突发灵感，看到某网站的搞笑图片挺多，做了一个小java，扫描抠了一些

这里分享一下

/*** 取得文件的后缀名* @Description: TODO* @param countStr* @return*/private static String getFileExt(String fileStr){return  fileStr.substring(fileStr.lastIndexOf(".") + 1).toLowerCase();}

得到文件后缀，保存用

/*** 取得不同的页面地址* @Description: TODO* @param countStr* @return*/private static String getPagePath(String countStr){String pagPath = "http://xxx.xxxx.xxxx.xxx/thread-2:count-1-1.html";return pagPath.replaceAll(":count", countStr);}

取得页面地址

/*** 取得图片的url地址* @Description: TODO* @param contextStr* @return*/private static String getImgSrc(String contextStr){if(contextStr.indexOf("\" onload=\"thumbImg(this)\"")<0){return null;}String bigStr = contextStr.substring(contextStr.indexOf("\" onload=\"thumbImg(this)\"")-74,contextStr.indexOf("\" onload=\"thumbImg(this)\""));String imgStr = bigStr.substring(bigStr.indexOf("<img src=\"")+10);return imgStr;}

解析页面代码，将图片的url地址取出

/*** 下载图片* @param f 保存的文件* @param imgUrl 图片地址*/public static void downloadFile(File f, String imgUrl) {byte[] buffer = new byte[8 * 1024];URL u;URLConnection connection = null;try {u = new URL(imgUrl);connection = u.openConnection();} catch (Exception e) {System.out.println("ERR:" + imgUrl);return;}InputStream is = null;FileOutputStream fos = null;try {f.createNewFile();is = connection.getInputStream();fos = new FileOutputStream(f);int len = 0;while ((len = is.read(buffer)) != -1) {fos.write(buffer, 0, len);}} catch (Exception e) {e.printStackTrace();f.delete();} finally {if (fos != null) {try {fos.close();} catch (IOException e) {}}if (is != null) {try {is.close();} catch (IOException e) {}}}buffer = null;// System.gc();}

将url图片下载到本地
完整代码下载：http://download.csdn.net/detail/songylwq/4738238