Ứng dụng Java Web login đơn giản sử dụng Spring MVC, Spring Security và Spring JDBC
Công ty Vĩnh Cửu tuyển dụng lập trình viên Java

1- Giới thiệu

Tài liệu được viết dựa trên:
  • Eclipse 4.6 (NEON)

  • Spring MVC 4.x

  • Spring Security 4.x

  • Spring JDBC 4.x

  • (Annotation Config)

2- Demo

Xem trước ứng dụng:

3- Chuẩn bị database

  • ORACLE:
-- Create table
create table USERS
(
  USERNAME VARCHAR2(36) not null,
  PASSWORD VARCHAR2(36) not null,
  ENABLED  NUMBER(1) not null
) ;

alter table USERS
  add constraint USER_PK primary key (USERNAME);

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

-- Create table
create table USER_ROLES
(
  ROLE_ID   VARCHAR2(50) not null,
  USERNAME  VARCHAR2(36) not null,
  USER_ROLE VARCHAR2(30) not null
) ;
 
alter table USER_ROLES
  add constraint USER_ROLE_PK primary key (ROLE_ID);

alter table USER_ROLES
  add constraint USER_ROLE_UK unique (USERNAME, USER_ROLE);
 
-------------------------------
 
insert into users (USERNAME, PASSWORD, ENABLED)
values ('dbuser1', '12345', 1);

insert into users (USERNAME, PASSWORD, ENABLED)
values ('dbadmin1', '12345', 1);  


insert into User_Roles (ROLE_ID, USERNAME, USER_ROLE)
values ('1', 'dbuser1', 'USER');

insert into User_Roles (ROLE_ID, USERNAME, USER_ROLE)
values ('2', 'dbadmin1', 'ADMIN');

insert into User_Roles (ROLE_ID, USERNAME, USER_ROLE)
values ('3', 'dbadmin1', 'USER');

-------------------------------
Commit;
  • MySQL & SQL Server:
-- Create table
create table USERS
(
 USERNAME VARCHAR(36) not null,
 PASSWORD VARCHAR(36) not null,
 ENABLED  smallint not null
) ;

alter table USERS
 add constraint USER_PK primary key (USERNAME);

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

-- Create table
create table USER_ROLES
(
 ROLE_ID   VARCHAR(50) not null,
 USERNAME  VARCHAR(36) not null,
 USER_ROLE VARCHAR(30) not null
) ;

alter table USER_ROLES
 add constraint USER_ROLE_PK primary key (ROLE_ID);

alter table USER_ROLES
 add constraint USER_ROLE_UK unique (USERNAME, USER_ROLE);

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

insert into users (USERNAME, PASSWORD, ENABLED)
values ('dbuser1', '12345', 1);

insert into users (USERNAME, PASSWORD, ENABLED)
values ('dbadmin1', '12345', 1);  


insert into User_Roles (ROLE_ID, USERNAME, USER_ROLE)
values ('1', 'dbuser1', 'USER');

insert into User_Roles (ROLE_ID, USERNAME, USER_ROLE)
values ('2', 'dbadmin1', 'ADMIN');

insert into User_Roles (ROLE_ID, USERNAME, USER_ROLE)
values ('3', 'dbadmin1', 'USER');

4- Tạo Project

  • File/New/Other...
Nhập vào:
  • Group ID: org.o7planning
  • Artifact ID: SpringMVCAnnotationSecurity
  • Package: org.o7planning.tutorial.springmvcsecurity
Project đã được tạo ra:
Bạn đừng lo lắng với thông báo lỗi khi Project vừa được tạo ra. Lý do là bạn chưa khai báo thư viện Servlet.
Sửa cấu trúc project:
Xóa file index.jsp.
Nhấn phải vào project chọn properties:

5- Cấu hình Maven & web.xml

Cấu hình sử dụng Servlet 3.x
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"
 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>Spring MVC Security</display-name>
 

