pda/zhuike/src/main/java/com/novelbook/android/utils/GsonUtil.java

package com.novelbook.android.utils;

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.novelbook.android.bean.NovelBlock;
import com.novelbook.android.db.Novel;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public class GsonUtil {

    private static Gson gson = new Gson();
    public static Novel getNovel(String json){
        Novel nv = new Novel();
        try {
            JSONObject jsonObject = new JSONObject(json);
            nv.setNovelId(jsonObject.getInt("novelId"));
            nv.setLastUpateTime(jsonObject.getLong("lastUpateTime"));
            nv.setAuthor(jsonObject.getString("author"));
            nv.setName(jsonObject.getString("name"));
            nv.setCover(jsonObject.getString("cover"));
            nv.setNovelType(jsonObject.getString("novelType"));
            nv.setSmallNovelType(jsonObject.getString("novelType2"));
            nv.setChapterName(jsonObject.getString("lastestChapterName"));

            return  nv;

        } catch (JSONException e) {
            e.printStackTrace();
        }
        return  nv;
    }
    public static List<NovelBlock> parserNovleBlocks(String restult,String blockName ) throws JSONException {
        JSONObject jsonObject = new JSONObject(restult);
        String strJson = jsonObject.getString(blockName);
        List<NovelBlock> list = new ArrayList<NovelBlock>();
        //创建一个Gson对象
        // Gson gson = new Gson();
        //创建一个JsonParser
        JsonParser parser = new JsonParser();
        //通过JsonParser对象可以把json格式的字符串解析成一个JsonElement对象
        JsonElement el = parser.parse(strJson);

        //把JsonElement对象转换成JsonObject
        JsonObject jsonObj = null;
        if (el.isJsonObject()) {
            jsonObj = el.getAsJsonObject();
        }


        //把JsonElement对象转换成JsonArray
        JsonArray jsonArray = null;
        if (el.isJsonArray()) {
            jsonArray = el.getAsJsonArray();
        }

        //遍历JsonArray对象
        Iterator it = jsonArray.iterator();
        while (it.hasNext()) {
            JsonElement e = (JsonElement) it.next();
            //JsonElement转换为JavaBean对象
            list.add((NovelBlock) gson.fromJson(e, NovelBlock.class));
        }
        return list;
    }
    public static List<Novel> parserJsonArray(String restult,String blockName ) throws JSONException {

        JSONObject jsonObject = new JSONObject(restult);
        String resultstr = jsonObject.getString(blockName);

        List<Novel> list = new ArrayList<Novel>();
        //创建一个Gson对象
        // Gson gson = new Gson();
        //创建一个JsonParser
        JsonParser parser = new JsonParser();
        //通过JsonParser对象可以把json格式的字符串解析成一个JsonElement对象
        JsonElement el = parser.parse(resultstr);

        //把JsonElement对象转换成JsonObject
        JsonObject jsonObj = null;
        if (el.isJsonObject()) {
            jsonObj = el.getAsJsonObject();
        }


        //把JsonElement对象转换成JsonArray
        JsonArray jsonArray = null;
        if (el.isJsonArray()) {
            jsonArray = el.getAsJsonArray();
        }

        //遍历JsonArray对象
        Iterator it = jsonArray.iterator();
        while (it.hasNext()) {
            JsonElement e = (JsonElement) it.next();
            //JsonElement转换为JavaBean对象
            list.add((Novel) gson.fromJson(e, Novel.class));
        }
        return list;
    }
}