從Facebook解析Java中的JSON數據圖形響應

這裏我有一個來自Facebook服務器的響應，返回選定用戶的相冊列表。我想創建一個標有「名」和「鏈接」和「cover_photo」要準備好所有的專輯名稱的數組來加工成一個列表視圖從Facebook解析Java中的JSON數據圖形響應

{ 
    "data": [ 
    { 
     "id": "664462156031", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Mobile Uploads", 
     "link": "https://www.facebook.com/album.php?fbid=664462156031&id=68004222&aid=2081375", 
     "cover_photo": "754991180141", 
     "count": 88, 
     "type": "mobile", 
     "created_time": "2012-05-12T00:38:14+0000", 
     "updated_time": "2013-11-04T20:45:08+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "813288706431", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Bitstrips Photos", 
     "link": "https://www.facebook.com/album.php?fbid=813288706431&id=68004222&aid=1073741826", 
     "cover_photo": "813288781281", 
     "count": 1, 
     "type": "app", 
     "created_time": "2013-10-31T21:53:11+0000", 
     "updated_time": "2013-10-31T21:53:15+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "757384214481", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Galveston Vacation 2013", 
     "description": "Our trip before joining Air Force", 
     "link": "https://www.facebook.com/album.php?fbid=757384214481&id=68004222&aid=1073741825", 
     "cover_photo": "757221350861", 
     "count": 8, 
     "type": "normal", 
     "created_time": "2013-05-15T18:37:19+0000", 
     "updated_time": "2013-05-15T22:12:52+0000", 
     "can_upload": false, 
     "likes": { 
     "data": [ 
      { 
      "id": "100002572634186", 
      "name": "Misty O'Quain" 
      }, 
      { 
      "id": "100000582072776", 
      "name": "Clifford Joyce" 
      }, 
      { 
      "id": "1045514613", 
      "name": "Caity Ellender" 
      } 
     ], 
     "paging": { 
      "cursors": { 
      "after": "MTA0NTUxNDYxMw==", 
      "before": "MTAwMDAyNTcyNjM0MTg2" 
      } 
     } 
     } 
    }, 
    { 
     "id": "542202136091", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Profile Pictures", 
     "link": "https://www.facebook.com/album.php?fbid=542202136091&id=68004222&aid=2054735", 
     "cover_photo": "749743202131", 
     "count": 20, 
     "type": "profile", 
     "created_time": "2010-09-02T04:43:32+0000", 
     "updated_time": "2013-04-13T13:46:14+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "646032913381", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Cover Photos", 
     "link": "https://www.facebook.com/album.php?fbid=646032913381&id=68004222&aid=2079483", 
     "cover_photo": "681058471881", 
     "count": 2, 
     "type": "cover", 
     "created_time": "2012-03-22T00:25:50+0000", 
     "updated_time": "2012-07-17T15:26:24+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "599115930391", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Timeline Photos", 
     "link": "https://www.facebook.com/album.php?fbid=599115930391&id=68004222&aid=2073818", 
     "cover_photo": "599115935381", 
     "count": 1, 
     "type": "wall", 
     "created_time": "2011-10-20T14:25:23+0000", 
     "updated_time": "2011-10-20T14:25:23+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "551798524851", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "My Year - 2010", 
     "link": "https://www.facebook.com/album.php?fbid=551798524851&id=68004222&aid=2060899", 
     "cover_photo": "551798544811", 
     "count": 1, 
     "type": "normal", 
     "created_time": "2010-12-19T05:11:51+0000", 
     "updated_time": "2010-12-19T05:12:14+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "522841060841", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "Night Lightnin", 
     "description": "Always wanted to do this, because lightning is way cooler at night. Perhaps next time I'll be able to refine my methods a little. Read as \"bring tripod so you don't have to prop cam up on roof of car\"", 
     "location": "Just north of Sulphur", 
     "link": "https://www.facebook.com/album.php?fbid=522841060841&id=68004222&aid=2036447", 
     "cover_photo": "522841195571", 
     "count": 15, 
     "type": "normal", 
     "created_time": "2009-09-16T04:38:43+0000", 
     "updated_time": "2009-09-16T04:42:32+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "513270939441", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "The Stuff That Doesn't Make Another Album", 
     "description": "See title.", 
     "location": "Good question", 
     "link": "https://www.facebook.com/album.php?fbid=513270939441&id=68004222&aid=2029083", 
     "cover_photo": "513271029261", 
     "count": 9, 
     "type": "normal", 
     "created_time": "2009-03-03T06:43:09+0000", 
     "updated_time": "2009-04-01T02:20:22+0000", 
     "can_upload": false, 
     "comments": { 
     "data": [ 
      { 
      "id": "513270939441_3444", 
      "from": { 
       "name": "Misty Bylsma Royal", 
       "id": "592607110" 
      }, 
      "message": "I love how the beautiful lady pile is in the same album as the bull pics. Nice.", 
      "can_remove": false, 
      "created_time": "2009-03-03T22:37:18+0000", 
      "like_count": 0, 
      "user_likes": false 
      }, 
      { 
      "id": "513270939441_3451", 
      "from": { 
       "name": "Nate Ellender", 
       "id": "68004222" 
      }, 
      "message": "Only because they are both things that i only had a few pictures of.", 
      "can_remove": false, 
      "created_time": "2009-03-04T02:46:11+0000", 
      "like_count": 0, 
      "user_likes": false 
      } 
     ], 
     "paging": { 
      "cursors": { 
      "after": "Mg==", 
      "before": "MQ==" 
      } 
     } 
     } 
    }, 
    { 
     "id": "511605661671", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "What the...?", 
     "description": "What's wrong with the rain? It's flaky and piles up on stuff... Did the plants leak something?\n", 
     "location": "Outside", 
     "link": "https://www.facebook.com/album.php?fbid=511605661671&id=68004222&aid=2026641", 
     "cover_photo": "511605681631", 
     "count": 54, 
     "type": "normal", 
     "created_time": "2008-12-11T11:59:27+0000", 
     "updated_time": "2008-12-13T18:06:00+0000", 
     "can_upload": false 
    }, 
    { 
     "id": "511565886381", 
     "from": { 
     "name": "Nate Ellender", 
     "id": "68004222" 
     }, 
     "name": "The Christmas Tree Farm", 
     "description": "An Ellender Tradition", 
     "location": "Grant", 
     "link": "https://www.facebook.com/album.php?fbid=511565886381&id=68004222&aid=2026590", 
     "cover_photo": "511566170811", 
     "count": 19, 
     "type": "normal", 
     "created_time": "2008-12-09T02:38:54+0000", 
     "updated_time": "2008-12-09T02:55:21+0000", 
     "can_upload": false 
    } 
    ], 
    "paging": { 
    "cursors": { 
     "after": "NTExNTY1ODg2Mzgx", 
     "before": "NjY0NDYyMTU2MDMx" 
    } 
    } 
}

