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Parameters in configuration results
- Parameters in configuration results
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- Added by Dariusz Wojtas, last edited by Dariusz Wojtas on Feb 03, 2007 (view change)
- Sometimes there is a need to redirect from one action to another, but you do not know the exact url or the destination url requires parameters that are only known in runtime.
-
- Struts 2 gives you easy to use solution for that problem.
-
- Parameters in action result definitions
- <struts>
- ....
- <package name="somePackage" namespace="/myNamespace" extends="struts-default">
- <action name="myAction" class="com.project.MyAction">
- <result name="success" type="redirect-action">otherAction?id=${id}result>
- <result name="back" type="redirect">${redirectURL}result>
- action>
-
- <action name="otherAction" class="com.project.MyOtherAction">
- ...
- action>
- package>
- ....
- struts>
- The only requirement is to declare the necessary properties in your action, in this case com.project.MyAction should define properties id and redirectURL with standard accessor methods.
-
- public class MyAction extends ActionSupport {
- private int id;
- private String redirectURL;
- ...
-
-
- public String execute() {
- ...
- if (someCondition) {
- this.redirectURL = "/the/target/page.action";
- return "back";
- }
-
- this.id = 123;
- return SUCCESS;
- }
-
- public int getId() { return this.id; }
- public void setId(int id) { this.id = id; }
- public String getRedirectURL() { return this.redirectURL; }
- public void setRedirectURL(String redirectURL) { this.redirectURL= redirectURL; }
- ...
- }
- In the above code if it returns SUCCESS then the browser will be forwarded to
- /<app-prefix>/myNamespace/otherAction.action?id=123
-
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