package com.qxueyou.scc.base.util;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.security.MessageDigest;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.regex.Pattern;
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import org.apache.commons.lang3.StringUtils;
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/**
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* Ç°Èý¸öÊôÐÔ¸ù¾Ýʵ¼Ê´æ´¢Î»ÖÃÉèÖÃ
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* @author ody.yuan
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*
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*/
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public class MyJsCssVersionUtils {
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/** web¹¤³ÌµÄ·¢²¼Â·¾¶ */
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private static String webContent = "qxueyou";
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/** web¹¤³ÌÖÐwebÎļþ¼ÐµÄ¾ø¶Ô·¾¶ D:\project\workspace_web\versioncontroller0\web\js\qxueyou.js */
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/** web¹¤³ÌÖÐwebÎļþ¼ÐµÄ¾ø¶Ô·¾¶ D:\project\workspaceStkkk\qxueyou_web\web\js\qxueyou.js */
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private static String webFileAbsolutePath = "C:" + File.separator + "workspace" + File.separator + "qxueyou_web";
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/** ɨÃèjs¡¢css¡¢htmlÎļþµÄÎļþ¼Ð¾ø¶Ô·¾¶£¬¹Ì¶¨ÉèÖÃΪwebĿ¼ */
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private static String fileScanDirec = "C:" + File.separator + "workspace" + File.separator + "qxueyou_web";
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/** Æ¥ÅähtmlÖÐÒýÈëjsÎļþ */
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private static Pattern scriptImportPattrrn = Pattern.compile("<script(.*)src(.*)</script>");
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/** Æ¥ÅähtmlÖÐÒýÈëcssÎļþ */
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private static Pattern cssImportPattrrn = Pattern.compile("<link(.*)href(.*)rel(.*)>");
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private static char hexDigits[]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
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/**
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* µÃµ½´¦Àí¹ýµÄÎļþ·¾¶Îªkey£¬Îļþmd5ֵΪvalueµÄmap
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* @param filePath Îļþ·¾¶
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* @param fileExtension ÎļþÀàÐÍ
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* @param map map
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*/
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private static void getFileMD5Map(String filePath,String fileExtension,Map<String,String> map,String version){
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readFile(filePath,fileExtension,map,version);
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}
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/**
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* µÃµ½Â·¾¶ÏµÄËùÐèÎļþºÍÎļþµÄmd5Öµ
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* @param filePath
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* @param fileExtension
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* @param map
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*/
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private static void readFile(String filePath,String fileExtension,Map<String,String> map,String version){
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File file = new File(filePath);
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if(file.isFile()){
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String fiePath = file.getAbsolutePath();
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//·ûºÏÖ¸¶¨ÀàÐÍ
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if(fiePath.endsWith(fileExtension)){
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generateMap(file,fileExtension,map,version);
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}
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}else if(file.isDirectory()){
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String[] fileList = file.list();
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for(String name : fileList){
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readFile(filePath + File.separator + name,fileExtension,map,version);
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}
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}
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}
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/**
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* µÃµ½Ò»¸öÎļþµÄmap
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* @param file
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* @param map
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*/
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private static void generateMap(File file, String fileExtension, Map<String,String> map,String version){
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//TODO Ëõ¶Ìmd5Öµ
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String strKey = file.getAbsolutePath();
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strKey = strKey.replace(webFileAbsolutePath, File.separator + webContent);
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strKey = strKey.replace("\\", "/");
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String strValue = getMD5(file);
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if(StringUtils.isNotBlank(strValue)){
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strValue = version;
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}
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map.put(strKey, strValue);
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}
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/**
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* ¶ÔÎļþÈ«ÎÄÉú³ÉMD5ÕªÒª
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*
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* @param file
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* Òª¼ÓÃܵÄÎļþ
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* @return MD5ÕªÒªÂë
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*/
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public static String getMD5(File file) {
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FileInputStream fis = null;
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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fis = new FileInputStream(file);
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byte[] buffer = new byte[2048];
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int length = -1;
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//ÔÝʱ²»ÓÃ
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//long s = System.currentTimeMillis();
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while ((length = fis.read(buffer)) != -1) {
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md.update(buffer, 0, length);
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}
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byte[] b = md.digest();
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return byteToHexString(b);
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// 16λ¼ÓÃÜ
