Regularly obtain screenshots of the target machine in CentOS

Regularly obtain the screen of the target machine in CentOS

1. Add a scheduled task

Crontab-l

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1. */1 ***** sh/home/aaron/run. sh>/home/aaron/cron. log2> & 1

2. cat/home/aaron/run. sh

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1. #! /Bin/sh
3. # Cd/home/aaron
4. # CLASSPATH = $ CLASSPATH:/home/aaron/. gradle/cache/com. google. zxing/core/jars/core-3.2.1.jar
5. # CLASSPATH = $ CLASSPATH:/home/aaron/. gradle/cache/com. google. zxing/javase/jars/javase-3.2.1.jar
6. # CLASSPATH = $ CLASSPATH:/home/aaron/. gradle/cache/commons-lang/jars/commons-lang-2.6.jar
7. # CLASSPATH = $ CLASSPATH:/home/aaron/. gradle/cache/joda-time/jars/joda-time-1.6.2.jar
9. # ExportCLASSPATH
10. # ExportDISPLAY =: 0
11. # Java =/home/aaron/soft/jdk1.8.0/bin/java
12. # $ Javacom/aaron/my/resources/Test
14. ImageDir =/tmp/images
16. Pre_check (){
17. If [! -D "$ imageDir"]; then
18. Mkdir-p "$ imageDir"
19. Fi
20. }
22. Pre_check
24. # CommandStr = "/tmp/tool/client. sh; cd $ imageDir; ls"
26. # Destination ssh host $ commandStr> t.txt
28. #Forxin((catt.txt)
29. # Do
30. # Scpuser @ host:/tmp/images/$ x/tmp/images
31. # Ssh target host "rm $ imageDir/$ x"
32. # Done

3. Place the following information on the target machine

Cat/tmp/tool/client. sh

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1. #! /Bin/sh
3. ImageDir =/tmp/images
4. BaseDir =$ (cd $ (dirname $0); pwd)
6. Pre_check (){
7. If [! -D "$ imageDir"]; then
8. Mkdir-p "$ imageDir"
9. Fi
10. }
12. Pre_check
14. CLASSPATH = $ CLASSPATH: $ baseDir/core-3.2.1.jar
15. CLASSPATH = $ CLASSPATH: $ baseDir/javase-3.2.1.jar
16. CLASSPATH = $ CLASSPATH: $ baseDir/commons-lang-2.6.jar
17. CLASSPATH = $ CLASSPATH: $ baseDir/joda-time-1.6.2.jar
19. ExportCLASSPATH
20. ExportDISPLAY =: 0
21. Cd $ baseDir
22. Java =/home/aaron/soft/jdk1.8.0/bin/java
23. $ Javacom/aaron/my/resources/Test

For cat Test. java, refer to the snapshot method.

