Java 中的 LogRecord getThreadID()方法，带示例

原文:https://www . geesforgeks . org/log record-getthreadid-method-in-Java-with-examples/

Java . lang . reflect . log record的 getThreadID() 方法用于获取消息来源线程的标识符。这个方法有助于识别生成日志消息的线程。

语法:

public int getThreadID()

参数:此方法不接受任何内容。

返回:此方法返回螺纹号。

以下程序说明 getThreadID()方法: 程序 1:

// Java program to illustrate
// getThreadID() method

import java.util.logging.Level;
import java.util.logging.LogRecord;

public class GFG {

    public static void main(String[] args)
    {

        // Create LogRecord object
        LogRecord logRecord
            = new LogRecord(Level.SEVERE,
                            "Hello Logger");

        // get Thread ID
        int id = logRecord.getThreadID();

        // print
        System.out.println(
            "Thread ID = "
            + id);
    }
}

Output:

Thread ID = 1

程序 2:

// Java program to illustrate
// getThreadID() method

import java.util.logging.Level;
import java.util.logging.LogRecord;

public class GFG {

    public static void main(String[] args)
    {
        // start the Thread
        Thread thread1 = new Thread1();
        thread1.start();

        // Create LogRecord object
        LogRecord logRecord
            = new LogRecord(Level.SEVERE,
                            "Hello Logger");
        logRecord.setThreadID((int)thread1
                                  .getId());

        // get Thread ID
        int id = logRecord.getThreadID();

        // print
        System.out.println(
            "Thread ID = "
            + id);
    }
}

class Thread1 extends Thread {
    public void run()
    {
        System.out.println("Thread is running...");
    }
}

Output:

Thread is running...
Thread ID = 11

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/util/logging/logrecord . html # getThreadID()

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