有没有简单的方法来解析日志文件中的Ansi颜色，并在Swing（JTextArea，JTextPAne，...）中的文本字段中使用它？
答案 0 :(得分：9)
没试过，但有some code here（需要一些格式看起来不错），声称是ANSI彩色的JTextPane子类......
对于后代，这是通过NetBeans运行格式化代码的类
import javax.swing.*;
import javax.swing.text.*;
import java.awt.Color;
public class ColorPane extends JTextPane {
static final Color D_Black = Color.getHSBColor( 0.000f, 0.000f, 0.000f );
static final Color D_Red = Color.getHSBColor( 0.000f, 1.000f, 0.502f );
static final Color D_Blue = Color.getHSBColor( 0.667f, 1.000f, 0.502f );
static final Color D_Magenta = Color.getHSBColor( 0.833f, 1.000f, 0.502f );
static final Color D_Green = Color.getHSBColor( 0.333f, 1.000f, 0.502f );
static final Color D_Yellow = Color.getHSBColor( 0.167f, 1.000f, 0.502f );
static final Color D_Cyan = Color.getHSBColor( 0.500f, 1.000f, 0.502f );
static final Color D_White = Color.getHSBColor( 0.000f, 0.000f, 0.753f );
static final Color B_Black = Color.getHSBColor( 0.000f, 0.000f, 0.502f );
static final Color B_Red = Color.getHSBColor( 0.000f, 1.000f, 1.000f );
static final Color B_Blue = Color.getHSBColor( 0.667f, 1.000f, 1.000f );
static final Color B_Magenta = Color.getHSBColor( 0.833f, 1.000f, 1.000f );
static final Color B_Green = Color.getHSBColor( 0.333f, 1.000f, 1.000f );
static final Color B_Yellow = Color.getHSBColor( 0.167f, 1.000f, 1.000f );
static final Color B_Cyan = Color.getHSBColor( 0.500f, 1.000f, 1.000f );
static final Color B_White = Color.getHSBColor( 0.000f, 0.000f, 1.000f );
static final Color cReset = Color.getHSBColor( 0.000f, 0.000f, 1.000f );
static Color colorCurrent = cReset;
String remaining = "";
public void append(Color c, String s) {
StyleContext sc = StyleContext.getDefaultStyleContext();
AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, c);
int len = getDocument().getLength(); // same value as getText().length();
setCaretPosition(len); // place caret at the end (with no selection)
setCharacterAttributes(aset, false);
replaceSelection(s); // there is no selection, so inserts at caret
}
public void appendANSI(String s) { // convert ANSI color codes first
int aPos = 0; // current char position in addString
int aIndex = 0; // index of next Escape sequence
int mIndex = 0; // index of "m" terminating Escape sequence
String tmpString = "";
boolean stillSearching = true; // true until no more Escape sequences
String addString = remaining + s;
remaining = "";
if (addString.length() > 0) {
aIndex = addString.indexOf("\u001B"); // find first escape
if (aIndex == -1) { // no escape/color change in this string, so just send it with current color
append(colorCurrent,addString);
return;
}
// otherwise There is an escape character in the string, so we must process it
if (aIndex > 0) { // Escape is not first char, so send text up to first escape
tmpString = addString.substring(0,aIndex);
append(colorCurrent, tmpString);
aPos = aIndex;
}
// aPos is now at the beginning of the first escape sequence
stillSearching = true;
while (stillSearching) {
mIndex = addString.indexOf("m",aPos); // find the end of the escape sequence
if (mIndex < 0) { // the buffer ends halfway through the ansi string!
remaining = addString.substring(aPos,addString.length());
stillSearching = false;
continue;
}
else {
tmpString = addString.substring(aPos,mIndex+1);
colorCurrent = getANSIColor(tmpString);
}
aPos = mIndex + 1;
// now we have the color, send text that is in that color (up to next escape)
aIndex = addString.indexOf("\u001B", aPos);
if (aIndex == -1) { // if that was the last sequence of the input, send remaining text
tmpString = addString.substring(aPos,addString.length());
append(colorCurrent, tmpString);
stillSearching = false;
continue; // jump out of loop early, as the whole string has been sent now
}
// there is another escape sequence, so send part of the string and prepare for the next
tmpString = addString.substring(aPos,aIndex);
aPos = aIndex;
append(colorCurrent, tmpString);
} // while there's text in the input buffer
}
}
public Color getANSIColor(String ANSIColor) {
if (ANSIColor.equals("\u001B[30m")) { return D_Black; }
else if (ANSIColor.equals("\u001B[31m")) { return D_Red; }
else if (ANSIColor.equals("\u001B[32m")) { return D_Green; }
else if (ANSIColor.equals("\u001B[33m")) { return D_Yellow; }
else if (ANSIColor.equals("\u001B[34m")) { return D_Blue; }
else if (ANSIColor.equals("\u001B[35m")) { return D_Magenta; }
else if (ANSIColor.equals("\u001B[36m")) { return D_Cyan; }
else if (ANSIColor.equals("\u001B[37m")) { return D_White; }
else if (ANSIColor.equals("\u001B[0;30m")) { return D_Black; }
else if (ANSIColor.equals("\u001B[0;31m")) { return D_Red; }
else if (ANSIColor.equals("\u001B[0;32m")) { return D_Green; }
else if (ANSIColor.equals("\u001B[0;33m")) { return D_Yellow; }
else if (ANSIColor.equals("\u001B[0;34m")) { return D_Blue; }
else if (ANSIColor.equals("\u001B[0;35m")) { return D_Magenta; }
else if (ANSIColor.equals("\u001B[0;36m")) { return D_Cyan; }
else if (ANSIColor.equals("\u001B[0;37m")) { return D_White; }
else if (ANSIColor.equals("\u001B[1;30m")) { return B_Black; }
else if (ANSIColor.equals("\u001B[1;31m")) { return B_Red; }
else if (ANSIColor.equals("\u001B[1;32m")) { return B_Green; }
else if (ANSIColor.equals("\u001B[1;33m")) { return B_Yellow; }
else if (ANSIColor.equals("\u001B[1;34m")) { return B_Blue; }
else if (ANSIColor.equals("\u001B[1;35m")) { return B_Magenta; }
else if (ANSIColor.equals("\u001B[1;36m")) { return B_Cyan; }
else if (ANSIColor.equals("\u001B[1;37m")) { return B_White; }
else if (ANSIColor.equals("\u001B[0m")) { return cReset; }
else { return B_White; }
}
}
答案 1 :(得分：2)
如果你的JTextPane是不可编辑的，那么tim_yates方法将不起作用，为了改进他的方法我用
替换了他的追加方法public void append(Color c, String s) {
StyleContext sc = StyleContext.getDefaultStyleContext();
AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, c);
int len = getDocument().getLength();
try {getDocument().insertString(len, s, aset);}
catch (BadLocationException e) {e.printStackTrace();}
}
这种方法似乎更加强大，适用于我尝试过的所有情况，但我还没有完全测试过它
此方法的工作原理是在文档的末尾插入彩色文本，而不是替换不存在的文本，如果它不可编辑，只会导致重复的Windows错误声音，这非常烦人