Flickr的JSON解析Android中(Flickr JSON Parsing in Andro

2019-10-30 01:00发布

我想从这个URL解析JSON( http://api.flickr.com/services/feeds/photos_public.gne?format=json ),但该文档确实返回一个非有效的JSON。 看到

       jsonFlickrFeed({
        "title": "Uploads from everyone",
        "link": "http://www.flickr.com/photos/",
        "description": "",
        "modified": "2012-11-26T18:27:41Z",
        "generator": "http://www.flickr.com/",
        "items": [
       {
            "title": "2012 Thanksgiving Holiday Weekend",
            "link": "http://www.flickr.com/photos/agape_boarding_school/8220697785/",
            "media": {"m":"http://farm9.staticflickr.com/8478/8220697785_bb298ac5b3_m.jpg"},
            "date_taken": "2012-11-24T14:19:21-08:00",
            "description": " <p><a href=\"http://www.flickr.com/people/agape_boarding_school/\">Agape Boarding School<\/a> posted a photo:<\/p> <p><a href=\"http://www.flickr.com/photos/agape_boarding_school/8220697785/\" title=\"2012 Thanksgiving Holiday Weekend\"><img src=\"http://farm9.staticflickr.com/8478/8220697785_bb298ac5b3_m.jpg\" width=\"240\" height=\"159\" alt=\"2012 Thanksgiving Holiday Weekend\" /><\/a><\/p> <p>Great Day at Agape Boarding School<\/p>",
            "published": "2012-11-26T18:27:41Z",
            "author": "nobody@flickr.com (Agape Boarding School)",
            "author_id": "36563683@N07",
            "tags": "school boarding agape"
       },  ...

我想让我的分析器尽可能一般究竟什么是更好的方式来删除“jsonFlickrFeed(”文档的一部分,只与JSON它自身的工作?

public class JSONParser extends AsyncTask <String, Void, JSONObject> {

static InputStream is = null;
static JSONObject jObj = null;
static String json = "";

// constructor
public JSONParser() {

}

@Override
protected JSONObject doInBackground(String... params) {
    String url=params[0];

    // Making HTTP request
    try {
        // defaultHttpClient
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();           

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "iso-8859-1"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        json = sb.toString();
    } catch (Exception e) {
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }

    // try parse the string to a JSON object
    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }

    // return JSON String
    return jObj;
}

}

Answer 1:

我已经解决了通过给定的方式这个问题。

Flickr的旧的Web API是: http://api.flickr.com/services/feeds/photos_public.gne?id=xxxxxxxx&lang=en-us&format=json

Flickr的最新的网络API是: http://api.flickr.com/services/feeds/photos_public.gne?id=xxxxxxxx&lang=en-us&format=json&nojsoncallback=1

使用最新的一个网络API。

更换的用户ID,而不是XXXXXXXX。

希望它能对您有所帮助。



Answer 2:

看起来你想要的是日生JSON。 你要添加一个“nojsoncallback = 1”删除函数包装。

[见FLICKR JSON响应格式( https://forum.processing.org/one/topic/flickr-json-parsing-noob.html “如果你只是想生JSON,无功能包装”)



Answer 3:

正如你所说,你只会有你解析它之前删除字符串的这一部分。

如果你想成为更普遍的,你可以搜索第一{ char和之前删除一切,最后} char和后删除所有内容。 但是,这仍然不能确保输入是有效的。



文章来源: Flickr JSON Parsing in Android