当前位置：首页 > article >正文

Java 根据字符生成背景透明的图片

article 2024/10/10 4:23:36

上代码

package com.example.demotest.controller;

/**
 * @Author shaolin
 * @Date 2024-10-08 10:11
 **/

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.WritableRaster;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Base64;

public class TextToImage {
    public static void main(String[] args) throws IOException {
        ColorModel cm = ColorModel.getRGBdefault();
        // 指定图片宽与高
        WritableRaster wr = cm.createCompatibleWritableRaster(200, 50);
        BufferedImage bi = new BufferedImage(cm, wr, cm.isAlphaPremultiplied(), null);
        Graphics2D graphics = bi.createGraphics();
        // 设置文字
        graphics.setFont(new Font(null, Font.PLAIN, 25));
        // 设置颜色
        graphics.setColor(Color.GRAY);
        // 指定插入文字及其位置
        graphics.drawString("雷少林", 60, 35);
        graphics.dispose();
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        ImageIO.write(bi, "png", byteArrayOutputStream);
        byte[] byteArray = byteArrayOutputStream.toByteArray();
        System.out.println(Base64.getEncoder().encodeToString(byteArray));
    }
}