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让你的JSP支持Ubbcode

摘要: 让你的JSP支持Ubbcode

1. import java.util.regex.*;//导入正则表达式包中的类
3. /**
4. * 使网页支持ubbcode.
5. * @author shanwei
6. * @version 1.0
7. */
9. public final class Ubbcode {
11. private static final String ImagePath = "images/"; //定义图片路径
12. private static final String emotImagePath = "images/emot/";
14. /**
15. * @description 转换代码，使之支持ubbcode.
16. * @param strContent 转换前的代码.
17. * @return result 转换后的内容.
18. */
19. public static String UBBCode(String strContent) { //
20. strContent = dvHTMLEncode(strContent);
21. strContent = FilterJS(strContent);
22. String re;
23. //re.IgnoreCase =true
24. //re.Global=True
25. Pattern pattern = null; //
26. Matcher matcher = null;
27. //转换IMG
28. re = "\\[IMG\\](http|https|ftp):\\/\\/(.[^\\[]*)\\[\\/IMG\\]";
29. pattern = Pattern.compile(re);
30. matcher = pattern.matcher(strContent);
31. strContent = matcher.replaceAll("screen.width-333)this.width=screen.width-333\">");
32. //转换UPLOAD
33. re = "\\[UPLOAD=(gif|jpg|jpeg|bmp|png)\\](.[^\\[]*)(gif|jpg|jpeg|bmp|png)\\[\\/UPLOAD\\]";
34. pattern = Pattern.compile(re);
35. matcher = pattern.matcher(strContent);
36. strContent = matcher.replaceAll("
    此主题相关图片如下：
    screen.width-333)this.width=screen.width-333\">");
37. re = "\\[UPLOAD=(.[^\\[]*)\\](.[^\\[]*)\\[\\/UPLOAD\\]";
38. pattern = Pattern.compile(re);
39. matcher = pattern.matcher(strContent);
40. strContent = matcher.replaceAll("
    
41. "$1.gif\" border=0> 点击浏览该文件");
42. //转换DIR
43. re = "\\[DIR=*([0-9]*),*([0-9]*)\\](.[^\\[]*)\\[\\/DIR]";
44. pattern = Pattern.compile(re);
45. matcher = pattern.matcher(strContent);
46. strContent = matcher.replaceAll("");
47. //转换QT
48. re = "\\[QT=*([0-9]*),*([0-9]*)\\](.[^\\[]*)\\[\\/QT]";
49. pattern = Pattern.compile(re);
50. matcher = pattern.matcher(strContent);
51. strContent = matcher.replaceAll(";");
52. //转换MP
53. re = "\\[MP=*([0-9]*),*([0-9]*)\\](.[^\\[]*)\\[\\/MP]";
54. pattern = Pattern.compile(re);
55. matcher = pattern.matcher(strContent);
56. strContent = matcher.replaceAll("");
57. //转换RM
58. re = "\\[RM=*([0-9]*),*([0-9]*)\\](.[^\\[]*)\\[\\/RM]";
59. pattern = Pattern.compile(re);
60. matcher = pattern.matcher(strContent);
61. strContent = matcher.replaceAll("
    ");
62. //转换FLASH
63. re = "(\\[FLASH\\])(.[^\\[]*)(\\[\\/FLASH\\])";
64. pattern = Pattern.compile(re);
65. matcher = pattern.matcher(strContent);
66. strContent = matcher.replaceAll(
67. "[全屏欣赏]
    ");
68. re = "(\\[FLASH=*([0-9]*),*([0-9]*)\\])(.[^\\[]*)(\\[\\/FLASH\\])";
69. pattern = Pattern.compile(re);
70. matcher = pattern.matcher(strContent);
71. strContent = matcher.replaceAll(
72. "[全屏欣赏]
    ");
73. //转换URL
74. re = "(\\[URL\\])(.[^\\[]*)(\\[\\/URL\\])";
75. pattern = Pattern.compile(re);
76. matcher = pattern.matcher(strContent);
77. strContent = matcher.replaceAll("$2");
78. re = "(\\[URL=(.[^\\[]*)\\])(.[^\\[]*)(\\[\\/URL\\])";
79. pattern = Pattern.compile(re);
80. matcher = pattern.matcher(strContent);
81. strContent = matcher.replaceAll("$3");
82. //转换EMAIL
83. re = "(\\[EMAIL\\])(\\S+\\@.[^\\[]*)(\\[\\/EMAIL\\])";
