java - How parse internal array json -

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• why gson fromjson throw jsonsyntaxexception: expected type other type? 2 answers

i have json:

{   "id": 1,   "result": [     {       "id": 1,       "imgurl": "http://test.com/image.jpg",       "title": "image"     },     {       "id": 2,       "imgurl": "http://test.com/image2.jpg",       "title": "image2"     }    ],   "jsonrpc": "2.0" } 

how can parse internal array, try default retroif gson parsing using model

public class testrequest {      public int id;     public list<arrayitems> result;     public string jsonrpc;     }  public class item {     public int id;    public string imgurl;    public string title; } 

and have error: expected begin_object begin_array. try hand parse

item[] items = gson.fromjson(json, item[].class); 

and have error:

expected begin_array begin_object.

what have do?

main problem have list<item> in pojo , pass item[].class parser, not match.

item[] items = gson.fromjson(json, item[].class); //                                 ↑ here!!!! 

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anyway, imho not right way should parse json.

• you have json response main object containing 3 tags (id result , jsonrpc).
• you created java pojos representing main object (testrequest)

soooooooo....

use it!

according this, if parse main object have json content.

testrequest data = gson.fromjson(reader, testrequest.class); 

now, lets test it, have friendly output, override item::tostring() in way:

class item {      public int id;     public string imgurl;     public string title;      @override     public string tostring() {         return this.id + "-" + this.title;     } } 

and tested using main method:

final string file_path      = "c:\\tmp\\38830664.json"; // use own!!!  gson gson = new gson(); jsonreader reader = new jsonreader(new filereader(file_path)); testrequest data = gson.fromjson(reader, testrequest.class);  (item :data.result)     system.out.println(i); 

output:

1-image 2-image2