struts2 using kindeditor upload pictures (including jmagic compressed images)
Project uses a kindeditor3.4
UploadContentImgAction
1 @SuppressWarnings("serial") 2 @ParentPackage("control-center") 3 public class UploadContentImgAction extends BaseAction { 4 private File up; 5 private String upFileName; 6 private String upContentType; 7 private String fileDir = "uploads/articleContentImg"; 8 private String imgTitle; 9 private String align; 10 private int imgWidth; 11 private int imgHeight; 12 13 /** 14 * kindeditor Picture upload 15 * @return 16 * @throws Exception 17 */ 18 @Action("kindeditorImgUpload") 19 public String kindeditorImgUpload() throws Exception { 20 // You can only upload pictures 21 try { 22 if(!validatePostfix(upFileName)) { 23 return "error"; 24 } 25 User user = (User)getSession().get("user"); 26 String fileRealDir = getServletContext().getRealPath(fileDir); 27 File file = up; 28 String fileRealName = createfilename(user.getUserId()); 29 String fileName = fileRealName + upFileName.substring(upFileName.lastIndexOf(".")).toLowerCase(); 30 File newFile = new File(fileRealDir, fileName); 31 FileUtils.copyFile(file, newFile); 32 // Compress pictures 33 ImageUtil.resize(newFile.getPath(), newFile.getPath(), 500); 34 String id = "contentId"; 35 String url = "/" + fileDir + "/" + fileName; 36 String border = "0"; 37 38 String result = "<script type='text/javascript'>parent.KE.plugin['image'].insert('" + id + "','" + url + "','" + imgTitle + "','" + imgHeight + "','" + imgHeight + "','" + border + "','" + align + "');</script>"; 39 40 getHttpServletResponse().getWriter().write(result); 41 } catch (RuntimeException e) { 42 // TODO Auto-generated catch block 43 e.printStackTrace(); 44 } 45 return null; 46 } 47 /** 48 * The file name generation : The current time + Random number + User ID 49 */ 50 private String createfilename(int userId) { 51 StringBuilder result = new StringBuilder(); 52 // Get the local time of the current 53 String now = DateUtil.getLongStrFromDate(new Date()); 54 // In 1000W of randomly generated numbers 55 int rand = new Random().nextInt(9999999); 56 // Get rid of - Get rid of : Get rid of the whitespace , Returns the 57 result.append(now.replace("-", "").replace(":", "").replace(" ", "")).append("_").append(rand).append("_").append(userId); 58 return result.toString(); 59 } 60 /** 61 * Verify that the suffix name should obtain from the configuration file 62 */ 63 public boolean validatePostfix(String filename) { 64 // Defines the type of the uploaded file 65 List<String> fileTypes = new ArrayList<String>(); 66 67 // Picture 68 fileTypes.add("jpg"); 69 fileTypes.add("jpeg"); 70 fileTypes.add("bmp"); 71 fileTypes.add("gif"); 72 fileTypes.add("png"); 73 74 // Get file mantissa and lowercase 75 String postfix = filename.substring(filename.lastIndexOf(".") + 1).toLowerCase(); 76 return fileTypes.contains(postfix) ? true : false; 77 } 78 public File getUp() { 79 return up; 80 } 81 82 public void setUp(File up) { 83 this.up = up; 84 } 85 86 public String getUpFileName() { 87 return upFileName; 88 } 89 90 public void setUpFileName(String upFileName) { 91 this.upFileName = upFileName; 92 } 93 94 public String getUpContentType() { 95 return upContentType; 96 } 97 98 public void setUpContentType(String upContentType) { 99 this.upContentType = upContentType; 100 } 101 102 public String getImgTitle() { 103 return imgTitle; 104 } 105 106 public void setImgTitle(String imgTitle) { 107 this.imgTitle = imgTitle; 108 } 109 110 public int getImgWidth() { 111 return imgWidth; 112 } 113 114 public void setImgWidth(int imgWidth) { 115 this.imgWidth = imgWidth; 116 } 117 118 public int getImgHeight() { 119 return imgHeight; 120 } 121 122 public void setImgHeight(int imgHeight) { 123 this.imgHeight = imgHeight; 124 } 125 126 public String getAlign() { 127 return align; 128 } 129 130 public void setAlign(String align) { 131 this.align = align; 132 } 133 }
ImageUitl
