Java JSONArray.length方法代码示例

import com.google.appengine.labs.repackaged.org.json.JSONArray; //导入方法依赖的package包/类
private static HashMap<String, String> parsePnoSettings(String settingsString) {
	if (!RiseUtils.strIsNullOrEmpty(settingsString)) {
		try {
			JSONArray settingsArray = new JSONArray(settingsString);

			HashMap<String, String> settings = new HashMap<String, String>();

			for (int i = 0; i < settingsArray.length(); i++) {
				JSONObject setting = settingsArray.getJSONObject(i);
				String name = setting.getString("name");
				String value = setting.optString("value", null);
				
				settings.put(name, value);
			}
			
			return settings;
		} catch (JSONException e) {
			e.printStackTrace();
		}
	}
	
	return null;
}
 

import com.google.appengine.labs.repackaged.org.json.JSONArray; //导入方法依赖的package包/类
/**
 * Creates a new instance of {@link SendRequest} based on the values derived from the specified {@code json}.
 * 
 * @param json
 *            the {@code JSONObject} from which the details are to be derived
 * @return The {@link SendRequest} derived from {@code json}.
 * @throws IllegalArgumentException
 *             If any of the required derived values are invalid.
 * @throws JSONException
 *             If {@code json} is malformed.
 * @throws NullPointerException
 *             If {@code json} is {@code null}.
 */
public static SendRequest fromJSON(JSONObject json) throws JSONException {
    SendRequest request = new SendRequest();
    request.setApiKey(json.getString("apiKey"));
    request.setHtml(json.optString("html", null));
    request.setSender(Contact.fromJSON(json.getJSONObject("sender")));
    request.setSubject(json.getString("subject"));
    request.setText(json.optString("text", null));

    JSONArray recipients = json.getJSONArray("recipients");
    for (int i = 0; i < recipients.length(); i++) {
        request.addRecipient(Contact.fromJSON(recipients.getJSONObject(i)));
    }

    return request;
}
 

import com.google.appengine.labs.repackaged.org.json.JSONArray; //导入方法依赖的package包/类
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	// get Access to Mirror Api
	Mirror mirror = getMirror(req);
	
	// get TimeLine
	Timeline timeline = mirror.timeline();
		
	try {
	    JSONObject json = new JSONObject(retrieveIPool());
	    JSONArray arr = json.getJSONArray("documents");
	    JSONArray media = new JSONArray();
	    
	    String title = null;
	    String content = null;
	    String URL = null;
	    
	    for (int i = 0; i < arr.length(); i++) {
	        title = arr.getJSONObject(i).getString("title");
	        // maybe for future use but for tts needs to be stripped from html tags
	        //content = arr.getJSONObject(i).getString("content");
	        media = arr.getJSONObject(i).getJSONArray("contentReferences");   
	    }
	    		    
	    if (media.length()!=0){
		    for (int i = 0; i < media.length(); i++) {
		    	URL = media.getJSONObject(i).getString("externalUrl");   
		    }
	    }
    
	    String html = "<article class=\"photo\">\n  <img src=\""+URL+"\" width=\"100%\" height=\"100%\">\n  <div class=\"overlay-gradient-tall-dark\"/>\n  <section>\n    <p class=\"text-auto-size\">"+title+"</p>\n  </section>\n</article>";
	    
	 // create a timeline item
		TimelineItem timelineItem = new TimelineItem()
			//.setSpeakableText(content)
			.setSpeakableText(title)
			.setHtml(html)
			.setDisplayTime(new DateTime(new Date()))
			.setNotification(new NotificationConfig().setLevel("Default"));
		
		// add menu items with built-in actions
		List<MenuItem> menuItemList = new ArrayList<MenuItem>();
		menuItemList.add(new MenuItem().setAction("DELETE"));
		menuItemList.add(new MenuItem().setAction("READ_ALOUD"));
		menuItemList.add(new MenuItem().setAction("TOGGLE_PINNED"));
		timelineItem.setMenuItems(menuItemList);
		
		// insert the crad into the timeline
		timeline.insert(timelineItem).execute();
		
		//print out results on the web browser
		resp.setContentType("text/html; charset=utf-8");
		//resp.setCharacterEncoding("UTF-8");
		resp.getWriter().println(
				"<html><head><meta http-equiv=\"refresh\" content=\"3;url=/index.html\"></head> "
						+ "<body>"+html+"</body></html>");
	} catch (JSONException e) {
	    
	    StringWriter errors = new StringWriter();
	    e.printStackTrace(new PrintWriter(errors));
	    String error =  errors.toString();
	    
	    //resp.setContentType("text/html; charset=utf-8");
	    resp.setCharacterEncoding("UTF-8");
		resp.getWriter().println(
				"<html><head><meta http-equiv=\"refresh\" content=\"3;url=/index.html\"></head> "
						+ "<body>JSON Exception " +error+" </body></html>");
	}
}