Java中的 LogRecord setSourceMethodName() 方法及示例

Java.util.logging.LogRecord的setSourceMethodName()方法用于设置据称发出日志请求的方法的名称。 logRecord 中用于记录目的的源方法名称必须通过此方法设置。

句法：

public void setSourceMethodName(String sourceMethodName)

参数：此方法接受sourceMethodName作为参数，即源方法名称。它也可以为空。

Return ：此方法不返回任何内容。

下面的程序说明了 setSourceMethodName() 方法：
方案一：

// Java program to illustrate
// setSourceMethodName() 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 source method
        logRecord
            .setSourceMethodName(
                "MyFirstSourceMethod");
  
        // print the method name
        System.out.println(
            "Source method Name = "
            + logRecord.getSourceMethodName());
    }
}

输出：

Source method Name = MyFirstSourceMethod

方案二：

// Java program to illustrate
// setSourceMethodName() 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 a method from ArrayList class
        // as source method
        logRecord.setSourceMethodName(
            ArrayList
                .class
                .getMethods()[0]
                .getName());
  
        // print the method name
        System.out.println(
            "Source method Name = "
            + logRecord.getSourceMethodName());
  
        // now set null as method name
        logRecord.setSourceMethodName(null);
  
        // print the method name
        System.out.println(
            "Now new Source method Name = "
            + logRecord.getSourceMethodName());
    }
}

输出：

Source method Name = add
Now new Source method Name = null

参考： https: Java Java.lang.String)