我如何在控制台打印颜色?当处理器发送数据时，我想用不同的颜色显示数据，当处理器接收数据时，我想用不同的颜色显示数据。
当前回答
失败:
public static final String ANSI_STRIKEOUT_BLACK = "\u001B[30;9m";
public static final String ANSI_STRIKEOUT_RED = "\u001B[31;9m";
public static final String ANSI_STRIKEOUT_GREEN = "\u001B[32;9m";
public static final String ANSI_STRIKEOUT_YELLOW = "\u001B[33;9m";
public static final String ANSI_STRIKEOUT_BLUE = "\u001B[34;9m";
public static final String ANSI_STRIKEOUT_PURPLE = "\u001B[35;9m";
public static final String ANSI_STRIKEOUT_CYAN = "\u001B[36;9m";
public static final String ANSI_STRIKEOUT_WHITE = "\u001B[37;9m";
其他回答
为控制台文本上色的最好方法是使用ANSI转义码。除了文本颜色，ANSI转义码还允许背景色、装饰色等。
Unix
如果你使用springboot，文本着色有一个特定的enum: org.springframework.boot.ansi.AnsiColor
Jansi库更高级一点(可以使用所有的ANSI转义代码函数)，提供了一个API，并支持使用JNA的Windows。
否则，您可以手动定义自己的颜色，如其他响应所示。
Windows 10
Windows 10(自build 10.0.10586 - 2015年11月)支持ANSI转义码(MSDN文档)，但默认情况下不启用。启用它:
对于SetConsoleMode API，使用ENABLE_VIRTUAL_TERMINAL_PROCESSING (0x0400)标志。Jansi使用这个选项。 如果没有使用SetConsoleMode API，可以通过创建一个dword来更改全局注册表键HKEY_CURRENT_USER\Console\VirtualTerminalLevel，并将其设置为0或1用于ANSI处理: “VirtualTerminalLevel”= dword: 00000001
Windows 10之前
Windows控制台不支持ANSI颜色。但也可以使用控制台。
如果您的终端支持它，您可以使用ANSI转义码在输出中使用颜色。它通常适用于Unix shell提示符;然而，它并不适用于Windows命令提示符(尽管，它适用于Cygwin)。例如，你可以为颜色定义这样的常量:
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，您可以在必要时引用它们。
例如，使用上述常量，你可以在受支持的终端上输出如下红色文本:
System.out.println(ANSI_RED + "This text is red!" + ANSI_RESET);
更新:您可能想要查看Jansi库。它提供了一个API，并支持使用JNI的Windows。我还没试过;然而，它看起来很有希望。
更新2:同样，如果你想改变文本的背景颜色为不同的颜色，你也可以尝试以下方法:
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);
如果你使用Kotlin(它与Java无缝工作)，你可以创建这样一个枚举:
enum class AnsiColor(private val colorNumber: Byte) {
BLACK(0), RED(1), GREEN(2), YELLOW(3), BLUE(4), MAGENTA(5), CYAN(6), WHITE(7);
companion object {
private const val prefix = "\u001B"
const val RESET = "$prefix[0m"
private val isCompatible = "win" !in System.getProperty("os.name").toLowerCase()
}
val regular get() = if (isCompatible) "$prefix[0;3${colorNumber}m" else ""
val bold get() = if (isCompatible) "$prefix[1;3${colorNumber}m" else ""
val underline get() = if (isCompatible) "$prefix[4;3${colorNumber}m" else ""
val background get() = if (isCompatible) "$prefix[4${colorNumber}m" else ""
val highIntensity get() = if (isCompatible) "$prefix[0;9${colorNumber}m" else ""
val boldHighIntensity get() = if (isCompatible) "$prefix[1;9${colorNumber}m" else ""
val backgroundHighIntensity get() = if (isCompatible) "$prefix[0;10${colorNumber}m" else ""
}
然后像这样使用is:(下面的代码展示了所有颜色的不同样式)
val sampleText = "This is a sample text"
enumValues<AnsiColor>().forEach { ansiColor ->
println("${ansiColor.regular}$sampleText${AnsiColor.RESET}")
println("${ansiColor.bold}$sampleText${AnsiColor.RESET}")
println("${ansiColor.underline}$sampleText${AnsiColor.RESET}")
println("${ansiColor.background}$sampleText${AnsiColor.RESET}")
println("${ansiColor.highIntensity}$sampleText${AnsiColor.RESET}")
println("${ansiColor.boldHighIntensity}$sampleText${AnsiColor.RESET}")
println("${ansiColor.backgroundHighIntensity}$sampleText${AnsiColor.RESET}")
}
如果运行在不支持这些ANSI代码的Windows上，isCompatible检查通过将代码替换为空字符串来避免问题。
失败:
public static final String ANSI_STRIKEOUT_BLACK = "\u001B[30;9m";
public static final String ANSI_STRIKEOUT_RED = "\u001B[31;9m";
public static final String ANSI_STRIKEOUT_GREEN = "\u001B[32;9m";
public static final String ANSI_STRIKEOUT_YELLOW = "\u001B[33;9m";
public static final String ANSI_STRIKEOUT_BLUE = "\u001B[34;9m";
public static final String ANSI_STRIKEOUT_PURPLE = "\u001B[35;9m";
public static final String ANSI_STRIKEOUT_CYAN = "\u001B[36;9m";
public static final String ANSI_STRIKEOUT_WHITE = "\u001B[37;9m";
下面是带有公共静态字段的Java类中的颜色列表
使用
System.out.println(ConsoleColors.RED + "RED COLORED" +
ConsoleColors.RESET + " NORMAL");
请注意 不要忘记在打印后使用RESET，因为如果它没有被清除，效果将仍然存在
public class ConsoleColors {
// Reset
public static final String RESET = "\033[0m"; // Text Reset
// Regular Colors
public static final String BLACK = "\033[0;30m"; // BLACK
public static final String RED = "\033[0;31m"; // RED
