java合成海报的工具类(二维码、头像、海报)

于 2019-04-26 20:56:00 发布
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分类专栏： Java

参考网站

https://my.oschina.net/u/2426590/blog/3027726

 

java Graphics2D绘制文字并居中并解决服务器乱码问题

https://blog.youkuaiyun.com/w410589502/article/details/72898184

 

我自己的代码：


import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.geom.Ellipse2D;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.net.URL;

import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.platform.annotation.IgnoreAuth;
import com.platform.utils.util.OssUtil;

@Controller
@RequestMapping(value = "/api/img")
public class ImageUtil {
	static final String IMAGE_SUFFIX = ".png";

	/**
	 * @param posterImgUrl
	 *            海报
	 * @param tempQrCodeImgUrl
	 *            临时二维码
	 * @param headImgUrl
	 *            头像 nameText 昵称 cqText 二维码文字
	 * @return 合成图片地址
	 */
	public static String drawImage(String posterImgUrl, String tempQrCodeImgUrl, String headImgUrl, String nameText,
			String cqText) throws IOException {
	

		int width = 620;
		int height = 1004;
		BufferedImage bgBufImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);// RGB形式
		Graphics2D bgBufImageGraphics = bgBufImage.createGraphics();
		bgBufImageGraphics.setBackground(Color.WHITE);// 设置背景色
		bgBufImageGraphics.clearRect(0, 0, width, height);// 通过使用当前绘图表面的背景色进行填充来清除指定的矩形。

		// bgBufImageGraphics.setBackground(new Color(255,255,255));
		bgBufImageGraphics.setPaint(Color.black);// 设置画笔,设置Paint属性
		Font font = new Font("宋体", Font.PLAIN, 28);
		bgBufImageGraphics.setFont(font);
		// 抗锯齿
		bgBufImageGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		// 计算文字长度，计算居中的x点坐标
		FontMetrics fm = bgBufImageGraphics.getFontMetrics(font);
		int textWidth = fm.stringWidth(nameText);
		// int widthX = (width - textWidth) / 2;
		int widthX = 128;
		// 表示这段文字在图片上的位置(x,y) .第一个是你设置的内容。
		bgBufImageGraphics.drawString(nameText, widthX, 926);
		// 计算文字长度，计算居中的x点坐标
		// int widthX = (width - textWidth) / 2;
		int cqCodeWidthX = 372;
		// 表示这段文字在图片上的位置(x,y) .第一个是你设置的内容。
		bgBufImageGraphics.drawString(cqText, cqCodeWidthX, 958);

		// BufferedImage posterBufImage = ImageIO.read(new URL(posterImgUrl));
		// //直接使用图片做背景，自定义背景使用上面方式
		// Graphics2D posterBufImageGraphics = posterBufImage.createGraphics();

		BufferedImage posterBufImage = ImageIO.read(new URL(posterImgUrl));
		BufferedImage qrCodeImage = ImageIO.read(new URL(tempQrCodeImgUrl));
		BufferedImage headImage = ImageIO.read(new URL(headImgUrl));

		// 设置圆形头像
		BufferedImage roundHeadImg = new BufferedImage(headImage.getWidth(), headImage.getHeight(),
				BufferedImage.TYPE_INT_RGB);

		Graphics2D roundHeadGraphics = roundHeadImg.createGraphics();
		Ellipse2D.Double shape = new Ellipse2D.Double(0, 0, roundHeadImg.getWidth(), roundHeadImg.getHeight());
		roundHeadGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		roundHeadImg = roundHeadGraphics.getDeviceConfiguration().createCompatibleImage(headImage.getWidth(),
				headImage.getHeight(), Transparency.TRANSLUCENT);
		roundHeadGraphics = roundHeadImg.createGraphics();
		// 使用 setRenderingHint 设置抗锯齿
		roundHeadGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		roundHeadGraphics.setClip(shape);
		roundHeadGraphics.drawImage(headImage, 0, 0, null);
		roundHeadGraphics.dispose();

		// bgBufImageGraphics.drawImage(qrCodeImage, (posterBufImage.getWidth()
		// - qrCodeImage.getWidth()), 10, qrCodeImage.getWidth(),
		// qrCodeImage.getHeight(), null);
		// posterBufImageGraphics.drawImage(roundHeadImg, 50, 100,
		// HEAD_URL_WIDTH, HEAD_URL_HEIGHT, null);
		bgBufImageGraphics.drawImage(qrCodeImage, 444, 848, 72, 72, null);
		bgBufImageGraphics.drawImage(roundHeadImg, 32, 876, 80, 80, null);
		bgBufImageGraphics.drawImage(posterBufImage, 0, 0, 620, 826, null);
		bgBufImageGraphics.dispose();

