Spring MVC +AJAX +Jersey with Database Integration

Hello Friends today i am going to demonstrate you how you can integrate spring with restful jersey web services.well you can manually hit url inorder to make url restul,here i have used ajax to remove complexity & calling web service without manually hitting url.

you need to have spring jar as well as jersey jar to make this example working. if you are making ajax calls than you need to have jquery javascript into your classspath.


Project Structure will look like given below:

detail code is as given below:

Model Class:
package org.bean;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="student")

public class Student
{
    @Id
    @Column(name="id")
    public int id;
    @Column(name="name")
    public String name;
   
    public Student(){ }
    public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
} 
}

DAO LAYER:

package org.dao;

import java.util.List;

import org.hibernate.Query;
import org.bean.Student;
import org.springframework.orm.hibernate3.HibernateTemplate;

public class StudentDAO
{
   
    HibernateTemplate template;
    StudentDAO(HibernateTemplate template){
        this.template = template;
    }

    public List<Student> getStudentinfo(String param, StudentDAO dao)
    {
        String query = "from student where name = ?";
        return template.find(query,param);   
    }
   
    public void insert(Student student)
    {
        template.save(student);
    }

    public void update(Student student,String name)
    {
       
       
        Query query =template.getSessionFactory().openSession().createSQLQuery("update student set name=?  where  id='"+student.getId()+"'");

            query.setString(0, student.getName());
       
            int i =query.executeUpdate();
            System.out.println("Updated Succesfully..."+i);
    }

    public void delete(Student student,int studentid)
    {
   
    Query query =template.getSessionFactory().openSession().createSQLQuery("delete student where  id='"+student.getId()+"'");

        int i =query.executeUpdate();
       
       
    }

}

Controller: 
package org.controller;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.bean.*;
import org.dao.*;

@Controller
@Path("/Student")
public class StudentController
{

      @GET
      @Produces({ MediaType.TEXT_PLAIN})
      @RequestMapping(value="{id}/{name}")
      public Response InsertStudent(@QueryParam("studentid") int studentid,@QueryParam("studentname") String studentname,@Context HttpServletRequest request)
      {
          WebApplicationContext context  = WebApplicationContextUtils.getWebApplicationContext(request.getServletContext());
        
         StudentDAO dao = (StudentDAO) context.getBean("StudentDAO");
   
        
         System.out.println("ID:->"+studentid);
         System.out.println("NAME:->"+studentname);
         Student student = new Student();
         student.setId(studentid);
         student.setName(studentname);
         dao.insert(student);
        
        
        
         return Response.ok("Student id: "+studentid+"Student name :"+studentname).build();
      
        }

      @Path("/updatestudent")
      @GET
      @Produces({ MediaType.TEXT_PLAIN})
      @RequestMapping(value="{id}/{name}")
      public Response UpdateStudent(@QueryParam("studentid") int studentid,@QueryParam("studentname") String studentname,@Context HttpServletRequest request)
      {
          WebApplicationContext context  = WebApplicationContextUtils.getWebApplicationContext(request.getServletContext());
        
         StudentDAO dao = (StudentDAO) context.getBean("StudentDAO");
   
        
         System.out.println("in update");

         Student student = new Student();
         student.setId(studentid);
         student.setName(studentname);
        
         dao.update(student,student.getName());        
        
         return Response.ok("Student id: "+studentid+"Updated Successfully").build();
      
        }
     

      @Path("/deletestudent")
      @GET
      @Produces({ MediaType.TEXT_PLAIN})
      @RequestMapping(value="{id}/{name}")
      public Response DeleteStudent(@QueryParam("studentid") int studentid,@QueryParam("studentname") String studentname,@Context HttpServletRequest request)
      {
          WebApplicationContext context  = WebApplicationContextUtils.getWebApplicationContext(request.getServletContext());
        
         StudentDAO dao = (StudentDAO) context.getBean("StudentDAO");
   
         System.out.println("in delete");
        
         Student student = new Student();
         student.setId(studentid);
         student.setName(studentname);

          dao.delete(student,studentid);        
         return Response.ok("Student id: "+studentid+"Deleted Successfully...").build();
      
