如何使用带有可变对象名称的GSON解析JSON? "路线"对象具有相同的结构,但名称不同。它有许多不同的名称,因为它反映了旅行线路。我试图将它直接读到Java类(Android,Retrofit),但我不会为布达佩斯的所有旅行线创建单一类。是否有可能以某种方式阅读它?
{
"version": 2,
"status": "OK",
"code": 200,
"text": "OK",
"currentTime": 1448881433747,
"data": {
"limitExceeded": false,
"references": {
"routes": {
"BKK_9630": {
"id": "BKK_9630",
"shortName": "963",
"longName": null,
"description": "Hűvösvölgy | Nagykovácsi, Tisza István tér",
"type": "BUS",
"url": null,
"color": "1E1E1E",
"textColor": "FFFFFF",
"agencyId": "BKK",
"bikesAllowed": false
},
"BKK_0630": {
"id": "BKK_0630",
"shortName": "63",
"longName": null,
"description": "Hűvösvölgy | Nagykovácsi, Tisza István tér",
"type": "BUS",
"url": null,
"color": "009FE3",
"textColor": "FFFFFF",
"agencyId": "BKK",
"bikesAllowed": false
}
},
"trips": {},
"alerts": {}
}
}
}
完整的JSON响应: http://futar.bkk.hu/bkk-utvonaltervezo-api/ws/otp/api/where/search.json?query=Erd%C3%A9szh%C3%A1z
提前致谢!
答案 0 :(得分:2)
这是你的班级结构:
MyObject (主要对象):
public class MyObject{
private Integer version;
private String status;
private Integer code;
private Data data;
}
数据强>:
public class Data{
private boolean limitExceeded;
private References references;
}
<强>参考强>:
public class References{
private Map<String, Route> routes;
}
<强>路线强>:
public class Route{
private String shortName;
}
然后:
String json = "{'version':2,'status':'OK','code':200,'text':'OK','currentTime':1448881433747,'data':{'limitExceeded':false,'references':{'routes':{'BKK_9630':{'id':'BKK_9630','shortName':'963','longName':null,'description':'Hűvösvölgy | Nagykovácsi, Tisza István tér','type':'BUS','url':null,'color':'1E1E1E','textColor':'FFFFFF','agencyId':'BKK','bikesAllowed':false},'BKK_0630':{'id':'BKK_0630','shortName':'63','longName':null,'description':'Hűvösvölgy | Nagykovácsi, Tisza István tér','type':'BUS','url':null,'color':'009FE3','textColor':'FFFFFF','agencyId':'BKK','bikesAllowed':false}},'trips':{},'alerts':{}}}}";
Gson gson = new Gson();
MyObject fromJson = gson.fromJson( json, MyObject.class );
System.out.println( fromJson );
结果:
MyObject [version=2, status=OK, code=200, data=Data [limitExceeded=false, references=References [routes={BKK_9630=Route [shortName=963], BKK_0630=Route [shortName=63]}]]]
请注意,我没有写下你必须写的所有字段。另外,请不要忘记创建getter and setters
和toString
覆盖。