</web-app>
Maven:
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>org.o7planning</groupId>
<artifactId>SpringMVCAnnotationSecurity</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>SpringMVCAnnotationSecurity Maven Webapp</name>
<url>http://maven.apache.org</url>




  <properties>
      <!-- Generic properties -->
      <java.version>1.7</java.version>
      <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
  </properties>


  <repositories>
      <!-- Repository for ORACLE JDBC Driver -->
      <repository>
          <id>codelds</id>
          <url>https://code.lds.org/nexus/content/groups/main-repo</url>
      </repository>
  </repositories>

  <dependencies>

      <!-- Spring framework START -->
      <!-- http://mvnrepository.com/artifact/org.springframework/spring-core -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
          <version>4.2.5.RELEASE</version>
      </dependency>

      <!-- http://mvnrepository.com/artifact/org.springframework/spring-web -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-web</artifactId>
          <version>4.2.5.RELEASE</version>
      </dependency>

      <!-- http://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>4.2.5.RELEASE</version>
      </dependency>
    
    

      <!-- http://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>4.2.5.RELEASE</version>
      </dependency>

    
      <!-- Spring framework END -->


      <!-- Spring Security Artifacts - START -->
      <!-- http://mvnrepository.com/artifact/org.springframework.security/spring-security-web -->
      <dependency>
          <groupId>org.springframework.security</groupId>
          <artifactId>spring-security-web</artifactId>
          <version>4.0.4.RELEASE</version>
      </dependency>

      <!-- http://mvnrepository.com/artifact/org.springframework.security/spring-security-config -->
      <dependency>
          <groupId>org.springframework.security</groupId>
          <artifactId>spring-security-config</artifactId>
          <version>4.0.4.RELEASE</version>
      </dependency>
      <!-- Spring Security Artifacts - END -->

      <!-- Jstl for jsp page -->
      <!-- http://mvnrepository.com/artifact/javax.servlet/jstl -->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jstl</artifactId>
          <version>1.2</version>
      </dependency>

      <!-- Servlet API -->
      <!-- http://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>javax.servlet-api</artifactId>
          <version>3.1.0</version>
          <scope>provided</scope>
      </dependency>

      <!-- JSP API -->
      <!-- http://mvnrepository.com/artifact/javax.servlet.jsp/jsp-api -->
      <dependency>
          <groupId>javax.servlet.jsp</groupId>
          <artifactId>jsp-api</artifactId>
          <version>2.2</version>
          <scope>provided</scope>
      </dependency>

      <!-- MySQL JDBC driver -->
      <!-- http://mvnrepository.com/artifact/mysql/mysql-connector-java -->
      <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>5.1.34</version>
      </dependency>

      <!-- Oracle JDBC driver -->
      <dependency>
          <groupId>com.oracle</groupId>
          <artifactId>ojdbc6</artifactId>
          <version>11.2.0.3</version>
      </dependency>

      <!-- SQLServer JDBC driver (JTDS) -->
      <!-- http://mvnrepository.com/artifact/net.sourceforge.jtds/jtds -->
      <dependency>
          <groupId>net.sourceforge.jtds</groupId>
          <artifactId>jtds</artifactId>
          <version>1.3.1</version>
      </dependency>
    
    
  </dependencies>
 
  <build>
      <finalName>SpringMVCAnnotationSecurity</finalName>
      <plugins>
    
          <!-- Config: Maven Tomcat Plugin -->
          <!-- http://mvnrepository.com/artifact/org.apache.tomcat.maven/tomcat7-maven-plugin -->
          <plugin>
              <groupId>org.apache.tomcat.maven</groupId>
              <artifactId>tomcat7-maven-plugin</artifactId>
              <version>2.2</version>
              <!-- Config: contextPath and Port (Default: /SpringMVCAnnotationSecurity : 8080) -->
              <!--
              <configuration>
                  <path>/</path>
                  <port>8899</port>
              </configuration>
              -->   
          </plugin>
      </plugins>
  </build>       
 
