import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;import android.content.Context;
import android.os.Environment;
import android.text.TextUtils;/*** 文件工具类* * @version  v 1.0.0 2015-8-22 下午10:21:03 xl Exp $*/
public class FileUtils {public File ImgCachePath;public File ImgSavePath;public File ImgSharePath;public File ApkSavePath;public File LogSavePath;public File ImgCapTempPath;public File ImgCapCutPath;public File ImgCacheDefaultPath;public static String APP_DATA_ROOT_PATH;public static String IMG_SAVE_PATH;public static String IMG_SHARE_PATH;public static String APK_INSTALL_PATH;public static String APK_LOG_PATH;public static String IMG_SAVE_PATH_CAP_TEMP;public static String IMG_SAVE_PATH_CAP_CUT;public static String IMG_CACHE_XUTILS_SDCARD_PATH;public static String IMG_CACHE_XUTILS_DEFAULT_PATH;public static String FINAL_IMAGE_PATH;public static String FINAL_TEMP_PATH;public static String SDPATH;public File XLPath;public Context mContext;private static FileUtils mInstance;public FileUtils(Context context) {mContext = context;}/*** 创建文件工具类示例* * @param context*            上下文* @return*/public static synchronized FileUtils createInstance(Context context) {if (mInstance == null) {mInstance = new FileUtils(context);mInstance.initPath();}return mInstance;}/*** 获取文件工具类实例* * @return*/public static synchronized FileUtils getInstance() {if (mInstance == null)throw new IllegalStateException("FileUtil must be create by call createInstance(Context context)");return mInstance;}/*** 初始化本地缓存路径*/public void initPath() {if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {SDPATH = Environment.getExternalStorageDirectory() + "/";IMG_SAVE_PATH = SDPATH + "**/images/save/";IMG_SHARE_PATH = SDPATH + "**/images/share/";APK_INSTALL_PATH = SDPATH + "**/app/";APK_LOG_PATH = SDPATH + "**/log/";IMG_SAVE_PATH_CAP_TEMP = SDPATH + "**/images/save/capture/**_temp/";IMG_SAVE_PATH_CAP_CUT = SDPATH + "**/images/save/capture/**_cut/";IMG_CACHE_XUTILS_SDCARD_PATH = SDPATH + "**/images/cache/";// 用于保存图片缓存吧IMG_CACHE_XUTILS_DEFAULT_PATH = SDPATH + "Android/data/" + mContext.getPackageName() + "/cache/imgCache/";APP_DATA_ROOT_PATH = getAppPath() + "**/";FINAL_IMAGE_PATH = APP_DATA_ROOT_PATH + "images/";FINAL_TEMP_PATH = APP_DATA_ROOT_PATH + "temp/";XLPath= new File(APP_DATA_ROOT_PATH);if (!**.exists()) {XLPath.mkdirs();}XLPath = new File(FINAL_IMAGE_PATH);if (!XLPath.exists()) {XLPath.mkdirs();}XLPath = new File(FINAL_TEMP_PATH);if (!XLPath.exists()) {XLPath.mkdirs();}// 拍照图片保存地址ImgCapTempPath = new File(IMG_SAVE_PATH_CAP_TEMP);if (!ImgCapTempPath.exists()) {ImgCapTempPath.mkdirs();}// 裁剪后图片保存地址ImgCapCutPath = new File(IMG_SAVE_PATH_CAP_CUT);if (!ImgCapCutPath.exists()) {ImgCapCutPath.mkdirs();}// 图片保存、缓存地址ImgSavePath = new File(IMG_SAVE_PATH);if (!ImgSavePath.exists()) {ImgSavePath.mkdirs();}// 分享图片的临时保存路径ImgSharePath = new File(IMG_SHARE_PATH);if (!ImgSharePath.exists()) {ImgSharePath.mkdirs();}// 检测更新时保存路径ApkSavePath = new File(APK_INSTALL_PATH);if (!ApkSavePath.exists()) {ApkSavePath.mkdirs();}// 