Question

在Java中是否有一种方法可以从json中读取并直接将其值放入Collection中。在我的情况下，我有三种不同的类型。我可以做到：

Collection<Type> types;

JSON：

{
"type1":[
      {
        "version": "1.11",
        "releaseDate": "2015-03-26",
        "downloadUrl": "****"
      },
      {
        "version": "1.12",
        "releaseDate": "2015-04-08",
        "downloadUrl": "****"
      }],
"type2":[
      {
        "version": "2.20",
        "releaseDate": "2015-03-26",
        "downloadUrl": "****"
      },
      {
        "version": "2.21",
        "releaseDate": "2015-04-08",
        "downloadUrl": "****"
      }],
"type3":[
      {
        "version": "2.56",
        "releaseDate": "2015-03-26",
        "downloadUrl": "****"
      },
      {
        "version": "2.57",
        "releaseDate": "2015-04-08",
        "downloadUrl": "****"
      }]
}

Answer 1

您可以使用Gson轻松完成此操作。我根据您的要求（例如数据类型，约定等）给您基本的想法改变...

public class YourType{
 private String version;
 private String releaseDate;
 private String downloadUrl;
 // getter-setter
}

和

/* Code to convert JSON to Collection */
import java.lang.reflect.Type;
import com.google.gson.reflect.TypeToken;

Type objType = new TypeToken<List<YourType>>(){}.getType();
List<YourType> list = objGson.fromJson(yourJSONObject.getJSONArray("type1").toString(), objType);

如何在Java中解析JSON并将值放入Collection中

1 个答案: