import android.content.Context;

 import android.content.res.AssetManager;

 import android.graphics.Bitmap;

 import android.graphics.BitmapFactory;

 import java.io.BufferedReader;

 import java.io.ByteArrayOutputStream;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.InputStreamReader;

 public class LocalFileUtils {

     /**

      * 获取Asset下文本内容

      * @param context

      * @param str

      * @return

      */

     public final static String getStringFormAsset(Context context, String str) {

         BufferedReader in = null;

         try {

             in = new BufferedReader(new InputStreamReader(context.getAssets().open(str)));

             String line;

             StringBuilder buffer = new StringBuilder();

             while ((line = in.readLine()) != null) {

                 buffer.append(line).append('\n');

             }

             return buffer.toString();

         } catch (IOException e) {

             e.printStackTrace();

             return "";

         } finally {

             if (in != null) {

                 try {

                     in.close();

                     in = null;

                 } catch (IOException e) {

                     e.printStackTrace();

                 }

             }

         }

     }

     /**

      * @description 从Assets中读取图片

      *

      * @param context

      * @param fileName

      * @return 图片

      * @date 2015-6-11 15:00:55

      */

     public static Bitmap getImageFromAssetsFile(Context context, String fileName) {

         Bitmap image = null;

         AssetManager am = context.getAssets();

         InputStream is = null;

         try {

             is = am.open(fileName);

             image = BitmapFactory.decodeStream(is);

             return image;

         } catch (IOException e) {

             e.printStackTrace();

             return image;

         } finally {

             if(is != null) {

                 try {

                     is.close();

                     is = null;

                 } catch (IOException e) {

                     e.printStackTrace();

                 }

             }

         }

     }

     /**

      * 获取Raw下文本内容

      * @param context

      * @param rawId

      * @return

      */

     public final static String getStringFormRaw(Context context, int rawId) {

         ByteArrayOutputStream baos = null;

         InputStream in = context.getResources().openRawResource(rawId);

         try {

             baos = new ByteArrayOutputStream();

             byte[] buffer = new byte[1024];

             int len = 0;

             while ((len = in.read(buffer)) != -1) {

                 baos.write(buffer, 0, len);

             }

             baos.close();

             return baos.toString();

         } catch (Exception e) {

             e.printStackTrace();

             return "";

         } finally {

             if (baos != null) {

                 try {

                     baos.close();

                     baos = null;

                 } catch (IOException e) {

                     e.printStackTrace();

                 }

             }

         }

     }

 }

 long startTime4 = System.currentTimeMillis();

 String my_json = LocalFileUtils.getStringFormAsset(this, "testbean1.json");

 for (int n = 0; n < 100000; n++) {

    // 使用JSON 操作 工具将JSON字符串封装到实体类

    TestBean1 toBean = my_gson.fromJson(my_json, my_type); //JsonTool.toBean(json, TestBean1.class);

    System.out.println(toBean);

 }

 long endTime4 = System.currentTimeMillis() - startTime4;

 Log.i(TAG, "gson....." + endTime4);