package com.handson.json;

import net.sf.json.*;
import java.util.*;

/**
* 将java的数据或对象转变成js可以用的数据或对象（json 服务器端实例）
* 
* @author brj
* 
*/
public class JSONTest {

/**
* 将Java中的数组转变成json中的数组
*/
public static void arrayToJson() {
   String[] kkname = { "CCED", "WPS", "WORD" };
   JSONArray jr = JSONArray.fromObject(kkname);
   System.out.println(jr);
   System.out.println("=========================================");
}

/**
* 将java的List中存的对象，转换成json中的对象数组
*/
public static void listToJson() {
   List<Book> bklist = new ArrayList<Book>();
   bklist.add(new Book("a1", "b", "111"));
   bklist.add(new Book("a2", "b", "111"));
   bklist.add(new Book("a3", "精通JAVA", "111"));
   JSONArray jr = JSONArray.fromObject(bklist);
   System.out.println(jr);
   System.out.println("=========================================");
}

/**
* 将json中的对象数组，转变成java中的List
*/
public static void createJson() {
   JSONArray jn = JSONArray
     .fromObject("[{name:'JAVA程序设计',isbn:'885596-99',author:'小东'},"
       + "{name:'Thinking in Java', isbn:'123456', author:'Bruce'},"
       + "{name:'VC++', isbn:'7-123-515', author:'Liming'}]");
   // 注意上面的字符串中，开头和结尾带 [ 或 ]
   // List a = (List) JSONArray.toList(jn, Book.class);//这种也可以，只是不推荐使用了
   List a = (List) JSONArray.toCollection(jn, Book.class);
   Book book = null;
   for (Iterator it = a.iterator(); it.hasNext();) {
    book = (Book) it.next();
    System.out.println(book.getName() + " - " + book.getAuthor()
      + " - " + book.getName());
   }
   System.out.println("=========================================");
}

/**
* map --> json
*/
public static void MapToJson() {
   Map map = new HashMap();
   map.put("name", "小裴");
   map.put("book", new Book("K语言程序设计", "李", "55588"));
   map.put("shoBookName", "function(){alert('测试')}");
   JSONObject jo = JSONObject.fromObject(map);
   System.out.println(jo);
   System.out.println("=========================================");
}

/**
* bean --> json
*/
public static void beanToJson() {
   JSONObject jo = JSONObject.fromObject(new Book("1", "3", "ABCd"));
   System.out.println(jo);
   System.out.println("=========================================");
}

/**
* json --> bean
*/
public static void jsonToBean() {
   JSONObject jo = JSONObject
     .fromObject("{name:'C++程序设计',isbn:'885596-989',author:'小东'}");
   Book book = (Book) JSONObject.toBean(jo, Book.class);
   System.out.println(book.getAuthor() + "-" + book.getName());
   System.out.println("=========================================");
}

/**
* bean --> json
*/
public static void beanToJson2() {
   Book book = new Book("isbn-1111", "Thinking in java", "Bruce");
   Publisher publisher = new Publisher("1001", "中国机械工业出版社", "北京",
     "010-111111");
   book.setPublisher(publisher);
   // JSONObject jo = JSONObject.fromObject(book);
   // //{"author":"Bruce","isbn":"isbn-1111","name":"Thinking in
   // java","publisher":{"address":"北京","code":"1001","name":"中国机械工业出版社","telephone":"010-111111"}}
   JSONArray jo = JSONArray.fromObject(book); // [{"author":"Bruce","isbn":"isbn-1111","name":"Thinking
   // in
   // java","publisher":{"address":"北京","code":"1001","name":"中国机械工业出版社","telephone":"010-111111"}}]

   System.out.println(jo);
   System.out.println("=========================================");
}

/**
* json --> bean
*/
public static void jsonToBean2() {
   // String json = "[{'author':'Bruce','isbn':'isbn-1111','name':'Thinking
   // in
   // java','publisher':{'address':'北京','code':'1001','name':'中国机械工业出版社','telephone':'010-111111'}}]";
   String json = "{'author':'Bruce','isbn':'isbn-1111','name':'Thinking in java','publisher':{'address':'北京','code':'1001','name':'中国机械工业出版社','telephone':'010-111111'}}";
   JSONObject jo = JSONObject.fromObject(json);
   // JSONArray jo = JSONArray.fromObject(json);
   // List list = (List)jo.toCollection(jo, Book.class);
   // Book book = (Book)list.get(0);
   Book book = (Book) JSONObject.toBean(jo, Book.c