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sturts2+jpa+spring

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sturts2+jpa+springsturts2+jpa+springsturts2+jpa+springsturts2+jpa+springsturts2+jpa+springsturts2+jpa+spring

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Tomcat

Install Tomcat before going forward. See Tomcat's installation guide if you have any

problem installing it.

MySql

Install and congure MySql. Create a database named "quickstart" and run the script below

to create the "Person" table. Later, on applicationContext.xml, we'll use 'root' as the user

name and password for the database, remember to replace those values with the right

ones for your database.

CREATE TABLE 'quickstart'.'Person' (

'id' INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,

'rstName' VARCHAR(45) NOT NULL,

'lastName' VARCHAR(45) NOT NULL,

PRIMARY KEY('id')

)

ENGINE = InnoDB;

Get the code

Show me the code

You can just download the zipped Eclipse project , add the required dependencies to the

lib folder under the /WebContent/WEB-INF/lib folder (relative to project's root folder) and

import it into Eclipse.

The maven way

To run the project this way you will need maven installed.

1. Download the zipped project

2. Download jta jar from here .

o Note that the Download Manager may save the le to your root drive, and

it may give the le a .ZIP extension. You must rename the le to jta- 1. 1-

classes.jar.

o If a later version is available, update the version references in the next

step.

3. Install the jta jar le running:

$ mvn install:install-le -DgroupId=javax.transaction -

DartifactId=jta -Dversion=1.1 -Dpackaging=jar -Dle=c:\path\

to\jar\jta-1.1-classes.jar

4. Bear with me, we are almost there

5. cd into quickstart and run:

$ mvn jetty:run

6. Point your browser to http://localhost:8080/quickstart

7. To create an eclipse project run:

$ mvn eclipse:eclipse

or (to create web project for WTP):

mvn eclipse:eclipse -Dwtpversion=1.0

Doing it yourself

Create Eclipse project

1. Open Eclipse. Seriously, you need to open Eclipse.

2. Click File -> New -> Project. Under the "Web" folder, select "Dynamic Web Project"

and click "Next".

3. Enter the project name, "quickstart" from here on. The project will be running

inside Tomcat, so we need to create a server conguration for it.

1. Under "Target Runtime", click "New", select "Apache Tomcat 5.5" and click

next.

2. Enter Tomcat's installation directory and select an installed JRE (1.5 is

required)

4. Now you should be back to the project creation wizard, with Tomcat as your Target

Runtime. Click "Next". Select "Dynamic Web Module" and "Java" facets, and click

"Finish".

Dependencies

Your project should contain the folders "src", "build" and "WebContent". We are going to

put all the required jars under "/WebContent/WEB-INF/lib". To add les to the "lib" folder,

just copy them to ${workspace}\quickstart\WebContent\WEB-INF\lib, where ${workspace}

is the location of your Eclipse workspace folder.

In the table, the version has been removed from the JAR les, since these may change in future

milestone releases. Use whatever version is shipping with the indicated products.

JAR From License
xwork.jar Struts 2 Apache License
struts2-core.jar Struts 2
struts2-spring-plugin.jar Struts 2
ognl.jar Struts 2
freemarker.jar Struts 2
commons-logging-api.jar Struts 2
mysql-connector-java.jar MySql JDBC Driver
MySQL licensing policy
spring.jar Spring 2.0 Apache License
antlr.jar Hibernate Core LGPL
asm.jar Hibernate Core
asm-attrs.jar Hibernate Core
cglib.jar Hibernate Core
dom4j.jar Hibernate Core
jdbc2_0-stdext.jar Hibernate Core
ehcache.jar Hibernate Core
hibernate3.jar Hibernate Core
xml-apis.jar Hibernate Core
commons-collections.jar Hibernate Core
ejb3-persistence.jar Hibernate Annotations LGPL
jta.jar Hibernate Annotations
hibernate-commons-
annotations.jar
Hibernate Annotations
hibernate-annotations.jar Hibernate Annotations
hibernate-entitymanager.jar
Hibernate Entity 
Manager
LGPL
javassist.jar
Hibernate Entity 
Manager
jboss-archive-browsing.jar
Hibernate Entity 
Manager
Right click on the project and select "Refresh" (to notify Eclipse of the jars that we just 
added).
Domain
Our domain model will consist of just a simple "Person" class with a couple of elds. 

1. Create a new class named "Person" (File -> New -> Class), and enter

"quickstart.model" for the package name.

2. Add the elds "id" (int), "rstName" (String), and lastName ("String") with their

setter/getter methods.

3. Mark your class with the "@Entity" annotation, and the "id" eld with the

annotations "@Id" and "@GeneratedValue".

your class will look like:

Person.java

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 rstName;

public String getFirstName() {

return rstName;

}

public void setFirstName(String rstName) {

this.rstName = rstName;

}

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;

}

@Entity will let the provider know that this class can be persisted. @Id marks the "id" eld

as the primary key for this class. @GeneratedValue will cause the id eld to be generated

by the provider (Hibernate). Classes and elds are by default mapped to tables and

columns with the same name, see JPA's documentation for more details.

Person service.

We will now write the class that will take care of CRUD operations on "Person" objects.

1. Create a new interface (File -> New -> Interface), enter "PersonService" for the

name, and "quickstart.service" for the namespace. Set its content to:

PersonService.java

package quickstart.service;

import java.util.List;

import quickstart.model.Person;

public interface PersonService {

public List<Person> ndAll();

public void save(Person person);

public void remove(int id);

public Person nd(int id);

}

1. Create a new class (File -> New -> Class), enter "PersonServiceImpl" for the name

and "quickstart.service" for the namespace. Set its content to:

PersonServiceImpl.java

package quickstart.service;

import java.util.List;

import javax.persistence.EntityManager;

import javax.persistence.PersistenceContext;

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