/**?*/ /**
?*?Copyright?(c)?linkwise?2007-2009?corporation.??
?*?All?rights?reserved
? */
package ?com.linghui.common.util;

import ?java.util.ArrayList;
import ?java.util.Date;
import ?java.util.HashMap;
import ?java.util.Iterator;
import ?java.util.List;
import ?java.util.Map;

import ?net.sf.json.JSONArray;
import ?net.sf.json.JSONObject;
import ?net.sf.json.JsonConfig;
import ?net.sf.json.util.CycleDetectionStrategy;

import ?com.linghui.common.util.DateUtil;
import ?com.linghui.common.util.jsonutil.DateJsonValueProcessor;

/**?*/ /**
?*? @author ?</br>?<a?href="mailto:fx19800215@163.com">?robert.feng</a>
?*
? */
public ? class ?JsonUtil? ... {

???? /**?*/ /**
?????*?從一個JSON?對象字符格式中得到一個java對象
?????*? @param ?jsonString
?????*? @param ?pojoCalss
?????*? @return
????? */
???? public ? static ?Object?getObject4JsonString(String?jsonString,Class?pojoCalss) ... {
????????Object?pojo;
????????JSONObject?jsonObject? = ?JSONObject.fromObject(?jsonString?);??
????????pojo? = ?JSONObject.toBean(jsonObject,pojoCalss);
???????? return ?pojo;
????}
????
????
????
???? /**?*/ /**
?????*?從json?HASH表達(dá)式中獲取一個map，改map支持嵌套功能
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?Map?getMap4Json(String?jsonString) ... {
????????JSONObject?jsonObject? = ?JSONObject.fromObject(?jsonString?);??
????????Iterator??keyIter? = ?jsonObject.keys();
????????String?key;
????????Object?value;
????????Map?valueMap? = ? new ?HashMap();

???????? while (?keyIter.hasNext())
???????? ... {
????????????key? = ?(String)keyIter.next();
????????????value? = ?jsonObject.get(key);
????????????valueMap.put(key,?value);
????????}
????????
???????? return ?valueMap;
????}
????
????
???? /**?*/ /**
?????*?從json數(shù)組中得到相應(yīng)java數(shù)組
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?Object[]?getObjectArray4Json(String?jsonString) ... {
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
???????? return ?jsonArray.toArray();
????????
????}
????
????
???? /**?*/ /**
?????*?從json對象集合表達(dá)式中得到一個java對象列表
?????*? @param ?jsonString
?????*? @param ?pojoClass
?????*? @return
????? */
???? public ? static ?List?getList4Json(String?jsonString,?Class?pojoClass) ... {
????????
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
????????JSONObject?jsonObject;
????????Object?pojoValue;
????????
????????List?list? = ? new ?ArrayList();
???????? for ?(? int ?i? = ? 0 ?;?i < jsonArray.size();?i ++ ) ... {
????????????
????????????jsonObject? = ?jsonArray.getJSONObject(i);
????????????pojoValue? = ?JSONObject.toBean(jsonObject,pojoClass);
????????????list.add(pojoValue);
????????????
????????}
???????? return ?list;

