Getting Started
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Introduction |
This document contains the release notes for
Version 1.0 of the Struts Framework,
and covers changes that have taken place since
Version 1.0-beta-3
was released. The following sections cover
New Features and Changes
to Struts.
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What's Included? |
The binary distribution of this release includes the following
files relevant to Struts 1.0:
INSTALL - Brief installation instructions. See
the Struts Documentation Application , or online at
http://jakarta.apache.org/struts/
for more information.
LICENSE - The Apache Software Foundation license that
defines the terms under which you can use Struts (and other software
licensed by Apache).
README - A brief introduction to Struts.
lib/ - Directory containing files you will need in
your own applications. The individual files of interest are:
struts.jar - JAR file that contains the compiled
Java classes for both version 0.5 and 1.0 of Struts. You must
place this file in the /WEB-INF/lib directory of
your web application.
struts-xxxxx.tld - The tag library descriptor files
for the Struts 1.0 tag libraries (bean, html, logic, and
template). You must place these files in the /WEB-INF
directory of your web application, and reference them with
appropriate <taglib> directives in your
web.xml file. NOTE - The struts-form.tld
file is deprecated; you should use the struts-html.tld file
instead.
jdbc2_0-stdext.jar - The JDBC 2.0 Optional Package
API classes (package javax.sql ). You will need to
include this file in the /WEB-INF/lib directory
of your application, if it is not already made visible to web
applications by your servlet container.
struts-config_1_0.dtd - The document type descriptor
(DTD) for the Struts configuration file (which is typically named
/WEB-INF/struts-config.xml . Your configuration file
will be validated against an internal copy of this DTD -- this
copy is available for reference purposes only.
web-app_2_2.dtd - The document type descriptor (DTD)
for web.xml files conforming to the Servlet 2.2 specification.
This copy is for reference purposes only.
web-app_2_3.dtd - The document type descriptor (DTD)
for web.xml files conforming to the Servlet 2.3 specification.
This copy is for reference purposes only.
webapps/ - Web Application Archive (WAR) files for the
web applications that are included with Struts.
For backwards compatibility only, the binary distribution also
includes the following files that conform to the Struts 0.5 milestone
release APIs. Usage of these files and APIs is deprecated, and they
will be removed from releases after Struts 1.0:
lib/ - Directory containing files you will need in
your own applications. The individual files of interest are:
struts.jar - JAR file that contains the compiled
Java classes for both version 0.5 and 1.0 of Struts. You must
place this file in the /WEB-INF/lib directory of
your web application.
struts.tld - The tag library descriptor file for
the 0.5 version of the Struts tags. You must place this file
in the /WEB-INF directory of your web application,
and reference it with appropriate <taglib>
directives in your web.xml file.
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What's New? |
DEPRECATIONS - The entire custom tag library
that is documented in struts.tld has been deprecated.
These tags correspond to the Struts 0.5 functionality that is also
deprecated, and have been replaced (and considerably enhanced) in
the various individual tag libraries.
DEPRECATIONS - The entire custom tag library
that is documented in struts-form.tld has been deprecated
because this library has been renamed struts-html.tld
instead.
DEPRECATIONS - Several classes in the
org.apache.struts.util package have been marked as
deprecated in their entirety, because they will be replaced by
versions from the Jakarta Commons project once those packages are
released. These deprecated classes will not be
removed until a release after Struts 1.1. In general, the only
change required inside user code using these classes will be to
update the import statement. The following classes
are involved:
- ArrayStack
- BeanUtils
- ConvertUtils
- FastArrayList
- FastHashMap
- FastTreeMap
- GenericConnection
- GenericDataSource
- PropertyUtils
The following new features have been added to the basic controller
framework (package org.apache.struts.action ):
The following new features have been added to the utility classes
(package org.apache.struts.util ):
The following new features have been added to the
struts-html custom tag library (package
org.apache.struts.taglib.html ):
- The
<html:link> tag now supports the optional
title attribute, that causes some browsers to display
alternate text when the mouse is hovered over a hyperlink.
