android加载本地文件数据

package com.example.textjson;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

import java.io.*;

public class MyActivity extends Activity {
    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        getData("person_utf8.txt");
        Log.e("convertCodeAndGetText",convertCodeAndGetText("person_utf8.txt"));
    }

    private void getData(String name) {
        InputStream is = null;
        byte[] buffer;
        try {
            is = getAssets().open(name);
            buffer = new byte[is.available()];
            is.read(buffer);
            String json = new String(buffer,"utf-8");
            Log.e("json",json);
            is.close();
        } catch (IOException e) {
            e.printStackTrace();
            return;
        }

    }

    public String convertCodeAndGetText(String name) {// 转码

        String text = "";
        BufferedInputStream in = null;
        BufferedReader reader = null;
        try {
            in = new BufferedInputStream(getAssets().open(name));

            in.mark(4);
            byte[] first3bytes = new byte[3];
            in.read(first3bytes);//找到文档的前三个字节并自动判断文档类型。
            in.reset();
            if (first3bytes[0] == (byte) 0xEF && first3bytes[1] == (byte) 0xBB
                    && first3bytes[2] == (byte) 0xBF) {// utf-8
                Log.e("charset","utf-8");
                reader = new BufferedReader(new InputStreamReader(in, "utf-8"));

            } else if (first3bytes[0] == (byte) 0xFF
                    && first3bytes[1] == (byte) 0xFE) {
                Log.e("charset","unicode");
                reader = new BufferedReader(
                        new InputStreamReader(in, "unicode"));
            } else if (first3bytes[0] == (byte) 0xFE
                    && first3bytes[1] == (byte) 0xFF) {
                Log.e("charset","utf-16be");
                reader = new BufferedReader(new InputStreamReader(in,
                        "utf-16be"));
            } else if (first3bytes[0] == (byte) 0xFF
                    && first3bytes[1] == (byte) 0xFF) {
                Log.e("charset","utf-16le");
                reader = new BufferedReader(new InputStreamReader(in,
                        "utf-16le"));
            } else {
                Log.e("charset","GBK");
                reader = new BufferedReader(new InputStreamReader(in, "GBK"));
            }
            String str = reader.readLine();

            while (str != null) {
                text = text + str + "\r\n";
                str = reader.readLine();

            }
            reader.close();
            in.close();

        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return text;
    }
}

源码：http://yunpan.cn/c3mZgpetAGyXu （提取码：7e6c）