我有这样的POJO
public class Pojo {
...
public static String toJson(ArrayList<Pojo> pojos) {
Gson gson = new Gson();
return gson.toJson(pojos);
}
}
输出结果为:
[
{
"arrival": "19:12:30",
"typeOfDay": "regular",
"stopCode": "CMPZ",
"route": "B",
"id": 1
},
{
"arrival": "19:13:30",
"typeOfDay": "regular",
"stopCode": "AVSV",
"route": "B",
"id": 2
}
]
但我想要的是:
{
"pojos": [
{
"arrival": "19:12:30",
"typeOfDay": "regular",
"stopCode": "CMPZ",
"route": "B",
"id": 1
},
{
"arrival": "19:13:30",
"typeOfDay": "regular",
"stopCode": "AVSV",
"route": "B",
"id": 2
}
]
}
我怎么做?我正在使用Gson 2.2.4
答案 0 :(得分:1)
像这样改变你的方法:
public static String toJson(List<Pojo> pojos) {
Gson gson = new Gson();
Map m = new TreeMap();
m.put("pojos", pojos);
return gson.toJson(m);
}
BTW,请注意我更改了签名,更喜欢界面(List
)而不是实现(ArrayList
)到您的方法中。
答案 1 :(得分:-1)
我不知道Gson是什么,但我想这样的东西会起作用......
return gson.toJson({pojos:pojos});