		ByteArrayOutputStream bs = new ByteArrayOutputStream();
		ImageOutputStream imgOut = ImageIO.createImageOutputStream(bs);
		ImageIO.write(bgBufImage, "png", imgOut);
		// 上传到服务器上
		// InputStream inSteam = new ByteArrayInputStream(bs.toByteArray());
		// String url = OSSFactory.build().uploadSuffix(inSteam, IMAGE_SUFFIX);
		// 上传到服务器上
		String url = OssUtil.uploadObject2OSS(bs.toByteArray());
		return url;// 返回合成的图片地址url
	}

	public static void drawImage() throws IOException {
		// 海报图
		// String backgroundImageUrl =
		// "http://img1.juimg.com/171010/330841-1G01000050879.jpg";
		String backgroundImageUrl = "http://diaosaas-prod.oss-cn-shenzhen.aliyuncs.com/education/155547979572510070.jpg";
		// 二维码
		String qrCodeImageUrl = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1553504957130&di=02fae20a5c0f885d52299b2b1d682c86&imgtype=0&src=http%3A%2F%2Fimg.atobo.com%2FProductImg%2FEWM%2FUWeb%2F3%2F2%2F1%2F3%2F061%2F3213061%2F1.gif";
		// 头像
		// String headUrl =
		// "http://pic.51yuansu.com/pic3/cover/00/63/25/589bdedf5475d_610.jpg";
		String headUrl = "http://thirdwx.qlogo.cn/mmopen/vi_32/ZW8dgKbUicrCdotRItMTpAaxibAwj6nVMJvQoGLyKbaRvah93dXWrENSoum20dKicnJqd2xh1U4NhmC41L7q2Gwqg/132";
		String nameText = "古月争取";
		String cqText = "扫一扫，为我加油！";
		int width = 310;
		int height = 502;
		BufferedImage bgBufImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);// RGB形式
		Graphics2D bgBufImageGraphics = bgBufImage.createGraphics();
		bgBufImageGraphics.setBackground(Color.WHITE);// 设置背景色
		bgBufImageGraphics.clearRect(0, 0, width, height);// 通过使用当前绘图表面的背景色进行填充来清除指定的矩形。

		// bgBufImageGraphics.setBackground(new Color(255,255,255));
		bgBufImageGraphics.setPaint(Color.black);// 设置画笔,设置Paint属性
		Font font = new Font("宋体", Font.PLAIN, 14);
		bgBufImageGraphics.setFont(font);
		// 抗锯齿
		bgBufImageGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		// 计算文字长度，计算居中的x点坐标
		FontMetrics fm = bgBufImageGraphics.getFontMetrics(font);
		int textWidth = fm.stringWidth(nameText);
		// int widthX = (width - textWidth) / 2;
		int widthX = 64;
		// 表示这段文字在图片上的位置(x,y) .第一个是你设置的内容。
		bgBufImageGraphics.drawString(nameText, widthX, 463);
		// 计算文字长度，计算居中的x点坐标
		// int widthX = (width - textWidth) / 2;
		int cqCodeWidthX = 186;
		// 表示这段文字在图片上的位置(x,y) .第一个是你设置的内容。
		bgBufImageGraphics.drawString(cqText, cqCodeWidthX, 479);

		BufferedImage posterImage = ImageIO.read(new URL(backgroundImageUrl));
		BufferedImage qrCodeImage = ImageIO.read(new URL(qrCodeImageUrl));
		BufferedImage headImage = ImageIO.read(new URL(headUrl));
		// 设置圆形图片
		BufferedImage roundHeadImg = new BufferedImage(headImage.getWidth(), headImage.getHeight(),
				BufferedImage.TYPE_INT_RGB);

