January 23, 2015 Summarize learning techniques used

I am free today, I want to sort out all the knowledge I have used, and I have done a lot of things. It is limited to completing the function and completing the work, but after I have done it, I forget it. I have to tap such a function again with my bare hands. I went to check and reference again, and found that I still did not really understand and learn, so I will organize and understand it well today.
1. The tag library used by the company The company uses
  the function of calling advertisements in the form of custom tags. It uses the tag library in the front-end configuration to read data according to the advertisement code.
Custom tags are implemented in the Default Adapter mode (default adaptation mode) by inheriting the extends TagSupport class.

2. Image upload function
<script type="text/javascript" src="<%=staticPath %>js/plugin/artDialogImg/artDialog.js?skin=default"></script>
<script type="text/javascript " src="<%=staticPath %>js/plugin/artDialogImg/plugins/iframeTools.js"></script>

3. Text editor function
Use ueditor plug-in

4. Time plug-in
Use My97DatePicker plug-in

5. Countdown plug-in
countdown plug-in

6 , xml parsing
The first : DOM.
The full name of DOM is Document Object Model, which is the Document Object Model. In an application, a DOM-based XML parser converts an XML document into a collection of object models (usually called a DOM tree), and the application implements operations on XML document data through the manipulation of this object model. Through the DOM interface, the application can access any part of the data in the XML document at any time. Therefore, this mechanism using the DOM interface is also called the random access mechanism.

sax: The full name of SAX is Simple APIs for XML, which is the XML Simple Application Program Interface. Unlike DOM, the access mode provided by SAX is a sequential mode, which is a fast way to read and write XML data. When using the SAX analyzer to analyze the XML document, it will trigger a series of events and activate the corresponding event processing functions. The application program accesses the XML document through these event processing functions, so the SAX interface is also called the event-driven interface. .

JDOM:
JDOM is an open source project, which is based on a tree structure and uses pure JAVA technology to parse, generate, serialize and perform various operations on XML documents. (http://jdom.org)

• JDOM directly serves JAVA programming. It takes advantage of many features of the more powerful JAVA language (method overloading, collection concepts, etc.) to effectively combine the capabilities of SAX and DOM.

• JDOM is a new API function for reading, writing and manipulating XML in Java language. Under the premise of directness, simplicity and efficiency, these API functions are optimized to the maximum extent.

Dom4j

7. Dubbo Service Understand that

Dubbo is the core framework of Alibaba's SOA service-based governance solution. It provides 3,000,000,000+ visits per day for 2,000+ services and is widely used in Alibaba Group member sites:
Dubbo is a distributed service framework dedicated to providing high-performance and transparent RPC remote service invocation solutions, as well as SOA service governance solutions.