spring MVC : Spring Forms

web.xml

=====

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">

    <servlet>

        <servlet-name>dispatcher</servlet-name>

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

        <load-on-startup>2</load-on-startup>

    </servlet>

    <servlet-mapping>

        <servlet-name>dispatcher</servlet-name>

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

    </servlet-mapping>

    <session-config>

        <session-timeout>

            30

        </session-timeout>

    </session-config>

    <welcome-file-list>

        <welcome-file>index.jsp</welcome-file>

    </welcome-file-list>

</web-app>

dispatcher-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:aop="http://www.springframework.org/schema/aop"

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

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

       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd

       http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-4.0.xsd

       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd

       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

   

    <context:component-scan base-package="myspring" />

    <bean id="viewResolver"

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

          p:prefix="/WEB-INF/jsp/"

          p:suffix=".jsp" />

</beans>

index.jsp

======

<jsp:forward page="login.htm" ></jsp:forward>

User.java

======

package myspring;

public class User {

    private String name;

    private String passWord;

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    public String getPassWord() {

        return passWord;

    }

    public void setPassWord(String passWord) {

        this.passWord = passWord;

    }

  

}

MyController.java

===========

package myspring;

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;

@Controller

@RequestMapping("/login.htm")

public class MyController {

    @RequestMapping(method = RequestMethod.GET)

    public String showForm(ModelMap map){

        User user1 = new User();

        map.addAttribute("user", user1);   

    return "login";

    }

   

    @RequestMapping(method = RequestMethod.POST)

    //public String submitForm(@ModelAttribute User user){

    public String submitForm(@ModelAttribute("user") User user){

        if(user.getName().equals("admin") && user.getPassWord().equals("admin")){

    return "success";

        }

   

    return "failure";

    }

}

login.jsp

=====

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

<form:form action="login.htm" method="POST" commandName="user" >

   Enter the user name : <form:input path="name" /> <br />

   Enter the pass word : <form:password path="passWord" /> <br />

   <input type="submit" value="Login" />

   

</form:form>

success.jsp

=======

Hi ${user.name} how are you?

failure.jsp

======

Login failed....