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; 
} 
}