Java 獲得運行時檔案名稱，類名，方法名，行號

標籤：

package com.someorg;public class Logger {    public static void info(String something) {        int lineNo = getCurrentLineNumber();        String methodName = getCurrentMethodName();        String className = getCurrentClassName();        System.out.println(className + "." + methodName + "(" + lineNo + "): " + something);    }    public static int getCurrentLineNumber() {        return Thread.currentThread().getStackTrace()[3].getLineNumber();    }    public static String getCurrentMethodName() {        return Thread.currentThread().getStackTrace()[3].getMethodName();    }    public static String getCurrentClassName() {        return Thread.currentThread().getStackTrace()[3].getClassName();    }}

package com.someorg;public class App {    public static void main(String[] args) {        m1();    }    public static void m1() {        // do some logic here;        Logger.info("Hello 1");        m2();    }    public static void m2() {        // do some logic here;        Logger.info("Hello 2");    }}

 

Java 獲得運行時檔案名稱，類名，方法名，行號