Products: Module 1.. Calling transaction summary on successful login

We have yet not created all Master Screens. However, i will give a sneek peek with a petite' example of how to display transaction detail of a registered user.

Let's say you have 2 tables:
1. Table "users" - to store user master data
2. Table "user_transaction" - to store transaction data

users sql:
CREATE TABLE users
(
user_id serial NOT NULL,
password character varying(10) NOT NULL,
email_id character varying(30) NOT NULL,
create_date timestamp without time zone,
CONSTRAINT users_pkey PRIMARY KEY (user_id)
)
WITH (
OIDS=FALSE
);
ALTER TABLE users
OWNER TO postgres;

user_transaction sql:

CREATE TABLE user_transaction
(
transaction_id integer NOT NULL,
user_id integer,
CONSTRAINT user_transaction_pkey PRIMARY KEY (transaction_id),
CONSTRAINT user_transaction_user_id_fkey FOREIGN KEY (user_id)
REFERENCES users (user_id) MATCH SIMPLE
ON UPDATE NO ACTION ON DELETE NO ACTION
)
WITH (
OIDS=FALSE
);
ALTER TABLE user_transaction
OWNER TO postgres;

How the relation is:

Project Structure.. JAR file are same as in http://lillbitofeverythingagain.blogspot.in/2015/07/simple-spring-login.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" version="2.5">

<servlet-name>sdnext</servlet-name>

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>

<param-name>contextConfigLocation</param-name>

<param-value>/WEB-INF/config/sdnext-servlet.xml</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>sdnext</servlet-name>

<url-pattern>*.html</url-pattern>

</servlet-mapping>

<welcome-file-list>

<welcome-file>login.html</welcome-file>

</welcome-file-list>

</web-app>

-----------------------------------

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

pageEncoding="ISO-8859-1"%>

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<html>

<body>

<h2>New User Master Data</h2>

<form:form method="POST" action="login2.html" modelAttribute="user" id="form">

<table>

</table>

</form:form>

</body>

</html>

sdnext-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:context="http://www.springframework.org/schema/context"

xmlns:tx="http://www.springframework.org/schema/tx"

xmlns:mvc="http://www.springframework.org/schema/mvc"

xsi:schemaLocation="

http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-3.2.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-3.2.xsd

http://www.springframework.org/schema/tx

http://www.springframework.org/schema/tx/spring-tx-3.2.xsd

http://www.springframework.org/schema/mvc

http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd

<context:property-placeholder location="classpath:resources/database.properties" />

<context:component-scan base-package="com.users" />

<mvc:annotation-driven/>

<mvc:resources mapping="/js/**" location="/js" />

<tx:annotation-driven transaction-manager="hibernateTransactionManager"/>

<mvc:annotation-driven>

<mvc:message-converters>

</bean>

</mvc:message-converters>

</mvc:annotation-driven>

<bean id="jspViewResolver"

class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="viewClass"

value="org.springframework.web.servlet.view.JstlView" />

</bean>

<bean id="dataSource"

class="org.springframework.jdbc.datasource.DriverManagerDataSource">

</bean>

<bean id="sessionFactory"

class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">

<list>

<value>com.users.model.User</value>

</list>

</property>

<props>

<prop key="hibernate.dialect">${hibernate.dialect}</prop>

<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>

<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>

</props>

</property>

</bean>

<bean id="hibernateTransactionManager"

class="org.springframework.orm.hibernate3.HibernateTransactionManager">

</bean>

</property>

<list>

</list>

</property>

</bean>

</beans>

UserController.java

--------------------------------------------

package com.users.controller;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.validation.BindingResult;

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.servlet.ModelAndView;

import java.util.List;

import com.users.bean.TransactionDetails;

import com.users.bean.UserBean;

import com.users.model.User;

import com.users.service.UserService;

@Controller

public class UserController {

@Autowired

private UserService userService;

@RequestMapping(value = "/save", method = RequestMethod.POST)

public ModelAndView saveUser( @ModelAttribute("user") UserBean u1, BindingResult result) {

User u = prepareModel(u1);

System.out.println("1");

userService.addUser(u);

// mail m = new mail(u1.getEmail_id());

System.out.println("2");

return new ModelAndView("save");

}

@RequestMapping(value = "/login2", method = RequestMethod.POST)

public ModelAndView login( @ModelAttribute("user") UserBean u1, BindingResult result) {

