Question

如果我想生成一个线程转储并将其记录在我的应用程序中（用于诊断目的），是否有任何用于生成一个的实用程序，或者我是否一直在将自己拼凑在一起？

Answer 1

这是这个问题的半复制品。看看我的答案：

Generate a Java thread dump without restarting.

这会对您执行kill -QUIT <my-pid>时看到的输出进行近似。不确定与JVisualVM输出匹配多少。

Thread stack dump method is posted on pastebin的完整代码。代码示例在列出的问题中。

Answer 2

您是否按照Determining Current Call Stack (For Diagnostic Purposes)中的建议尝试StackTraceElement[] cause = Thread.currentThread().getStackTrace();。

相关问答：

Answer 3

我目前正在使用此功能。不确定它是否正是你想要的。

import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
public class ThreadDumper
{
    public static String dumpThreads()
    {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);           
        try
        {
            ThreadMXBean bean = ManagementFactory.getThreadMXBean();
            ThreadInfo[] threadInfos = bean.getThreadInfo(bean.getAllThreadIds(), Integer.MAX_VALUE);
            for (int i = 0; i < threadInfos.length; i++)
            {
                ThreadInfo threadInfo = threadInfos[i];
                pw.print(threadInfo);
            }

            pw.println("----------------------------------------");
            pw.println();

            long[] deadlockedIds = bean.findMonitorDeadlockedThreads();
            if(deadlockedIds == null || deadlockedIds.length == 0)
            {
                pw.println("Detected 0 deadlocked threads.");
            }
            else
            {
                pw.println("Detected " + deadlockedIds.length + " deadlocked threads:");
                threadInfos = bean.getThreadInfo(deadlockedIds, 0);
                for (int i = 0; i < threadInfos.length; i++)
                {
                    ThreadInfo threadInfo = threadInfos[i];
                    pw.print(threadInfo);
                }
            }
        }
        catch(Exception e)
        {
            pw.println("----------------------------------------");
            pw.println("Exception occurred while taking thread dump:");
            e.printStackTrace(pw);
            pw.println("----------------------------------------");
        }

        return sw.toString();
    }
}

如何生成类似于从JVisualVM获得的线程转储？

3 个答案: