Stax Overview
From the very beginning, Java API for XML Processing (JAXP) provides two methods to process XML: the Document Object Model (DOM) method uses a standard Object Model to represent XML documents; the Simple API for XML (SAX) method uses the event handler provided by the application to process XML. JSR-173 proposes a new method for stream-oriented: streaming API for XML (Stax ). Its final version
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J2ee/xml developers typically use the Document Object Model (DOM) API or a simple API for XML (SAX) API to parse XML documents. However, these APIs have their drawbacks. One of the drawbacks of the DOM API is that it consumes a lot of memory, because before the XML document can be navigated, a complete memory structure of the XML document must be created. The downside of the Sax API is that it instances a push Analysis model API, in which parsing events are generated by the parser. In
1. Installing staf + Stax on theserver
1.1. [Optional] If JVM not installed, need to install JVM first.
1.2. download the latest stafrelease fromHttp://staf.sourceforge.net/getcurrent.php.
1.3. Download The Stax service from
Http://staf.sourceforge.net/getstax.php.
1.4. Install staf
1.5. Create a services folder in thestaf Install Folder, for example: C: \ staf \ Services.
1.6. Extract The
StAX (streaming API for XML) is a stream-oriented pull parsing XML that is fast, resource-intensive, and very suitable for XML files that handle large amounts of data.Detailed tutorials and instructions can be found in the following articles:Parsing XML using StAX, part 1th: Introduction to streaming API for XML (StAX)Http://www.ibm.com/developerworks/cn/xml/x-st
Staf full name SoftwareTestingAutomation framework.TestFramework, which is called a service as a variety of functions. staf isOpen SourceSoftware.
The following describes the installation and configuration of staf/Stax.
I,WindowsInstall
1. Download The staf and Stax installation packages from the staf official website.WindowsAndLinuxThe installation package of the platform.2. On Windows, double-click the st
WS-Security Chinese problem solvingAfter learning about the next generation of JAXP, I have a basic understanding of how axis2 processes soap messages. After tracking code debugging, the problem is found mainly in the axis2util class of the Rampart module of axis2. the two methods include getdocumentfromsoapenvelope (soapenvelope ENV, Boolean usedoom) and lift (soapenvelope ENV, Boolean usedoom ). When WS-Security and none are different, the input parameters usedoom are true and false, resulting
1. Preface
Most of this article is excerpted from IBM developerworks (mainly theoretical). For details about the following three articles, the excerpt mainly aims to make yourself understand more, just take notes... this is also a reference for future use! The excerpt is not comprehensive, and the original content must be enriched. For details, see the original document.
References:
Parsing XML with Stax, Part 1: streaming API for XML (
Java 6.0 has many aspects of the new features that XML supports. For example, Stax, Java Architecture for Xml-web Services (JAX-WS) 2.0, XML-bound APIs (JAXB) 2.0, XML digital signature APIs, and even sql:2003 ' XML ' data types. In this article we are going to introduce the Stax technology because it will be used more frequently in our development.
Stax is an
Let's say the first three ways:
Dom Way : The individual understands similar to. NET's XmlDocument, the parsing time is not high, occupies the memory, is not suitable for the big XML parsing;Sax Method : event-based parsing, when parsing to a part of XML, triggers a specific event that can be defined in a custom parsing class to do when an event is triggered; a personal feeling is a very different way, I don't know. NET system is there a similar way?Stax
The last time, I was briefed on the openqa.org community-available, open source Automated test framework (open source testing tools/community (selenium/openqa.org)). Recently, see Staf+stax released the latest version, including many service components, you can see that the Staf+stax framework is more and more complete, it is worth recommending to everyone.
September, 2008:staf 3.3.1,
Reference: http://www.ibm.com/developerworks/cn/xml/x-stax1.html? S_tact = 105agx52 s_cmp = techcsdn
Streaming API for XML (Stax) is the latest standard for processing XML in Java. As a stream-oriented method, both performance and availability are superior to other methods, such as Dom and sax.
Stax Overview
From the very beginning, Java API for XML Processing (JAXP) provides two methods to process XML: t
Let's briefly describe the first three methods:
DOM Mode: I personally understand XmlDocument similar to. net. It is inefficient at parsing, occupies memory, and is not suitable for parsing large XML files;SAX Mode: Event-based parsing. When a part of xml is parsed, a specific event is triggered. You can define in a custom parsing class what to do when an event is triggered; I personally feel that there is a very different way, I don't know. is there a similar way under the. Net system?
The current project needs to convert XML to map, and the following gives its own code implementation. Ask the great gods to provide better code implementations.Scene:XML text strings need to be parsed in the project, and XML text strings need to be mapped to objects in map format.Demand:1, in order to improve performance, need to use Stax to parse2, map structure inside need to support list, map, string three data formatExample:Example one: * string:E
Using Stax to manipulate XML is very simple, and its reading process is like a cursor moving. Different processing is done for different nodes.Let's look at a cursor-based model for XML processing:public class Staxtest {@Test public void test1 () {try {//1.Build Xmlstreamreader xmlinputfactory factory = xmlinputfactory. newinstance();Xmlstreamreader reader = Factory. Createxmlstreamreader(Staxtest. Class . getResourceAsStrea
time it takes to run tests manually in each environment.
Automated regression testing can use the same test bed as the incremental test. For example, after you set the regression test to run once a day, you do not need to consume resources that would normally be used for development and incremental testing. You can set up a lengthy regression test to run at a longer interval, such as running on a weekend.
Staf/stax Framework
The Software Test auto
1:set Collection (understanding)(1) Features of Set setUnordered, unique(2) HashSet collection (master)A: The underlying data structure is a hash table (is an array of elements as linked lists)B: Hash table bottom-dependent two methods: Hashcode () and Equals ()Execution orderFirst, compare whether the hash value is the sameSame: Continue to execute equals () methodReturns true: The element is duplicated, n
Collection interface of collection framework, Collection framework
The Root Interface in the Collection hierarchy. Collection represents a group of objects, also known as collection elements. Some collections allow repeated el
Java Virtual Machine garbage collection (ii) garbage collection algorithm
mark-Purge algorithm replication algorithm mark-Collation algorithm generation collection algorithm train algorithm
In the Java Virtual Machine garbage collection (i) basics, learn how to determine whether an object is alive or dead. This paper
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