System.out.println("In controller");

Map<String, Object> model = new HashMap<String, Object>();

try

{

System.out.println("a");

User u = userService.validateUser(u1.getEmail_id(), u1.getPassword());

if(u.getEmail_id().equalsIgnoreCase("null"))

return new ModelAndView("notsave");

}

catch(Exception e)

{

}

System.out.println("trans1");

List t2 = userService.listTransaction(u1.getEmail_id());

System.out.println("XoXo");

Iterator it=t2.iterator();

List<TransactionDetails> lst = new ArrayList<TransactionDetails>();

while(it.hasNext())

{

TransactionDetails d1 = new TransactionDetails();

Object rows[] = (Object[])it.next();

System.out.println("kaula");

String s = rows[0].toString();

String t = rows[1].toString();

d1.setTransaction_id(s);

d1.setUser_id(t);

System.out.println("umpur");

lst.add(d1);

System.out.println(rows[0]+ " -- " +rows[1]);

}

Iterator io=lst.iterator();

while(io.hasNext())

{

System.out.println(io.next());

}

model.put("t1", lst);

System.out.println("inbetween");

return new ModelAndView("save", model);

}

@RequestMapping(value = "/login", method = RequestMethod.GET)

public ModelAndView welcome(@ModelAttribute("user") UserBean u1, BindingResult result) {

return new ModelAndView("login");

}

private User prepareModel(UserBean uBean){

User u1 = new User();

u1.setPassword(uBean.getPassword());

u1.setEmail_id(uBean.getEmail_id());

u1.setUser_id(uBean.getUser_id());

uBean.setUser_id(null);

return u1;

}

User.java

-----------------------------

package com.users.model;

import java.io.Serializable;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.Table;

@Entity

@Table(name="users")

public class User implements Serializable{

private static final long serialVersionUID = -723583058586873479L;

@Id

@GeneratedValue(strategy=GenerationType.AUTO)

@Column(name = "user_id")

private Integer user_id;

public static long getSerialversionuid() {

return serialVersionUID;

}

@Column(name = "email_id")

private String email_id;

@Column(name="password")

private String password;

public Integer getUser_id() {

return user_id;

}

public void setUser_id(Integer user_id) {

this.user_id = user_id;

}

public String getEmail_id() {

return email_id;

}

public void setEmail_id(String email_id) {

this.email_id = email_id;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

UserBean.java

----------------------------------------------

package com.users.bean;

import java.util.Date;

import com.ibm.icu.util.Calendar;

public class UserBean {

private Integer user_id;

private String email_id;

private String password;

public Integer getUser_id() {

return user_id;

}

public void setUser_id(Integer user_id) {

this.user_id = user_id;

}

public String getEmail_id() {

return email_id;

}

public void setEmail_id(String email_id) {

this.email_id = email_id;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

TransactionDetails.java

---------------------------------------------------

package com.users.bean;

import java.io.Serializable;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Table;

@Entity

@Table(name="user_transaction")

public class TransactionDetails implements Serializable{

String user_id, transaction_id;

@Column(name = "user_id")

public String getUser_id() {

return user_id;

}

public void setUser_id(String user_id) {

this.user_id = user_id;

}

@Column(name = "transaction_id")

public String getTransaction_id() {

return transaction_id;

}

public void setTransaction_id(String transaction_id) {

this.transaction_id = transaction_id;

}

UserService.java

-----------------------------------------

package com.users.service;

import java.util.List;

import com.users.bean.TransactionDetails;

import com.users.model.User;

public interface UserService {

public void addUser(User user);

public User validateUser(String uid, String password);

public List<TransactionDetails> listTransaction(String email_id);

}

UserServiceImpl.java

----------------------------------------------------------

package com.users.service;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Propagation;

import org.springframework.transaction.annotation.Transactional;

import com.users.bean.TransactionDetails;

import com.users.dao.UserDao;

import com.users.model.User;

@Service("userService")

@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)

public class UserServiceImpl implements UserService {

@Autowired

private UserDao uDao;

@Transactional(propagation = Propagation.REQUIRED, readOnly = false)

public void addUser(User user) {

System.out.println("3");

uDao.addUser(user);

}

@Override

public User validateUser(String uid, String password) {

System.out.println("b");

return uDao.validateUser(uid, password);