异常保存路径LogSavePath = new File(APK_LOG_PATH);if (!LogSavePath.exists()) {LogSavePath.mkdirs();}ImgCachePath = new File(IMG_CACHE_XUTILS_SDCARD_PATH);if (!ImgCachePath.exists()) {ImgCachePath.mkdirs();}ImgCacheDefaultPath = new File(IMG_CACHE_XUTILS_DEFAULT_PATH);if (!ImgCacheDefaultPath.exists()) {ImgCacheDefaultPath.mkdirs();}}}private String getAppPath() {LogCatLog.i(TAG, "MyApplication-getAppPath():" + mContext.getFilesDir().getParent());return mContext.getFilesDir().getParent() + "/";}/*** [将文件保存到SDcard方法]<BR>* [功能详细描述]* * @param fileName* @param inStream* @throws IOException*/public boolean saveFile2SDCard(String fileName, byte[] dataBytes) throws IOException {boolean flag = false;FileOutputStream fs = null;try {if (!TextUtils.isEmpty(fileName)) {File file = newFileWithPath(fileName.toString());if (file.exists()) {file.delete();LogCatLog.w(TAG, "httpFrame  threadName:" + Thread.currentThread().getName() + " 文件已存在 则先删除: "+ fileName.toString());}fs = new FileOutputStream(file);fs.write(dataBytes, 0, dataBytes.length);fs.flush();flag = true;}} catch (Exception e) {e.printStackTrace();} finally {if (fs != null)fs.close();}return flag;}/*** 创建一个文件，如果其所在目录不存在时，他的目录也会被跟着创建* * @author songdiyuan* @date 2015-8-24* @return*/public File newFileWithPath(String filePath) {if (TextUtils.isEmpty(filePath)) {return null;}int index = filePath.lastIndexOf(File.separator);String path = "";if (index != -1) {path = filePath.substring(0, index);if (!TextUtils.isEmpty(path)) {File file = new File(path.toString());// 如果文件夹不存在if (!file.exists() && !file.isDirectory()) {boolean flag = file.mkdirs();if (flag) {LogCatLog.i(TAG, "httpFrame  threadName:" + Thread.currentThread().getName() + " 创建文件夹成功："+ file.getPath());} else {LogCatLog.e(TAG, "httpFrame  threadName:" + Thread.currentThread().getName() + " 创建文件夹失败："+ file.getPath());}}}}return new File(filePath);}/*** 判断文件是否存在* * @param strPath* @return*/public boolean isExists(String strPath) {if (strPath == null) {return false;}final File strFile = new File(strPath);if (strFile.exists()) {return true;}return false;}
}

/*** 保存获取的 软件信息，设备信息和出错信息保存在SDcard中* * @param context* @param ex* @return*/private String savaInfoToSD(Context context, Throwable ex) {String fileName = null;StringBuffer sb = new StringBuffer();for (Map.Entry<String, String> entry : obtainSimpleInfo(context).entrySet()) {String key = entry.getKey();String value = entry.getValue();sb.append(key).append(" = ").append(value).append("\n");}sb.append(obtainExceptionInfo(ex));try {fileName = FileUtils.APK_LOG_PATH+ paserTime(System.currentTimeMillis()) + ".log";FileOutputStream fos = new FileOutputStream(fileName);fos.write(sb.toString().getBytes());fos.flush();fos.close();} catch (Exception e) {e.printStackTrace();}return fileName;}

String fileName = "***" + " " + time + "[在这里输入要存储的文件类型eg:.jpg/.pdf/.doc/.txt....]";
String path = FileUtils.APK_INSTALL_PATH + fileName;
FileUtils.getInstance().saveFile2SDCard(path, ArchData);//由于该方法是将文件已二进制数组的方式将数据存储进去，所以第二个参数里面是一个二进制数组