1 package com.yancheng.myframe.util; 2 3 import java.awt.AlphaComposite; 4 import java.awt.Color; 5 import java.awt.Font; 6 import java.awt.Graphics2D; 7 import java.awt.Image; 8 import java.awt.geom.AffineTransform; 9 import java.awt.image.AffineTransformOp; 10 import java.awt.image.BufferedImage; 11 import java.io.File; 12 import java.io.FileOutputStream; 13 import java.io.IOException; 14 import javax.imageio.ImageIO; 15 import magick.ImageInfo; 16 import magick.MagickImage; 17 import com.sun.image.codec.jpeg.JPEGCodec; 18 import com.sun.image.codec.jpeg.JPEGImageEncoder; 19 20 /** 21 * @author 22 * 23 */ 24 public class ImageUtil { 25 26 public final static int PHOTO_RATIO = 800; // Scaling the picture coefficient 27 static{ 28 System.setProperty("jmagick.systemclassloader", "no"); 29 } 30 /** 31 * Picture watermark 32 * 33 * @param pressImg Watermark picture 34 * @param targetImg Target picture 35 * @param x Fixed value defaults in the Middle 36 * @param y Fixed value defaults in the Middle 37 * @param alpha Transparency 38 */ 39 public final static void pressImage(String pressImg, String targetImg, 40 int x, int y, float alpha) { 41 try { 42 File img = new File(targetImg); 43 Image src = ImageIO.read(img); 44 int wideth = src.getWidth(null); 45 int height = src.getHeight(null); 46 BufferedImage image = new BufferedImage(wideth, height, 47 BufferedImage.TYPE_INT_RGB); 48 Graphics2D g = image.createGraphics(); 49 g.drawImage(src, 0, 0, wideth, height, null); 50 // The watermark file 51 Image src_biao = ImageIO.read(new File(pressImg)); 52 int wideth_biao = src_biao.getWidth(null); 53 int height_biao = src_biao.getHeight(null); 54 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 55 alpha)); 56 g.drawImage(src_biao, (wideth - wideth_biao) / 2, 57 (height - height_biao) / 2, wideth_biao, height_biao, null); 58 // At the end of the watermark file 59 g.dispose(); 60 ImageIO.write((BufferedImage) image, "jpg", img); 61 } catch (Exception e) { 62 e.printStackTrace(); 63 } 64 } 65 66 /** 67 * Text watermark 68 * 69 * @param pressText Watermark text 70 * @param targetImg Target picture 71 * @param fontName Font name 72 * @param fontStyle Font style 73 * @param color Font color 74 * @param fontSize Font size 75 * @param x Correction value 76 * @param y Correction value 77 * @param alpha Transparency 78 */ 79 public static void pressText(String pressText, String targetImg, String fontName, int fontStyle, Color color, int fontSize, int x, 80 int y, float alpha) { 81 try { 82 File img = new File(targetImg); 83 Image src = ImageIO.read(img); 84 int width = src.getWidth(null); 85 int height = src.getHeight(null); 86 BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); 87 Graphics2D g = image.createGraphics(); 88 g.drawImage(src, 0, 0, width, height, null); 89 g.setColor(color); 90 g.setFont(new Font(fontName, fontStyle, fontSize)); 91 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha)); 92 g.drawString(pressText, (width - (getLength(pressText) * fontSize)) / 2 + x, (height - fontSize) / 2 + y); 93 g.dispose(); 94 ImageIO.write((BufferedImage) image, "jpg", img); 95 } catch (Exception e) { 96 e.printStackTrace(); 97 } 98 } 99 100 /** 101 * Zoom effects poor ps : Graphics The following are the AffineTransform under 102 * Zoom is for " Graphics " Instead of " Image " So after the picture is not clear 103 * @param filePath The path to the picture 104 * @param height Height 105 * @param width Width 106 * @param bb The ratio is not environmentally friendly farming is required when the 107 */ 108 public static void resizeImgcale(String filePath, int height, int width, boolean bb) { 109 try { 110 double ratio = 0.0; // Scaling 111 File f = new File(filePath); 112 BufferedImage bi = ImageIO.read(f); 113 Image itemp = bi.getScaledInstance(width, height, bi.SCALE_SMOOTH); 114 // Calculate the ratio 115 if ((bi.getHeight() > height) || (bi.getWidth() > width)) { 116 if (bi.getHeight() > bi.getWidth()) { 117 ratio = (new Integer(height)).doubleValue() / bi.getHeight(); 118 } else { 119 ratio = (new Integer(width)).doubleValue() / bi.getWidth(); 120 } 121 AffineTransformOp op = new