Java 中的 LogRecord setThreadID()方法，带示例

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

Java . util . logging . log record的 setThreadID() 方法用于设置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 void setThreadID(int threadID)

参数:该方法接受线程号，该线程号为整数类型的线程号。

返回:此方法不返回任何内容。

以下程序说明 setThreadID()方法: 程序 1:

// Java program to illustrate
// setThreadID() 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");

        // set Thread ID
        logRecord.setThreadID(53677);

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

Output:

Thread ID = 53677

程序 2:

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

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

public class GFG {

    public static void main(String[] args)
    {

        // start the Thread
        Thread1 thread1 = new Thread1();
        thread1.start();

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

        // set Thread ID
        logRecord.setThreadID((int)thread1
                                  .getId());

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

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

Output:

Thread is running...
Thread ID = 8

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

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