{"id":1792,"date":"2017-05-16T08:13:08","date_gmt":"2017-05-16T08:13:08","guid":{"rendered":"https:\/\/www.enprowess.com\/blogs\/?p=1792"},"modified":"2022-04-27T16:01:24","modified_gmt":"2022-04-27T10:31:24","slug":"struts-action-hook-dxp","status":"publish","type":"post","link":"https:\/\/www.enprowess.com\/blogs\/struts-action-hook-dxp\/","title":{"rendered":"Learn Liferay DXP Struts Action Hook in 4 simple steps"},"content":{"rendered":"<p>Welcome to our \u201cHow To?\u201d series of post. In this series, we are talking about different development concept in Liferay DXP\/7. In this post, I am going to talk about Struts Action Hook.<\/p>\n<p>Liferay offers following list of hooks to override default behaviour of out-of-the-box features,<\/p>\n<ul>\n<li>Filter Hook<\/li>\n<li>JSP Hook<\/li>\n<li>Model Listener hook<\/li>\n<li>Struts Action Hook<\/li>\n<li>Language properties Hook<\/li>\n<li>Service Wrapper Hook<\/li>\n<\/ul>\n<p>\nMany Liferay portlets are implemented using Struts. If you want to change the behaviour of existing portlet you certainly need a mechanism to override its action class. Struts Action hook is used to override existing struts action. Struts action hook help you to achieve it.<\/p>\n<p>Here I assume that you have already read previous posts and installed JDK1.8, Liferay 7\/DXP and IDE. These are the prerequisite to proceed with implement Struts action hook.<\/p>\n<p>Now let\u2019s understand the steps to implement struts action hook.<br \/>\n<\/p>\n<ol>\n<li><strong><br \/>\n<h4>Create Liferay WorkSpace Project<\/h4>\n<p><\/strong>:<\/li>\n<\/ol>\n<p>To create a Liferay Workspace in IDE follow this:<br \/>\n<br \/>\nSelect File \u2192 New \u2192 Liferay Workspace Project Upon creation of the workspace, the structure should look like below:<br \/>\n<br \/>\n<img loading=\"lazy\" class=\"size-full wp-image-1793 alignnone\" src=\"https:\/\/www.enprowess.com\/blogs\/wp-content\/uploads\/2017\/05\/struts1.png\" alt=\"Create Liferay WorkSpace Project\" width=\"252\" height=\"300\" \/><br \/>\n<\/p>\n<ol start=\"2\">\n<li><strong><br \/>\n<h4>Create Liferay Module Project<\/h4>\n<p><\/strong>:<\/li>\n<\/ol>\n<p>You need to create module project for Struts Action hook. Following are the steps to create module,<br \/>\n<br \/>\nClick on\u00a0File menu \u2192 Click New \u2192 Select Liferay Module Project and provide project name as StrutsActionHook and click next. See following screenshot for your reference,<br \/>\n<br \/>\n<img loading=\"lazy\" class=\"size-full wp-image-1794 alignnone\" src=\"https:\/\/www.enprowess.com\/blogs\/wp-content\/uploads\/2017\/05\/struts2.png\" alt=\"Create Liferay Module Project\" width=\"546\" height=\"414\" \/><br \/>\n<br \/>\nProvide appropriate class name and package name for the class. For this example, I am providing class name as UpdateEmailStrutsAction.<br \/>\n<br \/>\n<img loading=\"lazy\" class=\"size-full wp-image-1795 alignnone\" src=\"https:\/\/www.enprowess.com\/blogs\/wp-content\/uploads\/2017\/05\/struts3.png\" alt=\"Provide appropriate class name and package name\" width=\"547\" height=\"414\" \/><br \/>\n<br \/>\nAfter you finish the wizard, you should see project structure in eclipse as follow,<br \/>\n<br \/>\n<img loading=\"lazy\" class=\"size-full wp-image-1796 alignnone\" src=\"https:\/\/www.enprowess.com\/blogs\/wp-content\/uploads\/2017\/05\/struts4.png\" alt=\" project structure\" width=\"384\" height=\"286\" \/><br \/>\n<\/p>\n<ol start=\"3\">\n<li><strong><br \/>\n<h4>Implement Component<\/h4>\n<p><\/strong>:<\/li>\n<\/ol>\n<p>You successfully created project structure. Now it\u2019s time to implement business logic to update email address. Implement @Component as follow in class,<br \/>\n<br \/>\n<img loading=\"lazy\" class=\"size-full wp-image-1797 alignnone\" src=\"https:\/\/www.enprowess.com\/blogs\/wp-content\/uploads\/2017\/05\/struts5.png\" alt=\"Implement Component\" width=\"297\" height=\"171\" \/><br \/>\n<\/p>\n<ol start=\"4\">\n<li><strong><br \/>\n<h4>Override execute method <\/h4>\n<p><\/strong>:<\/li>\n<\/ol>\n<p>Ensure that your class extends BaseStrutsAction class. To implement business logic override, execute() method as follow,<br \/>\n<br \/>\n<img loading=\"lazy\" class=\"size-full wp-image-1798 alignnone\" src=\"https:\/\/www.enprowess.com\/blogs\/wp-content\/uploads\/2017\/05\/struts6.png\" alt=\"Override execute method\" width=\"604\" height=\"280\" \/><\/p>\n<p>Congratulation! You successfully implemented struts hook. Now let\u2019s quickly understand what you exactly implemented.<\/p>\n<p>In @Component, you configured struts action i.e. \u2018\/portal\/update_email_address\u2019 to instruct container that when user trigger action to update email, please execute business logic mentioned in my class.<\/p>\n<p>In case you want to override different action then mentioned in this example, You can see \u2018struts-config.xml\u2019 file to know all out-of-the-box struts actions. You can find this file on following path in your IDE.<\/p>\n<p>tomcat server \u2192 liferay-ce-portal-7.0-ga3 \u2192 tomcat-8.0.32 \u2192 webapps \u2192 ROOT \u2192 WEB-INF \u2192 struts-config.xml.<\/p>\n<p>I hope this post will help you to implement struts hook easily in Liferay DXP. In my next post, I will share \u2018How to?\u2019 steps for different implementation in DXP, till then keep learning!<\/p>\n<p>Blog by,<br \/>\n<br \/>\nMaitrik Panchal<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Welcome to our \u201cHow To?\u201d series of post. In this series, we are talking about different development concept in Liferay DXP\/7. In this post, I am going to talk about Struts Action Hook. Liferay offers following list of hooks to override default behaviour of out-of-the-box features, Filter Hook JSP Hook Model Listener hook Struts Action&hellip; <a class=\"more-link\" href=\"https:\/\/www.enprowess.com\/blogs\/struts-action-hook-dxp\/\">Continue reading <span class=\"screen-reader-text\">Learn Liferay DXP Struts Action Hook in 4 simple steps<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1802,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8,46],"tags":[39,18,19,10,16,50],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Learn Liferay DXP Struts Action Hook in 4 simple steps - EnProwess Blog<\/title>\n<meta name=\"description\" content=\"Do you want to learn hook development in Liferay 7\/DXP? 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