Question

所以我正在使用 AsyncHttpClient 库解析Github用户数组。这个解析的结果是带有Json响应的String对象（它仍然是草稿）：

private String getResponse()
{
    AsyncHttpClient client=new AsyncHttpClient();
    RequestParams params=new RequestParams();
    params.put("since","0");
    client.get("https://api.github.com/users", params,
            new AsyncHttpResponseHandler() {

                @Override
                public void onFailure(int arg0, Header[] arg1, byte[] arg2,
                                      Throwable arg3) {

                }

                @Override
                public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {

                    try {
                        String content = new String(arg2, "UTF-8");
                        //content is json response that can be parsed.
                        response = content;
                    } catch (UnsupportedEncodingException e1) {
                        e1.printStackTrace();
                    }
                }
            });
    if (response.isEmpty())
        return "Users not found";
    else
        return response;
}

问题是如何从这个回复中解析？我的意思是，当你不知道Github用户api的结构时，你怎么做？我试图像这样解决这个问题：

private ArrayList<String> parseResponse (String response)
{

    try {
        JSONObject reader = new JSONObject(response);
        JSONObject nameObject = reader.getJSONObject("????"); //I don't know 
           //how that object is called since no idea about structure!
        name = nameObject.getString("name");

        userList.add(name);
    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return userList;
}

如何正确地迭代这个以获得每个用户？

提前致谢。

Answer 1

只需在浏览器中导航至https://api.github.com/users即可查看。

示例：

[ { "login": "", "id": 0, "avatar_url": "", "gravatar_id": "", "url": "", "html_url": "", "followers_url": "", "following_url": "", "gists_url": "", "starred_url": "", "subscriptions_url": "", "organizations_url": "", "repos_url": "", "events_url": "", "received_events_url": "", "type": "User", "site_admin": false }, {...} ]

您可以从[]看到顶级元素是JSONArray。因此，您需要获取此数组，然后在每个索引处访问JSONObject。

JSONArray users = new JSONArray(response); for(int i=0; i<users.length(); i++){ JSONObject user = users.getJSONObject(i); String login = user.getString("login"); }

Answer 2

要解析响应中每个用户的登录，您必须迭代JSONArray，如下所示：

try {
    JSONArray readerArray = new JSONArray(result);
    for(int i=0;i<readerArray.length();i++){
        JSONObject userObject = (JSONObject) readerArray.get(i);
        String login = userObject.getString("login");
        //add login to your ArrayList here
    }
   } catch (JSONException e) {
    e.printStackTrace();
   }

其中result是带有Json响应的字符串。

从Github的Json响应中解析用户列表

2 个答案: