将字体导入GUI

我试图更改我的GUI的字体，除了基本的5，摇摆似乎随附。 如何导入字体并在我的代码中实际使用它们？

Answer 1

默认情况下通常有5个以上可用，但它们会在不同系统之间变化。 此答案检查现有字体，以及如何加载和注册新字体。

它使用了下载免费字体 （通过热门链接URL获得）提供的’Airacobra Condensed’字体。 您应用的Jar中的字体。 也可以通过URL访问。

import java.awt.*; import javax.swing.*; import java.net.URL; class LoadFont { public static void main(String[] args) throws Exception { // This font is < 35Kb. URL fontUrl = new URL("http://www.webpagepublicity.com/" + "free-fonts/a/Airacobra%20Condensed.ttf"); Font font = Font.createFont(Font.TRUETYPE_FONT, fontUrl.openStream()); GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); ge.registerFont(font); JList fonts = new JList( ge.getAvailableFontFamilyNames() ); JOptionPane.showMessageDialog(null, new JScrollPane(fonts)); } } 

---

好的，这很有趣，但这个字体实际上是什么样的？

 import java.awt.*; import javax.swing.*; import java.net.URL; class DisplayFont { public static void main(String[] args) throws Exception { URL fontUrl = new URL("http://www.webpagepublicity.com/" + "free-fonts/a/Airacobra%20Condensed.ttf"); Font font = Font.createFont(Font.TRUETYPE_FONT, fontUrl.openStream()); font = font.deriveFont(Font.PLAIN,20); GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); ge.registerFont(font); JLabel l = new JLabel( "The quick brown fox jumped over the lazy dog. 0123456789"); l.setFont(font); JOptionPane.showMessageDialog(null, l); } } 

Answer 2

你可以尝试这个：

 Font font = Font.createFont(Font.TRUETYPE_FONT, fontStream); 

下一个，

 GraphicsEnvironment.getLocalGraphicsEnvironment().registerFont(font); 

和，

 new Font("nameOfFont", Font.BOLD, 13) 

Answer 3

这是一种加载打包在jar文件+ xml文件中的字体的方法，以读出字体大小，字体名称和字体文件名 ：

1）FontLibrary类：

 package be.nicholas.font.loading; import java.awt.Font; import java.io.InputStream; import java.util.HashMap; import java.util.Map; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import be.nicholas.font.CustomFont; import be.nicholas.utils.Logger; import be.nicholas.utils.Misc; public class FontLibrary { public static Map fonts = null; private static Logger logger = Logger.getInstance(); public FontLibrary() { } /** * Get the font by it's name. * @param fontname the font name * @return The font for the given id if it exists. */ public static Font getFont(String fontname) { Font f = FontLibrary.fonts.get(fontname); if(f == null) logger.error("Font ("+fontname+") could not be found."); return f; } /** * Get the font by it's name and change the fontsize * @param fontname the font name. * @param fontsize * @return Font */ public static Font getFont(String fontname, int fontsize) { Font f = FontLibrary.fonts.get(fontname).deriveFont((float) fontsize); if(f == null) logger.error("Font ("+fontname+") could not be found."); return f; } public static void load() { try { InputStream fontStream = FontLibrary.class.getResourceAsStream("/data/fonts/fonts.xml"); DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder dBuilder = dbFactory.newDocumentBuilder(); Document doc = dBuilder.parse(fontStream); doc.getDocumentElement().normalize(); NodeList nList = doc.getElementsByTagName("font"); fonts = new HashMap(); logger.error("Starting to load fonts..."); for (int temp = 0; temp < nList.getLength(); temp++) { Node nNode = nList.item(temp); if (nNode.getNodeType() == Node.ELEMENT_NODE) { Element fontElement = (Element) nNode; CustomFont f = new CustomFont(); f.setName(getTagValue("name", fontElement)); f.setFont(CustomFont.load(getTagValue("filename", fontElement), Integer.parseInt(getTagValue("fontsize", fontElement)))); f.setSize(Integer.parseInt(getTagValue("fontsize", fontElement))); fonts.put(f.getName(), f.getFont()); /** * Calculate percentage */ int percent = Misc.getPercentage(fonts.size(), nList.getLength()); String msg = percent+"% of fonts loaded("+fonts.size()+" of "+nList.getLength()+")"; } } } catch (Exception e) { logger.error("Error: "+e); } logger.error("All fonts loaded!"+"("+fonts.size()+" fonts int total)."); //logger.info(fonts.size()+" = size of fontsmap. -> name ofzo: "+fonts.get("rssmall")); } private static String getTagValue(String sTag, Element eElement) { NodeList nlList = eElement.getElementsByTagName(sTag).item(0).getChildNodes(); Node nValue = (Node) nlList.item(0); return nValue.getNodeValue(); } } 

2）CustomFont类：

 package be.nicholas.font; import java.awt.Font; import java.io.InputStream; import be.nicholas.font.loading.FontLibrary; import be.nicholas.utils.Misc; public class CustomFont { public String name; public Font fontObject; public int size; public CustomFont() { //super(font); } public void setFont(Font fontObject) { this.fontObject = fontObject; } public Font getFont() { return this.fontObject; } public void setName(String name) { this.name = name; } public String getName() { return this.name; } public void setSize(int size) { this.size = size; } public int getSize() { return this.size; } public static Font load(String filename,int fontSize) { InputStream fontStream = CustomFont.class.getResourceAsStream("/be/nicholas/fonts/"+filename); if (fontStream != null) { try { Font labelFont; labelFont = Font.createFont(Font.TRUETYPE_FONT, fontStream); labelFont = labelFont.deriveFont((float) fontSize); return labelFont; } catch (Exception e) { System.out.println("error " + e); } } return null; } } 

3）XML结构：

   mycustomfontname myfont.ttf 16   champagne ChampagneAndLimousines.ttf 50   

4）加载字体：

 JLabel label = new JLabel('testText'); //load it with the default given font size label.setFont(FontLibrary.fonts.get("mycustomfontname")); //load a font with a custom font size: label.setFont(FontLibrary.fonts.get("mycustomfontname").deriveFont(22)); 

我希望这会有所帮助：）…我是一个真正的java新手，我在第5天用java做了这个，所以它远非完美，但它会完成这项工作