????}
????
???? /**?*/ /**
?????*?從json數(shù)組中解析出java字符串?dāng)?shù)組
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?String[]?getStringArray4Json(String?jsonString) ... {
????????
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
????????String[]?stringArray? = ? new ?String[jsonArray.size()];
???????? for (? int ?i? = ? 0 ?;?i < jsonArray.size()?;?i ++ ?) ... {
????????????stringArray[i]? = ?jsonArray.getString(i);
????????????
????????}
????????
???????? return ?stringArray;
????}
????
???? /**?*/ /**
?????*?從json數(shù)組中解析出javaLong型對象數(shù)組
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?Long[]?getLongArray4Json(String?jsonString) ... {
????????
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
????????Long[]?longArray? = ? new ?Long[jsonArray.size()];
???????? for (? int ?i? = ? 0 ?;?i < jsonArray.size()?;?i ++ ?) ... {
????????????longArray[i]? = ?jsonArray.getLong(i);
????????????
????????}
???????? return ?longArray;
????}
????
???? /**?*/ /**
?????*?從json數(shù)組中解析出java?Integer型對象數(shù)組
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?Integer[]?getIntegerArray4Json(String?jsonString) ... {
????????
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
????????Integer[]?integerArray? = ? new ?Integer[jsonArray.size()];
???????? for (? int ?i? = ? 0 ?;?i < jsonArray.size()?;?i ++ ?) ... {
????????????integerArray[i]? = ?jsonArray.getInt(i);
????????????
????????}
???????? return ?integerArray;
????}
????
???? /**?*/ /**
?????*?從json數(shù)組中解析出java?Date?型對象數(shù)組，使用本方法必須保證
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?Date[]?getDateArray4Json(String?jsonString,String?DataFormat) ... {
????????
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
????????Date[]?dateArray? = ? new ?Date[jsonArray.size()];
????????String?dateString;
????????Date?date;
????????
???????? for (? int ?i? = ? 0 ?;?i < jsonArray.size()?;?i ++ ?) ... {
????????????dateString? = ?jsonArray.getString(i);
????????????date? = ?DateUtil.stringToDate(dateString,?DataFormat);
????????????dateArray[i]? = ?date;
????????????
????????}
???????? return ?dateArray;
????}
????
???? /**?*/ /**
?????*?從json數(shù)組中解析出java?Integer型對象數(shù)組
?????*? @param ?jsonString
?????*? @return
????? */
???? public ? static ?Double[]?getDoubleArray4Json(String?jsonString) ... {
????????
????????JSONArray?jsonArray? = ?JSONArray.fromObject(jsonString);
????????Double[]?doubleArray? = ? new ?Double[jsonArray.size()];
???????? for (? int ?i? = ? 0 ?;?i < jsonArray.size()?;?i ++ ?) ... {
????????????doubleArray[i]? = ?jsonArray.getDouble(i);
????????????
????????}
???????? return ?doubleArray;
????}
????
????
???? /**?*/ /**
?????*?將java對象轉(zhuǎn)換成json字符串
?????*? @param ?javaObj
?????*? @return
????? */
???? public ? static ?String?getJsonString4JavaPOJO(Object?javaObj) ... {
????????
????????JSONObject?json;
????????json? = ?JSONObject.fromObject(javaObj);
???????? return ?json.toString();
????????
????}
????
????
????
????
???? /**?*/ /**
?????*?將java對象轉(zhuǎn)換成json字符串,并設(shè)定日期格式
?????*? @param ?javaObj
?????*? @param ?dataFormat
?????*? @return
????? */
???? public ? static ?String?getJsonString4JavaPOJO(Object?javaObj?,?String?dataFormat) ... {
????????
????????JSONObject?json;
????????JsonConfig?jsonConfig? = ?configJson(dataFormat);
????????json? = ?JSONObject.fromObject(javaObj,jsonConfig);
???????? return ?json.toString();
????????
????????
????}
????
????
????
???? /**?*/ /**
?????*? @param ?args
????? */
???? public ? static ? void ?main(String[]?args)? ... {
???????? // ?TODO?自動生成方法存根

????}
????
???? /**?*/ /**
?????*?JSON?時間解析器具
?????*? @param ?datePattern
?????*? @return
????? */
???? public ? static ?JsonConfig?configJson(String?datePattern)? ... {???
????????????JsonConfig?jsonConfig? = ? new ?JsonConfig();???
????????????jsonConfig.setExcludes( new ?String[] ... { "" } );???
????????????jsonConfig.setIgnoreDefaultExcludes( false );???
????????????jsonConfig.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT);???
????????????jsonConfig.registerJsonValueProcessor(Date. class ,???
???????????????? new ?DateJsonValueProcessor(datePattern));???
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