用fastjson解析嵌套json数据

爱被打了一巴掌 2021-09-15 16:18 663阅读 0赞

json数据类似：

1.  \{
2.  "code": 0,
3.  "data": \{
4.  "city": \{
5.  "cityId": 284609,
6.  "counname": "中国",
7.  "name": "东城区",
8.  "pname": "北京市"
9.  \},
10. "liveIndex": \{
11. "2016-09-01": \[
12. \{
13. "day": "2016-09-01",
14. "desc": "建议用露质面霜打底，水质无油粉底霜，透明粉饼，粉质胭脂。",
15. "name": "化妆指数",
16. "status": "控油"
17. \},
18. \{
19. "day": "2016-09-01",
20. "desc": "感冒容易发生，少去人群密集的场所有利于降低感冒的几率。",
21. "name": "感冒指数",
22. "status": "易发"
23. \},
24. \{
25. "day": "2016-09-01",
26. "desc": "洗车后，可保持2天车辆清洁，比较适宜洗车。",
27. "name": "洗车指数",
28. "status": "较适宜"
29. \},
30. \{
31. "day": "2016-09-01",
32. "desc": "易感人群应适当减少室外活动。",
33. "name": "空气污染扩散指数",
34. "status": "中"
35. \},
36. \{
37. "day": "2016-09-01",
38. "desc": "天气较热，衣物精干简洁，室内酌情添加空调衫。",
39. "name": "穿衣指数",
40. "status": "热"
41. \},
42. \{
43. "day": "2016-09-01",
44. "desc": "辐射较弱，涂擦SPF12-15、PA+护肤品。",
45. "name": "紫外线指数",
46. "status": "弱"
47. \},
48. \{
49. "day": "2016-09-01",
50. "desc": "天气较好，且紫外线辐射不强，适宜户外运动。",
51. "name": "运动指数",
52. "status": "适宜"
53. \},
54. \{
55. "day": "2016-09-01",
56. "desc": "气压小幅波动，可能会影响鱼儿的进食。",
57. "name": "钓鱼指数",
58. "status": "较适宜"
59. \}
60. \]
61. \}
62. \},
63. "msg": "success",
64. "rc": \{
65. "c": 0,
66. "p": "success"
67. \}
68. \}

先导入fastjson依赖:

1.  & lt;!-- https: //mvnrepository.com/artifact/com.alibaba/fastjson --& gt;
2.  & lt;dependency& gt;
3.  & lt;groupId& gt;com.alibaba& lt; /groupId>
4.   <artifactId>fastjson</artifactId& gt;
5.  & lt;version& gt; 1.2. 33& lt; /version>
6.   </dependency& gt;

java拿出需要的数据:

1.  public static City getCity(String json)\{
2.  JSONObject jsonObject = (JSONObject) JSONObject.parseObject(json)
3.  .getJSONObject( "data")
4.  .getJSONObject( "city");
5.  City city = new City();
6.  city.setCityId(Integer.parseInt(String.valueOf(jsonObject.get( "cityId"))));
7.  city.setCityName((String) jsonObject.get( "pname"));
8.  city.setCunName((String)jsonObject.get( "counname"));
9.  city.setDistrictName((String)jsonObject.get( "name"));
10. return city;
11. \}
12. 
13. public static List<Life> getLife(String lifeJson)\{
14. List list = new ArrayList();
15. JSONObject jsonObject = (JSONObject) JSONObject.parseObject(lifeJson)
16. .getJSONObject( "data")
17. .getJSONObject( "liveIndex");
18. JSONArray jsonArray = jsonObject.getJSONArray(getFormatDate());
19. for( int i = 0; i < 8; i++)\{
20. Life life = new Life();
21. life.setDay( new Date());
22. life.setDesc(jsonArray.getJSONObject(i).getString( "desc"));
23. life.setName(jsonArray.getJSONObject(i).getString( "name"));
24. life.setStatus(jsonArray.getJSONObject(i).getString( "status"));
25. life.setCity(getCity(lifeJson));
26. list.add(life);
27. \}
28. return list;
29. \}

https://blog.csdn.net/eddie233/article/details/73730283

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