        }    
}


Here's the web.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>SIMS</display-name>
  <welcome-file-list>
    <welcome-file>test.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>Jersey REST Service</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <init-param>
      <param-name>com.sun.jersey.config.property.packages</param-name>
      <param-value>org.controller</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Jersey REST Service</servlet-name>
    <url-pattern>/rest/*</url-pattern>
  </servlet-mapping>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>WEB-INF/context-conf.xml</param-value>
  </context-param>
  <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>*.html</url-pattern>
  </servlet-mapping>
</web-app>


spring-servlet.xml : should be in /WEB-INF

<?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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd
     http://www.springframework.org/schema/mvc
     http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="org.controller" />

    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
    <property name="mediaTypes">
      <map>
          <entry key="html" value="text/html"></entry>
          <entry key="json" value="application/json"></entry>
          <entry key="xml"  value="application/xml"></entry>
      </map>
    </property>
     <property name="viewResolvers">
        <list>
          <bean class="org.springframework.web.servlet.view.UrlBasedViewResolver">
            <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
            <property name="prefix" value="/WEB-INF/jsp/"></property>
            <property name="suffix" value=".jsp"></property>
          </bean>
        </list>
    </property>
</bean>

</beans>

context-config.xml :Context Configuration file
<?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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd
     http://www.springframework.org/schema/mvc
     http://www.springframework.org/schema/mvc/spring-mvc.xsd">


    <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
   
        <property name="url" value="jdbc:mysql://localhost:3306/studentdb" />
        <property name="username" value="root" />
        <property name="password" value="admin!@#" />
    </bean>
    <bean id="mySessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />
        <property name="annotatedClasses">
            <list>
                <value>org.bean.Student</value>
              
            </list>
        </property>

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">none</prop>
            </props>
        </property>
    </bean>

    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <constructor-arg ref="mySessionFactory" />
    </bean>   
    <bean id="StudentDAO" class="org.dao.StudentDAO">
        <constructor-arg ref="hibernateTemplate" />
    </bean>

</beans>


test.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>CRUD USING SPRING + JERSEY</title>>
<script src="script/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript" src="script/jquery-ui.custom.min.js"></script>

<script>




$(document).ready(function()
 {
    alert("inside");
     $('#updatedata').click(function()
     {
         
         $.ajax({
              
                url: "rest/Student/updatestudent?"+$('#studentdetailform').serialize(),
                dataType:'json',
                type:'get',
                 
                
            });            
         
        });
   
     $('#savedata').click(function()
             {
                  alert("inside delete");
                 $.ajax({
                      
                        url: "rest/Student?"+$('#studentdetailform').serialize(),
                        dataType:'json',
                        type:'get',
                         
                         
                    });            
                 
                });
   
     $('#deletedata').click(function()
             {
                  alert("inside delete");
                 $.ajax({
                      
                        url: "rest/Student/deletestudent?"+$('#studentdetailform').serialize(),
                        dataType:'json',
                        type:'get',
                         
                        success: function(data)
                        { 
                          
                        } 
                    });            
                 
                });
   
});


</script>


</head>
<body>
   
    <form id="studentdetailform" method="get">
   
        <table border="2">
            <tr>
                <td>ID:<input type="text" id="studentid" name="studentid"></td>
                </tr>
                <tr>
                <td>NAME:<input type="text" id="studentname" name="studentname"></td>
                </tr>
                <tr>
                <td><input type="button" value="update" id="updatedata"  name="updatedata"></td>
                <td><input type="button" value="save" name="savedata" id="savedata"></td>
                <td><input type="button" value="delete" name="deletedata" id="deletedata"></td>
                </tr>
        </table>
    </form>

</body>

</html>

here there is no need to have output screenshots .so i am simply ignoring it.if you want more explanation than ping me.

thanks for reading this article.i hope you get something from it
for any query ping me on pathak.nisarg@yahoo.com
Regards

Duplicate form submission Prevention using Spring MVC

Hello Friends  hope you all are doing well.today i am going to demonstrate how to prevent duplicate form submission using spring mvc.if url returns successview & if you refresh success page again and again than it might lead to multiple callback to database if method is interacting with url.

if you redirect to another page than request parameter will not be available to you.spring mvc will resolve both mentioned issues using Post Redirect Get pattern.


Spring mvc provides flash attributes in order to  resolve issue of duplicate form submission. you can put attributes into flashmap that you want to get into success view page & get that values into success page.