}

public List<TransactionDetails> listTransaction(String email_id)

{

System.out.println("trans2");

List<TransactionDetails> l1 = uDao.listTransaction(email_id);

System.out.println("size"+l1.size());

return l1;

}

UserDao.java

-----------------------------------

package com.users.dao;

import java.util.List;

import com.users.bean.TransactionDetails;

import com.users.model.User;

public interface UserDao {

public void addUser(User user);

public User validateUser(String uid, String password);

public List<TransactionDetails> listTransaction(String email_id);

}

UserDaoImpl.java

---------------------------------------

package com.users.dao;

import java.sql.Array;

import java.util.List;

import java.util.Map;

import java.util.Iterator;

import javax.jms.Session;

import javax.management.Query;

import javax.resource.cci.ResultSet;

import org.hibernate.SQLQuery;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.AnnotationConfiguration;

import org.hibernate.criterion.Restrictions;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Repository;

import com.users.bean.TransactionDetails;

import com.users.bean.UserBean;

import com.users.model.User;

@Repository("uDao")

public class UserDaoImpl implements UserDao {

@Autowired

private SessionFactory sessionFactory;

int k;

public void addUser(User user) {

System.out.println("4");

sessionFactory.getCurrentSession().save(user);

}

@SuppressWarnings("finally")

public User validateUser(String email_id, String password)

{

System.out.println("cccc");

User l1 = new User();

try

{

System.out.println("cc1111");

String sql = "SELECT user_id FROM USERS WHERE email_id = :email_id and password = :password";

SQLQuery query = sessionFactory.getCurrentSession().createSQLQuery(sql);

query.setParameter("password",password);

query.setParameter("email_id",email_id);

int u1 = (Integer) query.uniqueResult();

k = u1;

System.out.println(u1);

System.out.println("d");

}

catch(Exception e)

{

if(k==0)

{

l1.setEmail_id("null");

l1.setPassword("null");

}

finally

{

System.out.println(l1.getEmail_id());

return l1;

}

@SuppressWarnings("unchecked")

public List<TransactionDetails> listTransaction(String email_id) {

System.out.println("trans3");

String sql = "SELECT a.user_id, a.transaction_id FROM user_transaction a inner join users b on a.user_id = b.user_id AND b.email_id = :email_id";

SQLQuery query = sessionFactory.getCurrentSession().createSQLQuery(sql);

query.setParameter("email_id",email_id);

TransactionDetails toto = new TransactionDetails();

System.out.println("hoho");

List<TransactionDetails> l = query.list();

Iterator it=l.iterator();

List<TransactionDetails> l2 = null;

while(it.hasNext())

{

Object rows[] = (Object[])it.next();

System.out.println(rows[0]+ " -- " +rows[1]);

}

return l;

}

notsave.jsp

--------------------------------------------

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

pageEncoding="ISO-8859-1"%>

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<html>

<body>

<h2 style="color:red">Incorrect Credentials, please try again</h2>

<form:form method="POST" action="login2.html" modelAttribute="user" id="form">

<table>

</table>

</form:form>

</body>

</html>

save.jsp

-----------------------------------------------

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>
<body>
<h2>Add Employee Data</h2>
<form:form method="POST" action="save.html">
<table>
<tr>
<td><form:label path="id">Transaction ID:</form:label></td>
<td><form:input path="id" value="${i.transaction_id}" readonly="true"/></td>
</tr>
<tr>
<td><form:label path="name">User ID:</form:label></td>
<td><form:input path="name" value="${i.user_id}"/></td>
</tr>

</table>
<input type="submit" value="Save"/>
</form:form>

<c:if test="${!empty t1}">
<table align="left" border="1">
<tr>
<th>transaction ID</th>
<th>User ID</th>

</tr>

<c:forEach var="i" items="${t1}">
<tr>
<td><c:out value="${i.transaction_id}"/></td>
<td><c:out value="${i.user_id}"/></td>
<td align="center"><a href="edit.html?id=${i.transaction_id}">Edit</a> | <a href="delete.html?id=${i.transaction_id}">Delete</a></td>
</tr>
</c:forEach>
</table>
</c:if>

</body>
</html>

On successful login, transaction data of user:

Products

Monday, 12 October 2015

Module 1.. Calling transaction summary on successful login

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