json的基本用法

public void jsonTest(){
//创建一JSON
JSONObject object=new JSONObject();
//添加值
object.put("name", "张三");
object.put("sex", "男");
System.out.println(object);
//根据键得到值
Object str = object.get("name");
System.out.println("name:"+str);

//将Item转换为Array
JSONArray jsonArray=JSONArray.fromObject("");
for (int i=0;i<jsonArray.size();i++) {
JSONObject jb = jsonArray.getJSONObject(i);
jb.get("");
}

//判读输出对象的类型  
        boolean isArray = object.isArray();  
        boolean isEmpty = object.isEmpty();  
        boolean isNullObject = object.isNullObject();
        System.out.println("Array:"+isArray+";----Empty:"+isEmpty+";---NullObject:"+isNullObject);
       
        //添加属性  
        object.element("address", "福建省厦门市");  
        System.out.println("添加的属性值为==>"+object.get("address"));
       
        //把字符转换为 JSONObject
        String temp=object.toString();
        JSONObject ss = JSONObject.fromObject(temp);
        System.out.println("转换为字符串后的JSON对象"+ss);
}