</project>

6- Cấu hình Spring MVC & Security

SpringWebAppInitializer.java
package org.o7planning.springmvcsecurity.config;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;

import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.DispatcherServlet;

public class SpringWebAppInitializer implements WebApplicationInitializer {

    @Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        AnnotationConfigWebApplicationContext appContext = new AnnotationConfigWebApplicationContext();
        appContext.register(ApplicationContextConfig.class);

        ServletRegistration.Dynamic dispatcher = servletContext.addServlet("SpringDispatcher",
                new DispatcherServlet(appContext));
        dispatcher.setLoadOnStartup(1);
        dispatcher.addMapping("/");
    }

}
Class để cấu hình nội dung của Spring MVC, bao gồm:
  • DataSource
  • Transaction Manager
  • Beans
  • ...
ApplicationContextConfig.java
package org.o7planning.springmvcsecurity.config;

import javax.sql.DataSource;

import org.o7planning.springmvcsecurity.dao.UserInfoDAO;
import org.springframework.beans.factory.annotation.Autowired;
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.context.annotation.PropertySource;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.core.env.Environment;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@ComponentScan("org.o7planning.springmvcsecurity.*")
@EnableTransactionManagement
// Load to Environment.
@PropertySource("classpath:datasource-cfg.properties")
public class ApplicationContextConfig {

 

   // Lưu trữ các giá thuộc tính load bởi @PropertySource.
   @Autowired
   private Environment env;

   @Autowired
   private UserInfoDAO userInfoDAO;

   @Bean
   public ResourceBundleMessageSource messageSource() {
       ResourceBundleMessageSource rb = new ResourceBundleMessageSource();
       // Load property in message/validator.properties
       rb.setBasenames(new String[] { "messages/validator" });
       return rb;
   }

   @Bean(name = "viewResolver")
   public InternalResourceViewResolver getViewResolver() {
       InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
       viewResolver.setPrefix("/WEB-INF/pages/");
       viewResolver.setSuffix(".jsp");
       return viewResolver;
   }

   @Bean(name = "dataSource")
   public DataSource getDataSource() {
       DriverManagerDataSource dataSource = new DriverManagerDataSource();
 
       // Xem: datasouce-cfg.properties
       dataSource.setDriverClassName(env.getProperty("ds.database-driver"));
       dataSource.setUrl(env.getProperty("ds.url"));
       dataSource.setUsername(env.getProperty("ds.username"));
       dataSource.setPassword(env.getProperty("ds.password"));

       System.out.println("## getDataSource: " + dataSource);

       return dataSource;
   }

   // Transaction Manager
   @Autowired
   @Bean(name = "transactionManager")
   public DataSourceTransactionManager getTransactionManager(DataSource dataSource) {
       DataSourceTransactionManager transactionManager = new DataSourceTransactionManager(dataSource);

       return transactionManager;
   }
 
}
ApplicationContextConfig sẽ đọc file datasouce-cfg.xml:
datasouce-cfg.properties (For Oracle)

# DataSource

ds.database-driver=oracle.jdbc.driver.OracleDriver
ds.url=jdbc:oracle:thin:@localhost:1521:db12c
ds.username=test
ds.password=12345
datasource-cfg.properties (For SQL Server)

# DataSource

ds.database-driver=net.sourceforge.jtds.jdbc.Driver
ds.url=jdbc:jtds:sqlserver://localhost:1433/simplehr;instance=SQLEXPRESS
ds.username=test
ds.password=12345
datasource-cfg.properties (For MySQL)

# DataSource

ds.database-driver=com.mysql.jdbc.Driver
ds.url=jdbc:mysql://localhost:3306/mydatabase
ds.username=root
ds.password=12345
WebMvcConfig.java
package org.o7planning.springmvcsecurity.config;

import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.List;

import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@EnableWebMvc
public class WebMvcConfig extends WebMvcConfigurerAdapter {

   private static final Charset UTF8 = Charset.forName("UTF-8");
 