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// return buf.toString().substring(8, 24);
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} catch (Exception ex) {
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ex.printStackTrace();
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return null;
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} finally {
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try {
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fis.close();
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} catch (IOException ex) {
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ex.printStackTrace();
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}
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}
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}
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/**
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* °Ñbyte[]Êý×éת»»³ÉÊ®Áù½øÖÆ×Ö·û´®±íʾÐÎʽ
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* @param tmp Ҫת»»µÄbyte[]
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* @return Ê®Áù½øÖÆ×Ö·û´®±íʾÐÎʽ
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*/
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private static String byteToHexString(byte[] tmp) {
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String s;
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// ÓÃ×Ö½Ú±íʾ¾ÍÊÇ 16 ¸ö×Ö½Ú
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char str[] = new char[16 * 2]; // ÿ¸ö×Ö½ÚÓà 16 ½øÖƱíʾµÄ»°£¬Ê¹ÓÃÁ½¸ö×Ö·û£¬
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// ËùÒÔ±íʾ³É 16 ½øÖÆÐèÒª 32 ¸ö×Ö·û
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int k = 0; // ±íʾת»»½á¹ûÖжÔÓ¦µÄ×Ö·ûλÖÃ
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for (int i = 0; i < 16; i++) { // ´ÓµÚÒ»¸ö×Ö½Ú¿ªÊ¼£¬¶Ô MD5 µÄÿһ¸ö×Ö½Ú
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// ת»»³É 16 ½øÖÆ×Ö·ûµÄת»»
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byte byte0 = tmp[i]; // È¡µÚ i ¸ö×Ö½Ú
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str[k++] = hexDigits[byte0 >>> 4 & 0xf]; // È¡×Ö½ÚÖÐ¸ß 4 λµÄÊý×Öת»»,
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// >>> ΪÂß¼ÓÒÒÆ£¬½«·ûºÅλһÆðÓÒÒÆ
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str[k++] = hexDigits[byte0 & 0xf]; // È¡×Ö½ÚÖÐµÍ 4 λµÄÊý×Öת»»
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}
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s = new String(str); // »»ºóµÄ½á¹ûת»»Îª×Ö·û´®
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return s;
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}
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/**
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*
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* @param filePath
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* @param fileExtension
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* @param map
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*/
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private static void getHtml(String filePath,String fileExtension,Map<String,String> map){
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readHtmlFile(fileScanDirec,".ftl",map);
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}
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/**
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* µÃµ½Â·¾¶ÏµÄËùÐèÎļþºÍÎļþµÄmd5Öµ
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* @param filePath
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* @param fileExtension
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* @param map
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*/
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private static void readHtmlFile(String filePath,String fileExtension,Map<String,String> map){
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File file = new File(filePath);
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if(file.isFile()){
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String fiePath = file.getAbsolutePath();
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//·ûºÏÖ¸¶¨ÀàÐÍ
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if(fiePath.endsWith(fileExtension)){
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addVersion(file,map);
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}
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}else if(file.isDirectory()){
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String[] fileList = file.list();
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for(String name : fileList){
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readHtmlFile(filePath + File.separator + name,fileExtension,map);
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}
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}
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}
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/**
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* µÃµ½Ò»¸öÎļþµÄmap
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* @param file
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* @param map
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*/
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private static void addVersion(File file,Map<String,String> map){
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//TODO Ëõ¶Ìmd5Öµ
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InputStream is = null;
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OutputStream os = null;
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List<String> contentList = new ArrayList<String>();
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// ¶ÁÎļþ
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try {
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//Ö¸¶¨utf-8¸ñʽ
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BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "utf-8"));
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String line = null;
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while ((line = br.readLine()) != null) {
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//TODO version ´«nullÖµ
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String modLine = getModLine(line, null,map);
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if (modLine != null) {
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//System.out.println(modLine);
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line = modLine;
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}
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line = line + "\r\n";
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contentList.add(line);
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}
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// ¹Ø±ÕÁ÷
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br.close();
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} catch (Exception e) {
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System.out.println("¶ÁÎļþʧ°Ü£º" + file.getAbsolutePath());
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e.printStackTrace();
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} finally {
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if (null != is) {
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try {
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is.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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// дÎļþ
