gson

问题 I'm having some trouble with GSON, mainly deserializing from JSON to a POJO. I have the following JSON: { "events": [ { "event": { "id": 628374485, "title": "Developing for the Windows Phone" } }, { "event": { "id": 765432, "title": "Film Makers Meeting" } } ] } With the following POJO's ... public class EventSearchResult { private List<EventSearchEvent> events; public List<EventSearchEvent> getEvents() { return events; } } public class EventSearchEvent { private int id; private String title;

问题 Is there an easy way to convert how a nested Object is converted to JSON? I'm trying to just create one JSON object to match the back-end. I'm using Retrofit for my networking, which converts an Object to JSON with Gson. I don't have access to any code between network call and the convertion, so I'm trying to find a clean way to modify how the Object is converted, either through the GsonBuilder, or Annotations. // Automatically converted to JSON with passed in Gson. Call<myObject> search(

问题 I have a Map containing a mixture of types like in this simple example final Map<String, Object> map = new LinkedHashMap<String, Object>(); map.put("a", 1); map.put("b", "a"); map.put("c", 2); final Gson gson = new Gson(); final String string = gson.toJson(map); final Type type = new TypeToken<LinkedHashMap<String, Object>>(){}.getType(); final Map<Object, Object> map2 = gson.fromJson(string, type); for (final Entry<Object, Object> entry : map2.entrySet()) { System.out.println(entry.getKey()

问题 I have a Map containing a mixture of types like in this simple example final Map<String, Object> map = new LinkedHashMap<String, Object>(); map.put("a", 1); map.put("b", "a"); map.put("c", 2); final Gson gson = new Gson(); final String string = gson.toJson(map); final Type type = new TypeToken<LinkedHashMap<String, Object>>(){}.getType(); final Map<Object, Object> map2 = gson.fromJson(string, type); for (final Entry<Object, Object> entry : map2.entrySet()) { System.out.println(entry.getKey()

问题 I have several classes like this. I want to convert the classes into JSONObject format. import java.io.Serializable; import com.google.gson.annotations.SerializedName; public class User implements Serializable { private static final long serialVersionUID = 1L; @SerializedName("id") private Integer mId; @SerializedName("name") private String mName = ""; @SerializedName("email") private String mEmail; public Integer getId() { return mId; } public void setId(Integer id) { mId = id; } public

问题 So I have the following super class: public class Location { private String name; private double[] coordinates; private String description; } And the following subclasses: public class Monument extends Location { private String architect; private short inauguration; } public class Restaurant extends Location { private String[] characteristics; } public class Hotel extends Location { private short stars; } The JSON file I'm trying to deserialize is an array of Locations where each location can

问题 I'm trying to convert jsonArray with jsonObject by passing another jsonObject. Any sample code please? { "role": "CUSTOMER", "operationId": "updateHomePlace", "parameters": { "tcId": "f44015c8-d672-411b-a0f9-49cf9ef3f6b2", "otpVerification": "false", "password": "false", "homePlace": [{ "address": "MIG 528, KPHB 1st Phase,, Kukatpally Housing Board Colony, Kukatpally, Hyderabad, Telangana 500072, India", "lat": "17.4866943", "lng": "78.3994029" }] } } 回答1: Like this you can write POJO / Model

问题 First I know my title is bad as I didn't come up with better, I'm opened to suggestion. I'm using retrofit to get data from an api of this kind : @GET("users/{userid}") It works fine and I'm happy with it, the problem is when I call the same api with @POST("users/widget") with a list of ids. I have the following answer : { "long_hash_id": { "_id": "long_hash_id" ....... }, "long_hash_id": { "_id": "long_hash_id", ..... }, ........ } the "long_hash_id" is typicaly "525558cf8ecd651095af7954" it

问题 First I know my title is bad as I didn't come up with better, I'm opened to suggestion. I'm using retrofit to get data from an api of this kind : @GET("users/{userid}") It works fine and I'm happy with it, the problem is when I call the same api with @POST("users/widget") with a list of ids. I have the following answer : { "long_hash_id": { "_id": "long_hash_id" ....... }, "long_hash_id": { "_id": "long_hash_id", ..... }, ........ } the "long_hash_id" is typicaly "525558cf8ecd651095af7954" it

问题 So lets say the JSON response is: [{ "data" : { "item1": value1, "item2:" value2 }}] How do you get the values 'value1' and 'value2' when you must first access data? If the fields were at the root then I could just have the method return a POJO with those field names. I basically want the below to work. @GET("/path/to/data/") Pojo getData(); class Pojo { public String item1; public String item2; } 回答1: You can try below code to convert your json string to Pojo object with required fields