   // Cấu hình UTF-8 cho các trang.
   @Override
   public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
       StringHttpMessageConverter stringConverter = new StringHttpMessageConverter();
       stringConverter.setSupportedMediaTypes(Arrays.asList(new MediaType("text", "plain", UTF8)));
       converters.add(stringConverter);

       // Add other converters ...
   }

 

   // Cấu hình để sử dụng các file nguồn tĩnh (html, image, ..)
   // Tương đương với <mvc:resources/> trong cấu hình sử dụng XML.
   @Override
   public void addResourceHandlers(ResourceHandlerRegistry registry) {
       registry.addResourceHandler("/css/**").addResourceLocations("/css/").setCachePeriod(31556926);
       registry.addResourceHandler("/img/**").addResourceLocations("/img/").setCachePeriod(31556926);
       registry.addResourceHandler("/js/**").addResourceLocations("/js/").setCachePeriod(31556926);
   }

 
   // Tương đương cấu hình trong xml.
   @Override
   public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
       configurer.enable();
   }

}
SpringSecurityInitializer.java
package org.o7planning.springmvcsecurity.config;

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


public class SpringSecurityInitializer extends AbstractSecurityWebApplicationInitializer {

   // Do nothing

}
WebSecurityConfig.java
package org.o7planning.springmvcsecurity.config;

import org.o7planning.springmvcsecurity.authentication.MyDBAuthenticationService;
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 = @EnableWebMVCSecurity + Extra features
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

 
   @Autowired
   MyDBAuthenticationService myDBAauthenticationService;

   @Autowired
   public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
 
       // Các User trong bộ nhớ (MEMORY).

       auth.inMemoryAuthentication().withUser("user1").password("12345").roles("USER");
       auth.inMemoryAuthentication().withUser("admin1").password("12345").roles("USER, ADMIN");

  
       // Các User trong Database
       auth.userDetailsService(myDBAauthenticationService);

   }

   @Override
   protected void configure(HttpSecurity http) throws Exception {

       http.csrf().disable();
 
       // Các trang không yêu cầu login
       http.authorizeRequests().antMatchers("/", "/welcome", "/login", "/logout").permitAll();
 
       // Trang /userInfo yêu cầu phải login với vai trò USER hoặc ADMIN.
       // Nếu chưa login, nó sẽ redirect tới trang /login.
       http.authorizeRequests().antMatchers("/userInfo").access("hasAnyRole('ROLE_USER', 'ROLE_ADMIN')");

       // For ADMIN only.
       // Trang chỉ dành cho ADMIN
       http.authorizeRequests().antMatchers("/admin").access("hasRole('ROLE_ADMIN')");

 
       // Khi người dùng đã login, với vai trò XX.
       // Nhưng truy cập vào trang yêu cầu vai trò YY,
       // Ngoại lệ AccessDeniedException sẽ ném ra.
       http.authorizeRequests().and().exceptionHandling().accessDeniedPage("/403");

 
       // Cấu hình cho Login Form.
       http.authorizeRequests().and().formLogin()//
 
               // Submit URL của trang login
               .loginProcessingUrl("/j_spring_security_check") // Submit URL
               .loginPage("/login")//
               .defaultSuccessUrl("/userInfo")//
               .failureUrl("/login?error=true")//
               .usernameParameter("username")//
               .passwordParameter("password")
 
               // Cấu hình cho Logout Page.
               .and().logout().logoutUrl("/logout").logoutSuccessUrl("/logoutSuccessful");

   }
}

7- Các class tham gia vào Security

Class UserInfo tương ứng với một bản ghi trong bảng USERS.
UserInfo.java
package org.o7planning.springmvcsecurity.model;

public class UserInfo {

    private String userName;
    private String password;
    
    public UserInfo()  {
        
    }

    public UserInfo(String userName, String password) {
        this.userName = userName;
        this.password = password;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