Project structure is as follows:

limitation of flash attribute is it is pertaining to single request only.for each single request ,flash attributes are available.i am posting code as given below : 


Model

package org.demo.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="student")
public class Student
{
   
    @Id @Column(name="id")
    private String studentid;
    @Column
    private String name;
   

   
    public Student(){}
    public String getStudentid() {
        return studentid;
    }


    public void setStudentid(String studentid) {
        this.studentid = studentid;
    }


    public String getName() {
        return name;
    }


    public void setName(String name) {
        this.name = name;
    }
   

}


DAO:

package org.dao;


import java.util.List;

import org.demo.model.Student;
import org.springframework.orm.hibernate3.HibernateTemplate;
public class StudentDAO
{
    private HibernateTemplate template;

    public HibernateTemplate getTemplate() {
        return template;
    }

    public void setTemplate(HibernateTemplate template) {
        this.template = template;
    }

    public StudentDAO(HibernateTemplate template) {
        this.template = template;
    }

    public void insert(Student student)
    {
      template.save(student);    
    }
    public List<Student> getStudents()
    {
        return template.find("from student");
            
    }   

}


Controller

package org.demo.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.dao.StudentDAO;
import org.demo.model.Student;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

@Controller

public class StudentController
{
   
    @RequestMapping(value="/showform", method=RequestMethod.GET)
    public String showForm(@ModelAttribute("student") Student stud) {
        return "add_student";
    }
        
        @RequestMapping(value="/add_student", method=RequestMethod.POST)
        public String addStudent(@ModelAttribute("student1") Student student1,
                final RedirectAttributes redirectAttributes,HttpServletRequest request,HttpServletResponse response)
        {
           
        WebApplicationContext context=WebApplicationContextUtils.getRequiredWebApplicationContext(request.getServletContext());
       
       
        StudentDAO studentdao =(StudentDAO) context.getBean("studentDAO");
        String  id=request.getParameter("txtid");
        String name=request.getParameter("txtname");
            
       
        Student student= new Student();
        student.setStudentid(id);
        student.setName(name);
       
       
           studentdao.insert(student);
   
            redirectAttributes.addFlashAttribute("student1", student);
            redirectAttributes.addFlashAttribute("message","Added successfully.");
             
           return "redirect:show_student.html";   
           
        }  
        @RequestMapping(value="/show_student", method=RequestMethod.GET)
        public String showStudent(@ModelAttribute("student1") Student student) {
          
            return "show_student";
        }
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>PostRedirectGetUsingSpringMVC</display-name>
 <welcome-file-list>
        <welcome-file>add_student.jsp</welcome-file>
       
    </welcome-file-list>
   <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
   
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>WEB-INF/context-conf.xml</param-value>
    </context-param>
      
  <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
</web-app>

dispatcher-servlet.xml:->  place it in WebContent/WEB-INF/

<?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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc  http://www.springframework.org/schema/mvc/spring-mvc.xsd">
  
  
   <context:component-scan base-package="org.demo.controller" />
    
    <mvc:annotation-driven/>
   
    <bean id="viewResolver"
              class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
              <property name="prefix">
                  <value>/</value>
               </property>
              <property name="suffix">
                 <value>.jsp</value>
              </property>
        </bean>
       
    </beans>


context-conf.xml: place it in WebContent/WEB-INF/

<?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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd
     http://www.springframework.org/schema/mvc
     http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    
     <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/studentdb" />
        <property name="username" value="root" />
        <property name="password" value="admin!@#"/>
</bean>

    <bean id="mySessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />

        <property name="annotatedClasses">
           
                    <value>org.demo.model.Student</value>   
           
        </property>

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">none</prop>
            </props>
        </property>
    </bean>
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <constructor-arg ref="mySessionFactory" />
    </bean>
   
    <bean id="studentDAO" class="org.dao.StudentDAO">
        <constructor-arg ref="hibernateTemplate" />
    </bean>  
    
    
     </beans>



showform.jsp: -> homepage
<%
response.sendRedirect("add_student.jsp");

%>





add_student.jsp



<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Post->Redirect->get example </title>
</head>
<body>
   
    <form action="add_student.html" method="POST">
   
        <table>
            <tr>
                <td>id:<input type="text" id="txtid" name="txtid"></td>
            </tr>
           
            <tr>
                <td>Name:<input type="text" id="txtname" name="txtname"></td>
            </tr>
           
            <tr>
                <td><input type="submit"  value="submit"></td>
            </tr>
           
        </table>
    </form>
</body>
</html>





show_student.jsp

<html>
<body>
   
   <h2>${student1.name}added successfully..</h2>
</body>
</html>

the output will look like given below :

(1) simple form with id ,name

(2) after posting data to server  ,data will be stored in flash map,success view is returned & data will be stored into database.

