WebWork安裝和配置淺析
1、下載和WebWork的安裝
(1)本教程基于WebWork 2.1版本,在webwork.dev.java.net網(wǎng)站上下載webwork-2.1.zip;
(2)將壓縮包解壓,使用WebWork安裝所需要的lib包括webwork-2.1.jar和lib/core文件夾中的jar文件
2、建立Web應(yīng)用程序
(1)這里假設(shè)你安裝了Servlet容器,并知道如何創(chuàng)建一個Web應(yīng)用程序;如果你不知道,建議學(xué)習(xí)Apache Tomcat(Apache Jakarta項目中的一個免費Servlet容器);
(2)復(fù)制需要的運行庫(webwork-2.1.jar和lib/core/*.jar)到Web應(yīng)用程序的WEB-INF/lib文件夾中;
(3)WebWork配置web.xml、xwork.xml和validators.xml文件;
(4)web.xml看起來象下面的樣子:
- <?xml version="1.0"?>
- <!DOCTYPE web-app PUBLIC "-//Sun Microsystems,
- Inc.//DTD Web Application 2.3//EN"
- "http://java.sun.com/dtd/web-app_2_3.dtd">
- <web-app>
- <display-name>My WebWork Application</display-name>
- <servlet>
- <servlet-name>webwork</servlet-name>
- <servlet-class>
- com.opensymphony.webwork.dispatcher.ServletDispatcher
- </servlet-class>
- <load-on-startup>1</load-on-startup>
- </servlet>
- <servlet-mapping>
- <servlet-name>webwork</servlet-name>
- <url-pattern>*.action</url-pattern>
- </servlet-mapping>
- <taglib>
- <taglib-uri>webwork</taglib-uri>
- <taglib-location>/WEB-INF/lib/webwork-2.1.jar
- </taglib-location>
- </taglib></web-app>
為了使用WebWork,必須注冊ServletDispatcher,并映射到*.action;作為可選,如果要使用WebWork的tags,要聲明WebWork的taglib描述;
(5)在WEB-INF/classes目錄下創(chuàng)建WebWork的配置文件xwork.xml,下面是一個配置框架(會在教程的后面增加內(nèi)容):
- <!DOCTYPE xwork PUBLIC
- "-//OpenSymphony Group//XWork 1.0//EN"
- "http://www.opensymphony.com/xwork/xwork-1.0.dtd">
- <xwork>
- <!-- Include webwork defaults (from WebWork-2.1 JAR).
- -->
- <include file="webwork-default.xml" />
- <!-- Configuration for the default package. -->
- <package name="default" extends="webwork-default">
- </package>
- </xwork>
這做兩件事:
◆導(dǎo)入webwork-default.xml(位于webwork-2.1.jar中)的配置信息,包含WebWork應(yīng)用程序的缺省配置;
◆定義名為default的package,用于actions、 results和interceptors的注冊;這個package繼承webwork-default,以繼承其中定義的配置;
(6)在WEB-INF/classes目錄下創(chuàng)建validators.xml。包括以下內(nèi)容:
- <!DOCTYPE validators PUBLIC
- "-//OpenSymphony Group//XWork Validator1.0//EN"
- "http://www.opensymphony.com/xwork/
- xwork-validator-1.0.dtd">
- <validators>
- <validator name="required"
- class="com.opensymphony.xwork.validator.validators.
- RequiredFieldValidator"/>
- <validator name="requiredstring"
- class="com.opensymphony.xwork.validator.validators.
- RequiredStringValidator"/>
- <validator name="int"
- class="com.opensymphony.xwork.validator.validators.
- IntRangeFieldValidator"/>
- <validator name="date"
- class="com.opensymphony.xwork.validator.validators.
- DateRangeFieldValidator"/>
- <validator name="expression"
- class="com.opensymphony.xwork.validator.validators.
- ExpressionValidator"/>
- <validator name="fieldexpression"
- class="com.opensymphony.xwork.validator.validators.
- FieldExpressionValidator"/>
- <validator name="email"
- class="com.opensymphony.xwork.validator.validators.
- EmailValidator"/>
- <validator name="url"
- class="com.opensymphony.xwork.validator.validators.
- URLValidator"/>
- <validator name="visitor"
- class="com.opensymphony.xwork.validator.validators.
- VisitorFieldValidator"/>
- <validator name="conversion"
- class="com.opensymphony.xwork.validator.validators.
- ConversionErrorFieldValidator"/>
- </validators>
這個文件定義可以使用的有效Validators。
【編輯推薦】