Java 中的 LogRecord setSourceClassName()方法，带示例

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

Java . util . logging . log record的 setSourceClassName() 方法用于设置据称发出日志请求的类的名称。用于日志记录目的的源类名必须通过这个方法来设置。

语法:

public void setSourceClassName(String sourceClassName)

参数:该方法接受源类名作为参数，即源类名。它也可以为空。

返回:此方法不返回任何内容。

下面的程序说明了 setSourceClassName()方法: 程序 1:

// Java program to illustrate
// setSourceClassName() 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 String class as source class
        logRecord.setSourceClassName(
            String.class.getName());

        // print the class name
        System.out.println(
            "Source class Name = "
            + logRecord.getSourceClassName());
    }
}

Output:

Source class Name = java.lang.String

程序 2:

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

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

public class GFG {

    public static void main(String[] args)
    {

        // Create LogRecord object
        LogRecord logRecord
            = new LogRecord(Level.INFO,
                            "GFG Logger");

        // set ArrayList class as source class
        logRecord.setSourceClassName(
            ArrayList
                .class
                .getName());

        // print the class name
        System.out.println(
            "Source class Name = "
            + logRecord.getSourceClassName());

        // now set null as class name
        logRecord.setSourceClassName(null);

        // print the class name
        System.out.println(
            "Now new Source class Name = "
            + logRecord.getSourceClassName());
    }
}

Output:

Source class Name = java.util.ArrayList
Now new Source class Name = null

参考文献:T2

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