Java获取字符串像素

计算字符串的像素长度与高度：

Graphics2D g = (Graphics2D)Toolkit.getDefaultToolkit().

getImage("imgname").getGraphics();

// 设置大字体

Font font = new Font("楷体", Font.ITALIC | Font.BOLD, 72);

g.setFont(font);

FontRenderContext context = g.getFontRenderContext();

// 获取字体的像素范围对象    

Rectangle2D stringBounds = font.getStringBounds("text", context);

double fontWidth = stringBounds.getWidth();