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JavaInterviewPoint

Java Development Tutorials

Spring Security Database Authentication Example JavaConfig + XML

December 21, 2017 by javainterviewpoint Leave a Comment

In the Spring Security Database Authentication Example, we will build a simple Spring MVC Hello World application and build our own login form for our Spring Security application which performs Authentication and Authorization from the database.

In our Spring MVC application the home page will be accessible to everyone, and we will be having admin page which will be accessible to only to the user with admin rights. When the user tries to access the admin page the user will be redirected to the custom login form which we build and asked to log in, if the credentials entered matches the admin privilege then only the user will be allowed to view the admin page.

Creating table

Create USERS and USER_ROLES Table, simply Copy and Paste the following SQL query in the query editor to get the table created.

CREATE TABLE "USERS" 
( 
    "USERNAME" VARCHAR2(255 CHAR) NOT NULL ENABLE, 
    "PASSWORD" VARCHAR2(255 CHAR) NOT NULL ENABLE, 
    PRIMARY KEY ("USERNAME")
);
  
CREATE TABLE "USER_ROLES" 
( 
    "ROLE" VARCHAR2(255 CHAR) NOT NULL ENABLE, 
    "USERNAME" VARCHAR2(255 CHAR) NOT NULL ENABLE, 
    PRIMARY KEY ("ROLE"),
    CONSTRAINT fk_username FOREIGN KEY ("USERNAME") REFERENCES USERS("USERNAME")
);

insert into USERS (USERNAME,PASSWORD) values ('admin', 'password');
insert into USER_ROLES (ROLE, USERNAME) values ('ROLE_ADMIN','admin');

Folder Structure:

Spring Security Database Authentication Example

  1. Create a simple Maven Project “SpringSecurityDatabase” and create a package for our source files “com.javainterviewpoint” under  src/main/java 
  2. Now add the following dependency in the POM.xml
    <project xmlns="http://maven.apache.org/POM/4.0.0"	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"	
    	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0	http://maven.apache.org/maven-v4_0_0.xsd">
    	<modelVersion>4.0.0</modelVersion>
    	<groupId>com.javainterviewpoint</groupId>
    	<artifactId>SpringSecurtiyDatabase</artifactId>
    	<packaging>war</packaging>
    	<version>0.0.1-SNAPSHOT</version>
    	<name>SpringSecurtiyDatabase Maven Webapp</name>
    	<url>http://maven.apache.org</url>
    
    	<properties>
    		<spring.version>4.3.7.RELEASE</spring.version>
    		<security.version>4.0.3.RELEASE</security.version>
    	</properties>
    
    	<dependencies>
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>3.8.1</version>
    			<scope>test</scope>
    		</dependency>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>javax.servlet-api</artifactId>
    			<version>3.1.0</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-core</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>${spring.version}</version>
    		</dependency>
    		<!-- Spring Security -->
    		<dependency>
    			<groupId>org.springframework.security</groupId>
    			<artifactId>spring-security-core</artifactId>
    			<version>${security.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.security</groupId>
    			<artifactId>spring-security-web</artifactId>
    			<version>${security.version}</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.security</groupId>
    			<artifactId>spring-security-config</artifactId>
    			<version>${security.version}</version>
    		</dependency>
    		
    		 <!-- Spring JDBC dependency -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${security.version}</version>
            </dependency>
    		<dependency>
    			<groupId>jstl</groupId>
    			<artifactId>jstl</artifactId>
    			<version>1.2</version>
    		</dependency>
    		<!-- Oracle dependency -->
    		 <dependency>
    			<groupId>com.oracle</groupId>
    			<artifactId>ojdbc14</artifactId>
    			<version>11.2.0</version>
    		</dependency>
    	</dependencies>
    	
    	<build>
    		<finalName>SpringSecurtiyDatabase</finalName>
    		 <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    	</build>
    </project>
  3. Create the Java class HelloController.java under  com.javainterviewpoint folder.
  4. Place the SpringConfig-servlet.xml,SpringSecurity.xml and web.xml  under the WEB-INF directory
  5. View files login.jsp, and admin.jsp are put under the sub directory under WEB-INF/Jsp, index.jsp under webapp directory

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Spring Security Database Authentication Example

web.xml

<web-app 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"
	version="3.1">
	
<servlet>
		<servlet-name>SpringConfig</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- <init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>
				/WEB-INF/SpringConfig-servlet.xml,
				/WEB-INF/SpringSecurity.xml
			</param-value>
		</init-param> -->
	</servlet>
	<servlet-mapping>
		<servlet-name>SpringConfig</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- Loads Spring Security configuration file -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>
			/WEB-INF/SpringConfig-servlet.xml,
			/WEB-INF/SpringSecurity.xml
		</param-value>
	</context-param>

