如何使用领域来分析一个大JSON和存储数据 [英] How I can use Realm to parse a large JSON and storing data
问题描述
J'm真正进入受阻解析和使用领域存储数据,我有一个大的JSON和我创造所有的类模型,如境界的例子。
J'm really blocked into parsing and storing data using Realm,I have a large JSON and I creat all the class models like the example of RealM.
这是我的错误:产生的原因:org.json.JSONExcept
离子:在io.realm.exceptions.RealmException值0 FR:无法
地图的Json
在io.realm.Realm.createObjectFromJson(Realm.java:860)
在com.example.volleyapp2.ImagesActivity $ ImagesFragment.loadData(ImagesActivity.java:179)
在com.example.volleyapp2.ImagesActivity $ ImagesFragment $ 2.onResponse(ImagesActivity.java:133)
在com.example.volleyapp2.ImagesActivity $ ImagesFragment $ 2.onResponse(ImagesActivity.java:127)
在com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
在com.android.volley.ExecutorDelivery $ ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
在android.os.Handler.handleCallback(Handler.java:615)
在android.os.Handler.dispatchMessage(Handler.java:92)
在android.os.Looper.loop(Looper.java:137)
在android.app.ActivityThread.main(ActivityThread.java:4921)
在java.lang.reflect.Method.invokeNative(本机方法)
在java.lang.reflect.Method.invoke(Method.java:511)
在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:1027)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
在dalvik.system.NativeStart.main(本机方法)
org.json.JSONException:所致值Fr在java.lang.String类型的0不能被转换为JSONObject的
this is my error :Caused by: org.json.JSONExcept ion: Value fr at 0 of io.realm.exceptions.RealmException: Could not map Json at io.realm.Realm.createObjectFromJson(Realm.java:860) at com.example.volleyapp2.ImagesActivity$ImagesFragment.loadData(ImagesActivity.java:179) at com.example.volleyapp2.ImagesActivity$ImagesFragment$2.onResponse(ImagesActivity.java:133) at com.example.volleyapp2.ImagesActivity$ImagesFragment$2.onResponse(ImagesActivity.java:127) at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65) at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4921) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1027) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794) at dalvik.system.NativeStart.main(Native Method) Caused by: org.json.JSONException: Value fr at 0 of type java.lang.String cannot be converted to JSONObject
我的功能来查看数据
public void viewData(){
RealmResults<ApplicationBean> im = realm.where(ApplicationBean.class).findAll();
if(im.size()==0){Log.e("size de im = "+im.size()," ****");}
else { for (int i = 0; i <im.size() ; i++) {
Log.e("title = "+im.get(i).getId()," of pic");
}
}
}
和这是我函数来分析JSON
and this my function to parse JSON
public List<ApplicationBean> loadData(JSONObject obj) throws IOException, JSONException {
if (obj.length() == 0) {
Toast.makeText(getActivity(), "objet JSON est vide ! ", Toast.LENGTH_SHORT).show();
}
realm.beginTransaction();
realm.createObjectFromJson(ApplicationBean.class, obj);
realm.commitTransaction();
return realm.allObjects(ApplicationBean.class);
}
}
和这是我的类模型MyString的:
and this my class model MyString :
public class MyString extends RealmObject {
@PrimaryKey
private int id;
private String myString;
public MyString() {
}
public MyString(int id, String myString) {
this.id = id;
this.myString = myString;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getMyString() {
return myString;
}
public void setMyString(String myString) {
this.myString = myString;
}
}
我用这个链接: https://github.com/realm/realm-java /问题/ 575
创建ReamlList到remplace列表和我不能修改我的JSON
I used this link : https://github.com/realm/realm-java/issues/575 to create ReamlList to remplace List and I can't modify my JSON
推荐答案
服务器目前不支持基本数组。你JSON有这样的:
Realm currently doesn't support primitive arrays. You JSON has this:
语言:FR,恩]
有关领域的JSON自动映射到MyString的类它必须被转换为这样的事:
For Realm to automatically map the JSON to your MyString class it would have to be converted to something like this:
语言:[{海峡:FR},{海峡:恩}]
您也可以找到有关此GitHub上的更多信息: https://github.com /境界/境界-的Java /问题/ 575
You can also find more information about this on GitHub: https://github.com/realm/realm-java/issues/575
这篇关于如何使用领域来分析一个大JSON和存储数据的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!