...
your class will look like:
Code Block |
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| java |
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| java |
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title | Person.java | java |
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package quickstart.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
@Entity
public class Person {
@Id
@GeneratedValue
private Integer id;
private String lastName;
private String firstName;
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}
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...
- Create a new interface (File -> New -> Interface), enter "PersonService" for the name, and "quickstart.service" for the namespace. Set its content to:
Code Block |
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| java |
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| java |
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title | PersonService.java | java |
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package quickstart.service;
import java.util.List;
import quickstart.model.Person;
public interface PersonService {
public List<Person> findAll();
public void save(Person person);
public void remove(int id);
public Person find(int id);
}
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- Create a new class (File -> New -> Class), enter "PersonServiceImpl" for the name and "quickstart.service" for the namespace. Set its content to:
Code Block |
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| java |
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| java |
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title | PersonServiceImpl.javajava |
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|
package quickstart.service;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import org.springframework.transaction.annotation.Transactional;
import quickstart.model.Person;
@Transactional
public class PersonServiceImpl implements PersonService {
private EntityManager em;
@PersistenceContext
public void setEntityManager(EntityManager em) {
this.em = em;
}
@SuppressWarnings("unchecked")
public List<Person> findAll() {
Query query = getEntityManager().createQuery("select p FROM Person p");
return query.getResultList();
}
public void save(Person person) {
if (person.getId() == null) {
// new
em.persist(person);
} else {
// update
em.merge(person);
}
}
public void remove(int id) {
Person person = find(id);
if (person != null) {
em.remove(person);
}
}
private EntityManager getEntityManager() {
return em;
}
public Person find(int id) {
return em.find(Person.class, id);
}
}
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...
- Create a folder named "META-INF" under the "src" folder.
- Create a file named "persistence.xml" under the "META-INF" folder and set its content to:
Code Block |
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| xml |
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| xml |
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title | persistence.xmlxml |
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<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="punit">
</persistence-unit>
</persistence>
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...
- Update the content of web.xml under /WebContent/WEB-INF/web.xml to:
Code Block |
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<?xml version="1.0" encoding="UTF-8"?>
<web-app id="person" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>person</display-name>
<!-- Include this if you are using Hibernate -->
<filter>
<filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
<filter-class>
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>Spring OpenEntityManagerInViewFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
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...
- Create a file named "applicationContext.xml" under /WebContent/WEB-INF, and set its content to:
Code Block |
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| xml |
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| xml |
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title | applicationContext.xml | xml |
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|
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
<bean
class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<bean id="personService" class="quickstart.service.PersonServiceImpl" />
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter">
<bean
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="database" value="MYSQL" />
<property name="showSql" value="true" />
</bean>
</property>
</bean>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/quickstart" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<bean id="transactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="personAction" scope="prototype"
class="quickstart.action.PersonAction">
<constructor-arg ref="personService" />
</bean>
</beans>
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...
- Open the new class dialog (File -> New -> Class) and enter "PersonAction" for the classname, and "quickstart.action" for the namespace. Set its content to:
Code Block |
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| java |
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| java |
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title | PersonAction.java | java |
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package quickstart.action;
import java.util.List;
import quickstart.model.Person;
import quickstart.service.PersonService;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.Preparable;
public class PersonAction implements Preparable {
private PersonService service;
private List<Person> persons;
private Person person;
private Integer id;
public PersonAction(PersonService service) {
this.service = service;
}
public String execute() {
this.persons = service.findAll();
return Action.SUCCESS;
}
public String save() {
this.service.save(person);
this.person = new Person();
return execute();
}
public String remove() {
service.remove(id);
return execute();
}
public List<Person> getPersons() {
return persons;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public void prepare() throws Exception {
if (id != null)
person = service.find(id);
}
public Person getPerson() {
return person;
}
public void setPerson(Person person) {
this.person = person;
}
}
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...
- Create a new file named "struts.xml" under the "src" folder. And set its content to:
Code Block |
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|
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.objectFactory" value="spring" />
<constant name="struts.devMode" value="true" />
<package name="person" extends="struts-default">
<action name="list" method="execute" class="personAction">
<result>pages/list.jsp</result>
<result name="input">pages/list.jsp</result>
</action>
<action name="remove" class="personAction" method="remove">
<result>pages/list.jsp</result>
<result name="input">pages/list.jsp</result>
</action>
<action name="save" class="personAction" method="save">
<result>pages/list.jsp</result>
<result name="input">pages/list.jsp</result>
</action>
</package>
</struts>
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...
- Create a new file named "list.jsp" under /WebContent/pages/ and set its content to:
Code Block |
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| html |
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| html |
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title | list.jsphtml |
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<%@ taglib prefix="s" uri="/struts-tags"%>
<p>Persons</p>
<s:if test="persons.size > 0">
<table>
<s:iterator value="persons">
<tr id="row_<s:property value="id"/>">
<td>
<s:property value="firstName" />
</td>
<td>
<s:property value="lastName" />
</td>
<td>
<s:url id="removeUrl" action="remove">
<s:param name="id" value="id" />
</s:url>
<s:a href="%{removeUrl}" theme="ajax" targets="persons">Remove</s:a>
<s:a id="a_%{id}" theme="ajax" notifyTopics="/edit">Edit</s:a>
</td>
</tr>
</s:iterator>
</table>
</s:if>
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...
- Create a new file named "index.jsp" under /WebContent and set its content to:
Code Block |
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| html |
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| html |
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title | index.jsphtml |
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|
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<s:head theme="ajax" debug="true"/>
<script type="text/javascript">
dojo.event.topic.subscribe("/save", function(data, type, request) {
if(type == "load") {
dojo.byId("id").value = "";
dojo.byId("firstName").value = "";
dojo.byId("lastName").value = "";
}
});
dojo.event.topic.subscribe("/edit", function(data, type, request) {
if(type == "before") {
var id = data.split("_")[1];
var tr = dojo.byId("row_"+id);
var tds = tr.getElementsByTagName("td");
dojo.byId("id").value = id;
dojo.byId("firstName").value = dojo.string.trim(dojo.dom.textContent(tds[0]));
dojo.byId("lastName").value = dojo.string.trim(dojo.dom.textContent(tds[1]));
}
});
</script>
</head>
<body>
<s:url action="list" id="descrsUrl"/>
<div style="width: 300px;border-style: solid">
<div style="text-align: right;">
<s:a theme="ajax" notifyTopics="/refresh">Refresh</s:a>
</div>
<s:div id="persons" theme="ajax" href="%{descrsUrl}" loadingText="Loading..." listenTopics="/refresh"/>
</div>
<br/>
<div style="width: 300px;border-style: solid">
<p>Person Data</p>
<s:form action="save" validate="true">
<s:textfield id="id" name="person.id" cssStyle="display:none"/>
<s:textfield id="firstName" label="First Name" name="person.firstName"/>
<s:textfield id="lastName" label="Last Name" name="person.lastName"/>
<s:submit theme="ajax" targets="persons" notifyTopics="/save"/>
</s:form>
</div>
</body>
</html>
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...