84. pattern = Pattern.compile(re);
85. matcher = pattern.matcher(strContent);
86. strContent = matcher.replaceAll("
87. ImagePath +
88. "email1.gif\">$2");
89. re = "(\\[EMAIL=(\\S+\\@.[^\\[]*)\\])(.[^\\[]*)(\\[\\/EMAIL\\])";
90. pattern = Pattern.compile(re);
91. matcher = pattern.matcher(strContent);
92. strContent = matcher.replaceAll("
93. ImagePath +
94. "email1.gif\">$3");
96. //自动识别网址
97. re =
98. "^((http|https|ftp|rtsp|mms):(\\/\\/|\\\\)[A-Za-z0-9\\./=\\?%\\-&_~`@':+!]+)";
99. pattern = Pattern.compile(re);
100. matcher = pattern.matcher(strContent);
101. strContent = matcher.replaceAll(
102. "$1");
103. re =
104. "((http|https|ftp|rtsp|mms):(\\/\\/|\\\\)[A-Za-z0-9\\./=\\?%\\-&_~`@':+!]+)$";
105. pattern = Pattern.compile(re);
106. matcher = pattern.matcher(strContent);
107. strContent = matcher.replaceAll(
108. "$1");
109. re = "([^>=\"])((http|https|ftp|rtsp|mms):(\\/\\/|\\\\)[A-Za-z0-9\\./=\\?%\\-&_~`@':+!]+)";
110. pattern = Pattern.compile(re);
111. matcher = pattern.matcher(strContent);
112. strContent = matcher.replaceAll("$1$2");
114. //自动识别www等开头的网址
115. re = "([^(http://|http:\\\\)])((www|cn)[.](\\w)+[.]{1,}(net|com|cn|org|cc)(((\\/[\\~]*|\\[\\~]*)(\\w)+)|[.](\\w)+)*(((([?](\\w)+){1}[=]*))*((\\w)+){1}([\\&](\\w)+[\\=](\\w)+)*)*)";
116. pattern = Pattern.compile(re);
117. matcher = pattern.matcher(strContent);
118. strContent = matcher.replaceAll("$2");
120. //自动识别Email地址，如打开本功能在浏览内容很多的帖子会引起服务器停顿
121. re = "([^(=)])((\\w)+[@]{1}((\\w)+[.]){1,3}(\\w)+)";
122. pattern = Pattern.compile(re);
123. matcher = pattern.matcher(strContent);
124. strContent = matcher.replaceAll("$2");
125. //转换EM
126. re = "\\[em(.[^\\[]*)\\]";
127. pattern = Pattern.compile(re);
128. matcher = pattern.matcher(strContent);
129. strContent = matcher.replaceAll("
130. "em$1.gif\" border=0 align=middle>");
131. //转换HTML
132. re = "\\[HTML\\](.[^\\[]*)\\[\\/HTML\\]";
133. pattern = Pattern.compile(re);
134. matcher = pattern.matcher(strContent);
135. strContent = matcher.replaceAll("<table width='100%' border='0' cellspacing='0' cellpadding='6' class=tableborder1><td>以下内容为程序代码:
     $1</td></table>");
136. //转换CODE
137. re = "\\[code\\](.[^\\[]*)\\[\\/code\\]";
138. pattern = Pattern.compile(re);
139. matcher = pattern.matcher(strContent);
140. strContent = matcher.replaceAll("<table width='100%' border='0' cellspacing='0' cellpadding='6' class=tableborder1><td>以下内容为程序代码:
     $1</td></table>");
141. //转换COLOR
142. re = "\\[color=(.[^\\[]*)\\](.[^\\[]*)\\[\\/color\\]";
143. pattern = Pattern.compile(re);
144. matcher = pattern.matcher(strContent);
145. strContent = matcher.replaceAll("$2");
146. //转换FACE
147. re = "\\[face=(.[^\\[]*)\\](.[^\\[]*)\\[\\/face\\]";
148. pattern = Pattern.compile(re);
149. matcher = pattern.matcher(strContent);
150. strContent = matcher.replaceAll("$2");
151. //转换ALIGN
152. re = "\\[align=(center|left|right)\\](.*)\\[\\/align\\]";
153. pattern = Pattern.compile(re);
154. matcher = pattern.matcher(strContent);
155. strContent = matcher.replaceAll("
     $2
     ");
156. //转换QUOTE
