网站首页 文章专栏 使用java编写自动生成带昵称的头像,仿照钉钉头像
前言 :很多场合都会出现默认头像,比如刚注册的账户还未自定义头像,显示就是默认头像,这种头像一般都很丑,想到钉钉那种风格还挺特别的,仿照写一个。 |
废话不多说,直接上代码,代码部分借鉴别人的,部分自己修改的。
import java.awt.*; import java.awt.geom.RoundRectangle2D; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.util.Random; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.imageio.ImageIO; /** * 根据姓名创建图片 */ public class CreateNamePicture { /** * @throws IOException * @throws **/ public static void main(String[] args) throws IOException { String name = "星尘阁"; generateImg(name, "/Users/xingchenge/Desktop/temp", name); } /** * 绘制字体头像 * 如果是英文名,只显示首字母大写 * 如果是中文名,只显示最后两个字 * @param name * @param outputPath * @param outputName * @throws IOException */ public static void generateImg(String name, String outputPath, String outputName) throws IOException { int width = 100; int height = 100; int nameLen = name.length(); String nameWritten; //如果用户输入的姓名少于等于2个字符,不用截取 if (nameLen <= 2) { nameWritten = name; } else { //如果用户输入的姓名大于等于3个字符,截取后面两位 String first = name.substring(0, 1); if (isChinese(first)) { //截取倒数两位汉字 nameWritten = name.substring(nameLen - 2); } else { //截取前面的两个英文字母 nameWritten = name.substring(0, 2).toUpperCase(); } } String filename = outputPath + File.separator + outputName + ".jpg"; File file = new File(filename); //Font font = new Font("微软雅黑", Font.PLAIN, 30); BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics2D g2 = (Graphics2D) bi.getGraphics(); g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON); g2.setBackground(getRandomColor()); g2.clearRect(0, 0, width, height); g2.setPaint(Color.WHITE); Font font = null; //两个字及以上 if(nameWritten.length() >= 2) { font = new Font("微软雅黑", Font.PLAIN, 30); g2.setFont(font); String firstWritten = nameWritten.substring(0, 1); String secondWritten = nameWritten.substring(1, 2); //两个中文 如 星尘 if (isChinese(firstWritten) && isChinese(secondWritten)) { g2.drawString(nameWritten, 20, 60); } //首中次英 如 杨Y else if (isChinese(firstWritten) && !isChinese(secondWritten)) { g2.drawString(nameWritten, 27, 60); //首英,如 AB } else { nameWritten = nameWritten.substring(0,1); } } //一个字 if(nameWritten.length() ==1) { //中文 if(isChinese(nameWritten)) { font = new Font("微软雅黑", Font.PLAIN, 50); g2.setFont(font); g2.drawString(nameWritten, 25, 70); } //英文 else { font = new Font("微软雅黑", Font.PLAIN, 55); g2.setFont(font); g2.drawString(nameWritten.toUpperCase(), 33, 67); } } BufferedImage rounded = makeRoundedCorner(bi, 99); ImageIO.write(rounded, "png", file); } /** * 判断字符串是否为中文 * @param str * @return */ public static boolean isChinese(String str) { String regEx = "[\\u4e00-\\u9fa5]+"; Pattern p = Pattern.compile(regEx); Matcher m = p.matcher(str); if (m.find()) return true; else return false; } /** * 获得随机颜色 * @return */ private static Color getRandomColor() { String[] beautifulColors = new String[]{"232,221,203", "205,179,128", "3,101,100", "3,54,73", "3,22,52", "237,222,139", "251,178,23", "96,143,159", "1,77,103", "254,67,101", "252,157,154", "249,205,173", "200,200,169", "131,175,155", "229,187,129", "161,23,21", "34,8,7", "118,77,57", "17,63,61", "60,79,57", "95,92,51", "179,214,110", "248,147,29", "227,160,93", "178,190,126", "114,111,238", "56,13,49", "89,61,67", "250,218,141", "3,38,58", "179,168,150", "222,125,44", "20,68,106", "130,57,53", "137,190,178", "201,186,131", "222,211,140", "222,156,83", "23,44,60", "39,72,98", "153,80,84", "217,104,49", "230,179,61", "174,221,129", "107,194,53", "6,128,67", "38,157,128", "178,200,187", "69,137,148", "117,121,71", "114,83,52", "87,105,60", "82,75,46", "171,92,37", "100,107,48", "98,65,24", "54,37,17", "137,157,192", "250,227,113", "29,131,8", "220,87,18", "29,191,151", "35,235,185", "213,26,33", "160,191,124", "101,147,74", "64,116,52", "255,150,128", "255,94,72", "38,188,213", "167,220,224", "1,165,175", "179,214,110", "248,147,29", "230,155,3", "209,73,78", "62,188,202", "224,160,158", "161,47,47", "0,90,171", "107,194,53", "174,221,129", "6,128,67", "38,157,128", "201,138,131", "220,162,151", "137,157,192", "175,215,237", "92,167,186", "255,66,93", "147,224,255", "247,68,97", "185,227,217"}; int len = beautifulColors.length; Random random = new Random(); String[] color = beautifulColors[random.nextInt(len)].split(","); return new Color(Integer.parseInt(color[0]), Integer.parseInt(color[1]), Integer.parseInt(color[2])); } /** * 图片做圆角处理 * @param image * @param cornerRadius * @return */ public static BufferedImage makeRoundedCorner(BufferedImage image, int cornerRadius) { int w = image.getWidth(); int h = image.getHeight(); BufferedImage output = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB); Graphics2D g2 = output.createGraphics(); g2.setComposite(AlphaComposite.Src); g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2.setColor(Color.WHITE); g2.fill(new RoundRectangle2D.Float(0, 0, w, h, cornerRadius, cornerRadius)); g2.setComposite(AlphaComposite.SrcAtop); g2.drawImage(image, 0, 0, null); g2.dispose(); return output; } }
效果图如下:
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