1 带分割线版

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * W SKH 的输出工具类
 */
public class LogUtil {
    

    private SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd,HH:mm:ss.SSS");
    private String line = "------------------------------------------------------------------------------------------------------------------------------------------------------";

    public void common(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Info-[" + simpleDateFormat.format(new Date()) + "]:" + line + "\n" + message;
            System.out.format("\033[1;29m","utf-8");
            System.out.println(str);
            after();
        }
    }

    public void info(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Info-[" + simpleDateFormat.format(new Date()) + "]:" + line + "\n" + message;
            System.out.format("\033[1;34m");
            System.out.println(str);
            after();
        }
    }

    public void error(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Error-[" + simpleDateFormat.format(new Date()) + "]:" + line + "\n" + message;
            System.out.format("\033[1;31m");
            System.out.println(str);
            after();
        }
    }

    public void success(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Success-[" + simpleDateFormat.format(new Date()) + "]:" + line + "\n" + message;
            System.out.format("\033[1;32m");
            System.out.println(str);
            after();
        }
    }

    public void warning(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Warning-[" + simpleDateFormat.format(new Date()) + "]:" + line + "\n" + message;
            System.out.format("\033[1;33m");
            System.out.println(str);
            after();
        }
    }

    public void after() {
    
        System.out.format("\033[0;29m");
    }

}

2 不带分割线版

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * W SKH 的输出工具类
 */
public class LogUtil {
    

    private SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd,HH:mm:ss.SSS");

    public void common(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Common-[" + simpleDateFormat.format(new Date()) + "] : " + message;
            System.out.format("\033[1;29m","utf-8");
            System.out.println(str);
            after();
        }
    }

    public void info(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Info-[" + simpleDateFormat.format(new Date()) + "] : "+ message;
            System.out.format("\033[1;34m");
            System.out.println(str);
            after();
        }
    }

    public void error(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Error-[" + simpleDateFormat.format(new Date()) + "] : " + message;
            System.out.format("\033[1;31m");
            System.out.println(str);
            after();
        }
    }

    public void success(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Success-[" + simpleDateFormat.format(new Date()) + "] : " + message;
            System.out.format("\033[1;32m");
            System.out.println(str);
            after();
        }
    }

    public void warning(String message, boolean canBePrint) {
    
        if (canBePrint) {
    
            String str = "Warning-[" + simpleDateFormat.format(new Date()) + "] :" + message;
            System.out.format("\033[1;33m");
            System.out.println(str);
            after();
        }
    }

    public void after() {
    
        System.out.format("\033[0;29m");
    }

}

3 终极版

终极版取消了字体加粗，并且增加了warning和debug两种输出格式，在输出的信息中可以定位到使用LogUtil输出的语句所在位置，例如下图所示 util.TestLog.main.18（就是说在util包下的TestLog类中的main方法里，输出语句位于该类的18行）

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * W SKH 的输出工具类
 */
public class LogUtil {
    

    protected static SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
    protected static String after = "\033[0;29m";
    public static boolean canBePrint = true;


    public static void common(String message) {
    
        if (canBePrint) {
    
            StackTraceElement stackTraceElement = new Throwable().getStackTrace()[1];
            String classMsg = stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "." + stackTraceElement.getLineNumber();
            System.out.format("\033[0;29m");
            System.out.printf("%-8s", "COMMON");
            System.out.printf("%-26s", "[" + simpleDateFormat.format(new Date()) + "]");
            System.out.printf("%-1s", "[" + classMsg + "]");
            System.out.print(" : " + message + "\n");
            after();
        }
    }

    public static void debug(String message) {
    
        if (canBePrint) {
    
            StackTraceElement stackTraceElement = new Throwable().getStackTrace()[1];
            String classMsg = stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "." + stackTraceElement.getLineNumber();
            System.out.format("\033[0;35m");
            System.out.printf("%-8s", "DEBUG");
            System.out.printf("%-26s", "[" + simpleDateFormat.format(new Date()) + "]");
            System.out.printf("%-1s", "[" + classMsg + "]");
            System.out.print(" : " + message + "\n");
            after();
        }
    }

    public static void info(String message) {
    
        if (canBePrint) {
    
            StackTraceElement stackTraceElement = new Throwable().getStackTrace()[1];
            String classMsg = stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "." + stackTraceElement.getLineNumber();
            System.out.format("\033[0;34m");
            System.out.printf("%-8s", "INFO");
            System.out.printf("%-26s", "[" + simpleDateFormat.format(new Date()) + "]");
            System.out.printf("%-1s", "[" + classMsg + "]");
            System.out.print(" : " + message + "\n");
            after();
        }
    }

    public static void error(String message) {
    
        if (canBePrint) {
    
            StackTraceElement stackTraceElement = new Throwable().getStackTrace()[1];
            String classMsg = stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "." + stackTraceElement.getLineNumber();
            System.out.format("\033[0;31m");
            System.out.printf("%-8s", "ERROR");
            System.out.printf("%-26s", "[" + simpleDateFormat.format(new Date()) + "]");
            System.out.printf("%-1s", "[" + classMsg + "]");
            System.out.print(" : " + message + "\n");
            after();
        }
    }

    public static void success(String message) {
    
        if (canBePrint) {
    
            StackTraceElement stackTraceElement = new Throwable().getStackTrace()[1];
            String classMsg = stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "." + stackTraceElement.getLineNumber();
            System.out.format("\033[0;32m");
            System.out.printf("%-8s", "SUCCESS");
            System.out.printf("%-26s", "[" + simpleDateFormat.format(new Date()) + "]");
            System.out.printf("%-1s", "[" + classMsg + "]");
            System.out.print(" : " + message + "\n");
            after();
        }
    }

    public static void warning(String message) {
    
        if (canBePrint) {
    
            StackTraceElement stackTraceElement = new Throwable().getStackTrace()[1];
            String classMsg = stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "." + stackTraceElement.getLineNumber();
            System.out.format("\033[0;33m");
            System.out.printf("%-8s", "WARNING");
            System.out.printf("%-26s", "[" + simpleDateFormat.format(new Date()) + "]");
            System.out.printf("%-1s", "[" + classMsg + "]");
            System.out.print(" : " + message + "\n");
            after();
        }
    }

    public static void after() {
    
        System.out.format(after);
    }

}