转载JSON Format（二）
转载http://blog.toright.com/?p=397
JSON Format
JSON為輕量級的資料表示格式，比起 XML 鬆散許多且不需要定義描述檔，JSON網站 http://json.org/
Json-lib API
Json-lib 為在眾多處理 Jsob Format API 中實作功能比較多的一個套件，可由下列網址取得。
http://json-lib.sourceforge.net/ 此外，Json-lib還需要以下 Library
jakarta commons-lang 2.4
jakarta commons-beanutils 1.7.0
jakarta commons-collections 3.2
jakarta commons-logging 1.1.1
ezmorph 1.0.6
JSON 與 POJO 轉換實作
設計兩個Model
Model.javaprivate String title;private int num;private Integer sort;private Date date;private String[] strArray;private SubModel subModel;SubModel.javaprivate String name;Marshal 實作Object2JSON.javaimport java.util.Date;import net.sf.json.JSONObject;public class Object2JSON {public static void main(String[] args) {//產生ModelModel model = new Model();model.setTitle("Master MOdel");model.setNum(99);model.setSort(10);model.setDate(new Date());model.setStrArray(new String[]{"str1","str2"});SubModel subModel = new SubModel();subModel.setName("MySubModel");model.setSubModel(subModel);//轉換為JSONString json = JSONObject.fromObject(model).toString();//顯示XMLSystem.out.println(json);}}Unmarshal 實作JSON2Object.javaimport net.sf.json.JSONObject;public class JSON2Object {public static void main(String[] args) {String json = "{"date":{"date":27,"day":2,"hours":15,"minutes":30,"month":9,"seconds":35,"time":1256628635421,"timezoneOffset":-480,"year":109},"num":99,"sort":10,"strArray":["str1","str2"],"subModel":{"name":"MySubModel"},"title":"Master MOdel"}";//轉換JavaBeanModel model = (Model)JSONObject.toBean( JSONObject.fromObject( json ), Model.class );//顯示內容System.out.println("Title:"+model.getTitle());System.out.println("Num:"+model.getNum());System.out.println("Sort:"+model.getSort());System.out.println("Date:"+model.getDate());System.out.println("SubModel:"+model.getSubModel());System.out.println("SubModel[Name]:"+model.getSubModel().getName());}}Json-lib 結論