Xml/json communication between the Android client and the PHP server

1.android-Side Send XML request:

There are 2 main points:

	HttpPost HttpPost = new HttpPost (str);
	Httppost.setentity (new Stringentity (XML));

The first is to create a new HttpPost request, initialized with STR, and STR is the server-side interface address

The second article is to create the sending entity, which is initialized with the XML to be sent.

The complete code is as follows (by Buptpatriot):

public class Mobilerss extends activity {String xml= "<?xml version=\" 1.0\ "encoding=\"? gb2312\ Gt;<req name=\ "userlogin\" ><user_id>001</user_id><user_url>\ "http://voice.hupu.com/ Generated/voice/news_nba.xml\ "</user_url><trader_id></trader_id><customer_id></ customer_id><password>123</password><versioninfo>1.0</versioninfo></req></
	Mebs_mobile> ";
	String str= "http://mathandcs.com/MobileRSS/parser.php";
		@Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
		Setcontentview (R.LAYOUT.ACTIVITY_MOBILE_RSS);
		LOG.D ("Mobile_rss", "Layout Loaded");
		Button Sendbutton = (button) Findviewbyid (R.id.send_button);
					Sendbutton.setonclicklistener (New Onclicklistener () {@Override public void OnClick (view view) {new Thread () {
				           public void Run () {try {httppost httppost = new HttpPost (str); Httppost.setentity (new Stringentity (XML));           
				            HttpResponse HttpResponse = new Defaulthttpclient (). Execute (httppost);
				            LOG.D ("Mobile_rss", "StatusCode:" + httpresponse.getstatusline (). Getstatuscode () + "");
				            String result = entityutils.tostring (httpresponse.getentity ());
				        LOG.D ("Mobile_rss", "Result:" +result);
				        catch (Exception e) {e.printstacktrace ();
			}}.start ();
        
	}
		}); }
}

2.php XML request to handle Android:

First, get the XML from Android ():

At first I thought using PHP $_post[to get, but not successful, find the following workaround: (Reference: http://taoshi.blog.51cto.com/1724747/1165499)

$xmldata = file_get_contents ("Php://input"); 
$data = (array) simplexml_load_string ($xmldata); 
Print_r ($data);

Note:

1), php://input data is always the same as $http_raw_post_data, but php://input more effective than $http_raw_post_data, and do not need special settings php.ini

2), only when Content-type is application/x-www-data-urlencoded, php://input data is consistent with $_post data.

Then, get the XML content through the Http_get_contents method

Finally, with the help of PHP DOM operation, XML file parsing is realized:

Reference PHP website Manual:

1), http://cn2.php.net/manual/zh/class.domdocument.php

2), http://www.w3schools.com/dom/dom_node.asp

3), http://www.cnblogs.com/meteoric_cry/archive/2011/04/07/2007628.html

Node Object Properties

Property

	Description
BaseURI	Returns the absolute base URI of a node
ChildNodes	Returns a nodelist of nodes for a node
FirstChild	Returns the "a" node
LastChild	Returns the last child of a node
LocalName	Returns The local part of the name of node
NamespaceURI	Returns the namespace URI of a node
NextSibling	Returns the node immediately following a node
NodeName	Returns the name of a node, depending on its type
NodeType	Returns the type of a node
NodeValue	Sets or returns the value of a node, depending on its type
Ownerdocument	Returns the root element (document object) for a node
ParentNode	Returns The parent node of a node
Prefix	Sets or returns the namespace prefix of a node
PreviousSibling	Returns the node immediately before a node
Textcontent	Sets or returns the textual content of a node and its descendants

The complete code is as follows (by Wusuopubupt):

<?php $xmldata = file_get_contents ("Php://input"); 
$data = (array) simplexml_load_string ($xmldata);

Print_r ($data); $url = "Http://voice.hupu.com/generated/voice/news_nba.xml";

Hupu XML $xmlfile = file_get_contents ($url);
$dom = new DOMDocument ();
$dom->loadxml ($xmlfile);
$xpath = new Domxpath ($dom);
$query = "//i";
$entries = $xpath->query ($query);

$dom->savexml ();
$items = $dom->getelementsbytagname ("item");
$item = $items->item (0); 
Var_dump ($item->nodevalue);
$index = 0;
$len = $items->length;

$content = Array ();
	while ($index < $len) {$nodeItem = $items->item ($index);
	$titles = $nodeItem->getelementsbytagname ("title");
	$links = $nodeItem-> getelementsbytagname ("link");
	$descriptions = $nodeItem-> getElementsByTagName ("description");
	foreach ($titles as $title) {$content [$index] [' title '] = $title->nodevalue;
	foreach ($links as $link) {$content [$index] [' link '] = $link->nodevalue; foreach ($descriptions as $Description) {$content [$index] [' description '] = $description->nodevalue;
} $index + +;
Header ("Content-type:application/json");

echo Json_encode ($content);
/* $content = array ();
		for ($i = 0; $i < $len; $i + +) {foreach ($items->item ($i)->getelementsbytagname (' title ') as $title) {
		Var_dump ($title);
	$content [$i] [' title '] [] = $title->nodevalue;

}*///var_dump ($content);
	function Http_get ($url, $ref _url=null) {$ch = Curl_init ();
	curl_setopt ($ch, Curlopt_url, $url);
	curl_setopt ($ch, Curlopt_returntransfer, 1); curl_setopt ($ch, Curlopt_useragent, "mozilla/5.0" (Windows NT 6.1;
	WOW64) applewebkit/537.36 (khtml, like Gecko) chrome/27.0.1453.81 safari/537.36 ");
	if ($ref _url) {curl_setopt ($ch, Curlopt_referer, $ref _url);
	curl_setopt ($ch, Curlopt_connecttimeout, 3);
	curl_setopt ($ch, Curlopt_timeout, 3);
	$data = curl_exec ($ch);
	Curl_close ();
return $data;
 }?>