Tutorial Message Store Interceptor Apache Struts2

Kita lanjutkan belajar struts2 dengan judul Tutorial Message Store Interceptor Apache Struts2. Mari kita lihat apa itu message store interceptor:

An interceptor to store a ValidationAware action’s messages / errors and field errors into HTTP Session, such that it will be retrievable at a later stage. This allows the action’s message / errors and field errors to be available longer that just the particular HTTP request. sumber: apache struts

Sekarang ayo kita mulai Tutorial Message Store Interceptor Apache Struts2:

Buka folder workspace anda, jangan lupa pelajari dulu Tutorial Basic Apache Struts2. Karena kita akan melanjutkan source codenya.
Buat folder “message-store-struts2” di workspace anda
Copy file “pom.xml” dan folder “src” di folder “basic-struts2” tutorial sebelumnya.
Buka file “pom.xml”, rubah artifact-id “basic-struts2” ke “message-store-struts2”
Rubah juga tag name dan description “Belajar Message Store Interceptor Struts2”
Buka IDE eclipse
Pilih import >> existing maven project >> browse ke folder “message-store-struts2” >> finish
Project baru message-store-struts2 sudah berhasil di load

Mari kita mulai melakukan perubahan selanjutnya

Create package “com.wijaksana.belajar.struts2.action”
Tambahkan class sebagai controller/action dengan nama “HelloWorld1Action” di package “com.wijaksana.belajar.struts2.action” dan tambah extend “ActionSupport”
Tambahkan @Override method “execute”
Tambahkan script dibawah ini pada method “execute”

Java

addActionError("Hello from HelloWorld1!"); return SUCCESS;

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addActionError("Hello from HelloWorld1!");
return SUCCESS;
Tambahkan class sebagai controller/action dengan nama “HelloWorld2Action” di package “com.wijaksana.belajar.struts2.action” dan tambah extend “ActionSupport”
Tambahkan @Override method “execute”
Tambahkan script dibawah ini pada method “execute”

Java

return SUCCESS;

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return SUCCESS;

Create file xml dengan nama “message-store.xml” (src/main/resources), lalu tambahkan script dibawah ini:

<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
    <package name="message-store" namespace="/message-store" extends="default">

        <default-action-ref name="HelloWorld" />

        <action name="HelloWorld1" class="com.wijaksana.belajar.struts2.action.HelloWorld1Action">
            <interceptor-ref name="default"/>
            <interceptor-ref name="store">
                <param name="operationMode">AUTOMATIC</param>
            </interceptor-ref>

            <result type="redirectAction">HelloWorld2</result>

        </action>

        <action name="HelloWorld2" class="com.wijaksana.belajar.struts2.action.HelloWorld2Action">
            <interceptor-ref name="store">
                <param name="operationMode">AUTOMATIC</param>
            </interceptor-ref>

            <result>/WEB-INF/message-store/HelloWorld2.jsp</result>

        </action>

    </package>
</struts>

<!DOCTYPE struts PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

"http://struts.apache.org/dtds/struts-2.3.dtd">

<default-action-ref name="HelloWorld" />

<interceptor-ref name="default"/>

<interceptor-ref name="store">

<param name="operationMode">AUTOMATIC</param>

</interceptor-ref>

<result type="redirectAction">HelloWorld2</result>

</action>

<interceptor-ref name="store">

<param name="operationMode">AUTOMATIC</param>

</interceptor-ref>

<result>/WEB-INF/message-store/HelloWorld2.jsp</result>

</action>

</package>

</struts>

Buka file struts.xml (src/main/resources), replace script didalam tag <struts> dengan script dibawah ini:

<struts>
    <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
    <constant name="struts.devMode" value="true"/>

    <include file="message-store.xml"/>

    <package name="default" namespace="/" extends="struts-default">

        <interceptors>
            <interceptor-stack name="default">
                <interceptor-ref name="createSession"/>
            </interceptor-stack>
        </interceptors>

        <default-interceptor-ref name="default"/>

        <default-action-ref name="index"/>

        <action name="index">
            <result type="redirectAction">
                <param name="actionName">HelloWorld1</param>
                <param name="namespace">/message-store</param>
            </result>
        </action>

    </package>

</struts>

<interceptor-stack name="default">

<interceptor-ref name="createSession"/>

</interceptor-stack>

</interceptors>

<default-interceptor-ref name="default"/>

<default-action-ref name="index"/>

<param name="actionName">HelloWorld1</param>

<param name="namespace">/message-store</param>

</result>

</action>

</package>

</struts>

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