struts

I came to know about null check using $null in velocity 1.6 through a resource updated by you. Resource: Reading model objects mapped in Velocity Templates But I am facing so many challenges that there is no $null for null check in velocity as there is no documentation provided about this. Please provide me with documentation stating $null as valid for null check in velocity. Thanks in Advance lucky To check if a variable is not null simply use #if ($variable) #if ($variable) ... do stuff here if the variable is not null #end If you need to do stuff if the variable is null simply negate the

Spring如何整合struts2？ 1) 整合目标？ 使IOC容器来管理Struts2的Action！ 2) 如何进行整合？ ① 正常加入Struts2 ② 在Spring的IOC容器中配置Struts2的Action 特别注意：在IOC容器中配置Struts2的Action时，需要配置scope属性，且必须指定为prototype！ <bean id="personAction" class="com.lty.spring.struts2.action.PersonAction" scope="prototype"> <property name="personService" ref="personService"></property> </bean> ③ 配置Struts2的配置文件: action节点的class属性需要指向IOC容器中该bean的id <action name="person-save" class="personAction"> <result>/success.jsp</result> </action> ④ 加入struts2-spring-plugin-2.3.15.3.jar 3)整合原理 通过添加struts2-spring-plugin-2.3.15.3.jar以后，Struts2会先从IOC容器中获取Action的实例 if

If I have an action where the result is a redirectAction to another action in a different class, is it possible to get validation errors to display in the resulting action? E.g. in the following example, if a user executes actionA (which has no views associated with it), and there are errors, is there any way to display those errors in the actionB result (foo.jsp)? Or am I going about this in completely the wrong way? <package name="a" extends="struts-default" namespace="/a"> <action name="actionA" class="actionAClass"> <result name="input" type="redirectAction"> <param name="actionName"

I'm developing a simple "Book Store" project using Struts 1.3 + JPA (with Hibernate as persistence provider). I cannot switch to Spring or any other more sophisticated development environment (e.g., Jboss) and I cannot use any Hibernate-specific technique (e.g., Session class). Given the fact that I'm in a JSE Environment, I need to explicitly manage the whole EntityManager's lifecycle. The Book entity is defined as follows: @Entity public class Book { @Id private String isbn; private String title; private Date publishDate; // Getters and Setters } I defined three Action classes, which are

I am doing a project in Struts2 where I need of setting a parameter in URL like user parameter in below link. I want this parameter to be passed when I click a form submit button and not any links separately. I know how to do this with <s:url> but that way I need to create a link instead of form submit. Can someone please help me with a code sample how to do this? I know there's a way to do it with HTML or Struts1 but how to do it with Struts2? If there is a way to do this in struts.xml , please explain with an example. <form action="/example/xyz.action?user=george" method="POST"> try this: <s

While migrating the application from Struts 1 to Struts 2 In some of the places, the same action class has been used for different type of views, based on the request params. For Example: if the createType is 1 means need to append one param or if the createType is 2 means need to append some more extra params, like that I need to pass dynamic params to some other action using ActionForward . struts-config.xml <action path="/CommonAction" type="com.example.CommonAction" scope="request"> <forward name="viewAction" path = "/ViewAction.do"/> </action> Action Class public class CreateAction