/**
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* Company: ImanSoft( http://www.imansoft.cn/ )
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*/
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package com.dayu.pipirrapp.utils;
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import android.text.TextUtils;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonParser;
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import com.google.gson.LongSerializationPolicy;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.lang.reflect.ParameterizedType;
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import java.lang.reflect.Type;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Set;
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/**
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* @author cuiyaosheng 主要功能: 创建日期:2014年2月13日 修改人,修改日期,修改内容
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* @com.iman.hom.commons.calls.@JsonParser
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*/
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public class MyJsonParser {
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/**
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* 构造函数
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*/
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public MyJsonParser() {
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}
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/**
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* 获取Json字符串中的属性值
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*
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* @param json Json字符串
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* @param attrName 属性名称
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* @return 属性值
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* @throws JSONException
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*/
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public static Object getPropertyFromJson(String json, String attrName) throws JSONException {
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JSONObject jsonObject;
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try {
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jsonObject = new JSONObject(json);
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return jsonObject.get(attrName);
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} catch (JSONException e) {
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}
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return null;
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}
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/**
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* 将对象传换成Json窜
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*
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* @param t
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* @return
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*/
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public static <T> String bean2Json(T t) {
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try {
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if (t == null && !TextUtils.isEmpty(t.toString()))
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return "";
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Gson gson = new Gson();
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return gson.toJson(t);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return "";
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}
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/***
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* 转换为T类型
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*
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* @param json
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* @param tClass
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* @param <T>
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* @return
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*/
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public static <T> T json2Bean(String json, Class<T> tClass) {
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try {
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if (!TextUtils.isEmpty(json)) {
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Gson gson = new Gson();
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return gson.fromJson(json, tClass);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 将Json 直接序列化 为List
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*
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* @param json 目标json 字符串
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* @param type 类型，用gson 的TypeKoken 包装的类型，如：new TypeToken<List<ShowItemDetailInfo.DetailItemImage>>(){}.getType()
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* @return
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*/
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public static <T> List<T> json2List(String json, Type type) {
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try {
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if (!TextUtils.isEmpty(json)) {
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Gson gson = new Gson();
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return gson.fromJson(json, type);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/****
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* 将json转化成对应的JavaBean
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*
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* @param json
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* @return
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*/
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public static <T> T getBeanFromJson(String json, Class<T> cl) {
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try {
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Gson gson = buildGson();
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return (T) gson.fromJson(json, cl);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/****
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* 将json转化成对应的JavaBean
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*
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* @param json
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* @return
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*/
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public static <T> T getBeanFromJson(String json, Type cl) {
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try {
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Gson gson = buildGson();
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return (T) gson.fromJson(json, cl);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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private static Gson buildGson() {
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GsonBuilder gsonBuilder = new GsonBuilder();
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// gsonBuilder.registerTypeAdapterFactory(GsonTypeAdapter.FACTORY);
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return gsonBuilder.create();
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}
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// /****
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// * 将json转化成对应的JavaBean
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// *
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// * @param json
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// * @return
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// */
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// public static <T> List<T> getListBeanFromJson(String json, final List<T> cl) {
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// try {
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// List<T> list = new ArrayList<>();
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// Gson gson = new Gson();
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// Type listType = new TypeToken<cl>() {
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// }.getType();
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// return list = gson.fromJson(json, listType);
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//
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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// return null;
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//
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// }
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/****
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* 将json转化成对应的JavaBean
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*
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* @return
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*/
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public static <T> T getBeanFromMap(Map<String, Object> map, Class<T> cl) {
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return getBeanFromJson(getJsonFromMap(map), cl);
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}
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public static <T> T getJsonForList(List listData, Class<T> cl) {
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List list = new ArrayList();
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for (int i = 0; i < listData.size(); i++) {
