如何使用System.out.println在控制台中打印颜色？
如何在控制台中打印颜色？ 我想在处理器发送数据时用颜色显示数据，并在接收数据时用不同的颜色显示数据。
如果您的终端支持它，则可以使用ANSI转义码在输出中使用颜色。 它通常适用于Unix shell提示; 但是，它不适用于Windows命令提示符（尽管它对Cygwin有效）。 例如，你可以为这些颜色定义这些常量：
public static final String ANSI_RESET = "u001B[0m";
public static final String ANSI_BLACK = "u001B[30m";
public static final String ANSI_RED = "u001B[31m";
public static final String ANSI_GREEN = "u001B[32m";
public static final String ANSI_YELLOW = "u001B[33m";
public static final String ANSI_BLUE = "u001B[34m";
public static final String ANSI_PURPLE = "u001B[35m";
public static final String ANSI_CYAN = "u001B[36m";
public static final String ANSI_WHITE = "u001B[37m";
然后，您可以根据需要参考这些内容。
例如，使用上述常量，可以在受支持的终端上输出以下红色文本：
System.out.println(ANSI_RED + "This text is red!" + ANSI_RESET);
更新：您可能想要查看Jansi图书馆。 它提供了一个API，并使用JNI支持Windows。 我还没有尝试过; 不过，它看起来很有希望。
更新2：另外，如果您希望将文本的背景颜色更改为不同的颜色，则还可以尝试以下操作：
public static final String ANSI_BLACK_BACKGROUND = "u001B[40m";
public static final String ANSI_RED_BACKGROUND = "u001B[41m";
public static final String ANSI_GREEN_BACKGROUND = "u001B[42m";
public static final String ANSI_YELLOW_BACKGROUND = "u001B[43m";
public static final String ANSI_BLUE_BACKGROUND = "u001B[44m";
public static final String ANSI_PURPLE_BACKGROUND = "u001B[45m";
public static final String ANSI_CYAN_BACKGROUND = "u001B[46m";
public static final String ANSI_WHITE_BACKGROUND = "u001B[47m";
例如：
System.out.println(ANSI_GREEN_BACKGROUND + "This text has a green background but default text!" + ANSI_RESET);
System.out.println(ANSI_RED + "This text has red text but a default background!" + ANSI_RESET);
System.out.println(ANSI_GREEN_BACKGROUND + ANSI_RED + "This text has a green background and red text!" + ANSI_RESET);
我创建了一个名为JCDP（Java Colored Debug Printer）的库。
对于Linux，它使用WhiteFang提到的ANSI转义代码，但是使用单词而不是直接更直观的代码来抽象它们。 它变得和以下一样容易：
print("Hello World!", Attribute.BOLD, FColor.YELLOW, BColor.GREEN);
对于Windows，它实际上包含JAnsi库，但在其上创建一个抽象层，维护为Linux创建的直观和简单的界面。
该图书馆根据MIT许可证获得许可，因此可以随意使用它。
看看JCDP的github存储库。
以下是带有public static字段的Java类中的颜色列表
用法
System.out.println(ConsoleColors.RED + "RED COLORED" +
ConsoleColors.RESET + " NORMAL");
注意不要忘记在打印后使用RESET ，因为如果未清除，效果将保留
public class ConsoleColors {
// Reset
public static final String RESET = " 33[0m"; // Text Reset
// Regular Colors
public static final String BLACK = " 33[0;30m"; // BLACK
public static final String RED = " 33[0;31m"; // RED
public static final String GREEN = " 33[0;32m"; // GREEN
public static final String YELLOW = " 33[0;33m"; // YELLOW
public static final String BLUE = " 33[0;34m"; // BLUE
public static final String PURPLE = " 33[0;35m"; // PURPLE
public static final String CYAN = " 33[0;36m"; // CYAN
public static final String WHITE = " 33[0;37m"; // WHITE
// Bold
public static final String BLACK_BOLD = " 33[1;30m"; // BLACK
public static final String RED_BOLD = " 33[1;31m"; // RED
public static final String GREEN_BOLD = " 33[1;32m"; // GREEN
public static final String YELLOW_BOLD = " 33[1;33m"; // YELLOW
public static final String BLUE_BOLD = " 33[1;34m"; // BLUE