(3) if you resubmit the form again when success view appears,it will simply remove flash attribute from flash map & just display added successfully. this is how you can prevent duplicate form submission.


thanks for reading. 
for any query ping me on pathak.nisarg@yahoo.com.
Enjoy Coding.

calling procedure using hibernate

Hello Friends.hope you all are fine .today i am going to demonstrate how you can call procedure using hibernate native query .well that's all about what this post all about .no much description.detail code is as given below :


procedure that i have written into mysql is as given below.procudure takes one parameter and retruns related student data :

DELIMITER $$

DROP PROCEDURE IF EXISTS `getStudent` $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `getStudent`(id VARCHAR(20))
BEGIN

SELECT * FROM student WHERE id = id;
END $$

DELIMITER ;



package org.dao;

import java.util.List;

import org.entity.Student;
import org.hibernate.Query;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.orm.hibernate3.HibernateTemplate;


public class ProcedureCall
{
   
public HibernateTemplate hibernatetemplate;
   
    public HibernateTemplate getHibernatetemplate() {
        return hibernatetemplate;
    }

    public void setHibernatetemplate(HibernateTemplate hibernatetemplate) {
        this.hibernatetemplate = hibernatetemplate;
    }

    public ProcedureCall(HibernateTemplate hibernatetemplate)
    {
    this.hibernatetemplate=hibernatetemplate;
    }
   
    public List<Student> getStudentData()
    {
       
       
        Query query = getHibernatetemplate().getSessionFactory().openSession().createSQLQuery("CALL studentdb.getStudent(:id)")
                .addEntity(Student.class)
                .setParameter("id", "1");
           
            List<Student> result = query.list();
            for(int i=0; i<result.size(); i++){
                Student student = (Student)result.get(i);
                System.out.println(student.getId());
               
            }
        return result;
    }
   
    public static void main(String[] args) {
       
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("context-conf.xml");
       
       
            ProcedureCall call  =(ProcedureCall) context.getBean("ProcedureCall");
           
            List<Student> result;
           
            result= call.getStudentData();
           
            for(int i=0;i<result.size();i++)
            {
               
                System.out.println("ID:"+result.get(i).getId());
                System.out.println("NAME:"+result.get(i).getName());
            }
           
    }

}

Configuration file

<?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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context.xsd
     http://www.springframework.org/schema/mvc   
     http://www.springframework.org/schema/mvc/spring-mvc.xsd">



<bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/studentdb" />
        <property name="username" value="root" />
        <property name="password" value="admin!@#"/>
</bean>

    <bean id="mySessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />

        <property name="annotatedClasses" value="org.entity.Student">
           </property>

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">none</prop>
            </props>
        </property>
    </bean>
   
    <bean id="ProcedureCall" class="org.dao.ProcedureCall">
        <constructor-arg ref="hibernateTemplate" />
    </bean>
   
   
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <constructor-arg ref="mySessionFactory" />
    </bean>
</beans>

i hope you will get my point.
for query ping me on pathak.nisarg@yahoo.com
thanks for reading

Spring +Apache Velocity +AJAX

 Spring  + Velocity Integration with ajax

Hello Friends ,hope you all are doing well.today i am going to demonstrate how apache velocity is integrated with Spring framework.first of all you have to download apache velocity from this link: http://velocity.apache.org/download.cgi 

Apache velocity is view template that defines view template language which will be used to referance java objects. 

another thing that you need to add is velocity UI from :http://veloedit.sourceforge.net/
in order to enable velocity syntax in eclipse.all you need to do is install new software and paste the link that i have mentioned above.

in order to render view of velocity ,you need to have following confugration :

