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@@ -0,0 +1,244 @@
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+package cn.com.ty.lift.business;
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+
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+import org.apache.commons.fileupload.FileItem;
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+import org.apache.commons.fileupload.FileItemFactory;
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+import org.apache.commons.fileupload.disk.DiskFileItemFactory;
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+import org.apache.commons.lang.StringUtils;
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+import org.springframework.web.multipart.MultipartFile;
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+
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+import javax.imageio.ImageIO;
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+import java.awt.*;
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+import java.awt.image.BufferedImage;
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+import java.io.*;
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+import java.net.URL;
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+import java.net.URLConnection;
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+
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+/**
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+ * @author 张凡
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+ * @create 2020-05-20 22:06
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+ **/
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+public class ImageUtil {
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+ /**
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+ * 给图片+图片水印
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+ *
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+ * @param sourceUrl --sourceUrl 源图片网络地址
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+ * @param sourceFile --sourceFile 源图片文件
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+ * @param pressImg -- 水印图片地址
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+ * @param targetImg -- 目标图片地址
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+ * @param location 水印位置：left-top：左上角，right-top：右上角，left-bottom：左下角，right-bottom：右下角
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+ * @param degree 水印旋转角度
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+ */
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+
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+ public static void pressImage(String sourceUrl, MultipartFile sourceFile, String pressImg, String targetImg, String location, Integer degree) {
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+ try {
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+ // 目标文件
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+ File _file = toFile(sourceUrl, null, sourceFile, new File(targetImg));
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+ Image src = ImageIO.read(_file);
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+ int width = src.getWidth(null);
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+ int height = src.getHeight(null);
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+ BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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+ Graphics2D g = image.createGraphics();
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+ g.drawImage(src, 0, 0, width, height, null);
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+ // 水印文件
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+ File _filebiao = new File(pressImg);
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+ Image src_biao = ImageIO.read(_filebiao);
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+ int width_biao = src_biao.getWidth(null);
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+ int height_biao = src_biao.getHeight(null);
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+ // 水印坐标
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+ int x = 0, y = 0;
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+ if (StringUtils.equals(location, "left-top")) {
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+ x += 30;
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+ y += 30;
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+ } else if (StringUtils.equals(location, "right-top")) {
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+ x = width - width_biao - 30;
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+ y += 30;
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+ } else if (StringUtils.equals(location, "left-bottom")) {
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+ y = height - height_biao - 30;
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+ x += 30;
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+ } else if (StringUtils.equals(location, "right-bottom")) {
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+ x = width - width_biao - 30;
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+ y = height - height_biao - 30;
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+ } else {
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+ x = (width - width_biao) / 2;
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+ y = (height - height_biao) / 2;
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+ }
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+ if (null != degree) {
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+ // 设置水印旋转
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+ g.rotate(Math.toRadians(degree), x, y);
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+ }
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+ g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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+ g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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+ g.drawImage(src_biao, x, y, width_biao, height_biao, null);
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+ // 水印文件结束
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+ g.dispose();
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+ //直接修改源文件
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+ FileOutputStream out = new FileOutputStream(targetImg);
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+ // JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
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+ // encoder.encode(image);
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+
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+ ImageIO.write(image, "jpg", out);
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+ out.flush();
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+ out.close();
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+ //生成新的文件
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+ //File sf = new File("D:/imgout/" + "test" + "." + "jpg");
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+ //ImageIO.write(image, "jpg", sf); // 保存图片
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ }
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+ }
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+
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+ /**
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+ * 给图片加文字水印
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+ *
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+ * @param sourceUrl 图片的网络地址
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+ * @param pressText s水印文字
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+ * @param targetImg 目标文件
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+ * @param fontName 字体名称
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+ * @param fontStyle 字体风格
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+ * @param fontSize 字体大小
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+ * @param location 字体位置:left-top：左上角，right-top：右上角，left-bottom：左下角，right-bottom：右下角
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+ */
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+ public static void pressText(String sourceUrl, String pressText, String targetImg, String fontName, int fontStyle,
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+ int fontSize, String location, Color color) {
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+ try {
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+
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+ int textWidth = getFontWidth(fontName, fontStyle, fontSize, pressText);
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+ File _file = toFile(null, sourceUrl, null, new File(targetImg));
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+ Image src = ImageIO.read(_file);
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+ int width = src.getWidth(null);
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+ int height = src.getHeight(null);
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+ BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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+ Graphics2D g = image.createGraphics();
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+ g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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+ g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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+ g.drawImage(src.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
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+ g.setColor(color);
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+ g.setFont(new Font(fontName, fontStyle, fontSize));
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+ g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
