获取另一个的JSONObject内一个JSONObject参数 [英] obtain parameters of a JsonObject within another JsonObject
本文介绍了获取另一个的JSONObject内一个JSONObject参数的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
尝试获取图像的URL，这是一个JSONObject内，双方还内的其他的JSONObject
这是抛出我的错误
3月5日至25日：09：51.120 9573-9836 / com.learn2crack.tab W / System.err的：org.json.JSONException：为thumbnail_images没有价值
3月5日至25日：09：51.134 9573-9836 / com.learn2crack.tab W / System.err的：在org.json.JSONObject.get（JSONObject.java:355）
3月5日至25日：09：51.134 9573-9836 / com.learn2crack.tab W / System.err的：在org.json.JSONObject.getJSONObject（JSONObject.java:574）
3月5日至25日：09：51.134 9573-9836 / com.learn2crack.tab W / System.err的：在com.learn2crack.tab.ListaCat $ GetLocales.doInBackground（ListaCat.java:141）
3月5日至25日：09：51.134 9573-9836 / com.learn2crack.tab W / System.err的：在com.learn2crack.tab.ListaCat $ GetLocales.doInBackground（ListaCat.java:92）
3月5日至25日：09：51.134 9573-9836 / com.learn2crack.tab W / System.err的：在android.os.AsyncTask $ 2.call（AsyncTask.java:288）
3月5日至25日：09：51.134 9573-9836 / com.learn2crack.tab W / System.err的：在java.util.concurrent.FutureTask.run（FutureTask.java:237）
3月5日至25日：09：51.135 9573-9836 / com.learn2crack.tab W / System.err的：在android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:231）
3月5日至25日：09：51.135 9573-9836 / com.learn2crack.tab W / System.err的：在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1112）
3月5日至25日：09：51.135 9573-9836 / com.learn2crack.tab W / System.err的：在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:587）
3月5日至25日：09：51.135 9573-9836 / com.learn2crack.tab W / System.err的：在java.lang.Thread.run（Thread.java:841）
JSON
{\"status\":\"ok\",\"count\":2,\"count_total\":2,\"pages\":1,\"posts\":[{\"id\":4121,\"type\":\"post\",\"slug\":\"comida-2\",\"url\":\"http:\\/\\/web\\/comida-2\\/\",\"status\":\"publish\",\"title\":\"comida 2，title_plain：饮食2，内容：，节选：，日期：2014年4月18日二十时12分33秒，修改：2014- 05-17 19:10:09\",\"categories\":[{\"id\":13,\"slug\":\"comida\",\"title\":\"comida\",\"description\":\"\",\"parent\":0,\"post_count\":2}],\"tags\":[],\"author\":{\"id\":1,\"slug\":\"newmesis\",\"name\":\"newmesis\",\"first_name\":\"Luis\",\"last_name\":\"Ruiz\",\"nickname\":\"newmesis\",\"url\":\"\",\"description\":\"Ingeniero恩告知\\ u00e1tica IP圣托马斯Chillan\"},\"comments\":[],\"attachments\":[],\"comment_count\":0,\"comment_status\":\"open\",\"custom_fields\":{\"correo\":[\"\"],\"telefono\":[\"0\"],\"sample_custom_field\":[\"\"],\"sample_textarea\":[\"\"],\"sample_image_field\":[\"\"],\"layout\":[\"\"],\"sidebar\":[\"\"],\"header_title_bar\":[\"\"],\"header_transparency\":[\"\"],\"footer\":[\"\"],\"restrict_roles\":[\"\"]}},{\"id\":4119,\"type\":\"post\",\"slug\":\"comida-1\",\"url\":\"http:\\/\\/web\\/comida-1\\/\",\"status\":\"publish\",\"title\":\"comida 1，title_plain：饮食1，内容：，节选：，日期：2014年4月18日20时12分08秒，修改：2014- 05-25 03:02:26\",\"categories\":[{\"id\":13,\"slug\":\"comida\",\"title\":\"comida\",\"description\":\"\",\"parent\":0,\"post_count\":2}],\"tags\":[],\"author\":{\"id\":1,\"slug\":\"newmesis\",\"name\":\"newmesis\",\"first_name\":\"Luis\",\"last_name\":\"Ruiz\",\"nickname\":\"newmesis\",\"url\":\"\",\"description\":\"Ingeniero恩告知\\ u00e1tica IP圣托马斯Chillan\"},\"comments\":[],\"attachments\":[],\"comment_count\":0,\"comment_status\":\"open\",\"thumbnail\":null,\"custom_fields\":{\"correo\":[\"\"],\"telefono\":[\"81801756\"],\"sample_custom_field\":[\"\"],\"sample_textarea\":[\"\"],\"sample_image_field\":[\"\"],\"layout\":[\"\"],\"sidebar\":[\"\"],\"header_title_bar\":[\"\"],\"header_transparency\":[\"\"],\"footer\":[\"\"],\"mapa\":[\"a:3:{s:7:\\\"address\\\";s:49:\\\"Volc\án帕里纳科塔1202，冰寒\\ u00e1n，Biob \\ u00edo， Chile\\\";s:3:\\\"lat\\\";s:11:\\\"-36.6204309\\\";s:3:\\\"lng\\\";s:11:\\\"-72.0796431\\\";}\"],\"horario\":[\"\"]},\"thumbnail_size\":\"post-thumbnail\",\"thumbnail_images\":{\"full\":{\"url\":\"http:\\/\\/web\\/wp-content\\/uploads\\/sites\\/6\\/2014\\/05\\/mcdonalds21.jpg\",\"width\":560,\"height\":387},\"thumbnail\":{\"url\":\"http:\\/\\/web\\/wp-content\\/uploads\\/sites\\/6\\/2014\\/05\\/mcdonalds21-80x80.jpg\",\"width\":80,\"height\":80},\"medium\":{\"url\":\"http:\\/\\/web\\/wp-content\\/uploads\\/sites\\/6\\/2014\\/05\\/mcdonalds21-300x300.jpg\",\"width\":300,\"height\":300},\"twentyfourteen-full-width\":{\"url\":\"http:\\/\\/web\\/wp-content\\/uploads\\/sites\\/6\\/2014\\/05\\/mcdonalds21.jpg\",\"width\":560,\"height\":387}}}],\"query\":{\"ignore_sticky_posts\":true,\"count\":\"10\",\"status\":\"published\"}}
我试图获取参数完全
code
的for（int i = 0; I＆LT; Locales.length（）;我++）{
JSONObject的C = Locales.getJSONObject（I） 字符串ID = c.getString（TAG_ID）;
字符串title = c.getString（TAG_title）; JSONObject的手机= c.getJSONObject（TAG_CUSTOM）;
JSONArray araycus = phone.getJSONArray（TAG_TELEFONO）; 字符串移动= araycus.getString（0）;
JSONObject的图像= c.getJSONObject（TAG_THUM）;
JSONObject的fullurl = images.getJSONObject（TAG_THUM_FULL）; 字符串缩略图= fullurl.getString（TAG_THUM_FULL_URL）; HashMap的＆LT;字符串，字符串＆GT; LocalesMAP =新的HashMap＆LT;字符串，字符串＆GT;（）; LocalesMAP.put（TAG_ID，身份证）;
LocalesMAP.put（TAG_title，职称）;
LocalesMAP.put（TAG_TELEFONO，手机）;
LocalesMAP.put（TAG_THUM_FULL，缩略图）;
LocalesList.add（LocalesMAP）;
解决方案
试试这个..
而不是这个..
的JSONObject图像= c.getJSONObject（TAG_THUM）;
JSONObject的fullurl = images.getJSONObject（TAG_THUM_FULL）;
字符串缩略图= fullurl.getString（TAG_THUM_FULL_URL）;
添加
的JSONObject图像= NULL;
串缩略图=;如果（c.has（TAG_THUM））{
照片= c.getJSONObject（TAG_THUM）;
JSONObject的fullurl = images.getJSONObject（TAG_THUM_FULL）;
缩略图= fullurl.getString（TAG_THUM_FULL_URL）;
}
有没有 thumbnail_images 第一，只有在第二个项目，以便为thumbnail_images无值使用的为检查是否可用
try to get the url of an image, this is inside a JsonObject and that both also within other JsonObject
this is the error that throws me
05-25 03:09:51.120 9573-9836/com.learn2crack.tab W/System.err﹕ org.json.JSONException: No value for thumbnail_images
05-25 03:09:51.134 9573-9836/com.learn2crack.tab W/System.err﹕ at org.json.JSONObject.get(JSONObject.java:355)
05-25 03:09:51.134 9573-9836/com.learn2crack.tab W/System.err﹕ at org.json.JSONObject.getJSONObject(JSONObject.java:574)
05-25 03:09:51.134 9573-9836/com.learn2crack.tab W/System.err﹕ at com.learn2crack.tab.ListaCat$GetLocales.doInBackground(ListaCat.java:141)
05-25 03:09:51.134 9573-9836/com.learn2crack.tab W/System.err﹕ at com.learn2crack.tab.ListaCat$GetLocales.doInBackground(ListaCat.java:92)
05-25 03:09:51.134 9573-9836/com.learn2crack.tab W/System.err﹕ at android.os.AsyncTask$2.call(AsyncTask.java:288)
05-25 03:09:51.134 9573-9836/com.learn2crack.tab W/System.err﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:237)
05-25 03:09:51.135 9573-9836/com.learn2crack.tab W/System.err﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
05-25 03:09:51.135 9573-9836/com.learn2crack.tab W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
05-25 03:09:51.135 9573-9836/com.learn2crack.tab W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
05-25 03:09:51.135 9573-9836/com.learn2crack.tab W/System.err﹕ at java.lang.Thread.run(Thread.java:841)
json
