Android离线Doc文档访问速度慢的有效解决方法

import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileFilter; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.Map; import java.util.UUID; public class AndroidDoc {   private static final String ANDROID_SDK_HOME = "ANDROID_SDK_HOME";   private static final String TAG = "<script src=/"http://www.google.com/jsapi/" type=/"text/javascript/"></script>";   private static String androidSDKHome;   public static void main(String[] args) {     Map<String, String> map = System.getenv();     androidSDKHome = map.get(ANDROID_SDK_HOME);     if (androidSDKHome != null) {       System.out.println("Detected the Android SDK Installation path:"          + androidSDKHome);       File docs = new File(androidSDKHome + "//docs");       System.out.println("It will take several minutes, please wait...");       traverse(docs);       System.out           .println("Operation Down!!! Now you can visit Android Doc without waiting...");     } else {       System.out           .println("Please configure the Android SDK Environment variable (ANDROID_SDK_HOME)!");     }   }   /**    * 遍历Android SDK安装目录下的docs目录    *    * @param dir    */  private static void traverse(File dir) {     if (dir.isDirectory()) {       File[] files = dir.listFiles(new FileFilter() {         @Override        public boolean accept(File file) {           if (file.isFile() && file.getName().endsWith(".html")) {             BufferedReader reader = null;             try {               reader = new BufferedReader(new FileReader(file));               String buffer;               while ((buffer = reader.readLine()) != null) {                 if (buffer.trim().equalsIgnoreCase(TAG)) {                   return true;                 }               }             } catch (Exception e) {               e.printStackTrace();             } finally {               try {                 reader.close();               } catch (IOException e) {                 e.printStackTrace();               }             }           } else if (file.isDirectory()) {             return true;           }           return false;         }       });       for (File file : files) {         if (file.isDirectory()) {           System.out.println("Scanning Folder:"              + file.getAbsolutePath());           traverse(file);         } else {           doChange(file);         }       }     }   }   /**    * 注释html中的某行Javascript代码    *    * @param file    * @return    */  private static boolean doChange(File file) {     System.out.println("Extracting File:" + file.getAbsolutePath() + "...");     String desPath = file.getParent() + "//" + UUID.randomUUID().toString() + ".html";     File des = new File(desPath);     BufferedReader reader = null;     BufferedWriter writer = null;     try {       des.createNewFile();       reader = new BufferedReader(new FileReader(file));       writer = new BufferedWriter(new FileWriter(des));       String buffer;       while ((buffer = reader.readLine()) != null) {         if (buffer.trim().equalsIgnoreCase(TAG)) {           buffer = "<!--" + TAG + "-->";         }         writer.write(buffer + "/n");         writer.flush();       }       return true;     } catch (FileNotFoundException e) {       e.printStackTrace();     } catch (IOException e) {       e.printStackTrace();     } finally {       try {         reader.close();         writer.close();         file.delete();         des.renameTo(file);       } catch (IOException e) {         e.printStackTrace();       }     }     return false;   } }