JAVA之JSON对象解析 

 1 //第一种 
 2 public static void jsonTx() { 
 3 String json = "{'status':200,'message':'查询成功','data':[{'id':1,'name':'name1','describe':'第一条数据'}]}"; 
 4 JSONObject data = JSONObject.fromObject(json); 
 5 int status = data.optInt("status"); 
 6 JSONArray data1 = data.getJSONArray("data"); 
 7 if (status==200) { 
 8 for(int i=0;i<data1.size();i++){ 
 9 String s = data1.getString(i); 
10 System.out.println(s); 
11 JSONObject data2 = JSONObject.fromObject(s); 
12 System.out.println(data2.getString("id")); 
13 System.out.println(data2.getString("name")); 
14 System.out.println(data2.getString("describe")); 
15 } 
16 }else if(status==500) { 
17 String msg = data.getString("message"); 
18 System.out.println(msg);
19 } 
20 }
21 
22  
23 
24 //第二种
25 public static void getJson() {
26 String json = "{'response':{'data':[{'address':'北京','province':'海淀','district':'西三旗','city':'地铁'}]},'status':'ok'}";
27 String json1 = "[{\"TaskID\":3,\"Mobile\":\"13789679619\",\"Status\":5,\"ReportTime\":\"2015-06-24T15:52:54.73\",\"ReportCode\":\"S:终止\"},{\"TaskID\":4,\"Mobile\":\"13789679618\",\"Status\":4,\"ReportTime\":\"2015-06-24T16:32:35.583\",\"ReportCode\":\"成功\"}]";
28 
29 String string = "[{\"depid\":\"5\",\"score\":\"10\"},{\"depid\":\"4\",\"score\":\"40\"},{\"depid\":\"4\",\"score\":\"30\"},{\"depid\":\"5\",\"score\":\"30\"}]";
30 
31 JSONArray jsonArray11 = new JSONArray();
32 JSONObject jsonObject = JSONObject.fromObject(json); 
33 String status = jsonObject.getString("status");
34 // System.out.println(str);   
35 String response = jsonObject.getString("response");
36 JSONObject jsonObject2 = JSONObject.fromObject(response);
37 JSONArray data = jsonObject2.getJSONArray("data"); 
38 for(int i=0;i<data.size();i++){
39 String s = data.getString(i);
40 JSONObject data2 = JSONObject.fromObject(s); 
41 System.out.println(data2.getString("address")); 
42 System.out.println(data2.getString("province")); 
43 System.out.println(data2.getString("district")); 
44 System.out.println(data2.getString("city")); 
45 }
46 
47 //解析第二个
48 JSONArray jsonObject1 = JSONArray.fromObject(json1); 
49 for(int i=0;i<jsonObject1.size();i++){
50 String s = jsonObject1.getString(i);
51 JSONObject data2 = JSONObject.fromObject(s); 
52 System.out.println(data2.getString("TaskID")); 
53 System.out.println(data2.getString("Mobile")); 
54 System.out.println(data2.getString("Status")); 
55 System.out.println(data2.getString("ReportTime")); 
56 System.out.println(jsonArray11.size()); 
57 }
58 System.out.println("*******************");
59 //解析第三个
60 JSONArray fromObject = JSONArray.fromObject(string);
61 Map<String,Integer> map = new HashMap<String, Integer>();
62 
63 for (Object object : fromObject)
64 {
65 JSONObject jsonObject3 = (JSONObject) object;
66 String depid = (String)jsonObject3.get("depid");
67 Integer score = Integer.valueOf((String)jsonObject3.get("score"));
68 if (map.containsKey(depid))
69 {
70 int integer = map.get(depid);
71 map.put(depid, integer+score);
72 }
73 else
74 {
75 map.put(depid, score);
76 }
77 }
78 Set<Entry<String, Integer>> entrySet = map.entrySet();
79 JSONArray jsonArray = new JSONArray();
80 
81 for (Entry<String, Integer> entry : entrySet)
82 {
83 JSONObject jsonObject4 = new JSONObject();
84 jsonObject4.put("depid",entry.getKey());
85 jsonObject4.put("score",String.valueOf(entry.getValue()));
86 jsonArray.add(jsonObject4);
87 }
88 System.out.println(jsonArray.toString());
89 }

转自:https://www.cnblogs.com/QQParadise/articles/5558816.html

posted @ 2018-10-19 13:59  闻长歌而知雅意  阅读(570)  评论(0)    收藏  举报