257)09-24 16:09:07.043:I/System.out(4844):在android.app.ActivityThread.access$800(ActivityThread.java:139)09-24 16:09:07.043:I/System.out(4844):在android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)09-24 16:09:07.043:I/System.out(4844):在android.os.Handler.dispatchMessage(Handler.java:102)09-24 16:09:07.043:I/System.out(4844):在android.os.Looper.lop(Looper.java:136)09-24 16:09:07.044:I/System.out(4844):在android.app.ActivityThread.main(ActivityThread.java:5097)09-24 16:09:07.044:I/System.out(4844):在java.lang.reflect.Method.invokeNative(本机方法)09-24 16:09:07.044:I/System.out(4844):在java.lang.reflect.Method.invoke(Method.java:515)09-24 16:09:07.044:I/System.out(4844):在com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)09-24 16:09:07.044:I/System.out(4844):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
其他回答
使用Throwable.printStackTrace(PrintWriter pw)将堆栈跟踪发送到适当的编写器。
import java.io.StringWriter;
import java.io.PrintWriter;
// ...
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
String sStackTrace = sw.toString(); // stack trace as a string
System.out.println(sStackTrace);
警告:不包括原因(通常是有用的位!)
public String stackTraceToString(Throwable e) {
StringBuilder sb = new StringBuilder();
for (StackTraceElement element : e.getStackTrace()) {
sb.append(element.toString());
sb.append("\n");
}
return sb.toString();
}
如果你不想使用外部库,而且你不是为Android开发的,你可以创建这样的“扩展”方法:
public static String getStackTraceString(Throwable e) {
return getStackTraceString(e, "");
}
private static String getStackTraceString(Throwable e, String indent) {
StringBuilder sb = new StringBuilder();
sb.append(e.toString());
sb.append("\n");
StackTraceElement[] stack = e.getStackTrace();
if (stack != null) {
for (StackTraceElement stackTraceElement : stack) {
sb.append(indent);
sb.append("\tat ");
sb.append(stackTraceElement.toString());
sb.append("\n");
}
}
Throwable[] suppressedExceptions = e.getSuppressed();
// Print suppressed exceptions indented one level deeper.
if (suppressedExceptions != null) {
for (Throwable throwable : suppressedExceptions) {
sb.append(indent);
sb.append("\tSuppressed: ");
sb.append(getStackTraceString(throwable, indent + "\t"));
}
}
Throwable cause = e.getCause();
if (cause != null) {
sb.append(indent);
sb.append("Caused by: ");
sb.append(getStackTraceString(cause, indent));
}
return sb.toString();
}
Arrays.toString(thrown.getStackTrace())
是将结果转换为字符串的最简单方法我在程序中使用这个来打印堆栈跟踪
LOGGER.log(Level.SEVERE, "Query Builder Issue Stack Trace : {0} ,Message : {1} objid {2}", new Object[]{Arrays.toString(e.getStackTrace()), e.getMessage(),objId});
选项很少
StringWriter sw=新StringWriter();e.printStackTrace(新的PrintWriter(sw));字符串异常AsString=sw.toString();使用Google Guava libString stackTrace=Throwables.getStackTraceAsString(myException);org.apache.commons.lang.exception.ExceptionUtils.getStackTrace(可丢弃)
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