public static final String PURPLE_BOLD = " 33[1;35m"; // PURPLE
public static final String CYAN_BOLD = " 33[1;36m"; // CYAN
public static final String WHITE_BOLD = " 33[1;37m"; // WHITE
// Underline
public static final String BLACK_UNDERLINED = " 33[4;30m"; // BLACK
public static final String RED_UNDERLINED = " 33[4;31m"; // RED
public static final String GREEN_UNDERLINED = " 33[4;32m"; // GREEN
public static final String YELLOW_UNDERLINED = " 33[4;33m"; // YELLOW
public static final String BLUE_UNDERLINED = " 33[4;34m"; // BLUE
public static final String PURPLE_UNDERLINED = " 33[4;35m"; // PURPLE
public static final String CYAN_UNDERLINED = " 33[4;36m"; // CYAN
public static final String WHITE_UNDERLINED = " 33[4;37m"; // WHITE
// Background
public static final String BLACK_BACKGROUND = " 33[40m"; // BLACK
public static final String RED_BACKGROUND = " 33[41m"; // RED
public static final String GREEN_BACKGROUND = " 33[42m"; // GREEN
public static final String YELLOW_BACKGROUND = " 33[43m"; // YELLOW
public static final String BLUE_BACKGROUND = " 33[44m"; // BLUE
public static final String PURPLE_BACKGROUND = " 33[45m"; // PURPLE
public static final String CYAN_BACKGROUND = " 33[46m"; // CYAN
public static final String WHITE_BACKGROUND = " 33[47m"; // WHITE
// High Intensity
public static final String BLACK_BRIGHT = " 33[0;90m"; // BLACK
public static final String RED_BRIGHT = " 33[0;91m"; // RED
public static final String GREEN_BRIGHT = " 33[0;92m"; // GREEN
public static final String YELLOW_BRIGHT = " 33[0;93m"; // YELLOW
public static final String BLUE_BRIGHT = " 33[0;94m"; // BLUE
public static final String PURPLE_BRIGHT = " 33[0;95m"; // PURPLE
public static final String CYAN_BRIGHT = " 33[0;96m"; // CYAN
public static final String WHITE_BRIGHT = " 33[0;97m"; // WHITE
// Bold High Intensity
public static final String BLACK_BOLD_BRIGHT = " 33[1;90m"; // BLACK
public static final String RED_BOLD_BRIGHT = " 33[1;91m"; // RED
public static final String GREEN_BOLD_BRIGHT = " 33[1;92m"; // GREEN
public static final String YELLOW_BOLD_BRIGHT = " 33[1;93m";// YELLOW
public static final String BLUE_BOLD_BRIGHT = " 33[1;94m"; // BLUE
public static final String PURPLE_BOLD_BRIGHT = " 33[1;95m";// PURPLE
public static final String CYAN_BOLD_BRIGHT = " 33[1;96m"; // CYAN
public static final String WHITE_BOLD_BRIGHT = " 33[1;97m"; // WHITE
// High Intensity backgrounds
public static final String BLACK_BACKGROUND_BRIGHT = " 33[0;100m";// BLACK
public static final String RED_BACKGROUND_BRIGHT = " 33[0;101m";// RED
public static final String GREEN_BACKGROUND_BRIGHT = " 33[0;102m";// GREEN
public static final String YELLOW_BACKGROUND_BRIGHT = " 33[0;103m";// YELLOW
public static final String BLUE_BACKGROUND_BRIGHT = " 33[0;104m";// BLUE
public static final String PURPLE_BACKGROUND_BRIGHT = " 33[0;105m"; // PURPLE
public static final String CYAN_BACKGROUND_BRIGHT = " 33[0;106m"; // CYAN
public static final String WHITE_BACKGROUND_BRIGHT = " 33[0;107m"; // WHITE
}
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