AffineTransformOp(AffineTransform.getScaleInstance(ratio, ratio), null); 122 itemp = op.filter(bi, null); 123 } 124 if (bb) { 125 BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); 126 Graphics2D g = image.createGraphics(); 127 g.setColor(Color.white); 128 g.fillRect(0, 0, width, height); 129 if (width == itemp.getWidth(null)) 130 g.drawImage(itemp, 0, (height - itemp.getHeight(null)) / 2, 131 itemp.getWidth(null), itemp.getHeight(null), 132 Color.white, null); 133 else 134 g.drawImage(itemp, (width - itemp.getWidth(null)) / 2, 0, 135 itemp.getWidth(null), itemp.getHeight(null), 136 Color.white, null); 137 g.dispose(); 138 itemp = image; 139 } 140 ImageIO.write((BufferedImage) itemp, "jpg", f); 141 } catch (IOException e) { 142 e.printStackTrace(); 143 } 144 } 145 146 /** 147 * Calculates the length of the word 148 * 149 * @param text 150 * @return 151 */ 152 public static int getLength(String text) { 153 int length = 0; 154 for (int i = 0; i < text.length(); i++) { 155 if (new String(text.charAt(i) + "").getBytes().length > 1) { 156 length += 2; 157 } else { 158 length += 1; 159 } 160 } 161 return length / 2; 162 } 163 164 /** 165 * Compress pictures 166 * 167 * @param imgsrc Source file 168 * @param imgdist The target file 169 * @param widthdist Width 170 * @param heightdist High 171 */ 172 public static void resizeImg(String imgsrc, String imgdist, int widthdist, int heightdist) { 173 try { 174 File srcfile = new File(imgsrc); 175 if (!srcfile.exists()) { 176 return; 177 } 178 Image src = javax.imageio.ImageIO.read(srcfile); 179 BufferedImage tag = new BufferedImage(widthdist, heightdist, BufferedImage.TYPE_INT_RGB); 180 /* 181 * SCALE_SMOOTH Smooth SCALE: dimensions _AREA_AVERAGING : Scale area average SCALE _FAST : Scale fast 182 * SCALE_REPLICATE :-Scale replication 183 */ 184 tag.getGraphics().drawImage(src.getScaledInstance(widthdist, heightdist, Image.SCALE_SMOOTH), 0, 0, null); 185 FileOutputStream out = new FileOutputStream(imgdist); 186 JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 187 encoder.encode(tag); 188 out.close(); 189 } catch (IOException ex) { 190 ex.printStackTrace(); 191 } 192 } 193 194 /** 195 * Picture compression 196 * @param picFrom 197 * @param picTo 198 * @param widthdist 199 * @param heightdist 200 */ 201 public static void resize(String picFrom, String picTo, int widthdist, int heightdist) { 202 try { 203 ImageInfo info = new ImageInfo(picFrom); 204 MagickImage image = new MagickImage(new ImageInfo(picFrom)); 205 MagickImage scaled = image.scaleImage(widthdist, heightdist);// The small size of the picture file . 206 scaled.setFileName(picTo); 207 scaled.writeImage(info); 208 } catch (Exception ex) { 209 ex.printStackTrace(); 210 } 211 } 212 213 public static void resize(String picFrom, String picTo, int ratio) throws Exception { 214 BufferedImage bi = ImageIO.read(new File(picFrom)); 215 // The original picture properties 216 int srcWidth = bi.getWidth(); 217 int srcHeight = bi.getHeight(); 218 // Generate picture properties 219 int newWidth = srcWidth; 220 int newHeight = srcHeight; 221 // If you exceed the maximum width or height is compressed 222 if (srcWidth > ratio || newHeight > ratio) { 223 // Generate picture width , height Calculation 224 if (srcWidth >= srcHeight) { 225 if (srcWidth < ratio) { 226 return; 227 } 228 newWidth = ratio; 229 newHeight = (int)(ratio * srcHeight / srcWidth); 230 } else { 231 if (srcHeight < ratio) { 232 return; 233 } 234 newHeight = ratio; 235 newWidth = (int)(ratio * srcWidth / srcHeight); 236 } 237 } 238 resize(picFrom, picTo, newWidth, newHeight); 239 } 240 241 public static void resize(String picFrom, String picTo) throws Exception { 242 resize(picFrom, picTo, PHOTO_RATIO); 243 } 244 245 public static void main(String[] args) throws Exception { 246 // resizeImg("d:/411766.jpg", "d:/411766_1.jpg", 800, 600); 247 // resize("d:/test_4.jpg", "d:/test_4_2.jpg", 800); 248 pressText(" Joy and the damned ", "d:/411766.jpg", " Simplified Chinese ", Font.ITALIC, Color.black, 90, 40, 80, 0.5f); 249 } 250 251 }
