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Android org.json.JSONException:注释没有值_Android_Json_Wordpress - Fatal编程技术网

Android org.json.JSONException:注释没有值

Android org.json.JSONException:注释没有值,android,json,wordpress,Android,Json,Wordpress,我有一个从wordpress博客上获取的Json数据,当我试图传递url时,我在我的日志中得到了一个错误,说org.Json.JSONException:No value for comments. 我想做的是从wordpress博客中检索信息 我已经粘贴了我的完整代码以供进一步参考 03-13 11:43:59.698: W/System.err(18926): org.json.JSONException: No value for comments 03-13 11:43:59.698:

我有一个从wordpress博客上获取的Json数据,当我试图传递url时,我在我的日志中得到了一个错误,说org.Json.JSONException:No value for comments.

我想做的是从wordpress博客中检索信息

我已经粘贴了我的完整代码以供进一步参考

03-13 11:43:59.698: W/System.err(18926): org.json.JSONException: No value for comments
03-13 11:43:59.698: W/System.err(18926):    at org.json.JSONObject.get(JSONObject.java:354)
03-13 11:43:59.698: W/System.err(18926):    at org.json.JSONObject.getJSONArray(JSONObject.java:544)
03-13 11:43:59.698: W/System.err(18926):    at com.cepfmobileapp.org.CommentActivityWp$GetQuery.doInBackground(CommentActivityWp.java:271)
03-13 11:43:59.698: W/System.err(18926):    at com.cepfmobileapp.org.CommentActivityWp$GetQuery.doInBackground(CommentActivityWp.java:1)
03-13 11:43:59.698: W/System.err(18926):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
03-13 11:43:59.698: W/System.err(18926):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
03-13 11:43:59.698: W/System.err(18926):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
03-13 11:43:59.708: W/System.err(18926):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
03-13 11:43:59.708: W/System.err(18926):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
03-13 11:43:59.708: W/System.err(18926):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
03-13 11:43:59.708: W/System.err(18926):    at java.lang.Thread.run(Thread.java:856)
Java代码

    private static final String TAG_COMMENTS = "comments";
private static final String TAG_ID = "id";
private static final String TAG_NAME = "name";
private static final String TAG_CONTENT = "content";


    Intent i = getIntent();
    // Receiving the Data
    ida = i.getStringExtra("id");
    url = "" + ida;


    @Override
    protected Void doInBackground(Void... arg0) {
        // Creating service handler class instance
        ServiceHandler sh = new ServiceHandler();

        // Making a request to url and getting response
        String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);

        Log.d("Response: ", "> " + jsonStr);

        if (jsonStr != null) {
            try {
                JSONObject jsonObj = new JSONObject(jsonStr);

                // Getting JSON Array node
                comments = jsonObj.getJSONArray(TAG_COMMENTS);

                // looping through All Contacts
                for (int i = 0; i < comments.length(); i++) {
                    JSONObject c = comments.getJSONObject(i);


                    // Phone node is JSON Object
                     //JSONObject comments = c.getJSONObject(TAG_COMMENTS );
                     String id = c.getString(TAG_ID);
                     String name = c.getString(TAG_NAME);
                     String content = c.getString(TAG_CONTENT);

                    // tmp hashmap for single contact
                    HashMap<String, String> contact = new HashMap<String, String>();

                    // adding each child node to HashMap key => value
                    contact.put(TAG_ID, id);
                    contact.put(TAG_NAME, name);
                    contact.put(TAG_CONTENT, content);


                    // adding contact to contact list
                    queryList.add(contact);
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
        } else {
            Log.e("ServiceHandler", "Couldn't get any data from the url");
        }

        return null;
    }
private static final String TAG_COMMENTS=“COMMENTS”;
私有静态最终字符串标记\u ID=“ID”;
私有静态最终字符串标记_NAME=“NAME”;
私有静态最终字符串标记_CONTENT=“CONTENT”;
Intent i=getIntent();
//接收数据
ida=i.getStringExtra(“id”);
url=”“+ida;
@凌驾
受保护的Void doInBackground(Void…arg0){
//创建服务处理程序类实例
ServiceHandler sh=新的ServiceHandler();
//向url发出请求并获得响应
字符串jsonStr=sh.makeServiceCall(url,ServiceHandler.GET);
Log.d(“响应:”、“>”+jsonStr);
if(jsonStr!=null){
试一试{
JSONObject jsonObj=新的JSONObject(jsonStr);
//获取JSON数组节点
comments=jsonObj.getJSONArray(TAG_comments);
//通过所有触点循环
for(int i=0;ivalue
联系人。放置(标签号,ID);
联系人:put(标签名称、姓名);
联系人。放置(标签内容,内容);
//将联系人添加到联系人列表
queryList.add(联系人);
}
}捕获(JSONException e){
e、 printStackTrace();
}
}否则{
Log.e(“ServiceHandler”,“无法从url获取任何数据”);
}
返回null;
}
tythis