}
Class UserInfoMapper sử dụng để ánh xạ các cột trong cậu lệnh SQL tương ứng với các trường của class.
UserInfoMapper.java
package org.o7planning.springmvcsecurity.mapper;

import java.sql.ResultSet;
import java.sql.SQLException;

import org.o7planning.springmvcsecurity.model.UserInfo;
import org.springframework.jdbc.core.RowMapper;

public class UserInfoMapper implements RowMapper<UserInfo> {

    @Override
    public UserInfo mapRow(ResultSet rs, int rowNum) throws SQLException {

        String userName = rs.getString("Username");
        String password = rs.getString("Password");

        return new UserInfo(userName, password);
    }

}
UserInfoDAO.java
package org.o7planning.springmvcsecurity.dao;

import java.util.List;

import org.o7planning.springmvcsecurity.model.UserInfo;

public interface UserInfoDAO {
    
    public UserInfo findUserInfo(String userName);
    
    // [USER,AMIN,..]
    public List<String> getUserRoles(String userName);
    
}
UserInfoDAOImpl.java
package org.o7planning.springmvcsecurity.dao.impl;

import java.util.List;

import javax.sql.DataSource;

import org.o7planning.springmvcsecurity.dao.UserInfoDAO;
import org.o7planning.springmvcsecurity.mapper.UserInfoMapper;
import org.o7planning.springmvcsecurity.model.UserInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
public class UserInfoDAOImpl extends JdbcDaoSupport implements UserInfoDAO {

    @Autowired
    public UserInfoDAOImpl(DataSource dataSource) {
        this.setDataSource(dataSource);
    }
 

    @Override
    public UserInfo findUserInfo(String userName) {
        String sql = "Select u.Username,u.Password "//
                + " from Users u where u.Username = ? ";

        Object[] params = new Object[] { userName };
        UserInfoMapper mapper = new UserInfoMapper();
        try {
            UserInfo userInfo = this.getJdbcTemplate().queryForObject(sql, params, mapper);
            return userInfo;
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }


    @Override
    public List<String> getUserRoles(String userName) {
        String sql = "Select r.User_Role "//
                + " from User_Roles r where r.Username = ? ";
        
        Object[] params = new Object[] { userName };
        
        List<String> roles = this.getJdbcTemplate().queryForList(sql,params, String.class);
        
        return roles;
    }
    
}
Class MyDBAuthenticationService sử dụng để tùy biến xác thực, nó thi hành interface AuthenticationService.
MyDBAuthenticationService.java
package org.o7planning.springmvcsecurity.authentication;

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

import org.o7planning.springmvcsecurity.dao.UserInfoDAO;
import org.o7planning.springmvcsecurity.model.UserInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

@Service
public class MyDBAuthenticationService implements UserDetailsService {

    @Autowired
    private UserInfoDAO userInfoDAO;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        UserInfo userInfo = userInfoDAO.findUserInfo(username);
        System.out.println("UserInfo= " + userInfo);

        if (userInfo == null) {
            throw new UsernameNotFoundException("User " + username + " was not found in the database");
        }
        
        // [USER,ADMIN,..]
        List<String> roles= userInfoDAO.getUserRoles(username);
        
        List<GrantedAuthority> grantList= new ArrayList<GrantedAuthority>();
        if(roles!= null)  {
            for(String role: roles)  {
                // ROLE_USER, ROLE_ADMIN,..
                GrantedAuthority authority = new SimpleGrantedAuthority("ROLE_" + role);
                grantList.add(authority);
            }
        }        
        
        UserDetails userDetails = (UserDetails) new User(userInfo.getUserName(), //
                userInfo.getPassword(),grantList);

        return userDetails;
    }
    
}

8- Spring MVC Controller

MainController.java
package org.o7planning.springmvcsecurity.controller;

import java.security.Principal;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class MainController {

   @RequestMapping(value = { "/", "/welcome" }, method = RequestMethod.GET)
   public String welcomePage(Model model) {
       model.addAttribute("title", "Welcome");
       model.addAttribute("message", "This is welcome page!");
       return "welcomePage";
   }

   @RequestMapping(value = "/admin", method = RequestMethod.GET)
   public String adminPage(Model model) {
       return "adminPage";
   }