      <!-- velocity configuration-->
     
    <bean id="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
      <property name="resourceLoaderPath" value="/WEB-INF/vm/"/>
    </bean>
    
    <!--   velocity view resolver    -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.velocity.VelocityViewResolver">
      <property name="cache" value="true"/>
      <property name="prefix" value=""/>
      <property name="suffix" value=".vm"/>
    </bean>


in order to render .vm page you need to add above configuration into context file.
 Project structure will look like as given below:

the detail code is as given below:
Model class:
package org.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "student")
public class Student
{

    @Id
    @Column(name = "studentid")
    private String id;
    @Column
    private String name;
    public Student() {
    }
    public Student(String id, String name) {
        this.id = id;
        this.name = name;
    }
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

}
Controller:
package org.controller;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.dao.StudentDAO;
import org.model.Student;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import org.springframework.web.servlet.ModelAndView;
import net.sf.json.JSONArray;
@Controller
public class StudentController {

    private static List<Student> userList = new ArrayList<Student>();

    static {
        userList.add(new Student("Cust101", "Nisarg"));
        userList.add(new Student("Cust102", "Kinjal"));
        userList.add(new Student("Cust103", "Mayur"));
        userList.add(new Student("Cust104", "Parth"));
        userList.add(new Student("Cust105", "Ankit"));
    }

    @RequestMapping(value = "/index", method = RequestMethod.GET)
    public String index(@ModelAttribute("model") ModelMap model) {

        model.addAttribute("userList", userList);

        return "index";
    }

    @RequestMapping(value = "/testing", method = RequestMethod.POST)
    public @ResponseBody void testing(@ModelAttribute("user") Student user,
            HttpServletRequest request, HttpServletResponse response) {

         WebApplicationContext context = WebApplicationContextUtils
                .getWebApplicationContext(request.getServletContext());

        StudentDAO studentdao = context.getBean("StudentDAO", StudentDAO.class);

        Student user1 = new Student();
        String id=request.getParameter("id");
        String name=request.getParameter("name");
       
         user1.setId(id);
         user1.setName(name);
         studentdao.save(user1);
          userList.add(user1);
          Map<String, List<Student>> model = new HashMap<String, List<Student>>();
          model.put("users", userList);

            JSONArray jsonarray = JSONArray.fromObject(userList);
           response.getWriter().println(jsonarray);
    }
}
  
DAO:
package org.dao;
import org.model.Student;
import org.springframework.orm.hibernate3.HibernateTemplate;

public class StudentDAO
{   
    private HibernateTemplate template;   
    public HibernateTemplate getTemplate() {
        return template;
    }
   public void setTemplate(HibernateTemplate template)
    {
        this.template = template;
    }
    public StudentDAO(HibernateTemplate template)
    {      
        this.template=template;  
    }
    public void save(Student student)
    {
        template.save(student);
    }
   
}
web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        id="WebApp_ID" version="2.5">
    
  <display-name>Freemarker_SpringMVC_example</display-name> 
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
   <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <listener>
        <listener-class>
            org.springframework.web.context.request.RequestContextListener
        </listener-class>
    </listener>
 
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/context-config.xml</param-value>
    </context-param>
 
  <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
</web-app>

spring-servlet.xml

<?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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

     <context:component-scan
        base-package="org.controller" />  

      <!-- velocity configuration-->     
    <bean id="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
      <property name="resourceLoaderPath" value="/WEB-INF/vm/"/>
    </bean>    
    <!--   velocity view resolver    -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.velocity.VelocityViewResolver">
      <property name="cache" value="true"/>
      <property name="prefix" value=""/>
      <property name="suffix" value=".vm"/>
    </bean>       
</beans>

context-config.xml
<?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:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.1.xsd">
   
<context:component-scan base-package="org.controller"></context:component-scan>

<!-- Hibernate Configuration -->
 <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" >
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/demo" />
        <property name="username" value="root" />
        <property name="password" value="admin!@#"/>
</bean>

<bean id="mySessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />

        <property name="annotatedClasses">
            <list> <value>org.model.Student</value></list>                                
</property>

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">none</prop>
            </props>
        </property>
    </bean>
   
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <constructor-arg ref="mySessionFactory" />
    </bean>

<!-- list of bean definations  -->
<bean id="StudentDAO"  class="org.dao.StudentDAO">
   <constructor-arg ref="hibernateTemplate" />
</bean>

