JAVA后端生成类似于分享海报图片的功能的实现

最新推荐文章于 2025-05-20 00:15:00 发布

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不正经的程序袁

最新推荐文章于 2025-05-20 00:15:00 发布

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分类专栏：后端文章标签： JAVA 图片生成二维码生成

本文链接：https://blog.youkuaiyun.com/weixin_38340467/article/details/90605416

首先确定一下我们需要实现的效果图

核心代码如下：

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Toolkit;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.net.URL;

import javax.imageio.ImageIO;


public void drawCouponPosterImage(String host, Long userId, GoodsInfoVO vo,String filePath)  {
		try {
			String pngString = vo.getPicUrl().substring(vo.getPicUrl().length() - 3);
			String savePath = ZshopConstants.UploadFilesConstants.STATICFILESTEMPPATH;
			String imageName = System.currentTimeMillis() + ".png";
			if (pngString.equals("png")) {
				URL url = new URL(vo.getPicUrl());
				InputStream is = url.openStream();
				byte[] buffer = new byte[1024];
				int len = 0;

				File imageFile = new File(savePath + File.separator + imageName);
				OutputStream os = new FileOutputStream(imageFile);
				if (!imageFile.exists()) {
					imageFile.mkdirs();
				}
				while ((len = is.read(buffer)) != -1) {
					os.write(buffer, 0, len);
				}
				os.close();
				is.close();
				System.out.println("保存图片");
			}

			JSONObject json = new JSONObject();
			json.put("userId", userId);
			json.put("goodsId", vo.getGoodsId());

			// 平台
			String platPath = host + "/resources/images/invite/taobao.png";
			if ("tmall".equals(vo.getFrom())) {
				platPath = host + "/resources/images/invite/tianmao.png";
			} else if ("jd".equals(vo.getFrom())) {
				platPath = host + "/resources/images/invite/jd.png";
			} else if ("pdd".equals(vo.getFrom())) {
				platPath = host + "/resources/images/invite/pdd.png";
			}
			BufferedImage platImage = ImageIO.read(new URL(platPath));

			// 透明底
			BufferedImage bg = new BufferedImage(750, 1250, BufferedImage.TYPE_INT_RGB);
			Graphics2D g = bg.createG