JSP+XML的技术纲要(2)

2022-07-15 80酷酷网 80kuku.com

　　js|xml

– Resources
– Mappings
– Filters (JSP 1.2)
– 其它

3 现状

3.1 业界支持

容器方面：
Apache,Allaire,ATG Dynamo,BEA Weblogic,Bluestone,Caucho,Gemstone,IBM’s WebSphere
Inprise AppServer,Iplanet iWS, iAS, Oracle,Persistence, Unify

一些用户：
PeopleSoft，I2，CP ...

一些站点：
Delta.com, Food.com, CarOrder.com ...

工具
MacroMedia UltraDev，Adobe GoLive，Unify eWeb Studio，WebGain’s Studio
Forte for Java，Oracle Jdeveloper，Inprise Jbuilder，ATG Dynamo， ...

3.2 新的JSP & Servlets技术

* JSR-053
* Servlet 2.3
– Filters
– Application Events
* JSP 1.2
– JSP页面的XML方式查询
– 许多改进和增强
* Apache组织的推行
– jakarta.apache.org/tomcat

3.3 JSP Tag Library

* JSR-052
* 标准的JSP tag library
– 丰富的功能
– XSLT
– XPATH
– 其它的XML的进程
– Apache组织的推进（ jakarta.apache.org/taglibs）

3.4 框架的支持

* J2EE体系
* JSP/Servlet体系
– Struts
– Apache组织的推进（jakarta.apache.org/struts）

3.5 JSP工具支持

* 大多数情况下是为页面作者提供的
– 有一些是为TagLib工作者提供
* 已经存在于一些工具中
– 例如，UltraDev支持Struts
* 近6个月的预测
– 标准的taglib将出现，还有各种其他的taglib

3.6 XML解析和转化

* JAXP 1.1
– 下一代 J2SE(JDK)的组成部分
– DOM level 2
– XSLT
– 和TRaX (XSLT激活)进行组合
– Apache组织的推进
* XSLTC
– XSLT编译器
– 更快，更小的脚本

3.7 数据绑定

Beans Long Term Persistance
* Adelard
– 下一代J2SE的组成部分
– 数据绑定
* JavaBeans Long Term Persistance
– 下一代 J2SE的组成部分
– 图形化Swing机制

3.8 XML Messaging

* XML messaging
– JMS
– ebXML
– JAXM
– Message Beans (J2EE 1.3)

(剧终)

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为防误译，特附原来文档，这是sun站点的官方pdf文档，有685K，我特地从中裁剪出来的。:)

JSP Technology and XML技术纲要
Eduardo Pelegri-Llopart
Sun Microsystems
pelegrieng.sun.com
http://java.sun.com/jsp

提纲
* JSP, Servlets & J2EE
* JSP and XML
* Status

1 JSP, Servlets & J2EE
1。1 J2EE Platform

* Specification
* Compatibility Tests
* Reference Implementation (RI)
* Rich Functionality
– JSP and Servlets
– JDBC
– EJB
– JMS
– Connector to EIS (J2EE 1.3)

1。2 J2EE Benefits

* Common Mindshare
– Documentation
– Training
– Tool Support
* Portability
* Best-of-Breed Implementations

1。3 Web Layer of J2EE
（插图1)

1.4 Role of JSP and Servlets
* Entry point to application
* Interacts with the exterior
* Usually through HTTP
* Client may be:
* Browser
* Applet
* Desktop application (Java Web Start)
* Wireless Device
* Server application (B2B)

1.5 JSP and Servlets
* Can be used in
– JSP & Servlet Container
– J2EE Container
* Common mindshare
* Best-of-breed implementation
* Wide support

1.6 What Is a Servlet?
* Extension mechanism
* Dynamic content generation
* Mapped to URLs
* Simple architecture
* Managed by container

1.7 JSP Page
* A textual document
* Describes a request – response map
* Servlet Semantics

1.8 一个例子
<?xml version="1.0">
<% page contentType=”text/xml” %>
<% taglib prefix="x" uri="..." %>
<wml>
<card id="card1" title="Flowers">

Flowers available:
 
<x:enumerate inventory="flowers"
id="aFlower">
<%= aFlower.type %>
 
</x:iterate>
 

</card>
</wml>

1.9 JSP Page
* A textual document
* Builds on
– Template data
– Dynamic content
* Tool friendly
* Abstraction using
– JavaBeans
– Tag Libraries

1.10 Tag Libraries
* Abstraction Mechanism
* XML syntax
* Run-Time Protocol
– Integration into a JSP page
– Easy to compose and customize
– Managed by JSP container
– Simple protocol for simple needs

1.11 Roles Involved
* Page and Site Author
– Creates presentation from developer data
– Expert in UI
– Uses Tag Libraries & JavaBeans
– Page Authoring tools
* Developer
– Provides access to data for page author
– Expert in server-side organization
– Defines Tag Libraries & JavaBeans
– IDEs

2 JSP & XML
2.1 Uses of XML in JSP Technology
JSPs Pages
– Consuming XML
– Generating XML
– Transforming XML
* JSP Pages as XML documents
* XML configuration

2.2 Consuming XML
* Parse XML into objects (by developer)
– Hand-coded
– Using Adelard Technology
* Parse and Iterate abstraction
* Insert after transformation
– XSLT

2.3 Parse Into Object