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+ 0.45f));
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+ int x = 0, y = 0;
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+ if (StringUtils.equals(location, "left-top")) {
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+ x = 30;
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+ y = 30;
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+ } else if (StringUtils.equals(location, "right-top")) {
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+ x = width - textWidth - 30;
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+ y = 30;
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+ } else if (StringUtils.equals(location, "left-bottom")) {
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+ x += 30;
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+ y = height - 30;
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+ } else if (StringUtils.equals(location, "right-bottom")) {
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+ x = width - textWidth - 30;
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+ y = height - 30;
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+ } else {
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+ x = (width - textWidth) / 2;
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+ y = (height) / 2;
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+ }
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+ g.drawString(pressText, x, y);
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+ g.dispose();
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+ FileOutputStream out = new FileOutputStream(targetImg);
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+ //JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
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+ //encoder.encode(image);
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+ ImageIO.write(image, "jpg", out);
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+ out.flush();
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+ out.close();
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+
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+
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+
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+ }
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+
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+
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+ /**
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+ * 文件保存
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+ *
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+ * @param link 图片链接
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+ * @param img 图片临时地址
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+ * @param file 存入的文件地址
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+ * @return 下载的文件
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+ */
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+ public static File toFile(String link, String img, MultipartFile imgFile, File file) {
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+ try {
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+ InputStream ins = null;
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+ if (StringUtils.isNotEmpty(link)) {
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+ URL url = new URL(link);
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+ URLConnection uri = url.openConnection();
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+ ins = uri.getInputStream();
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+ }
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+ if (StringUtils.isNotEmpty(img)) {
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+ File nl = new File(img);
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+ ins = new FileInputStream(nl);
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+ }
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+ if (img != null) {
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+ ins = imgFile.getInputStream();
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+ }
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+ //获取数据流
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+ OutputStream os = new FileOutputStream(file);
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+ int bytesRead = 0;
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+ byte[] buffer = new byte[8192];
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+ while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
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+ os.write(buffer, 0, bytesRead);
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+ }
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+ os.close();
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+ ins.close();
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+ return file;
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+ } catch (Exception e) {
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+ return null;
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+ }
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+
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+ }
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+
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+ /**
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+ * 计算文本占用的width
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+ *
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+ * @param fontName 字体名称
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+ * @param fontStyle 字体风格
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+ * @param fontSize 字体大小
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+ * @param pressText 输入文本
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+ * @return 文字所占用的宽带
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+ */
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+ public static int getFontWidth(String fontName, int fontStyle, int fontSize, String pressText) {
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+ Font f = new Font(fontName, fontStyle, fontSize);
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+ FontMetrics fm = sun.font.FontDesignMetrics.getMetrics(f);
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+ return fm.stringWidth(pressText);
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+ }
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+
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+ /*
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+ 创建FileItem
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+ */
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+ public static FileItem createFileItem(File file, String fieldName) {
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+ FileItemFactory factory = new DiskFileItemFactory(16, null);
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+ FileItem item = factory.createItem(fieldName, "text/plain", true, file.getName());
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+ int bytesRead = 0;
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+ byte[] buffer = new byte[8192];
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+ try {
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+ FileInputStream fis = new FileInputStream(file);
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+ OutputStream os = item.getOutputStream();
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+ while ((bytesRead = fis.read(buffer, 0, 8192)) != -1) {
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+ os.write(buffer, 0, bytesRead);
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+ }
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+ os.close();
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+ fis.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ return item;
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+ }
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+
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+
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+ public static void main(String[] args) {
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+ pressImage("https://ty-oss-file.oss-cn-hangzhou.aliyuncs.com/banner/banner3.png",null, "D:/项目中心/电梯/水印.png", "D:/项目中心/电梯/微信图片_20200520211441.png", "right-bottom", null);//
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+ //pressImage("D:/imgin/20181017110944.png", "D:/imgout/1.png", "right-top", null);
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+ // //pressImage("D:/imgin/20181017110944.png", "D:/imgout/1.png", "center", null);
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+ // //pressImage("D:/imgin/20181017110944.png", "D:/imgout/1.png", "left-bottom", null);
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+ // //pressImage("D:/imgin/20181017110944.png", "D:/imgout/1.png", "right-bottom", null);
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+ pressText("D:/项目中心/电梯/微信图片_20200520211441.png", "2020-05-20", "D:/项目中心/电梯/微信图片_20200520211442.png", "黑体", Font.BOLD + Font.ITALIC, 30, "left-bottom", Color.GRAY);
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+ // //getFontWidth("黑体", Font.BOLD + Font.ITALIC, 30, "miraclesgrocery");
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+ // //System.out.println(Color.RED);
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+ // //System.out.println(Color.WHITE);
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+ // //System.out.println(Color.GRAY);
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+ }
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+
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+
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+}
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黄远