json实例

json实例

package  test;

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

public   class  JsonDemo {
     public   static   void  arraytojson(){
        String[] kkname = { " CCED " , " WPS " , " WORD " };
        JSONArray jr = JSONArray.fromObject(kkname);
        System.out.println(jr);

    }
    
     public   static   void  list2json(){
        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);
    }
     public   static   void  createJson(){
        JSONArray jn = JSONArray.fromObject( " [{bookname:'JAVA程序设计',isbn:'885596-99',author:'小东'}] " ); // 开头和结尾带[]
        List a = JSONArray.toList(jn, Book. class );
        Book book = null ;
         for (Iterator it = a.iterator();it.hasNext();){
            book = (Book)it.next();
            System.out.println(book.getAuthor() + " - " + book.getBookname());
        }
    }
     public   static   void  Map2Json(){
        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);
    }
    
     public   static   void  bean2json(){
        JSONObject jo = JSONObject.fromObject( new  Book( " 1 " , " 3 " , " ABCd " ));
        System.out.println(jo);
    }
     public   static   void  json2bean(){
        JSONObject jo = JSONObject.fromObject( " {bookname:'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.getBookname());
        
    }
     public   static   void  main(String[] args) throws  Exception{
        arraytojson();
        list2json();
        createJson();
        Map2Json();
        json2bean();
    }
}