157. re = "\\[QUOTE\\](.*)\\[\\/QUOTE\\]";
158. pattern = Pattern.compile(re);
159. matcher = pattern.matcher(strContent);
160. strContent = matcher.replaceAll("<table style=\"width:80%\" cellpadding=5 cellspacing=1 class=tableborder1><tr><td class=tableborder1>$1</td></tr></table>
     ");
161. //转换FLY
162. re = "\\[fly\\](.*)\\[\\/fly\\]";
163. pattern = Pattern.compile(re);
164. matcher = pattern.matcher(strContent);
165. strContent = matcher.replaceAll(
166. "$1");
167. //转换MOVE
168. re = "\\[move\\](.*)\\[\\/move\\]";
169. pattern = Pattern.compile(re);
170. matcher = pattern.matcher(strContent);
171. strContent = matcher.replaceAll("$1");
172. //转换GLOW
173. re =
174. "\\[GLOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)\\](.[^\\[]*)\\[\\/GLOW]";
175. pattern = Pattern.compile(re);
176. matcher = pattern.matcher(strContent);
177. strContent = matcher.replaceAll(
178. "<table width=$1 style=\"filter:glow(color=$2, strength=$3)\">$4</table>");
179. //转换SHADOW
180. re =
181. "\\[SHADOW=*([0-9]*),*(#*[a-z0-9]*),*([0-9]*)\\](.[^\\[]*)\\[\\/SHADOW]";
182. pattern = Pattern.compile(re);
183. matcher = pattern.matcher(strContent);
184. strContent = matcher.replaceAll(
185. "<table width=$1 style=\"filter:shadow(color=$2, strength=$3)\">$4</table>");
187. re = "\\[i\\](.[^\\[]*)\\[\\/i\\]";
188. pattern = Pattern.compile(re);
189. matcher = pattern.matcher(strContent);
190. strContent = matcher.replaceAll("$1");
191. re = "\\[u\\](.[^\\[]*)(\\[\\/u\\])";
192. pattern = Pattern.compile(re);
193. matcher = pattern.matcher(strContent);
194. strContent = matcher.replaceAll("$1");
195. re = "\\[b\\](.[^\\[]*)(\\[\\/b\\])";
196. pattern = Pattern.compile(re);
197. matcher = pattern.matcher(strContent);
198. strContent = matcher.replaceAll("$1");
199. re = "\\[size=([1-4])\\](.[^\\[]*)\\[\\/size\\]";
200. pattern = Pattern.compile(re);
201. matcher = pattern.matcher(strContent);
202. strContent = matcher.replaceAll("$2");
203. /*re ="(\\s)";
204. matcher = pattern.matcher(strContent);
205. strContent=matcher.replaceAll("$1");*/
206. re = null;
207. return strContent;
208. }
210. /**
211. * 过滤javascript代码.
212. * @param v转换前的代码.
213. * @return v转换后的内容.
214. */
216. public static String FilterJS(String v) {
217. if (!v.equals("null") && v != null) {
218. String t, re;
219. re = "(javascript)";
220. t = re.replace(v, "javascript");
221. re = "(jscript:)";
222. t = re.replace(t, "jscript:");
223. re = "(js:)";
224. t = re.replace(t, "js:");
225. re = "(value)";
226. t = re.replace(t, "value");
227. re = "(about:)";
228. t = re.replace(t, "about:");
229. re = "(file:)";
230. t = re.replace(t, "file:");
231. re = "(document.cookie)";
232. t = re.replace(t, "documents.cookie");
233. re = "(vbscript:)";
234. t = re.replace(t, "vbscript:");
235. re = "(vbs:)";
236. t = re.replace(t, "vbs:");
237. re = "(on(mouse|exit|error|click|key))";
238. t = re.replace(t, "on$2");
239. re = "(&#)";
240. t = re.replace(t, "＆#");
241. re = null;
242. }
243. return v;
244. }
246. /**
247. * 替换一些特殊符号为html语法标记.
248. * @param fString转换前的代码.
249. * @return fString转换后的内容.