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try {
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//Ö¸¶¨utf8¸ñʽ
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BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file),"utf-8"));
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for (Iterator<String> it = contentList.iterator(); it.hasNext();) {
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String line = it.next();
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bw.write(line);
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}
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// ¸üе½Îļþ
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bw.flush();
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// ¹Ø±ÕÁ÷
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bw.close();
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} catch (Exception e) {
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System.out.println("дÎļþʧ°Ü£º" + file.getAbsolutePath());
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e.printStackTrace();
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} finally {
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if (null != os) {
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try {
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os.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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}
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/**
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*
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* ²éÕÒÎļþÐèÒªµÄ°æ±¾ºÅµÄjs Óëcss ÐÐ
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* @param line ÐÐ×Ö·û
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* @param version ĬÈÏ°æ±¾
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* @param map md5 map
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* @return
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*/
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private static String getModLine(String line, String version, Map<String, String> map) {
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//Æ¥ÅähtmlÒýÈëjsÎļþ eg:<script type="text/javascript" src="/qxueyou/web/js/qxueyou.js"></script>
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if (scriptImportPattrrn.matcher(line).find()) {
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//ÒÔÒýºÅ·Ö¸ô£¬ÒÔ/¿ªÊ¼
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String md5Version = null;
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String strLine[] = line.split("\"");
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for(String str:strLine){
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if(null != md5Version){
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break;
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}
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if(str.startsWith("/")){
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//Èç¹ûÒÑÓа汾ºÅ£¬°´?·Ö¸ô£¬È¡µÚÒ»¸ö
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if(str.lastIndexOf("?version") != -1){
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str = str.substring(0, str.lastIndexOf("?version"));
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}
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md5Version = map.get(str);
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}
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}
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int pos = line.lastIndexOf(".js");
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if(null != md5Version){
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String modLine = line.substring(0, pos) + ".js?version=" + md5Version+ "\"></script>";
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return modLine;
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}
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//Æ¥ÅähtmlÒýÈëcssÎļþ eg£º<link href="/qxueyou/web/css/bootstrap.min.css" rel="stylesheet">
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} else if (cssImportPattrrn.matcher(line).find()) {
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//ÒÔÒýºÅ·Ö¸ô£¬ÒÔ/¿ªÊ¼
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String md5Version = null;
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String strLine[] = line.split("\"");
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for(String str:strLine){
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if(null != md5Version){
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break;
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}
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if(str.startsWith("/")){
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//Èç¹ûÒÑÓа汾ºÅ£¬°´?·Ö¸ô£¬È¡µÚÒ»¸ö
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if(str.lastIndexOf("?version") != -1){
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str = str.substring(0, str.lastIndexOf("?version"));
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}
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md5Version = map.get(str);
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}
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}
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int pos = line.lastIndexOf(".css");
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if(null != md5Version){
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String modLine = line.substring(0, pos) + ".css?version=" + md5Version+ "\" rel=\"stylesheet\">";
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return modLine;
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}
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}
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return line;
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}
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/**
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*
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* @param args
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*/
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public static void main(String[] args) {
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Date date = new Date();
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SimpleDateFormat df = new SimpleDateFormat("yyyyMMddhhmmss");
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String version = df.format(date);
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Map<String,String> objMap = new HashMap<String,String>();
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//Ìí¼ÓjsÎļþ
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getFileMD5Map(fileScanDirec,".js",objMap,version);
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//Ìí¼ÓCSSÎļþ
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getFileMD5Map(fileScanDirec,".css",objMap,version);
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//Ñ»·htmlÎļþ£¬ÐÞ¸ÄÆäÖеÄcssºÍjsÒýÈë·¾¶
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getHtml(fileScanDirec,".ftl",objMap);
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System.out.println("successful");
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}
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}
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