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我在为我的java代码中的每个循环做一个麻烦。我可以得到单个json结果,但是如何在此代码中为每个循环使用a?android java:foreach通过json数组返回值?
有人可以帮助我吗?
public JSONObject feedTimeline(String username) throws ClientProtocolException, IOException, JSONException{
StringBuilder url = new StringBuilder(URL);
url.append(username);
HttpGet get = new HttpGet(url.toString());
HttpResponse response = client.execute(get);
int status = response.getStatusLine().getStatusCode();
if(status == 200){
HttpEntity e = response.getEntity();
String data = EntityUtils.toString(e);
JSONArray timeline = new JSONArray(data);
for (int i = 0; i < timeline.length(); i++) {
JSONObject value= timeline.getJSONObject(i); //no error if this i is 0 and without for each loop
return value; //getting errors because of this return tweets
}
}else{
Toast.makeText(Feed.this,"error",Toast.LENGTH_SHORT);
return null;
}
}
public class Read extends AsyncTask<String, Integer, String>{
@Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
try {
json = feedTimeline("name");
return json.getString(params[0]); //this would need to change I assume?
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
我得到JSONObject的feedTimeline错误...如果我有for循环。但是如果我将其用于循环输出,而不是在JSONObject value = timeline.getJSONObject(i)
中具有i
并且具有0
或1
等数值,则它会输出。
此外,我相信在类读,return json.getString(params[0])
也需要工作在循环?我对JAVA真的很陌生,我试图自己学习所有东西。
预先感谢您!
字符串值= timeline.getJSONString(“你的字符串名”) – 2012-02-26 18:29:15
您好,我很抱歉,我还是有点新到Java,你能向我解释你是什么意思? – hellomello 2012-02-26 18:38:03
你可以给我你的网址吗? – 2012-02-26 18:39:50