public static final String GREEN = "\033[0;32m"; // GREEN
public static final String YELLOW = "\033[0;33m"; // YELLOW
public static final String BLUE = "\033[0;34m"; // BLUE
public static final String PURPLE = "\033[0;35m"; // PURPLE
public static final String CYAN = "\033[0;36m"; // CYAN
public static final String WHITE = "\033[0;37m"; // WHITE
// Bold
public static final String BLACK_BOLD = "\033[1;30m"; // BLACK
public static final String RED_BOLD = "\033[1;31m"; // RED
public static final String GREEN_BOLD = "\033[1;32m"; // GREEN
public static final String YELLOW_BOLD = "\033[1;33m"; // YELLOW
public static final String BLUE_BOLD = "\033[1;34m"; // BLUE
public static final String PURPLE_BOLD = "\033[1;35m"; // PURPLE
public static final String CYAN_BOLD = "\033[1;36m"; // CYAN
public static final String WHITE_BOLD = "\033[1;37m"; // WHITE
// Underline
public static final String BLACK_UNDERLINED = "\033[4;30m"; // BLACK
public static final String RED_UNDERLINED = "\033[4;31m"; // RED
public static final String GREEN_UNDERLINED = "\033[4;32m"; // GREEN
public static final String YELLOW_UNDERLINED = "\033[4;33m"; // YELLOW
public static final String BLUE_UNDERLINED = "\033[4;34m"; // BLUE
public static final String PURPLE_UNDERLINED = "\033[4;35m"; // PURPLE
public static final String CYAN_UNDERLINED = "\033[4;36m"; // CYAN
public static final String WHITE_UNDERLINED = "\033[4;37m"; // WHITE
// Background
public static final String BLACK_BACKGROUND = "\033[40m"; // BLACK
public static final String RED_BACKGROUND = "\033[41m"; // RED
public static final String GREEN_BACKGROUND = "\033[42m"; // GREEN
public static final String YELLOW_BACKGROUND = "\033[43m"; // YELLOW
public static final String BLUE_BACKGROUND = "\033[44m"; // BLUE
public static final String PURPLE_BACKGROUND = "\033[45m"; // PURPLE
public static final String CYAN_BACKGROUND = "\033[46m"; // CYAN
public static final String WHITE_BACKGROUND = "\033[47m"; // WHITE
// High Intensity
public static final String BLACK_BRIGHT = "\033[0;90m"; // BLACK
public static final String RED_BRIGHT = "\033[0;91m"; // RED
public static final String GREEN_BRIGHT = "\033[0;92m"; // GREEN
public static final String YELLOW_BRIGHT = "\033[0;93m"; // YELLOW
public static final String BLUE_BRIGHT = "\033[0;94m"; // BLUE
public static final String PURPLE_BRIGHT = "\033[0;95m"; // PURPLE
public static final String CYAN_BRIGHT = "\033[0;96m"; // CYAN
public static final String WHITE_BRIGHT = "\033[0;97m"; // WHITE
// Bold High Intensity
public static final String BLACK_BOLD_BRIGHT = "\033[1;90m"; // BLACK
public static final String RED_BOLD_BRIGHT = "\033[1;91m"; // RED
public static final String GREEN_BOLD_BRIGHT = "\033[1;92m"; // GREEN
public static final String YELLOW_BOLD_BRIGHT = "\033[1;93m";// YELLOW
public static final String BLUE_BOLD_BRIGHT = "\033[1;94m"; // BLUE
public static final String PURPLE_BOLD_BRIGHT = "\033[1;95m";// PURPLE
public static final String CYAN_BOLD_BRIGHT = "\033[1;96m"; // CYAN
public static final String WHITE_BOLD_BRIGHT = "\033[1;97m"; // WHITE
// High Intensity backgrounds
public static final String BLACK_BACKGROUND_BRIGHT = "\033[0;100m";// BLACK
public static final String RED_BACKGROUND_BRIGHT = "\033[0;101m";// RED
public static final String GREEN_BACKGROUND_BRIGHT = "\033[0;102m";// GREEN
public static final String YELLOW_BACKGROUND_BRIGHT = "\033[0;103m";// YELLOW
public static final String BLUE_BACKGROUND_BRIGHT = "\033[0;104m";// BLUE
public static final String PURPLE_BACKGROUND_BRIGHT = "\033[0;105m"; // PURPLE
public static final String CYAN_BACKGROUND_BRIGHT = "\033[0;106m"; // CYAN
public static final String WHITE_BACKGROUND_BRIGHT = "\033[0;107m"; // WHITE
}
推荐文章
- 在流中使用Java 8 foreach循环移动到下一项
- 访问限制:'Application'类型不是API(必需库rt.jar的限制)
- 用Java计算两个日期之间的天数
- 如何配置slf4j-simple
- 在Jar文件中运行类
- 带参数的可运行?
- 我如何得到一个字符串的前n个字符而不检查大小或出界?
- 我可以在Java中设置enum起始值吗?
- Java中的回调函数
- c#和Java中的泛型有什么不同?和模板在c++ ?
- 在Java中，流相对于循环的优势是什么?
- Jersey在未找到InjectionManagerFactory时停止工作
- 在Java流是peek真的只是调试?
- Recyclerview不调用onCreateViewHolder
- 将JSON字符串转换为HashMap
