DataHelper.java

package org.zywx.wbpalmstar.engine;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.zywx.wbpalmstar.base.BDebug;

import java.lang.reflect.Type;

/**
 * Created by ylt on 2015/4/28.
 */
public class DataHelper {

    public static Gson gson = new GsonBuilder().registerTypeAdapter(Double.class, new JsonSerializer<Double>() {

        @Override
        public JsonElement serialize(Double src, Type typeOfSrc, JsonSerializationContext context) {
            if (src == src.longValue())
                return new JsonPrimitive(src.longValue());
            return new JsonPrimitive(src);
        }
    }).create();

    /**
     * 转换成适合阅读的Json
     */
    public static String toPrettyJson(String json){
        try {
            json = json.trim();
            if (json.startsWith("{")) {
                JSONObject jsonObject = new JSONObject(json);
                return jsonObject.toString(4);
            }
            if (json.startsWith("[")) {
                JSONArray jsonArray = new JSONArray(json);
                return jsonArray.toString(4);
            }
        } catch (JSONException e) {
            if (BDebug.DEBUG){
                e.printStackTrace();
            }
        }
        return json;
    }

}