【JAVA】mht文件转html
网上搜索获得mht文件转html，稍作了修改，即可使用，在此做个笔记。
public class Mht2HtmlUtil {public static void main(String[] args) {Mht2HtmlUtil.mht2html("d:\\51job_111.mht", "d:\\test.htm");}/** * 将 mht文件转换成 html文件 * * @param s_SrcMht * @param s_DescHtml */public static void mht2html(String s_SrcMht, String s_DescHtml) {try {InputStream fis = new FileInputStream(s_SrcMht);Session mailSession = Session.getDefaultInstance(System.getProperties(), null);MimeMessage msg = new MimeMessage(mailSession, fis);Object content = msg.getContent();if (content instanceof Multipart) {MimeMultipart mp = (MimeMultipart) content;MimeBodyPart bp1 = (MimeBodyPart) mp.getBodyPart(0);// 获取mht文件内容代码的编码String strEncodng = getEncoding(bp1);// 获取mht文件的内容String strText = getHtmlText(bp1, strEncodng);if (strText == null)return;// 创建以mht文件名称的文件夹，主要用来保存资源文件。File parent = null;if (mp.getCount() > 1) {parent = new File(new File(s_DescHtml).getAbsolutePath()+ ".files");parent.mkdirs();if (!parent.exists()) { // 创建文件夹失败的话则退出return;}}// FOR中代码 主要是保存资源文件及替换路径for (int i = 1; i < mp.getCount(); ++i) {MimeBodyPart bp = (MimeBodyPart) mp.getBodyPart(i);// 获取资源文件的路径// 例（获取： http://xxx.com/abc.jpg）String strUrl = getResourcesUrl(bp);if (strUrl == null || strUrl.length() == 0)continue;DataHandler dataHandler = bp.getDataHandler();MimePartDataSource source = (MimePartDataSource) dataHandler.getDataSource();// 获取资源文件的绝对路径String FilePath = parent.getAbsolutePath() + File.separator+ getName(strUrl, i);File resources = new File(FilePath);// 保存资源文件if (SaveResourcesFile(resources, bp.getInputStream())) {// 将远程地址替换为本地地址 如图片、JS、CSS样式等等strText = strText.replace(strUrl,resources.getAbsolutePath());}}// 最后保存HTML文件SaveHtml(strText, s_DescHtml, strEncodng);}} catch (Exception e) {e.printStackTrace();}}/** * 获取mht文件内容中资源文件的名称 * * @param strName * @param ID * @return */public static String getName(String strName, int ID) {char separator1 = '/';char separator2 = '\\';// 将换行替换strName = strName.replaceAll("\r\n", "");// 获取文件名称if (strName.lastIndexOf(separator1) >= 0) {return strName.substring(strName.lastIndexOf(separator1) + 1);}if (strName.lastIndexOf(separator2) >= 0) {return strName.substring(strName.lastIndexOf(separator2) + 1);}return "";}/** * 将提取出来的html内容写入保存的路径中。 * * @param strText * @param strHtml * @param strEncodng */public static boolean SaveHtml(String s_HtmlTxt, String s_HtmlPath,String s_Encode) {try {Writer out = null;out = new OutputStreamWriter(new FileOutputStream(s_HtmlPath, false), s_Encode);out.write(s_HtmlTxt);out.close();} catch (Exception e) {return false;}return true;}/** * 保存网页中的JS、图片、CSS样式等资源文件 * * @param SrcFile * 源文件 * @param inputStream * 输入流 * @return */private static boolean SaveResourcesFile(File SrcFile,InputStream inputStream) {if (SrcFile == null || inputStream == null) {return false;}BufferedInputStream in = null;FileOutputStream fio = null;BufferedOutputStream osw = null;try {in = new BufferedInputStream(inputStream);fio = new FileOutputStream(SrcFile);osw = new BufferedOutputStream(new DataOutputStream(fio));int index = 0;byte[] a = new byte[1024];while ((index = in.read(a)) != -1) {osw.write(a, 0, index);}osw.flush();return true;} catch (Exception e) {e.printStackTrace();return false;} finally {try {if (osw != null)osw.close();if (fio != null)fio.close();if (in != null)in.close();if (inputStream != null)inputStream.close();} catch (Exception e) {e.printStackTrace();return false;}}}/** * 获取mht文件里资源文件的URL路径 * * @param bp * @return */private static String getResourcesUrl(MimeBodyPart bp) {if (bp == null) {return null;}try {Enumeration list = bp.getAllHeaders();while (list.hasMoreElements()) {javax.mail.Header head = (javax.mail.Header) list.nextElement();if (head.getName().compareTo("Content-Location") == 0) {return head.getValue();}}return null;} catch (MessagingException e) {return null;}}/** * 获取mht文件中的内容代码 * * @param bp * @param strEncoding * 该mht文件的编码 * @return */private static String getHtmlText(MimeBodyPart bp, String strEncoding) {InputStream textStream = null;BufferedInputStream buff = null;BufferedReader br = null;Reader r = null;try {textStream = bp.getInputStream();buff = new BufferedInputStream(textStream);r = new InputStreamReader(buff, strEncoding);br = new BufferedReader(r);StringBuffer strHtml = new StringBuffer("");String strLine = null;while ((strLine = br.readLine()) != null) {System.out.println(strLine);strHtml.append(strLine + "\r\n");}br.close();r.close();textStream.close();return strHtml.toString();} catch (Exception e) {e.printStackTrace();} finally {try {if (br != null)br.close();if (buff != null)buff.close();if (textStream != null)textStream.close();} catch (Exception e) {}}return null;}/** * 获取mht网页文件中内容代码的编码 * * @param bp * @return */private static String getEncoding(MimeBodyPart bp) {if (bp == null) {return null;}try {Enumeration list = bp.getAllHeaders();while (list.hasMoreElements()) {javax.mail.Header head = (javax.mail.Header) list.nextElement();if (head.getName().equalsIgnoreCase("Content-Type")) {String strType = head.getValue();int pos = strType.indexOf("charset=");if (pos >= 0) {String strEncoding = strType.substring(pos + 8,strType.length());if (strEncoding.startsWith(""")|| strEncoding.startsWith("\'")) {strEncoding = strEncoding.substring(1,strEncoding.length());}if (strEncoding.endsWith(""")|| strEncoding.endsWith("\'")) {strEncoding = strEncoding.substring(0,strEncoding.length() - 1);}if (strEncoding.toLowerCase().compareTo("gb2312") == 0) {strEncoding = "gbk";}return strEncoding;}}}} catch (MessagingException e) {e.printStackTrace();}return null;}}?