1. import java.awt.AlphaComposite;
2. import java.awt.Color;
3. import java.awt.Font;
4. import java.awt.Graphics2D;
5. import java.awt.Image;
6. import AffineTransform;
7. import java.awt.image.AffineTransformOp;
8. import java.awt.image.BufferedImage;
9. import java.io.BufferedInputStream;
10. import java.io.BufferedOutputStream;
11. import java.io.File;
12. import java.io.FileInputStream;
13. import java.io.FileNotFoundException;
14. import java.io.FileOutputStream;
15. import java.io.IOException;
16. import java.io.InputStream;
17. import java.io.OutputStream;
18. import java.util.Date;
19.
20. import javax.imageio.ImageIO;
21.
22. import org.apachemons.logging.Log;
23. import org.apachemons.logging.LogFactory;
24. import org.apache.struts2.ServletActionContext;
25.
26. import com.opensymphony.xwork2.ActionSupport;
27. import com.dec.jpeg.JPEGCodec;
28. import com.dec.jpeg.JPEGImageEncoder;
29.
30. public class ImageAction extends ActionSupport {
31.
32. /**
33. * 图片上传、缩放、文字水印、图片水印
34. */
35. private static final long serialVersionUID = -8982586906724587883L;
36.
37. private Log log = Log(getClass());
38.
39. private static final int BUFFER_SIZE = 16 * 1024;
40.
41. private static final String TEXT_TITLE = "文字水印";
42.
43. private static final String WATER_IMG_NAME = "rzx.gif";
44.
45. // 输入参数：上传过来的文件路径
46. private File file;
47.
48. /**
49. * 输入参数：文件名称 由struts的默认赋值，注意setter的写法:file+fileName
50. */
51. private String fileName;
52.
53. /**
54. * 输入参数 由struts的默认赋值，注意setter的写法:file+contentType
55. */
56. private String contentType;
57.
58. // 输出参数
59. private String imageFileName;
60.
61. // 输出参数：原图保存路径
62. private String ipath;
63.
64. // 输出参数：缩略图保存路径
65. private String imgPath;
66.
67. // 输出参数
68. private String json;
69.
70. public ImageAction() {
71.
72. }
73.
74. @Override
75. public String execute() throws Exception {
76. return uploadImage();
77. }
78.
79. /**
80. * 得到文件名称
81. *
82. * @param fileName
83. * @return
84. */
85. private String getExtention(String fileName) {
86. int pos = fileName.lastIndexOf(".");
87. return fileN
ame.substring(pos);
88. }
89.
90. /**
91. * 拷贝
92. *
93. * @param file
94. * @param imageFile
95. * @throws Exception
96. */
97. private void copy(File src, File dist) throws Exception {
98. log.debug("[src]--" + src);
99. log.debug("[dist]--" + dist);
100.
101. try {
102. InputStream in = null;
103. OutputStream out = null;
104. try {
105. in = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE);
106. out = new BufferedOutputStream(new FileOutputStream(dist), BUFFER_SIZE);
107.
108. byte[] buf = new byte[BUFFER_SIZE];
109. while (in.read(buf) > 0) {
110. out.write(buf);
111. }
112. out.close();
113. in.close();
114. } catch (FileNotFoundException e) {
115. e.printStackTrace();
116. } catch (IOException e) {
117. e.printStackTrace();
118. } finally {
119. if (in != null)
120. in.close();
121. if (out != null)
122. out.close();
123. }
124. } catch (Exception e) {
125. e.printStackTrace();
126. throw new Exception(e);
127. }
128.
129. }
130.
131. /**
132. * 图片上传
133. *
134. * @return
135. */
136. public String uploadImage() throws Exception {
137. log.debug("[file]--" + file);
138. log.debug("[file name]--" + fileName);
139. imageFileName = new Date().getTime() + getExtention(fileName);
140.
141. // 得到文件存放路径
142. log.debug("[imageFileName]--" + imageFileName);
143. String dir = ServletContext().getRealPath("/UploadImages");
144. File dirs = new File(dir);
145. if (!ists())
146. dirs.mkdir();
147.
148. // 使用原来的文件名保存图片
149. String path = dir + "/" + fileName;
150. File imageFile = new File(path);
151.
152. copy(file, imageFile);
153.
154. // 缩放
155. zoom(imageFile);
156.
157. // 给大图添加文字水印
158. // watermark(imageFile);
159. // 给大图添加图片水印，可以是gif或png格式
160. imageWaterMark(imageFile);
161.
162. // 创建子目录 得到添加水印后的图片的存储路径，子目录只能一级一级的建
163. String dist = dir + "/water";
164. File outFile = new File(dist);
165.
if (!ists())
166. outFile.mkdir();
167. File sImgpath = new File(dist + "/" + fileName);
168.
169. // 给小图添加文字水印
170. // watermark(sImgpath);
171. // 给小图添加图片水印，可以是gif或png格式
172. imageWaterMark(sImgpath);
173.
174. // 大图路径
175. ipath = "UploadImages/" + fileName;
176. // 小图路径
177. imgPath = "UploadImages/water/" + fileName;
178.
179. return SUCCESS;
180. }
181.
182. /**
183. * 缩放处理
184. *
185. * @return
186. */
187. public void zoom(File imageFile) throws Exception {
188. log.debug("[zoom][imageFile]--" + imageFile);
189. try {
190.
