struts2 基礎

1. action extends ActionSupport abstract class, because it already provide some default operation(input, createErrorMessage).
2. property is set by reflect to action, and pass to jsp(jsp is filled with these properties, jsp is a servlet, what it returned to user is HTML file)
3. static validate happened in action method(override ActionSupport method), dynamic validation happened in action layer.
4. change dynamic property file value in this way : thankyou=Thank you for registerling %{personBean.firstName}, Resource file can be deployed in action layer, package layer and global layer
5. exception can be configured in bellow way:  <global-exception-mappings>
    <exception-mapping exception="org.apache.struts.register.exceptions.SecurityBreachException" result="securityerror" />
     <exception-mapping exception="java.lang.Exception" result="error" />
      </global-exception-mappings>
    
     <global-results>
           <result name="securityerror">/securityerror.jsp</result>
      <result name="error">/error.jsp</result>
      </global-results>
6. Wildcard Method Selection: flexible but not useful(<action name="*Person" class="org.apache.struts.tutorials.wildcardmethod.action.PersonAction" method="{1}">)
7. integrate spring & struts 2 way: use spring plugin, main point is who to maintain action creation(spring || action), better choice is spring, you can enjoy great function of spring.
8. Add Convention Plugin to so that you can use annotation
9. intercepter can be configured in action level and package level.

posted on 2011-03-29 12:07 Sheldon Sun 閱讀(246) 評論(0)  編輯  收藏