Tutorial Preparable Interface Apache Struts2 – Page 2

Buka class controller/action “EditAction” di package “com.wijaksana.belajar.struts2.action” lalu modifikasi seperti dibawah, berikut full script modifikasinya
*import org.apache.logging.log4j.LogManager;
*import org.apache.logging.log4j.Logger;

public class EditAction extends ActionSupport implements Preparable {
	private static Logger log = LogManager.getLogger(EditAction.class);
	private EditService editService = new EditServiceImpl();
	private CarModelsService carModelsService = new CarModelsServiceImpl();
	private Person personBean;
	private String[] sports = { "Football", "Baseball", "Basketball" };
	private String[] genders = { "Male", "Female"};
	private List<State> states;
	private String[] carModelsAvailable;

	public void prepare() throws Exception {
        log.debug("In prepare method...");
        carModelsAvailable = carModelsService.getCarModels();
        setPersonBean(editService.getPerson());
    }
	
	public void prepareExecute() {
        log.debug("In prepareExecute method...");
    }
	
	public String execute() throws Exception {
		log.debug("In execute method...");
		editService.savePerson(getPersonBean());
		return SUCCESS;
	}

	public void prepareInput() {
        log.debug("In prepareInput method...");
    }
	
	public String input() throws Exception {
		log.debug("In input method...");
		return INPUT;
	}

	public Person getPersonBean() {
		return personBean;
	}

	public void setPersonBean(Person person) {
		personBean = person;
	}

	public List<String> getSports() {
		return Arrays.asList(sports);
	}

	public List<String> getGenders() {
		return Arrays.asList(genders);
	}

	public List<State> getStates() {
		states = new ArrayList<State>();
		states.add(new State("A", "BANTEN"));
		states.add(new State("B", "JAKARTA"));
		states.add(new State("AB", "JOGJAKARTA"));
		states.add(new State("AD", "SURAKARTA"));
		states.add(new State("AE", "MADIUN"));
		return states;
	}

	public String[] getCarModelsAvailable() {
		return carModelsAvailable;
	}
}

public class EditAction extends ActionSupport implements Preparable {

private static Logger log = LogManager.getLogger(EditAction.class);

private EditService editService = new EditServiceImpl();

private CarModelsService carModelsService = new CarModelsServiceImpl();

private Person personBean;

private String[] sports = { "Football", "Baseball", "Basketball" };

private String[] genders = { "Male", "Female"};

private List<State> states;

private String[] carModelsAvailable;

public void prepare() throws Exception {

log.debug("In prepare method...");

carModelsAvailable = carModelsService.getCarModels();

setPersonBean(editService.getPerson());

}

public void prepareExecute() {

log.debug("In prepareExecute method...");

}

public String execute() throws Exception {

log.debug("In execute method...");

editService.savePerson(getPersonBean());

return SUCCESS;

}

public void prepareInput() {

log.debug("In prepareInput method...");

}

public String input() throws Exception {

log.debug("In input method...");

return INPUT;

}

public Person getPersonBean() {

return personBean;

}

public void setPersonBean(Person person) {

personBean = person;

}

public List<String> getSports() {

return Arrays.asList(sports);

}

public List<String> getGenders() {

return Arrays.asList(genders);

}

public List<State> getStates() {

states = new ArrayList<State>();

states.add(new State("A", "BANTEN"));

states.add(new State("B", "JAKARTA"));

states.add(new State("AB", "JOGJAKARTA"));

states.add(new State("AD", "SURAKARTA"));

states.add(new State("AE", "MADIUN"));

return states;

}

public String[] getCarModelsAvailable() {

return carModelsAvailable;

}

Buka file “EditAction.properties” (src/main/resources/com/wijaksana/belajar/struts2/action) untuk menampung message resource dalam english (default) pada action edit, modifikasi/replace dengan data dibawah ini:

personBean.firstName=First name
personBean.lastName=Last name
personBean.email=Email address
personBean.phoneNumber=Phone number (999-999-9999)
personBean.sport=Favorite sport
personBean.gender=Gender
personBean.residency=State resident
personBean.over21=21 or older
personBean.carModels=Car models owned
submit=Save Changes

personBean.firstName=First name

personBean.lastName=Last name

personBean.email=Email address

personBean.phoneNumber=Phone number (999-999-9999)

personBean.sport=Favorite sport

personBean.gender=Gender

personBean.residency=State resident

personBean.over21=21 or older

personBean.carModels=Car models owned

submit=Save Changes

tambahkan file “EditAction-validation.xml” (src/main/resources/com/wijaksana/belajar/struts2/action), xml ini digunakan untuk melakukan validasi inputan. berikut full xml-nya

