使用retrofit 2.0解析嵌套的json [英] Parse a nested json with retrofit 2.0
问题描述
我有这个JSON的,我想用改造解析它们。
{
status:true,
data:[
{
id:1,
title:Hi :),
text:< p> 121212< / p>,
cat_id:1,
username:admin,
coin:0,
datetime:1451508880,
isShow:1
},
{
id:3,
title:Hi :),
text :Hi :),
cat_id:2,
username:Hi :),
coin:20,
datetime:1451508880,
isShow:1
},
{
id:4,
title: a,
text:someText,
cat_id:1,
用户名:admin,
coin:10 ,
datetime:1451982292,
isShow:1
}
]
}
当json处于数组模式时,我的代码工作。但我的问题是如何解析嵌套的json像上面的示例?
在这里我的javaClass:(statusClass)
@SerializedName(status)
private String status;
@SerializedName(data)
private ArrayList< retroPost>数据;
// getters And Setters
}
(retroPost类)
public class retroPost {
@SerializedName(id)
private int ID;
@SerializedName(title)
私有字符串标题;
@SerializedName(text)
private String text;
@SerializedName(cat_id)
private int cat_id;
@SerializedName(datetime)
私有长日期时间;
// getters And Setters
}
(getPostInterface)
public interface getPost {
@GET(get / posts / all)
呼叫<列表< retroStatus>>的getPost();
$ / code>
(和mainCode)
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(http://mywebsite.it/api/)
.addConverterFactory(GsonConverterFactory。 create())
.build();
getPost postService = retrofit.create(getPost.class);
呼叫<列表< retroStatus>> call = postService.getPost();
回拨<列表< retroStatus>> callback = new Callback< list< retroStatus>>(){
@Override
public void onResponse(Response< List< retroStatus>> response,Retrofit retrofit){
if(response。 isSuccess()){
for(retroStatus status:response.body()){
Log.e(test,nowStatusIs:+ status.getStatus());
}
} else {
Log.e(test,Failed);
$ b @Override
public void onFailure(Throwable t){
Log.e(test ,onFailure);
}
};
call.enqueue(callback);
现在运行应用程序时,onFailure发生,但是如果主json只是在onejsonArray中,并且使用retroPost进行解析那工作是非常好的...我的错误是什么?
抱歉,坏的英语......
你的json的根节点不是数组,而是你在接口 getPost
中声明它为 List< responseStatus>
。所以你需要使用 responseStatus
来代替当前的。并使用gettter访问 data
@SerializedName(data)
private ArrayList< retroPost>数据;
这是数组
i have this json's and i want to use retrofit for parsing them.
{
"status": "true",
"data": [
{
"id": "1",
"title": "Hi :)",
"text": "<p>121212</p>",
"cat_id": "1",
"username": "admin",
"coin": "0",
"datetime": "1451508880",
"isShow": "1"
},
{
"id": "3",
"title": " Hi :)",
"text": "Hi :)",
"cat_id": "2",
"username": "Hi :)",
"coin": "20",
"datetime": "1451508880",
"isShow": "1"
},
{
"id": "4",
"title": "a",
"text": "someText",
"cat_id": "1",
"username": "admin",
"coin": "10",
"datetime": "1451982292",
"isShow": "1"
}
]
}
when that json is in array mode my code work. but my question is how parse nested json like above sample?
here my javaClass: (statusClass)
public class retroStatus {
@SerializedName("status")
private String status;
@SerializedName("data")
private ArrayList<retroPost> data;
//getters And Setters
}
(retroPost Class)
public class retroPost {
@SerializedName("id")
private int id;
@SerializedName("title")
private String title;
@SerializedName("text")
private String text;
@SerializedName("cat_id")
private int cat_id;
@SerializedName("datetime")
private long datetime;
//getters And Setters
}
(getPostInterface)
public interface getPost {
@GET("get/posts/all")
Call<List<retroStatus>> getPost();
}
(and mainCode)
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("http://mywebsite.it/api/")
.addConverterFactory(GsonConverterFactory.create())
.build();
getPost postService = retrofit.create(getPost.class);
Call<List<retroStatus>> call = postService.getPost();
Callback<List<retroStatus>> callback = new Callback<List<retroStatus>>() {
@Override
public void onResponse(Response<List<retroStatus>> response, Retrofit retrofit) {
if (response.isSuccess()) {
for (retroStatus status : response.body()) {
Log.e("test", "nowStatusIs: " + status.getStatus());
}
} else {
Log.e("test", "Failed");
}
}
@Override
public void onFailure(Throwable t) {
Log.e("test", "onFailure");
}
};
call.enqueue(callback);
now when run the app, onFailure happend but if main json just in onejsonArray and use just retroPost for parsing that thats work's very nice... what i mistake ?
sorry for bad english...
Root node of your json is not array, but you declared it as List<responseStatus>
at interface getPost
. So you need to use responseStatus
instead current one. And use gettter to access data
@SerializedName("data")
private ArrayList<retroPost> data;
which is array
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