191. // 缩略图存放路径
192. File todir = new ServletContext().getRealPath("/UploadImages") + "/water");
193. if (!ists()) {
194. todir.mkdir();
195. }
196.
197. if (!imageFile.isFile())
198. throw new Exception(imageFile + " is not image file error in CreateThumbnail!");
199.
200. File sImg = new File(todir, fileName);
201.
202. BufferedImage Bi = ad(imageFile);
203. // 假设图片宽 高 最大为130 80，使用默认缩略算法
204. Image Itemp = Bi.getScaledInstance(130, 80, Bi.SCALE_DEFAULT);
205.
206. double Ratio = 0.0;
207. if ((Bi.getHeight() > 130) || (Bi.getWidth() > 80)) {
208. if (Bi.getHeight() > Bi.getWidth())
209. Ratio = 80.0 / Bi.getHeight();
210. else
211. Ratio = 130.0 / Bi.getWidth();
212.
213. AffineTransformOp op = new ScaleInstance(Ratio, Ratio), null);
214. Itemp = op.filter(Bi, null);
215. }
216.
217. ImageIO.write((BufferedImage) Itemp, "jpg", sImg);
218.
219. } catch (IOException e) {
220. e.printStackTrace();
221. throw new Exception(e);
222. }
223. }
224. java创建文件
225. /**
226. * 添加文字水印
227. *
228. * @return
229. * @throws Exception
230. * @throws Exception
231. */
232. public void watermark(File img) throws Exception {
233. log.debug("[watermark file name]--" + Path());
234. try {
235.
236. if (!ists()) {
237. throw new IllegalArgumentException("file not found!");
238. }
239.
240. log.debug("[watermark][img]--" + i
mg);
241.
242. // 创建一个FileInputStream对象从源图片获取数据流
243. FileInputStream sFile = new FileInputStream(img);
244.
245. // 创建一个Image对象并以源图片数据流填充
246. Image src = ad(sFile);
247.
248. // 得到源图宽
249. int width = Width(null);
250. // 得到源图长
251. int height = Height(null);
252.
253. // 创建一个BufferedImage来作为图像操作容器
254. BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
255. // 创建一个绘图环境来进行绘制图象
256. Graphics2D g = ateGraphics();
257. // 将原图像数据流载入这个BufferedImage
258. log.debug("width:" + width + " height:" + height);
259. g.drawImage(src, 0, 0, width, height, null);
260. // 设定文本字体
261. g.setFont(new Font("宋体", Font.BOLD, 28));
262. String rand = TEXT_TITLE;
263. // 设定文本颜
264. g.setColor(Color.blue);
265. // 设置透明度
266. g.Instance(AlphaComposite.SRC_ATOP, 0.5f));
267. // 向BufferedImage写入文本字符，水印在图片上的坐标
268. g.drawString(rand, width - (width - 20), height - (height - 60));
269. // 使更改生效
270. g.dispose();
271. // 创建输出文件流
272. FileOutputStream outi = new FileOutputStream(img);
273. // 创建JPEG编码对象
274. JPEGImageEncoder encodera = ateJPEGEncoder(outi);
275. // 对这个BufferedImage (image)进行JPEG编码
276. de(image);
277. // 关闭输出文件流
278. outi.close();
279. sFile.close();
280.
281. } catch (IOException e) {
282. e.printStackTrace();
283. throw new Exception(e);
284. }
285. }
286.
287. /**
288. * 添加图片水印
289. *
290. */
291. public void imageWaterMark(File imgFile) throws Exception {
292. try {
293. // 目标文件
294. Image src = ad(imgFile);
295. int wideth = Width(null);
296. int height = Height(null);
297. BufferedImage image = new BufferedImage(wideth, height, BufferedImage.TYPE_INT_RGB);
298. Graphics2D g = ateGraphics();
299. g.drawImage(src, 0, 0, wideth, height, null);
300.
301. // 水
印文件 路径
302. String waterImgPath = ServletContext().getRealPath("/UploadImages")+"/"+WATER_IMG_NAME;
303. File waterFile = new File(waterImgPath);
304. Image waterImg = ad(waterFile);
305.
306. int w_wideth = Width(null);
307. int w_height = Height(null);
308. g.Instance(AlphaComposite.SRC_ATOP, 0.5f));
309. g.drawImage(waterImg, (wideth - w_wideth) / 2, (height - w_height) / 2, w_wideth, w_height, null);
310. // 水印文件结束
311.
312. g.dispose();
313. FileOutputStream out = new FileOutputStream(imgFile);
314. JPEGImageEncoder encoder = ateJPEGEncoder(out);
315. de(image);
316. out.close();
317. } catch (Exception e) {
318. e.printStackTrace();
319. }
320. }
321.
322. public void setFile(File file) {
323. this.file = file;
324. }
325.
326. public String getIpath() {
327. return ipath;
328. }
329.
330. public void setFileFileName(String fileName) {
331. this.fileName = fileName;
332. }
333.
334. public void setImageFileName(String imageFileName) {
335. this.imageFileName = imageFileName;
336. }
337.
338. public String getJson() {
339. return json;
340. }
341.
342. public void setFileContentType(String fileContentType) {
343. tType = fileContentType;
344. }
345.
346. public String getImgPath() {
347. return imgPath;
348. }
349.
350. }
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