<!DOCTYPE validators PUBLIC
         "-//Apache Struts//XWork Validator 1.0.3//EN"
           "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">
<validators>
 <validator type="requiredstring">
 	<param name="fieldname">personBean.firstName</param>
 	<message>First name is required.</message>
 </validator>
  <validator type="requiredstring">
 	<param name="fieldname">personBean.lastName</param>
 	<message>Last name is required.</message>
 </validator>
 <validator type="requiredstring">
 	<param name="fieldname">personBean.email</param>
 	<message>Email address is required.</message>
 </validator>
 <validator type="email">
 	<param name="fieldname">personBean.email</param>
 	<message>Email address not valid.</message>
 </validator>
 <validator type="requiredstring">
 	<param name="fieldname">personBean.phoneNumber</param>
 	<message>Phone number is required.</message>
 </validator>
<validator type="regex">
	<param name="fieldname">personBean.phoneNumber</param>
	<param name="regex"><![CDATA[\d{3}-\d{3}-\d{4}]]></param>
	<message>Phone number must be entered as 999-999-9999.</message>
</validator>
<validator type="fieldexpression">
	<param name="fieldname">personBean.carModels</param>
	<param name="expression"><![CDATA[personBean.carModels.length > 0]]></param>
	<message>You must select at least one car model.</message>
</validator>
</validators>

<!DOCTYPE validators PUBLIC

"-//Apache Struts//XWork Validator 1.0.3//EN"

"http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd">

<param name="fieldname">personBean.firstName</param>

<message>First name is required.</message>

</validator>

<param name="fieldname">personBean.lastName</param>

<message>Last name is required.</message>

</validator>

<param name="fieldname">personBean.email</param>

<message>Email address is required.</message>

</validator>

<param name="fieldname">personBean.email</param>

<message>Email address not valid.</message>

</validator>

<param name="fieldname">personBean.phoneNumber</param>

<message>Phone number is required.</message>

</validator>

<param name="fieldname">personBean.phoneNumber</param>

<message>Phone number must be entered as 999-999-9999.</message>

</validator>

<param name="fieldname">personBean.carModels</param>

<message>You must select at least one car model.</message>

</validator>

</validators>

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

<struts>

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

	<package name="basic-struts2" namespace="/" extends="struts-default">
	    
	    <default-action-ref name="index"/>
	    
		<action name="index">
			<result>/index.jsp</result>
		</action>
		
		<action name="edit" class="com.wijaksana.belajar.struts2.action.EditAction" method="input">
	    	<result name="input">/edit.jsp</result>
	    </action>
	    
	    <action name="save" class="com.wijaksana.belajar.struts2.action.EditAction" method="execute">
			<result name="input">/edit.jsp</result>
	    	<result name="success">/thankyou.jsp</result>
	    </action>
	</package>

</struts>

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

<result>/index.jsp</result>

</action>

</action>

<result name="success">/thankyou.jsp</result>

</action>

</package>

</struts>

Buka file “edit.jsp” (src/main/webapp), replace dengan script dibawah ini:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<s:head />
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Struts 2 Form Tags - Edit Person</title>
</head>
<body>
<h1>Update Information</h1>

<p>Use the form below to edit your information.</p>

<s:form action="save" method="post">
<s:textfield key="personBean.firstName" /> 
<s:textfield key="personBean.lastName" /> 
<s:textfield key="personBean.email" />
<s:textfield key="personBean.phoneNumber" />
<s:select key="personBean.sport" list="sports" />
<s:radio key="personBean.gender" list="genders" />
<s:select key="personBean.residency" list="states" listKey="stateAbbr" listValue="stateName" />
<s:checkbox key="personBean.over21" />
<s:checkboxlist key="personBean.carModels" list="carModelsAvailable" />
<s:submit key="submit" />
</s:form>

</body>
</html>

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<s:head />

<title>Struts 2 Form Tags - Edit Person</title>

</head>

<body>

<h1>Update Information</h1>

<p>Use the form below to edit your information.</p>

<s:form action="save" method="post">

<s:textfield key="personBean.firstName" />

<s:textfield key="personBean.lastName" />

<s:textfield key="personBean.email" />

<s:textfield key="personBean.phoneNumber" />

<s:select key="personBean.sport" list="sports" />

<s:radio key="personBean.gender" list="genders" />

<s:select key="personBean.residency" list="states" listKey="stateAbbr" listValue="stateName" />

<s:checkbox key="personBean.over21" />

<s:checkboxlist key="personBean.carModels" list="carModelsAvailable" />

<s:submit key="submit" />

</s:form>

</body>

</html>

Selesai, bisa kita test sekarang

Klik kanan project name >> Run As >> Maven Build… >> pada isian goals ketik “jetty:run” >> klik RUN

Buka browser http://localhost:8080

Selamat mencoba,

salam berbagi,
wijaksana

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