</beans>

index.vm
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Spring-Velocity Integration</title>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>


<script>

$(document).ready(function()
         {
           
             $('#submitdata').click(function()
            {
                 
                 $.ajax({
                        url: "testing.html",
                        dataType:'json',
                        method:'post',
                        data:{id: $('#id').val(),name:$('#name').val()},
                       
                        success: function(data)
                        {
                            $('#here_table').append(  '<table border="2">' );
                            $('#here_table').append(  '<th>ID </th>  <th>NAME </th>' );
                           
                            $.each(data, function(index, item)
                            {
                                 $('#here_table').append( '<tr><td>'  +  item.id + '</td>' + '<td>'  +  item.name + '</td></tr>' );
                               
                               
                            });
                            $('#here_table').append(  '</table>' );
                        }  
                    });          
             });
         });
</script>
</head>
<body>
  <form name="user"  method="post">
    Id: <input type="text" name="id"  id="id" /> <br/>
    Name: <input type="text" name="name" id="name" />   <br/>
    <input id="submitdata" type="button" value="Save" />
         
  </form>
<div id="here_table">
  </div>    
      
</body>
</html>
Output will look like as given below:
(1) empty form

(2) form with data ,it also show list of students into table

(3) record insertion into table

hope you will get my point
thanks for reading 
Happy Learning ...!!!!!!

Spring FreeMarker Integration

Spring FreeMarker Integration 
hello Friends today i am going to demonstrate Spring +Freemarker integration.there are many view technology available in the market. you can also use Velocity, you need to have jboss tools into eclipse.you can get jboss tools by querying eclipse marketplace..ftl is the extension of freemarker file.you need to have freemarker.jar into the classpath.
the detail code is posted below:

Project Structure is as given below:

Model Class:

package org.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="student")
public class Student
{   
    @Id
    @Column(name="studentid")
    private String id;
    @Column
    private String name;   
    public Student(){}  
   
    public Student(String id,String name)
    {
        this.id=id;
        this.name=name;
    }
    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

Controller :-StudentController.java

package org.controller;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.dao.StudentDAO;
import org.model.Student;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

@Controller
public class StudentController {

    private static List<Student> userList = new ArrayList<Student>();

    static {
        userList.add(new Student("Cust101", "Nisarg"));
        userList.add(new Student("Cust102", "Kinjal"));
        userList.add(new Student("Cust103", "Mayur"));
        userList.add(new Student("Cust104", "Parth"));
        userList.add(new Student("Cust105", "Ankit"));
    }

    @RequestMapping(value = "/index", method = RequestMethod.GET)
    public String index(@ModelAttribute("model") ModelMap model) {

        model.addAttribute("userList", userList);

        return "index";
    }

    @RequestMapping(value = "/add", method = RequestMethod.POST)
    public String add(@ModelAttribute("user") Student user,
            HttpServletRequest request, HttpServletResponse response) {

        WebApplicationContext context = WebApplicationContextUtils
                .getWebApplicationContext(request.getServletContext());

        StudentDAO studentdao = context.getBean("StudentDAO", StudentDAO.class);

        Student student = new Student();
        student.setId(user.getId());
        student.setName(user.getName());

        studentdao.save(student);

        if (null != user && null != user.getId() && null != user.getName()
                && !user.getId().isEmpty()) {

            synchronized (userList) {
                userList.add(user);
                // userList.add(student);
            }

        }

        return "redirect:index.html";
    }

}
DAO: -StudentDAO.java

package org.dao;

import org.model.Student;
import org.springframework.orm.hibernate3.HibernateTemplate;

public class StudentDAO
{
   
    private HibernateTemplate template;
   
   
    public HibernateTemplate getTemplate() {
        return template;
    }


    public void setTemplate(HibernateTemplate template)
    {
        this.template = template;
    }


    public StudentDAO(HibernateTemplate template)
    {
        this.template=template;
       
    }
   
    public void save(Student student)
    {
        template.save(student);
    }  
}

index.ftl

<html>
<head>
<title>Spring freemarker integration </title>
<body>   
 
  <form name="user" action="add.html" method="post">
    Id: <input type="text" name="id" /> <br/>
    Name: <input type="text" name="name" />   <br/>
    <input type="submit" value="Save" />
  </form>
 