	<!-- Spring Security filter -->
	<filter>
		<filter-name>springSecurityFilterChain</filter-name>
		<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>springSecurityFilterChain</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>
  • The web.xml has everything about the application that a server needs to know, which is placed under the WEB-INF directory.  It contains the name of the SpringConfiguration file, when the DispatcherServlet is initialized the framework will try to load a configuration file “[servlet-name]-servlet.xml” under the WEB-INF directory. We will also be mentioning the location of the SpringSecurity.xml
  • Spring Security depends on the Servlet filter, we will be using the filter “DelegatingFilterProxy” which provides the link between web.xml and application context. (Note : The filter name should only be “springSecurityFilterChain” )

Equivalent of web.xml

package com.javainterviewpoint.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class SpringMvcInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] { AppConfig.class };
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return null;
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }
    
}

SecurityInitializer.java

package com.javainterviewpoint.config;

import org.springframework.security.web.context.AbstractSecurityWebApplicationInitializer;

public class SpringSecurityInitializer extends AbstractSecurityWebApplicationInitializer {

}

SpringConfig-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"
	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">

	<mvc:annotation-driven></mvc:annotation-driven>
	<context:component-scan base-package="com.javainterviewpoint"></context:component-scan>
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/Jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
 </beans>
  • The SpringConfig-servlet.xml is also placed under the WEB-INF directory.
  • <context:component-scan> will let the Spring Container to search for all the annotation under the package “com.javainteriviewpoint”. 
  • <mvc:annotation-driven/> annotation will activate the @Controller, @RequestMapping, @Valid etc annotations.
  • The view is resolved through “org.springframework.web.servlet.view.InternalResourceViewResolver” which searches for the jsp files under the /WEB-INF/Jsp/ directory.

Equivalent of SpringConfig-servlet.xml

package com.javainterviewpoint.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

@EnableWebMvc
@Configuration
@ComponentScan({ "com.javainterviewpoint.*" })
@Import({ SecurityConfig.class })
public class AppConfig {

    @Bean(name = "dataSource")
    public DriverManagerDataSource dataSource() {
        DriverManagerDataSource driverManagerDataSource = new DriverManagerDataSource();
        driverManagerDataSource.setDriverClassName("oracle.jdbc.driver.OracleDriver");
        driverManagerDataSource.setUrl("jdbc:oracle:thin:@rsh2:40051:mydb");
        driverManagerDataSource.setUsername("root");
        driverManagerDataSource.setPassword("root");
        return driverManagerDataSource;
    }
    
    @Bean
    public InternalResourceViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/Jsp/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }
    
}

SpringSecurity.xml

<beans:beans xmlns="http://www.springframework.org/schema/security"
	xmlns:beans="http://www.springframework.org/schema/beans"	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans.xsd
	http://www.springframework.org/schema/security
	http://www.springframework.org/schema/security/spring-security.xsd">

	<http auto-config='true'>
		<intercept-url pattern="/admin*" access="hasRole('ROLE_ADMIN')" />
		<form-login login-page="/login" authentication-failure-url="/error"
			username-parameter="username" password-parameter="password" />
		<csrf />
		<logout logout-success-url="/logout" />
	</http>

	<authentication-manager>
		<authentication-provider>
			<jdbc-user-service data-source-ref="dataSource"
				users-by-username-query="select username, password, 1 as enabled from users where username=?"
				authorities-by-username-query="select  username,role from user_role where username=?" />
		</authentication-provider>
	</authentication-manager>
	
	
	<beans:bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<beans:property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
		<beans:property name="url" value="jdbc:oracle:thin:@rsh2:40051:mydb" />
		<beans:property name="username" value="root" />
		<beans:property name="password" value="root" />
	</beans:bean>

</beans:beans>
  • The <http> tag allows you to configure the Security Settings and access constraints for the web application.
  • We have used the <form-login> tag, so when ever the user tries to login into our application he will be authenticated with help of  the form-login configuration. Lets get some basic understanding of the <form-login> tag.
    • login-page : This the name of our custom login page.
    • authentication-failure-url : Page to which the user has to be forwarded if he has entered invalid credentials
    • username-parameter : Name of the username field
    • password-parameter : Name of the password field
    • csrf :  This is to enable the Cross Site Request Forgery (CSRF) protection, this will be by default disabled.
  • The <intercept-url> element defines the pattern which will be matched against the URLs of the incoming requests, the access attribute validates the role which is required for accessing the URL.
  • <authentication-manager> tag has authentication properties through which the user will have access to different pages.
  • <authentication-provider> tag specifies the username and password. In our application, jdbc-user-service to connect to Database.
    • users-by-username-query – Authenticates the user
    • authorities-by-username-query – Validates the Role of the User