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1. Packagecom. aaron. my. resources;
3. Importjava. awt .*;
5. Importjava. awt. Dimension;
7. Importjava. awt. image. BufferedImage;
9. Importjava. io. File;
11. Importjava. io. IOException;
13. Importjava. nio. file. FileSystems;
15. Importjava. nio. file. Path;
17. Importjava. util. HashMap;
19. Importjava. util. Map;
21. Importjavax. imageio. ImageIO;
25. Importcom. google. gson. Gson;
27. Importcom. google. zxing .*;
29. Importcom. google. zxing. client. j2se. BufferedImageLuminanceSource;
31. Importcom. google. zxing. client. j2se. MatrixToImageWriter;
33. Importcom. google. zxing. common. BitMatrix;
35. Importcom. google. zxing. common. HybridBinarizer;
37. Importorg. apache. commons. codec. binary. Base64;
39. Importorg. apache. commons. lang. StringUtils;
41. Importorg. joda. time. DateTime;
45. PublicclassTest {
47. PrivatestaticfinalStringfromDir = "/tmp/images ";
49. PrivatestaticfinalStringtoDir = "/mnt/shared/processedQRCodes ";
51. PrivatestaticfinalStringPNG = ". png ";
53. PrivatestaticfinalintPNG_SIZE_HEIGHT = 200;
55. PrivatestaticfinalintPNG_SIZE_WIDTH = 200;
59. Publicstaticvoidmain (String [] args ){
61. Snapshot ();
63. // Filedir = newFile (fromDir );
65. // If (dir. exists () & dir. isDirectory ()){
67. // File [] files = dir. listFiles ();
69. // For (Filef: files ){
71. // If (f. isFile () & f. getName (). toLowerCase (). endsWith (PNG )){
73. // Stringres = decode (f );
75. /// System. out. println (res );
77. // If (StringUtils. isNotBlank (res )){
79. //// Movetoprocesseddir
81. // Booleanmoved = move (f, newFile (toDir + File. separator + f. getName (). substring (0, f. getName (). indexOf (". ") +" _ "+ res + PNG ));
83. // System. out. println (moved = true? "Movedtoprocesseddir.": "Can 'tmovefile:" + f. getAbsolutePath ());
85. //}
87. //}
89. //}
91. //}
93. Stringres = decode (newFile ("/mnt/shared/qrcodes/B .png "));
95. // Encode ("http://baike.baidu.com/link? Url = BP7l08ZZZa7HBLL0g4RCuVsN3BlNbuokYRKCuUk8ZexPDjxSVNMXQq_08WI1xz5EUAjVrce4qgSisos9K-mq-q ");
97. }
101. Privatestaticbooleanmove (Filef, FiletoDir ){
103. Returnf. renameTo (toDir );
105. }
109. /**
111. * Parse Images
113. */
115. PublicstaticStringdecode (Filefile ){
117. BufferedImageimage;
119. Stringres = null;
121. Try {
123. Image = ImageIO. read (file );
125. LuminanceSourcesource = newBufferedImageLuminanceSource (image );
127. Binarizerbinarizer = newHybridBinarizer (source );
129. BinaryBitmapbinaryBitmap = newBinaryBitmap (binarizer );
131. Map <DecodeHintType, Object> hints = newHashMap <DecodeHintType, Object> ();
133. // Hints. put (DecodeHintType. CHARACTER_SET, "UTF-8 ");
135. Resultresult = newMultiFormatReader (). decode (binaryBitmap, hints); // decode the image
137. StringresultStr = result. getText ();
139. // System. out. println (resultStr );
141. Stringt = resultStr. substring (resultStr. indexOf ("? ") + 3, resultStr. length ());
143. Stringbase64 = newString (Base64.decodeBase64 (t ));
145. // System. out. println (t );
147. System. out. print (base64 + "---> ");
149. DecodeResultdecodeResult = newGson (). fromJson (base64, DecodeResult. class );
151. Res = decodeResult. getD ();
153. } Catch (effectione ){
155. // Movetoprocesseddir
157. Booleanmoved = move (file, newFile (toDir + File. separator + file. getName (). substring (0, file. getName (). indexOf (". ") + (res = null? "": "_" + Res) + PNG ));
159. System. out. println (moved = true? "Exceptionhappenedandmovedtoprocesseddir.": "Can 'tmovefile:" + file. getAbsolutePath ());
161. // E. printStackTrace ();
163. }
165. Returnres;
167. }
171. Publicstaticvoidsnapshot (){
173. StringfileName = newDateTime (). toString ("yyyyMMddHHmmss ");
175. Dimensionscreensize = Toolkit. getdefatooltoolkit (). getScreenSize ();
177. Doubleh = screensize. getHeight ();
179. Doublew = screensize. getWidth ();
181. Try {
183. Robotrobot = newRobot ();
185. // BufferedImagebi = robot. createScreenCapture (newRectangle (Double. valueOf (w-PNG_SIZE_WIDTH)/2 ). intValue (), Double. valueOf (h-PNG_SIZE_HEIGHT)/2 ). intValue (), PNG_SIZE_WIDTH, PNG_SIZE_HEIGHT); // capture the screen according to the specified area
187. BufferedImagebi = robot. createScreenCapture (newRectangle (screensize); // capture the Screen Based on the specified area
189. ImageIO. write (bi, "png", newFile (fromDir + File. separator + fileName + PNG ));
191. } Catch (AWTExceptione ){
193. E. printStackTrace ();
195. } Catch (io1_tione ){
197. E. printStackTrace ();
199. }
201. }
205. Publicstaticvoidencode (Stringcontent ){
207. Intwidth = 400; // Image Width
209. Intheight = 400; // Image Height
211. Stringformat = "png"; // image type
213. Map <EncodeHintType, Object> hints = newHashMap <EncodeHintType, Object> ();
215. Hints. put (EncodeHintType. CHARACTER_SET, "UTF-8 ");
217. Try {
219. BitMatrixbitMatrix = newMultiFormatWriter (). encode (content,
221. BarcodeFormat. QR_CODE, width, height, hints); // generate a Matrix
223. Pathpath = FileSystems. getDefault (). getPath (toDir, "code.png ");
225. MatrixToImageWriter. writeToPath (bitMatrix, format, path); // output the image
227. } Catch (effectione ){
229. E. printStackTrace ();
231. }
233. }
235. }
239. ClassDecodeResult {
241. PrivateStringa;
243. PrivateStringb;
245. PrivateStringc;
247. PrivateStringd;
249. PrivateStringv;
253. PublicStringgetA (){
255. Returna;
257. }
261. PublicvoidsetA (Stringa ){
263. This. a =;
265. }
269. PublicStringgetB (){
271. Returnb;
273. }
277. PublicvoidsetB (Stringb ){
279. This. B = B;
281. }
285. PublicStringgetC (){
287. Returnc;
289. }
293. PublicvoidsetC (Stringc ){
295. This. c = c;
297. }
301. PublicStringgetD (){
303. Returnd;
305. }
309. PublicvoidsetD (Stringd ){
311. This. d = d;
313. }
317. PublicStringgetV (){
319. Returnv;
321. }
325. PublicvoidsetV (Stringv ){
327. This. v = v;
329. }
331. }