Android Json 工具类

JsonUtils.java

package com.clock.datatransfer;

import android.content.Context;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;

/**
 * Created by Clock on 2017/1/14.
 */

public class JsonUtils {

    private JsonUtils() {
    }

    /**
     * 从raw目录下读取JSON文件的信息
     *
     * @param context
     * @param jsonFileId
     * @return
     */
    public static String getJsonFormRawResource(Context context, int jsonFileId) {

        InputStream inputStream = context.getResources().openRawResource(jsonFileId);
        BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
        StringWriter stringWriter = new StringWriter();

        byte[] buffer = new byte[1024];
        String json = "";
        int length = -1;
        try {
            while ((length = bufferedInputStream.read(buffer)) != -1) {
                String bufferStr = new String(buffer, 0, length);
                stringWriter.write(bufferStr);
            }
            stringWriter.flush();
            json = stringWriter.getBuffer().toString();

        } catch (IOException e) {
            e.printStackTrace();

        }

        try {
            bufferedInputStream.close();
            stringWriter.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return json;
    }
}