Java 中的 LogRecord setLevel()方法,带示例

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

Java . util . logging . log recordsetLevel() 方法用于设置日志消息的级别,例如级别。此日志记录对象的信息

语法:

public void setLevel(Level level)

参数:该方法接受级别,即日志消息级别。

返回:此方法不返回任何内容。

下面的程序说明了 setLevel()方法: 程序 1:

// Java program to illustrate setLevel() method

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

import java.util.logging.*;

public class GFG {

    public static void main(String[] args)
    {

        // Create LogRecord object
        LogRecord logRecord = new LogRecord(
            Level.parse("800"),
            "Hi Logger");

        System.out.println(
            "Previous Level: "
            + logRecord.getLevel().getName());

        // set level of the LogRecord
        logRecord.setLevel(Level.FINEST);

        // print result
        System.out.println(
            "New Level: "
            + logRecord.getLevel().getName());
    }
}

Output:

Previous Level: INFO
New Level: FINEST

程序 2:

// Java program to illustrate setLevel() 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.parse("400"),
            "GFG Logger");

        System.out.println(
            "Previous Level: "
            + logRecord.getLevel().getName());

        // set level of the LogRecord
        logRecord.setLevel(Level.WARNING);

        // print result
        System.out.println(
            "New Level: "
            + logRecord.getLevel().getName());
    }
}

Output:

Previous Level: FINER
New Level: WARNING

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