  <br/>
  <table>
    <tr>
        <th>ID</th>  <th>NAME</th>
    </tr>
    <#list model["userList"] as student>
    <tr>
        <td>${student.id}</td> <td>${student.name}</td>
    </tr>
    </#list>
  </table>

</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
        id="WebApp_ID" version="2.5">
        
  <display-name>Freemarker_SpringMVC_example</display-name>
 
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
 
   <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <listener>
        <listener-class>
            org.springframework.web.context.request.RequestContextListener
        </listener-class>
    </listener>
   
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/context-config.xml</param-value>
    </context-param>
 

  <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
</web-app>

context-config.xml

<?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:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.1.xsd">

<context:component-scan base-package="org.controller"></context:component-scan>
<!-- Hibernate Configuration -->
 <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" >
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/demo" />
        <property name="username" value="root" />
        <property name="password" value="admin!@#"/>
</bean>

<bean id="mySessionFactory"     class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />
        <property name="annotatedClasses">
            <list>                       
                    <value>org.model.Student</value>                   
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">none</prop>
            </props>
        </property>
    </bean>
    <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
        <constructor-arg ref="mySessionFactory" />
    </bean> 
   
    <!-- list of bean definations  -->
<bean id="StudentDAO"  class="org.dao.StudentDAO">
   <constructor-arg ref="hibernateTemplate" />
</bean>
<beans>

spring-servlet.xml

<?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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">  

    <!-- freemarker configuration-->
    <bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
      <property name="templateLoaderPath" value="/WEB-INF/ftl/"/>
    </bean>
    
    <!--   Freemarker view resolver    -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
      <property name="cache" value="true"/>
      <property name="prefix" value=""/>
      <property name="suffix" value=".ftl"/>
    </bean>

    <context:component-scan
        base-package="org.controller" />
         
</beans>

snapshot of output is as given below:
(1) table popluated with some static data

(2) Record inserted into table as well as database

 

 

 (3) Entry of record  into the database:

 

hope you will get my point
Thanks for reading.
for any query ping me on pathak.nisarg@yahoo.com
Regards

Reverse Engineering Using Hibernate

Reverse Engineering Using Hibernate


                                         Hello Friends.today i am going to demonstrate how you can reverse engineer process of creating entities in eclipse using hibernate tools(originally JBoss tools).well you need to go through hibernate site to know about hibernate.revnge.xml ,well its not all about code .so i am putting snapshot of steps that you need to follow as per given below:


1)open hibernate perspective from from window->perspective & from then select hiebernate

(2)here i am demostrating example of sample database.
      in Hibernate Perspective, right click and select “Add Configuration…”
In “Edit Configuration” dialog box,

1. In “Project” box, click on the “Browse..” button to select your project.
2. In “Database Connection” box, click “New..” button to create your database settings.
3. In “Configuration File” box, click “Setup” button to create a new or use existing “Hibernate configuration file”, hibernate.cfg.xml

(3) List of tables is shown :

(4) Now, you are ready to generate the Hibernate mapping files and annotation codes.
 go to run->Hibernate Code Generation ,select Hibernate Code Generation Configuration

Create a new configuration, select your “console configuration”, puts your “Output directory” and checked option “Reverse engineer from JDBC Connection“.

In “Exporter” tab, select what you want to generate, Model , mapping file (hbm) , DAO, annotation code and etc.

(5) you can see using single reverse engineer file ,hibernate tools provide you easy way to get entity classes generated automatically.it reduces amount of work required to write entity classes by own.

 hibernate.reveng.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-reverse-engineering PUBLIC "-//Hibernate/Hibernate Reverse Engineering DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-reverse-engineering-3.0.dtd" >

<hibernate-reverse-engineering>
<!-- sample is the name of database and student is the entity within sample database-->
  <table-filter match-catalog="sample" match-name="student"/>
 
</hibernate-reverse-engineering>

hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory name="MySessionFactory">
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.password">admin!@#</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/sample</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
    </session-factory>
</hibernate-configuration>

the project structure will look like given below:

this is how you can apply reverse engineering process to get entity classes generated by hibernate itself


thanks for reading
for any query ping me on pathak.nisarg@yahoo.com

Regards