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list.add(getBeanFromMap((Map<String, Object>) listData.get(i), cl));
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}
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return (T) list;
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}
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/***
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* 将Map<String, String>对象转换为JSON字符串
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*
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* @param params 参数
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* @return Json字符串
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*/
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public static String getJsonFromMap(Map<String, Object> params) {
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if (params == null || params.size() <= 0) {
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return "";
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}
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return getJSONObjectFromMap(params).toString();
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}
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public static String getJsontoMap(Map<String, Object> params) {
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GsonBuilder gsonBuilder = new GsonBuilder();
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gsonBuilder.setLongSerializationPolicy( LongSerializationPolicy.STRING );
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gsonBuilder.serializeSpecialFloatingPointValues();
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Gson gson = gsonBuilder.create();
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String jsonStr = gson.toJson(params);
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return jsonStr;
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}
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public static <T> String getJsonbyList(List<T> params) {
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Gson gson = new Gson();
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return gson.toJson(params);
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}
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/***
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* 将Map<String, String>对象转换为JSONObject字符串
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*
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* @param params
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* @return
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*/
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@SuppressWarnings("unchecked")
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private static JSONObject getJSONObjectFromMap(Map<String, Object> params) {
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Set<Entry<String, Object>> entrySet = params.entrySet();
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JSONObject object = new JSONObject();
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for (Entry<String, Object> entry : entrySet) {
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try {
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Object ob = entry.getValue();
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if (ob instanceof List) {
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List list = (List) ob;
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if (list == null || list.size() == 0) {
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continue;
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}
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JSONArray array = new JSONArray();
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for (Object o : list) {
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if (o instanceof Map) {
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array.put(getJSONObjectFromMap((Map<String, Object>) o));
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} else if (o instanceof List) {
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JSONArray array1 = new JSONArray();
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array1.put(getListFromJson(o.toString()));
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array.put(array1);
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} else {
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array.put(o);
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}
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}
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object.put(entry.getKey(), array);
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} else if (ob instanceof Map) {
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object.put(entry.getKey(), getJSONObjectFromMap((Map<String, Object>) ob));
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} else {
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object.put(entry.getKey(), entry.getValue());
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}
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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return object;
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}
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public static String getJsonFromStringMap(Map<String, String> params) {
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Set<Entry<String, String>> entrySet = params.entrySet();
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JSONObject object = new JSONObject();
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for (Entry<String, String> entry : entrySet) {
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try {
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object.put(entry.getKey(), entry.getValue());
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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return object.toString();
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}
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/**
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* 将json转化为HashMap
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*
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* @param jsonStr 字符串
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* @return
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*/
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public static HashMap<String, Object> getMapFromJson(String jsonStr) {
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HashMap<String, Object> valueMap = new LinkedHashMap<String, Object>();
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if (jsonStr == null || "".equals(jsonStr)) {
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return valueMap;
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}
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try {
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JSONObject jsonObject = new JSONObject(jsonStr);
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valueMap = getMapFromJsonObject(jsonObject);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return valueMap;
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}
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/**
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* 转换JsonArray为List<HashMap<String,Object>>.
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*
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* @param jsonArray JsonArray
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* @return
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*/
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public static List<Object> getListFromJsonArray(JSONArray jsonArray) {
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List<Object> list = new ArrayList<Object>();
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int len = jsonArray.length();
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try {
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for (int i = 0; i < len; i++) {
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Object obj = jsonArray.get(i);
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if (obj instanceof JSONObject) {
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list.add(getMapFromJsonObject((JSONObject) obj));
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} else if (obj instanceof JSONArray) {
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list.add(getListFromJsonArray(jsonArray));
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} else {
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if (obj != null && !TextUtils.isEmpty(obj.toString()) && !"null".equals(obj.toString()))
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list.add(obj);
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}
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}
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} catch (JSONException e) {
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e.printStackTrace();
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}
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return list;
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}
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/**
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* 转换JSONObject为HashMap<String,Object>. 注：如果json对象的值为null,则默认转换为"".