Equivalent to SpringSecurity.xml

package com.javainterviewpoint.config;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    DataSource dataSource;
    
    @Autowired
    public void configAuthentication(AuthenticationManagerBuilder auth) throws Exception {
        
        auth.jdbcAuthentication().dataSource(dataSource)
            .usersByUsernameQuery("select username, password, 1 as enabled from users where username=?")
            .authoritiesByUsernameQuery("select  username,role from user_roles where username=?");
    }   
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.authorizeRequests()
            .antMatchers("/admin*").access("hasRole('ROLE_ADMIN')")
            .and()
                .formLogin().loginPage("/login").failureUrl("/error")
                    .usernameParameter("username").passwordParameter("password")
            .and()
                .logout().logoutSuccessUrl("/logout")
            .and()
                .csrf();
        
    }
}

HelloController.java

package com.javainterviewpoint;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HelloController
{
    @RequestMapping("/admin")
    public ModelAndView admin()
    {
        Authentication authentication = SecurityContextHolder.getContext()
                .getAuthentication();
        
        String welcomeMessage = "Welcome "+authentication.getName()+"!!";
        return new ModelAndView("admin", "welcomeMessage", welcomeMessage);
    }

    @RequestMapping("/error")
    public String error(ModelMap model)
    {
        model.addAttribute("error", "true");
        return "login";

    }

    @RequestMapping("/login")
    public String login()
    {
        return "login";
    }
    @RequestMapping("/logout")
    public String logout(ModelMap model)
    {
        Authentication authentication = SecurityContextHolder.getContext()
                .getAuthentication();
        authentication.setAuthenticated(false);
        
        model.addAttribute("logout", "true");
        return "login";
    }
}
  • Our HelloController has
    • admin() – when the user hits on the URL “/admin” this method gets called and the user will be redirected to the login page, only when the user keys in a valid credentials he will be allowed see the “admin.jsp”. Additionally we have obtained the username from the SecurityContextHolder and pass it to login page
    • Additionally we have added login(), logout() and error() methods for redirecting to the respective pages.

index.jsp

 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title>Spring Security</title>
</head>
<body>
 <h2>Spring Security Authentication and Authorization Example with Database - Home Page!!!</h2>
 <br>
 <h4>
 	<a href="admin">Access Admin Page</a>
 </h4>
</body>
</html>

admin.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>Spring Security Authentication and Authorization - Admin
	Page</title>
</head>
<body>
	<h2>Spring Security Authentication and Authorization - Admin Page</h2>
	<h3>${welcomeMessage}</h3>
	<br>
	<form action="logout" method="post">
		<input type="hidden" name="${_csrf.parameterName}"
			value="${_csrf.token}" />

		<input type="submit" value="Logout">
	</form>
</body>
</html>

login.jsp

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
<title>Custom Login Page</title>
</head>
<body>
	<h3>Custom Login Page</h3>
	<%
	    String error = (String) request.getAttribute("error");
	    if (error != null && error.equals("true"))
	    {
	        out.println("<h4 style=\"color:red\">Invalid login credentials. Please try again!!</h4>");
	    }
	    
	    String logout = (String) request.getAttribute("logout");
	   
	    if (logout != null && logout.equals("true"))
	    {
	        out.println("<h4 style=\"color:green\">You have logged out successfully!!</h4>");
	    }
	     
	%>
	<form action="<c:url value='login' />" method='POST'>

		<table>
			<tr>
				<td>User:</td>
				<td><input type='text' name='username' value=''></td>
			</tr>
			<tr>
				<td>Password:</td>
				<td><input type='password' name='password' /></td>
			</tr>
			<tr>
				<td><input name="submit" type="submit" value="Login" /></td>
				<td><input name="reset" type="reset" /> <input type="hidden"
					name="${_csrf.parameterName}" value="${_csrf.token}" /></td>
			</tr>
		</table>

	</form>
</body>
</html>

we have added CSRF parameters in our login page to prevent the CSRF attacks.

<input name="reset" type="reset" /> <input type="hidden"
 name="${_csrf.parameterName}" value="${_csrf.token}" />

Output

Hit on the URL : http://localhost:8080/SpringSecurityDatabase/

Spring Security Database Authentication Example 2

Hit on the URL : http://localhost:8080/SpringSecurityDatabase/admin

Spring Security Database Authentication Example 1

You will be asked to login, if invalid password is entered you will get the below error and again redirected to the login page.

Spring Security Database Authentication Example 3

Only when you enter the valid credentials you will be allowed to see the admin page.

Spring Security Database Authentication Example 5

   Download Source Code

Filed Under: J2EE, Java, Spring, Spring MVC, Spring Security, Spring Tutorial Tagged With: Spring Security, Spring Security Database Authentication Example

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