我试图在
Android应用程序中创建一个JSON字符串.
JSONArray jArrayFacebookData = new JSONArray();
JSONObject jObjectType = new JSONObject();
// put elements into the object as a key-value pair
jObjectType.put("type","facebook_login");
jArrayFacebookData.put(jObjectType);
// 2nd array for user information
JSONObject jObjectData = new JSONObject();
// Create Json Object using Facebook Data
jObjectData.put("facebook_user_id",id);
jObjectData.put("first_name",first_name);
jObjectData.put("last_name",last_name);
jObjectData.put("email",email);
jObjectData.put("username",username);
jObjectData.put("birthday",birthday);
jObjectData.put("gender",gender);
jObjectData.put("location",place);
jObjectData.put("display_photo",display_photo_url);
jArrayFacebookData.put(jObjectData);
这会创建一个像这样的字符串
[
{
"type":"facebook_login"
},{
"birthday":"06\/22\/1986","first_name":"Harsha","username":"harshamv","location":"Bangalore,India","email":"hmv2206@gmail.com","last_name":"Mv","gender":"male","facebook_user_id":"1423671254","display_photo":"http:\/\/graph.facebook.com\/1423671254\/picture?type=large"
}
]
我想创建一个像这样的JSON字符串
[
"system":{
"type":"facebook_login"
},"data":{
"birthday":"06\/22\/1986","display_photo":"http:\/\/graph.facebook.com\/1423671254\/picture?type=large"
}
]
解决方法
JSONObject jArrayFacebookData = new JSONObject();
JSONObject jObjectType = new JSONObject();
// put elements into the object as a key-value pair
jObjectType.put("type","facebook_login");
jArrayFacebookData.put("system",jObjectType);
// 2nd array for user information
JSONObject jObjectData = new JSONObject();
// Create Json Object using Facebook Data
jObjectData.put("facebook_user_id",display_photo_url);
jArrayFacebookData.put("data",jObjectData);
这将给你jsonObject,但不是数组,我没有看到使用JSONArray的任何意义.在这种情况下,JSONObject更好.您将看到以下输出为String
{
"system":{
"type":"facebook_login"
},"display_photo":"http:\/\/graph.facebook.com\/1423671254\/picture?type=large"
}
}
