Webwork provides several implementations of the com.opensymphony.xwork.Result
interface to make web-based interactions with your actions simple. These result types include:
Result Type | name | class |
---|---|---|
dispatcher | com.opensymphony.webwork.dispatcher.ServletDispatcherResult | |
redirect | com.opensymphony.webwork.dispatcher.ServletRedirectResult | |
chain | com.opensymphony.xwork.ActionChainResult | |
velocity | com.opensymphony.webwork.dispatcher.VelocityResult | |
freemarker | com.opensymphony.webwork.views.freemarker.FreemarkerResult | |
jasper | com.opensymphony.webwork.views.jasperreports.JasperReportsResult | |
xslt | com.opensymphony.webwork.views.xslt.XSLTResult |
Results are specified in xwork.xml nested inside actions. The location
param is the default parameter, meaning you can specify the location two ways:
Code Block |
---|
<action name="bar" class="myPackage.barAction"> <result name="success" type="dispatcher"> <param name="location">foo.jsp</param> </result> </action> |
or
Code Block |
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<action name="bar" class="myPackage.barAction"> <result name="success" type="dispatcher">foo.jsp</result> </action> |
Dispatcher
Anchor | ||||
---|---|---|---|---|
|
Includes or forwards a view (usually a jsp)
Parameters | Required | Description |
---|---|---|
location | yes | the location to go to after execution (ex. jsp) |
parse | no | true by default. If set to false, the location param will not be parsed for Ognl expressions |
Code Block |
---|
<result name="success" type="dispatcher"> <param name="location">foo.jsp</param> </result> |
Redirect
Anchor | ||||
---|---|---|---|---|
|
The response is told to redirect the browser to the specified location. The consequence of doing this means that the action that was just executed is lost or no longer available. This is because actions are built on a single-thread model.
NOTE: You may want to set the parse
attribute to false so the location is not parsed for Ognl expressions.
Parameters | Required | Description |
---|---|---|
location | yes | the location to go to after execution |
parse | no | true by default. If set to false, the location param will not be parsed for Ognl expressions |
Code Block |
---|
<result name="success" type="redirect"> <param name="location">foo.jsp</param> <param name="parse">false</param> </result> |
Action Chaining
Anchor | ||||
---|---|---|---|---|
|
A special kind of view that invokes GenericDispatch (using the previously existing ActionContext) and executes another action. This is useful if you need to execute one action immediately after another.
Parameters | Required | Description |
---|---|---|
actionName | yes | the name of the action that will be chained to |
Code Block |
---|
<result name="success" type="chain"> <param name="actionName">bar</param> </result> |
invokes this
Code Block |
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<action name="bar" class="myPackage.barAction"> ... </action> |
Velocity
Anchor | ||||
---|---|---|---|---|
|
This result mocks a JSP execution environment and then displays a Velocity template that will be streamed directly to the servlet output.
Parameters | Required | Description |
---|---|---|
location | yes | the location to go to after execution |
parse | no | true by default. If set to false, the location param will not be parsed for Ognl expressions |
Code Block |
---|
<result name="success" type="velocity"> <param name="location">foo.vm</param> </result> |
FreeMarker
Anchor | ||||
---|---|---|---|---|
|
Parameters | Required | Description |
---|---|---|
location | yes | the location to go to after execution |
parse | no | true by default. If set to false, the location param will not be parsed for Ognl expressions |
contentType | no | defaults to "text/html" unless specified |
Code Block |
---|
<result name="success" type="freemarker">foo.ftl</result> |
JasperReports
Anchor | ||||
---|---|---|---|---|
|
Generates a JasperReports report using the specified format or PDF if no format is specified.
Parameters | Required | Description |
---|---|---|
location | yes | the location to go to after execution |
parse | no | true by default. If set to false, the location param will not be parsed for Ognl expressions |
dataSource | yes | the Ognl expression used to retrieve the datasource from the value stack (usually a List) |
format | no | the format in which the report should be generated, defaults to pdf |
Code Block |
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<result name="success" type="jasper"> <param name="location">foo.jasper</param> <param name="dataSource">mySource</param> <param name="format">CSV</param> </result> |
or for pdf
Code Block |
---|
<result name="success" type="jasper"> <param name="location">foo.jasper</param> <param name="dataSource">mySource</param> </result> |
XML/XSL
Anchor | ||||
---|---|---|---|---|
|
Interfaces with xml transformations.
Parameters | Required | Description |
---|---|---|
location | yes | the location to go to after execution |
parse | no | Defaults to false. If set to true, the location will be parsed for Ognl expressions |
Code Block |
---|
<result name="success" type="xslt">foo.xslt</result> |