The following new features have been added to the
struts-logic custom tag library (package
org.apache.struts.taglib.logic ):
- The
<logic:iterate> tag now supports a new
attribute, indexId . This attribute names a page scope
attribute (and corresponding scripting variable) that will be
exposed in the nested body of the iteration, which will contain
the current loop index as a java.lang.Integer.
The following new features have been added to the
struts-template custom tag library (package
org.apache.struts.taglib.template ):
The following new features have been added to the Struts Documentation
application (and corresponding contents on the Struts web site):
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Changes and Bug Fixes |
The following changes and bug fixes have occurred in the configuration
files related to Struts:
- The documentation about configuring a data source element in the
struts-config.xml file has been updated to emphasize
the use of <set-property> elements nested inside
the <data-source> element. No further additional
attributes will be added to the <data-source>
element in the DTD to support custom properties of particular
data source implementations.
The following changes and bug fixes have occurred in the basic
controller framework (package org.apache.struts.action ):
- Several issues introduced with the internal wrapping of multipart
requests have been fixed.
- The instance variables in the
ActionForm base class
are now transient, so that ActionForm instances can
actually be serialized. WARNING - If you deserialize
such an ActionForm instance and attempt to use it within
the Struts framework, be sure to call setServlet() (and
setMultipartRequestHander() if appropriate) first.
The following changes and bug fixes have occurred in the file upload
package (package org.apache.struts.upload ):
- Fixed a bug that could cause corruption in the uploaded file,
by converting sequences of \r\n\n into \r\n\r\n.
The following changes and bug fixes have occurred in the utilities
(package org.apache.struts.util ):
- Corrected a cut-and-paste typo that caused NullPointerException
on attempts to use the new
pingQuery property that
was added in Struts 1.0-b3.
- Fix operation ordering so that
RequestUtils.lookup()
will throw a JspException when the specified bean is missing, in
accordance with its JavaDoc documentation.
- Digester calls to
Rule.body() methods will now trim
leading and trailing whitespace first, consistent with the behavior
of other body processing performed within the rules.
- Correct the calculation of an absolute URL from a context-relative
path in
RequestUtils.absoluteURL() .
The following changes and bug fixes have occurred in the
struts-bean custom tag library (package
org.apache.struts.taglib.bean ):
- The
<bean:include> tag will now pass a session
identifier on to the included request (assuming that it is part of
the same web application), even if the current request is maintaining
session identity with cookies. Previously, this only worked if you
were using URL rewriting.
The following changes and bug fixes have occurred in the
struts-html custom tag library (package
org.apache.struts.taglib.html ):
- For all tags where Struts generates attributes that are allowed to
be minimized in the HTML specification (i.e. checked, disabled,
multiple, readonly, and selected), generate attribute values equal
to the attribute name, as required by HTML 4.01, section 3.3.4.
For example, generate
checked="checked" instead of
checked="true" for the "checked" attribute.
- Correctly generate a
<a name="my name"><>
element when the linkName attribute is used on the
<html:link> tag.
The following changes and bug fixes have occurred in the
struts-logic custom tag library (package
org.apache.struts.taglib.logic ):
- Update the processing performed by the
<logic:present> and
<logic:notPresent> tags to reflect the changed
behavior of RequestUtils.lookup() .
The following changes and bug fixes to the Struts Documentation
application (and corresponding contents on the Struts web site) have
occurred:
- Links to subscribe and unsubscribe from the STRUTS-DEV and
STRUTS-USER mailing lists have been added to the home page.
- Miscellaneous corrections to typos and hyperlinks.
- Cleaned up problems in the stylesheets used to create documentation
pages that formerly emitted
<project> tags in the
generated HTML, and generated incorrect references to link colors in
the navigation bar.
- Added a "Who We Are" page to the documentation.
The following changes and bug fixes to the Struts Example Application
have occurred:
- The
name and page attributes of the
<app:checkLogon> tag now accept runtime
expressions.
The following changes and bug fixes to the Struts Template Example
Application have occurred:
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