{"status":"ok","count":2,"count_total":2,"pages":1,"posts":[{"id":4121,"type":"post","slug":"comida-2","url":"http:\/\/web\/comida-2\/","status":"publish","title":"comida 2","title_plain":"comida 2","content":"","excerpt":"","date":"2014-04-18 20:12:33","modified":"2014-05-17 19:10:09","categories":[{"id":13,"slug":"comida","title":"comida","description":"","parent":0,"post_count":2}],"tags":[],"author":{"id":1,"slug":"newmesis","name":"newmesis","first_name":"Luis","last_name":"Ruiz","nickname":"newmesis","url":"","description":"Ingeniero en inform\u00e1tica IP Santo Tomas Chillan"},"comments":[],"attachments":[],"comment_count":0,"comment_status":"open","custom_fields":{"correo":[""],"telefono":["0"],"sample_custom_field":[""],"sample_textarea":[""],"sample_image_field":[""],"layout":[""],"sidebar":[""],"header_title_bar":[""],"header_transparency":[""],"footer":[""],"restrict_roles":[""]}},{"id":4119,"type":"post","slug":"comida-1","url":"http:\/\/web\/comida-1\/","status":"publish","title":"comida 1","title_plain":"comida 1","content":"","excerpt":"","date":"2014-04-18 20:12:08","modified":"2014-05-25 03:02:26","categories":[{"id":13,"slug":"comida","title":"comida","description":"","parent":0,"post_count":2}],"tags":[],"author":{"id":1,"slug":"newmesis","name":"newmesis","first_name":"Luis","last_name":"Ruiz","nickname":"newmesis","url":"","description":"Ingeniero en inform\u00e1tica IP Santo Tomas Chillan"},"comments":[],"attachments":[],"comment_count":0,"comment_status":"open","thumbnail":null,"custom_fields":{"correo":[""],"telefono":["81801756"],"sample_custom_field":[""],"sample_textarea":[""],"sample_image_field":[""],"layout":[""],"sidebar":[""],"header_title_bar":[""],"header_transparency":[""],"footer":[""],"mapa":["a:3:{s:7:\"address\";s:49:\"Volc\u00e1n Parinacota 1202, Chill\u00e1n, Biob\u00edo, Chile\";s:3:\"lat\";s:11:\"-36.6204309\";s:3:\"lng\";s:11:\"-72.0796431\";}"],"horario":[""]},"thumbnail_size":"post-thumbnail","thumbnail_images":{"full":{"url":"http:\/\/web\/wp-content\/uploads\/sites\/6\/2014\/05\/mcdonalds21.jpg","width":560,"height":387},"thumbnail":{"url":"http:\/\/web\/wp-content\/uploads\/sites\/6\/2014\/05\/mcdonalds21-80x80.jpg","width":80,"height":80},"medium":{"url":"http:\/\/web\/wp-content\/uploads\/sites\/6\/2014\/05\/mcdonalds21-300x300.jpg","width":300,"height":300},"twentyfourteen-full-width":{"url":"http:\/\/web\/wp-content\/uploads\/sites\/6\/2014\/05\/mcdonalds21.jpg","width":560,"height":387}}}],"query":{"ignore_sticky_posts":true,"count":"10","status":"published"}}
I'm trying to get the parameter full
code
for (int i = 0; i < Locales.length(); i++) {
JSONObject c = Locales.getJSONObject(i);
String id = c.getString(TAG_ID);
String title = c.getString(TAG_title);
JSONObject phone = c.getJSONObject(TAG_CUSTOM);
JSONArray araycus = phone.getJSONArray(TAG_TELEFONO);
String mobile = araycus.getString(0);
JSONObject images = c.getJSONObject(TAG_THUM);
JSONObject fullurl = images.getJSONObject(TAG_THUM_FULL);
String thumbnail = fullurl.getString(TAG_THUM_FULL_URL);
HashMap<String, String> LocalesMAP = new HashMap<String, String>();
LocalesMAP.put(TAG_ID, id);
LocalesMAP.put(TAG_title, title);
LocalesMAP.put(TAG_TELEFONO, mobile);
LocalesMAP.put(TAG_THUM_FULL,thumbnail);
LocalesList.add(LocalesMAP);
解决方案
Try this..
Instead of this..
JSONObject images = c.getJSONObject(TAG_THUM);
JSONObject fullurl = images.getJSONObject(TAG_THUM_FULL);
String thumbnail = fullurl.getString(TAG_THUM_FULL_URL);
add
JSONObject images = null;
String thumbnail = "";
if(c.has(TAG_THUM)){
images = c.getJSONObject(TAG_THUM);
JSONObject fullurl = images.getJSONObject(TAG_THUM_FULL);
thumbnail = fullurl.getString(TAG_THUM_FULL_URL);
}
There is no thumbnail_images in first that only in second item so that No value for thumbnail_images use has for checking is available or not
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