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*
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* @param jsonObj
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* @return
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*/
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public static HashMap<String, Object> getMapFromJsonObject(JSONObject jsonObj) {
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HashMap<String, Object> map = new LinkedHashMap<String, Object>();
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Iterator<String> iters = jsonObj.keys();
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try {
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while (iters.hasNext()) {
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String key = iters.next();
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Object obj = jsonObj.get(key);
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if (obj instanceof JSONArray) {
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map.put(key, getListFromJsonArray((JSONArray) obj));
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} else if (obj instanceof JSONObject) {
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map.put(key, getMapFromJsonObject((JSONObject) obj));
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} else if (obj instanceof Number) {
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map.put(key, String.valueOf(obj));
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} else if (jsonObj.isNull(key)) {
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map.put(key, "");
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} else {
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if (obj != null && !TextUtils.isEmpty(obj.toString()) && !"null".equals(obj.toString()))
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map.put(key, obj);
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}
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}
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} catch (JSONException e) {
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e.printStackTrace();
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}
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return map;
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}
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/**
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* @param str
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* @param clazz
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* @param <T>
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* @return
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*/
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public static <T> List<T> getListFromJson(String str, Class<T> clazz) {
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try {
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Type type = new ParameterizedTypeImpl(clazz);
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List<T> list = new Gson().fromJson(str, type);
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return list;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* @param str
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* @param <T>
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* @return
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*/
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public static <T> List<T> getListFromJson(String str, Type type) {
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try {
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List<T> list = new Gson().fromJson(str, type);
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return list;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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private static class ParameterizedTypeImpl implements ParameterizedType {
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Class clazz;
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public ParameterizedTypeImpl(Class clz) {
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clazz = clz;
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}
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@Override
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public Type[] getActualTypeArguments() {
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return new Type[]{clazz};
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}
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@Override
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public Type getRawType() {
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return List.class;
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}
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@Override
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public Type getOwnerType() {
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return null;
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}
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}
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public static List<Object> getListFromJson(String json) {
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try {
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JSONArray jsonObject = new JSONArray(json);
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return getListFromJsonArray(jsonObject);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/***
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* 在一个HashMap中查找keyName对应的数据对象，查到的第一个就直接返回了
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*
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* @param users
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* @param keyName
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* @return
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*/
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@SuppressWarnings("unchecked")
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public static Object getObjectFromJSONMap(Map<String, Object> users, String keyName) {
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if (users == null || users.size() <= 0)
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return null;
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try {
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Set<Entry<String, Object>> set = users.entrySet();
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for (Entry<String, Object> entry : set) {
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String key = entry.getKey();
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Object value = entry.getValue();
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if (key.equalsIgnoreCase(keyName))
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return value;
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HashMap<String, Object> map = null;
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if (value instanceof Map) {
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map = (HashMap<String, Object>) value;
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Object object = getObjectFromJSONMap(map, keyName);
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if (object != null)
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return object;
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 将json 数组转换为Map 对象
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*
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* @param jsonString
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* @return
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*/
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public static Map<String, Object> getMapForJson(String jsonString) {
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JSONObject jsonObject;
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try {
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jsonObject = new JSONObject(jsonString);
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@SuppressWarnings("unchecked")
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Iterator<String> keyIter = jsonObject.keys();
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String key;
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Object value;
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Map<String, Object> valueMap = new HashMap<String, Object>();
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while (keyIter.hasNext()) {
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key = (String) keyIter.next();
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value = jsonObject.get(key);
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valueMap.put(key, value);
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}
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return valueMap;
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} catch (JSONException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 把json 转换为ArrayList 形式
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*
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* @return
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*/
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public static List<Map<String, Object>> getList(String jsonString) {
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List<Map<String, Object>> list = null;
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try {
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JSONArray jsonArray = new JSONArray(jsonString);
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JSONObject jsonObject;
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list = new ArrayList<Map<String, Object>>();
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for (int i = 0; i < jsonArray.length(); i++) {
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if (jsonArray.get(i) instanceof String) {
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String data = jsonArray.getString(i);
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list.add(getMapForJson(data));
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} else {
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jsonObject = jsonArray.getJSONObject(i);
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list.add(getMapForJson(jsonObject.toString()));
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return list;
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}
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// /**
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// * @param str
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// * @param clazz
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// * @param <T>
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// * @return
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// */
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// public static <T> List<T> getListByJson(String str, Class<T> clazz) {
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// try {
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// JSONArray jsonArray = new JSONArray(str);
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// List<T> list = new ArrayList<>();
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// for (int i = 0; i < jsonArray.length(); i++) {
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// list.add(json2Bean(jsonArray.get(i).toString(), clazz));
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// }
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// return list;
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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// return null;
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// }
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// /**
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// * @param str
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// * @param clazz
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// * @param <T>
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// * @return
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// */
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// public static <T> List<T> getListByJson(String str, Class<T> clazz) {
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// try {
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// List<T> list = new ArrayList<>();
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// Gson gson = new Gson();
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// list = gson.fromJson(str, new TypeToken<List<T>>() {
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// }.getType());
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// return list;
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// } catch (Exception e) {
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// e.printStackTrace();
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// }
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// return null;
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// }
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/**
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* 转成list
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* 解决泛型问题
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*
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* @param json
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* @param cls
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* @param <T>
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* @return
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*/
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public static <T> List<T> getListByJson(String json, Class<T> cls) {
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Gson gson = new Gson();
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List<T> list = new ArrayList<T>();
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JsonArray array = new JsonParser().parse(json).getAsJsonArray();
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for (final JsonElement elem : array) {
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list.add(gson.fromJson(elem, cls));
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}
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return list;
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}
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// public static<T> Map<String,Object> getMapFormBean(Class<T> clazz){
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// JSONObject.parseObject(JSON.toJSONString(object),Map.class);
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// new JSONObject()
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// }
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}
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