250. */
252. 　public static String dvHTMLEncode(String fString) {
253. if (!fString.equals("null") && fString != null) {
254. fString = replace(fString, ">", ">");
255. fString = replace(fString, "<", "<");
256. fString = replace(fString, "&", "&");
257. fString = replace(fString, " ", " ");
258. fString = replace(fString, "\"", """);
259. fString = replace(fString, "\'", "'");
260. fString = replace(fString, "\r", "");
261. fString = replace(fString, "\n", "
     ");
262. fString = replace(fString, "\\", "\");
263. }
264. return fString;
265. }
267. /**
268. * html语法标记转换符号本身.
269. * @param fString转换前的代码.
270. * @return fString转换后的内容.
271. */
273. public static String dvHTMLCode(String fString) {
274. if (!fString.equals("null") && fString != null) {
275. fString = replace(fString, ">", ">");
276. fString = replace(fString, "<", "<");
277. fString = replace(fString, "&", "&");
278. fString = replace(fString, " ", " ");
279. fString = replace(fString, """, "\"");
280. fString = replace(fString, "'", "\'");
281. fString = replace(fString, "\", "\\");
282. fString = replace(fString, "
     ", "\n");
283. }
284. return fString;
285. }
287. public static String nohtml(String str) {
288. String re;
289. Pattern pattern = null;
290. Matcher matcher = null;
291. re = "(\\<.[^\\<]*\\>)";
292. pattern = Pattern.compile(re);
293. matcher = pattern.matcher(str);
294. str = matcher.replaceAll(" ");
295. re = "(\\<\\/[^\\<]*\\>)";
296. str = re.replace(str, " ");
297. re = null;
298. return str;
299. }
301. /**
302. * 分割函数.
303. * @param source原字符串,div将要被分割的字符串.
304. * @return returnStr分割后的字符串.
305. */
307. public static String[] split(String source, String div) {
308. int arynum = 0, intIdx = 0, intIdex = 0, div_length = div.length();
309. if (source.compareTo("") != 0) {
310. if (source.indexOf(div) != -1) {
311. intIdx = source.indexOf(div);
312. for (int intCount = 1; ; intCount++) {
313. if (source.indexOf(div, intIdx + div_length) != -1) {
314. intIdx = source.indexOf(div, intIdx + div_length);
315. arynum = intCount;
316. } else {
317. arynum += 2;
318. break;
319. }
320. }
321. } else {
322. arynum = 1;
323. }
324. } else {
325. arynum = 0;
327. }
328. intIdx = 0;
329. intIdex = 0;
330. String[] returnStr = new String[arynum];
332. 　　if (source.compareTo("") != 0) {
333. if (source.indexOf(div) != -1) {
334. intIdx = (int) source.indexOf(div);
335. returnStr[0] = (String) source.substring(0, intIdx);
336. for (int intCount = 1; ; intCount++) {
337. if (source.indexOf(div, intIdx + div_length) != -1) {
338. intIdex = (int) source.indexOf(div, intIdx + div_length);
339. returnStr[intCount] = (String) source.substring(intIdx +
340. div_length,
341. intIdex);
342. intIdx = (int) source.indexOf(div, intIdx + div_length);
343. } else {
344. returnStr[intCount] = (String) source.substring(intIdx +
345. div_length,
346. source.length());
347. break;
348. }
349. }
350. } else {
351. returnStr[0] = (String) source.substring(0, source.length());
352. return returnStr;
353. }
354. } else {
355. return returnStr;
356. }
357. return returnStr;
358. }
360. /**
361. * 替换函数.
362. * @param str替换前的字符串,substr被替换的字符,restr替换的字符.
363. * @return 替换后并且经过除空处理的字符串.
364. */
365. public static String replace(String str, String substr, String restr) {
366. String[] tmp = split(str, substr);
367. String returnstr = null;
368. if (tmp.length != 0) {
369. returnstr = tmp[0];
370. for (int i = 0; i < tmp.length - 1; i++) {
371. returnstr = dealNull(returnstr) + restr + tmp[i + 1];
372. }
373. }
374. return dealNull(returnstr);
375. }
377. /**
378. * 除空处理函数.
379. * @param str原字符串.
380. * @return 处理后的字符串.
381. */
382. public static String dealNull(String str) {
383. String returnstr = null;
384. if (str == null) {
385. returnstr = "";
386. } else {
387. returnstr = str;
388. }
389. return returnstr;
390. }
392. public static String tostring(Character i) {
393. Character c = i;
394. return c.toString();
395. }
397. }

引自:http://www.javaresearch.org/article/showarticle.jsp?column=106&thread=51550