您的JSONArray中没有
注释
,在您的回复中,您必须检查
jsonObj.has(TAG\u CONTENT)
标记名是否存在

JSONObject  jsonpost= jsonObj.getJSONObject("post");
if(jsonpost.has(TAG_ID)){

    comments = jsonpost.getJSONArray(TAG_COMMENTS);

    for (int i = 0; i < comments.length(); i++) {   

    String id = "";
    String name = "";
    String content = "";

    if(c.has(TAG_ID))
       id = c.getString(TAG_ID);

    if(c.has(TAG_NAME))
      name = c.getString(TAG_NAME);

    if(c.has(TAG_CONTENT))
       content = c.getString(TAG_CONTENT);
    }
}
JSONObject jsonpost=jsonObj.getJSONObject(“post”);
if(jsonpost.has(TAG_ID)){
comments=jsonpost.getJSONArray(TAG_comments);
对于(inti=0;i
tythis

您的JSONArray中没有
注释
,在您的回复中,您必须检查
jsonObj.has(TAG\u CONTENT)
标记名是否存在

JSONObject  jsonpost= jsonObj.getJSONObject("post");
if(jsonpost.has(TAG_ID)){

    comments = jsonpost.getJSONArray(TAG_COMMENTS);

    for (int i = 0; i < comments.length(); i++) {   

    String id = "";
    String name = "";
    String content = "";

    if(c.has(TAG_ID))
       id = c.getString(TAG_ID);

    if(c.has(TAG_NAME))
      name = c.getString(TAG_NAME);

    if(c.has(TAG_CONTENT))
       content = c.getString(TAG_CONTENT);
    }
}
JSONObject jsonpost=jsonObj.getJSONObject(“post”);
if(jsonpost.has(TAG_ID)){
comments=jsonpost.getJSONArray(TAG_comments);
对于(inti=0;i
按如下方式进行尝试:

     try {
            JSONObject jsonObj = new JSONObject(jsonStr);

            // Getting JSON Array node
            comments = jsonObj.getJSONArray("posts");

            // looping through All Contacts
            for (int i = 0; i < comments.length(); i++) {
                JSONObject c = comments.getJSONObject(i);

                //get the comments arraylist
                 JSONArray commentsdata = c.getJSONArray(TAG_COMMENTS);
                      for (int j = 0; j < commentsdata.length(); j++) 
                        {
                            JSONObject comntObj = commentsdata.getJSONObject(j);
                          String name = comntObj.getString("name");
                          String sUrl = comntObj.getString("url");
                           String scontent = comntObj.getString("content");
                        ....................

                       }
                  String id = c.getString(TAG_ID);
                 String content = c.getString(TAG_CONTENT);
                // tmp hashmap for single contact
                HashMap<String, String> contact = new HashMap<String, String>();

                // adding each child node to HashMap key => value
                contact.put(TAG_ID, id);
                contact.put(TAG_NAME, name);
                contact.put(TAG_CONTENT, content);


                // adding contact to contact list
                queryList.add(contact);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
试试看{
JSONObject jsonObj=新的JSONObject(jsonStr);
//获取JSON数组节点
comments=jsonObj.getJSONArray(“posts”);
//通过所有触点循环
for(int i=0;ivalue
联系人。放置(标签号,ID);
联系人:put(标签名称、姓名);
联系人。放置(标签内容,内容);
//将联系人添加到联系人列表
queryList.add(联系人);
}
}捕获(JSONException e){
e、 printStackTrace();
}
按如下方式进行尝试:

     try {
            JSONObject jsonObj = new JSONObject(jsonStr);

            // Getting JSON Array node
            comments = jsonObj.getJSONArray("posts");

            // looping through All Contacts
            for (int i = 0; i < comments.length(); i++) {
                JSONObject c = comments.getJSONObject(i);

                //get the comments arraylist
                 JSONArray commentsdata = c.getJSONArray(TAG_COMMENTS);
                      for (int j = 0; j < commentsdata.length(); j++) 
                        {
                            JSONObject comntObj = commentsdata.getJSONObject(j);
                          String name = comntObj.getString("name");
                          String sUrl = comntObj.getString("url");
                           String scontent = comntObj.getString("content");
                        ....................

                       }
                  String id = c.getString(TAG_ID);
                 String content = c.getString(TAG_CONTENT);
                // tmp hashmap for single contact
                HashMap<String, String> contact = new HashMap<String, String>();

                // adding each child node to HashMap key => value
                contact.put(TAG_ID, id);
                contact.put(TAG_NAME, name);
                contact.put(TAG_CONTENT, content);


                // adding contact to contact list
                queryList.add(contact);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
试试看{
JSONObject jsonObj=新的JSONObject(jsonStr);
//获取JSON数组节点
comments=jsonObj.getJSONArray(“posts”);
//通过所有触点循环
for(int i=0;i