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Displaying keyword search results 1 - 10
Created by Fang on March 30, 2012 15:04:04
Last update: March 30, 2012 15:04:04
Spring MVC 3.1 can send either JSON or HTML response on the same URL, depending on the type of response requested. With this mechanism, a page can be sent when directly requested from a link, but a JSON response can be sent in response to an AJAX request. This is the controller code:
package com.example; import java.util.Map; ... In the above example, JSON response will be sent when the HTTP request contains header "Accept: application/json". HTML response will be sent then the header is "Accept: */*", or "Accept: text/html", or anything else. You can add a limitation that the HTML response does not produce "application/json". But then the question is which response will be sent when the HTTP header is "Accept: */*"? Both methods will...
Created by Fang on February 27, 2012 12:19:19
Last update: February 27, 2012 12:19:19
Mapping Java objects to Jackson JSON is pretty simple. But if you name a JSON field wrong, you'll get the "Unrecognized field ... (Class ...), not marked as ignorable" error. The rule for mapping a Java bean attribute name to a JSON field name is: lower all leading capital letters until the first lower case letter .
For example, this Java class:
package com.example;
public class Person {
...
maps to this JSON string:
{
"firstName": "Jane",
"lastName": "...
Test code:
package com.example;
import java.net.URL;
...
Created by James on June 22, 2010 18:56:40
Last update: February 13, 2012 10:25:47
Version 1.6.4:
<!-- jQuery -->
<script type="text/javascript" ...
Version 1.7.1:
<script type="text/javascript" src="https://ajax.g...
Google URL: http://code.google.com/apis/ajaxlibs/documentation/#jquery
Created by James on February 02, 2012 16:09:05
Last update: February 02, 2012 16:09:17
flowplayer is another way to embed Flash in a web page. The code looks like this:
<object width="6400" height="380" data="swf/flowpl...
You need to download two swf files:
http://releases.flowplayer.org/swf/flowplayer-3.2.1.swf
http://releases.flowplayer.org/swf/flowplayer.controls-3.2.0.swf
Created by James on February 02, 2012 09:20:22
Last update: February 02, 2012 09:20:22
This example came from the jQuery validation documentation. The required rule can be used to validate a required selection box when you set the value of the first option to empty.
<!DOCTYPE HTML>
<html>
<head>
<scrip...
The error message is the title since no error message is specified. A more fully defined validation check would look like this:
$('#my-form').validate({
errorElement: "p",
...
Created by Fang on November 21, 2011 15:57:49
Last update: November 22, 2011 09:51:26
The improved custom taglib works with existing facelet ui taglibs. For example:
<ui:param name="theName" value="John"/> <my:hel... produces the expected output. However, a problem exists with the ui:repeat tag: <h3>With ui:repeat</h3> <ui:repeat var="theName... When tested with a URL like: http://localhost:8080/facelet-demo/?name=Zack&name... the raw EL prints out the correct names, but my custom tag substitutes empty string for theName2 ! In theory, the response is rendered in the Render Response phase, way after the Apply Request Values phase, actual values should be available to EL. The answer to this anomaly turned out to be very deep ! Yes, right there in the code! I would consider this a bug in facelets implementation, but the JSF spec did not tell what the expected behavior should be. In my custom...
Created by Fang on November 10, 2011 09:26:12
Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines!
<?xml version="1.0" encoding="UTF-8"?>
<xsd:sch...
Created by magnum on September 27, 2011 21:51:05
Last update: September 28, 2011 18:02:49
Client socket usually does not call bind . But I've seen code that does and it was puzzling to me what bind does to a client socket. Therefore, this little test program. It retrieves a web url and displays info about the socket. You can optionally give a bind host name/ip and port and see what it does.
Here are my test results:
$ ./client www.google.com
Local addr: 172.16.0....
This is the code:
#include <stdio.h>
#include <stdlib.h>
#incl...
Created by freyo on June 30, 2011 12:36:26
Last update: July 01, 2011 09:43:54
Code
public void install(View view) {
String url = ...
Screenshots:
Logcat:
D/InstallApp( 338): install: file:///sdcard/GetAp...
Using http://... as the URI for the APK does not work. Android fails to find a handler for the intent (logcat):
No Activity found to handle Intent { act=android.i...
Therefore, download the APK to sdcard then fire the Intent.
Created by freyo on May 16, 2011 13:05:57
Last update: May 16, 2011 13:07:18
The root URL is: http://android.git.kernel.org/ Built-in applications are projects named platform/packages/apps/<app_name>.git , for example, phone app is: platform/packages/apps/Phone.git , contacts app is: platform/packages/apps/Contacts.git . Android framework classes such as android.app.Activity , android.content.ContentProvider etc., are under the platform/frameworks/base.git project. By default, browsing displays the HEAD branch, to see a different branch, add hb parameter. Compare: http://android.git.kernel.org/?p=platform/build.git;a=tree;f=tools to: http://android.git.kernel.org/?p=platform/build.git;a=tree;f=tools;hb=refs/tags/android-2.2.1_r1 , you'll notice that dexpreopt is missing in the former. Use the tags action to display a list of tags for the current project. For example: http://android.git.kernel.org/?p=platform/build.git;a=tags . An incomplete parameter list (parameters are separated by a semicolon): p : project, for example, platform/build.git . a : action, for example, tree , summary , log etc. f : file name. hb : branch or tag name, for example:...
