map建立JSONObject對象

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 1     public static void mapToJSONObject(){ 2         Map<String, Object> map = new HashMap<String,Object>(); 3         map.put("id", 1); 4         map.put("name", "楊文培"); 5         map.put("sex", null); 6         map.put("age", 23); 7         map.put("birthday", "1993-01-23"); 8         List<String> list = new ArrayList<String>(); 9         list.add("籃球");10         list.add("乒乓球");11         list.add("羽毛球");12         map.put("hobby", list);13         map.put("boo", false);14         JSONObject jsonObject = JSONObject.fromObject(map);15         System.out.println("map.toString()="+map.toString());16         System.out.println("jsonObject.toString()="+jsonObject.toString());17         try{18             Student student = (Student) JSONObject.toBean(jsonObject,Student.class);19             System.out.println("student="+student);20         }catch(ClassCastException exception){21             System.err.println("exception="+exception.getMessage());22         }23     }

 

map建立JSONObject對象