		Graphics2D roundHeadGraphics = roundHeadImg.createGraphics();
		Ellipse2D.Double shape = new Ellipse2D.Double(0, 0, roundHeadImg.getWidth(), roundHeadImg.getHeight());
		roundHeadGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		roundHeadImg = roundHeadGraphics.getDeviceConfiguration().createCompatibleImage(headImage.getWidth(),
				headImage.getHeight(), Transparency.TRANSLUCENT);
		roundHeadGraphics = roundHeadImg.createGraphics();
		// 使用 setRenderingHint 设置抗锯齿
		roundHeadGraphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		roundHeadGraphics.setClip(shape);
		roundHeadGraphics.drawImage(headImage, 0, 0, null);
		roundHeadGraphics.dispose();

		bgBufImageGraphics.drawImage(qrCodeImage, 444, 848, 72, 72, null);
		// bgBufImageGraphics.drawImage(qrCodeImage, (bgBufImage.getWidth() -
		// qrCodeImage.getWidth()), 10, qrCodeImage.getWidth(),
		// qrCodeImage.getHeight(), null);
		bgBufImageGraphics.drawImage(roundHeadImg, 32, 876, 80, 80, null);
		bgBufImageGraphics.drawImage(posterImage, 0, 0, 620, 826, null);
		bgBufImageGraphics.dispose();
		ImageIO.write(bgBufImage, "png", new File("E:\\demo1.png"));
		System.out.println("生成图片完成");

	}

	/**
	 * 上传到网络
	 * 
	 * @author LHB
	 * @since JDK 1.8
	 */
	/*
	 * public static void main(String[] args) throws IOException { //海报图 String
	 * backgroundImageUrl =
	 * "http://47.92.209.5:8080/upload/15460848171054280132559.jpg"; // String
	 * backgroundImageUrl =
	 * "http://img1.juimg.com/171010/330841-1G01000050879.jpg"; //二维码 // String
	 * qrCodeImageUrl =
	 * "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1553504957130&di=02fae20a5c0f885d52299b2b1d682c86&imgtype=0&src=http%3A%2F%2Fimg.atobo.com%2FProductImg%2FEWM%2FUWeb%2F3%2F2%2F1%2F3%2F061%2F3213061%2F1.gif";
	 * String qrCodeImageUrl =
	 * "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=gQE18TwAAAAAAAAAAS5odHRwOi8vd2VpeGluLnFxLmNvbS9xLzAyNEhIcXBjNk1mZzExMDAwMDAwN0UAAgR-AMNcAwQAAAAA";
	 * //头像 String headUrl =
	 * "http://thirdwx.qlogo.cn/mmopen/vi_32/J8e7icsMJ9r122G4h349YdB3WewUyaICxuoqC0HsaHDOfuRibPiclcOP8mnfQ5FoZLA1Q9SCe9SH46H72U25rAG9A/132";
	 * // String headUrl =
	 * "http://pic.51yuansu.com/pic3/cover/00/63/25/589bdedf5475d_610.jpg";
	 * 
	 * String nameText = "古月争取"; String cqText = "扫一扫，为我加油！"; String url =
	 * ImageUtil.drawImage(backgroundImageUrl, qrCodeImageUrl,
	 * headUrl,nameText,cqText); System.out.println("url={} "+url);
	 * 
	 * 
	 * }
	 */

	// 上传到本地
	// public static void main(String[] args) throws IOException {
	// drawImage();
	//
	// }
	@IgnoreAuth
	@RequestMapping("/testIMG")
	public void test() throws IOException {
		// 海报图
		String backgroundImageUrl = "http://47.92.209.5:8080/upload/15460848171054280132559.jpg";
		// String backgroundImageUrl =
		// "http://img1.juimg.com/171010/330841-1G01000050879.jpg";
		// 二维码
		// String qrCodeImageUrl =
		// "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1553504957130&di=02fae20a5c0f885d52299b2b1d682c86&imgtype=0&src=http%3A%2F%2Fimg.atobo.com%2FProductImg%2FEWM%2FUWeb%2F3%2F2%2F1%2F3%2F061%2F3213061%2F1.gif";
		String qrCodeImageUrl = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket=gQE18TwAAAAAAAAAAS5odHRwOi8vd2VpeGluLnFxLmNvbS9xLzAyNEhIcXBjNk1mZzExMDAwMDAwN0UAAgR-AMNcAwQAAAAA";
		// 头像
		String headUrl = "http://thirdwx.qlogo.cn/mmopen/vi_32/J8e7icsMJ9r122G4h349YdB3WewUyaICxuoqC0HsaHDOfuRibPiclcOP8mnfQ5FoZLA1Q9SCe9SH46H72U25rAG9A/132";
		// String headUrl =
		// "http://pic.51yuansu.com/pic3/cover/00/63/25/589bdedf5475d_610.jpg";

		String nameText = "古月争取";
		String cqText = "扫一扫，为我加油！";
		String url = ImageUtil.drawImage(backgroundImageUrl, qrCodeImageUrl, headUrl, nameText, cqText);
		System.out.println("url={} " + url);

	}
}

 

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