struts2 upgrade 2.3 to 2.5 migration 升级向导


Update Struts dependencies to 2.5.

Remove the following plugin dependencies because they were dropped and aren’t supported anymore.

  • Dojo Plugin
  • Codebehind Plugin
  • JSF Plugin
  • Struts1 Plugin


The was moved to org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.

In web.xml replace this:


with that:


There were other package changes, please read Version Notes 2.5 for more details.


Struts DTD was updated to 2.5 version.

In struts.xml replace 2.3 DTD version:

        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

with 2.5:

        "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"

Tags attributes

The id attribute was replaced with var attribute in the following tags.

  • <s:action>
  • <s:append>
  • <s:bean>
  • <s:date>
  • <s:generator>
  • <s:iterator>
  • <s:merge>
  • <s:number>
  • <s:set>
  • <s:sort>
  • <s:subset>
  • <s:text>
  • <s:url>

If you have something like that in your code:

<s:url id="url" action="login">

change it to:

<s:url var="url" action="login">

The <s:set> tag name attribute is replaced with var attribute.


<s:set id="str1" value="'string1 value'" />
<s:set name="str2" value="'string2 value'" />


<s:set var="str1" value="'string1 value'" />
<s:set var="str2" value="'string2 value'" />

Also escape attribute was renamed to escapeHtml attribute.


<s:property escape="true" var="someProperty"/>


<s:property escapeHtml="true" var="someProperty"/>

Div tag

The <s:div> tag was dropped.

Replace <s:div> with plain HTML <div> tag.

Field names

If you have field names which starts with single lower case letter, for example:

private String sTrng;
public String getSTrng() {...}
public void setSTrng(String str) {...}

change accessors to getsTrng and setsTrng.

Or better yet, change field names to not contain single lower case letter:

private String strng;
public String getStrng() {...}
public void setStrng(String str) {...}

For additional info see WW-3909.


Depending on from which version of struts you upgrade and whether you used tiles-plugin or tiles3-plugin you may need to do different steps.

Struts 2.5 just provides a tiles-plugin which uses Tiles3. So support for Tiles2 has been dropped as well as the name tiles3-plugin.

Now the only maven dependency looks like this:

maven dependecy for tiles-plugin

You may need to update DTD in your tiles.xml files to Tiles3:

tiles3 dtd
<!DOCTYPE tiles-definitions PUBLIC
       "-//Apache Software Foundation//DTD Tiles Configuration 3.0//EN"

A Listener in web.xml is required. It is not necessary to configure paths to tiles.xml files here as they are picked up automatically.

StrutsTilesListener in web.xml

Optionally you may remove TilesDefinitions from XML and annotate actions instead. See Tiles Plugin for more details.

Temp/Work directory of ApplicationServer/ServletContainer

Users reported it was necessary for them to remove temp/work directory of their ApplicationServer/ServletContainer. Likely to force server to recompile JSPs.