而且，這裏是JSON數據是返回（響應）。我將需要開始解析響應下的數據。

  Session.NewPermissionsRequest np = new Session.NewPermissionsRequest(this, "friends_photos"); 
      Session.getActiveSession().requestNewReadPermissions(np); 
      Request rq = new Request(Session.getActiveSession(), userID + "/albums", null, HttpMethod.GET, new Request.Callback() { 

       @Override 
       public void onCompleted(Response response) { 

       } 
      }); 
      rq.executeAsync();

任何示例都會有幫助。我想研究這些代碼以更好地理解解析json數據。

來源

2013-11-14 Garren Fitzenreiter

你可以得到如何在這裏做一個很好的例子：http://www.androidhive.info/2012/01/android-json-parsing-tutorial/

基本上，你必須使用JSONObject和JSONArray，您可以從getJSONObject()和getJSONArray()得到。一旦您處於最佳位置，請使用getJSONString()來獲得所需的值。

你的情況，這將是這樣的：

JSONObject json = new JSONObject(response) 
JSONArray jarray = json.getJSONArray("data"); 
for(int i = 0; i < jarray.length(); i++){ 
    JSONObject oneAlbum = jarray.getJSONObject(i); 
    //get your values 
    oneAlbum.getJSONString("name"); // this will return you the album's name. 
}

希望這會幫助你。

來源

2013-11-14 11:09:13

這將使用JSONObject的JSON = jParser.getJSONFromUrl（URL）來獲取JSON數據。我如何確定要在回調中作爲響應解析的數據？ –

你可以使用'json = new JSONObject（response）;''其中'response'是一個String和你的json。 –

正是我想要的，一個簡短的例子。謝謝！ –

試試這個

  Session.NewPermissionsRequest np = new Session.NewPermissionsRequest(this, "friends_photos"); 
      Session.getActiveSession().requestNewReadPermissions(np); 
      Request rq = new Request(Session.getActiveSession(), userID + "/albums", null, HttpMethod.GET, new Request.Callback() { 

       @Override 
       public void onCompleted(Response response) { 
        JSONArray albumArr = response.getGraphObject().getInnerJSONObject().getJSONArray("data"); 

        for (int i = 0; i < albumArr.length(); i++) { 
         JSONObject item = albumArr.getJSONObject(i); 
         System.out.println("id : " + item.getString("id")); 
         System.out.println("fromName : " + item.getJSONObject("from").getString("name")); 
         System.out.println("fromid : " + item.getJSONObject("from").getString("id")); 
         System.out.println("link : " + item.getString("link")); 
         System.out.println("cover_photo : " + item.getString("cover_photo")); 
         System.out.println("count : " + item.getString("count")); 
         System.out.println("created_time : " + item.getString("created_time")); 
         System.out.println("updated_time : " + item.getString("updated_time")); 
         System.out.println("can_upload : " + item.getString("can_upload")); 

        } 

       } 
      }); 
      rq.executeAsync();

來源

2013-11-14 11:17:14

從Facebook解析Java中的JSON數據圖形響應

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