Sax is an event-based-driven API. Using SAX to parse XML documents involves two parts: parsers and event handlers. The parser is responsible for reading the XML document and sending events to the event handler, such as when the element starts with the element end event, and the event handler is responsible for handling the passed
Saxreader needs to be importedDom4j-full.jarPackage.
Dom4j is a Java xml api, similar to JDOM, used to read and write XML files. Dom4j is a very good Java xml api with excellent performance, powerful functionality, and extreme ease of use. It is also an open source software
JSON (JavaScript Object notation) is a lightweight data interchange format that is easy to read and write, and is also easy to machine parse and generate, and is widely used today as well as XML. Some people say that when JS meets JSON, Little JJ is born; I say that when JSON encounters XML, there are two more brothers in the world. The recent Easyui video is als
{ //Create XML Document object, save path to e:\\test.xml file File=new file ("D:\\test.xml"); Declaring Jaxbcontext Context objects Jaxbcontext context=jaxbcontext.newinstance (article.class); Creates a Java object that is converted to XML through a context object Marshaller; Marshaller M=context.createmarshaller ();
Sax is an event-driven API. Parsing XML documents using sax involves two parts: the parser and the event processor. The parser is responsible for reading XML documents and sending events to the event processor. For example, the element starts to end with the element. The event processor is responsible for responding to the event and processing the transmitted XML
Because the company's internal interface returns the string support 2 kinds of forms: PHP array, XML; results php array python can not be used directly, and XML string format is not standard, so also can not use the standard module parsing. "Non-standard place is the name of some node will be the beginning of the numbe
Strings. xml
Place strings. xml in the android project directory assets.
MainActivity. java
package com.example.sax2;import java.io.IOException;import java.io.InputStream;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.Attributes;import org.xml.sax.SAXExceptio
" when using mobile phone applications ". If you define these words in string. in xml, this text is referenced by the Resources class in each use, and only occupies 14B. Therefore, it is very effective to reduce the application volume. of course, we may not use so much text during development. However, as mobile application developers, we must develop good programming habits.
There are several differences
To parse XML files in C language, you must first install the libxml2 Development Kit and use the following command to install
Sudo apt-Get install libxml +++ 1.0-Dev
Sudo apt-Get install libxml +++ 1.0-Doc
After installation, the header file
Int xmlkeepblanksdefault (INT Val) // set whether to ignore blank nodes, such as spaces, which must be called before analysis. The default value is 0. It is best to
How to use the dom4j of the JSP tutorial to read parse XML files
Use dom4j to read XML files.dom4j
Package test.xml;
Import Java.io.File;Import Java.util.Iterator;Import org.dom4j.Document;Import org.dom4j.Element;Import Org.dom4j.io.SAXReader;
public class Testxmlbydom4j {public static void Main (string[] args
Note: There are several ways to determine if you are an IE browser or a non-ie browser, but here are just a few ways to use it:1, parse the XML string, the way to get the XML object:function Createxml (str) {if (document.all) {//ie browservar xmldoc = new ActiveXObject ("Microsoft.XMLDOM");Xmldoc.async = false;Xmldoc.l
DefaultHandler class :void Startdocument (): called when the document starts readingvoid Enddocument () : Called when reading to the end of the documentvoid Startelement (String uri, String localname, String qName, Attributes Attributes) : Called when the start tag is readvoid EndElement (String uri,
SendRequest () {var url = "/mywebapp/jsontest1";var mailajax = new Ajax.request (Url{Method: ' Get ',Oncomplete:jsonresponse});}function Jsonresponse (originalrequest) {alert (Originalrequest.responsetext);var myobj = OriginalRequest.responseText.parseJSON ();alert (myobj.name);}Prototype-1.5.1.js provides a method of JSON, String.evaljson (), you can modify the above method without using Json.jsJS Codefunction Jsonresponse (originalrequest) {alert (Originalrequest.responsetext);var myobj = Ori
Parse and construct a json string using JSONObject and JSONArray.
The JSON-lib package (the two most critical classes are JSONObject and JSONArray) completes the construction of json and the use of some basic methods.
Differences:
① The string constructed by JSONObject is in key: value format. Multiple key-value pairs are connected by commas;
② The
XML is a widely used technology for data transmission and storage. Java provides a variety of APIs to parse XML, such as DOM, SAX, StAX, and JAXB. There are also some other APIs for parsing XML, such as JDOM. The purpose of this tutorial is to explore using different types o
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