   @RequestMapping(value = "/login", method = RequestMethod.GET)
   public String loginPage(Model model ) {
     
       return "loginPage";
   }

   @RequestMapping(value = "/logoutSuccessful", method = RequestMethod.GET)
   public String logoutSuccessfulPage(Model model) {
       model.addAttribute("title", "Logout");
       return "logoutSuccessfulPage";
   }

   @RequestMapping(value = "/userInfo", method = RequestMethod.GET)
   public String userInfo(Model model, Principal principal) {
 
       // Sau khi user login thanh cong se co principal
       String userName = principal.getName();

       System.out.println("User Name: "+ userName);

       return "userInfoPage";
   }

   @RequestMapping(value = "/403", method = RequestMethod.GET)
   public String accessDenied(Model model, Principal principal) {
       
       if (principal != null) {
           model.addAttribute("message", "Hi " + principal.getName()
                   + "<br> You do not have permission to access this page!");
       } else {
           model.addAttribute("msg",
                   "You do not have permission to access this page!");
       }
       return "403Page";
   }
}

9- JSP Pages

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

<div style="border: 1px solid #ccc;padding:5px;margin-bottom:20px;">

  <a href="${pageContext.request.contextPath}/welcome">Home</a>

  | &nbsp;
 
   <a href="${pageContext.request.contextPath}/userInfo">User Info</a>
 
  | &nbsp;
 
  <a href="${pageContext.request.contextPath}/admin">Admin</a>
 
  <c:if test="${pageContext.request.userPrincipal.name != null}">
 
     | &nbsp;
     <a href="${pageContext.request.contextPath}/logout">Logout</a>
    
  </c:if>
 
</div>
403Page.jsp
<%@page session="false"%>
<html>
<head>
<title>Access Denied</title>
</head>
<body>
<jsp:include page="_menu.jsp"/>

    <h3 style="color:red;">${message}</h3>
</body>
</html>
adminPage.jsp
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@page session="true"%>

<html>
<head>
<title>${title}</title>
</head>
<body>
    <jsp:include page="_menu.jsp" />

    <h2>Admin Page</h2>


    <h3>Welcome : ${pageContext.request.userPrincipal.name}</h3>

    <b>This is protected page!</b>  
</body>
</html>
loginPage.jsp
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<html>
<head><title>Login</title></head>
<body>
   <jsp:include page="_menu.jsp" />
   
   
   <h1>Login</h1>
    
     <!-- /login?error=true -->
     <c:if test="${param.error == 'true'}">
         <div style="color:red;margin:10px 0px;">
         
                Login Failed!!!<br />
                Reason :  ${sessionScope["SPRING_SECURITY_LAST_EXCEPTION"].message}
                
         </div>
    </c:if>
      
   <h3>Enter user name and password:</h3>  
    
   <form name='f' action="${pageContext.request.contextPath}/j_spring_security_check" 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="submit" /></td>
         </tr>
      </table>
  </form>
</body>
</html>
logoutSuccessfulPage.jsp
<html>
<head>
<title>Logout</title>
</head>
<body>
    <jsp:include page="_menu.jsp" />

    <h1>Logout Successful!</h1>
</body>
</html>
userInfoPage.jsp
<%@page session="false"%>
<html>
<head>
<title>${title}</title>
</head>
<body>
    <jsp:include page="_menu.jsp" />


    <h1>Message : ${message}</h1>
</body>
</html>
welcomePage.jsp
<%@page session="false"%>
<html>
<head>
<title>${title}</title>
</head>
<body>
  <h1>Message : ${message}</h1>
</body>
</html>

10- Cấu hình và chạy ứng dụng

Trong lần đầu tiên, trước khi chạy ứng dụng bạn cần phải build toàn bộ project.
Nhấn phải chuột vào project chọn:
  • Run As/Maven install

Cấu hình để chạy:

Nhập vào:
  • Name: Run SpringMVCSecurity
  • Base directory: ${workspace_loc:/SpringMVCAnnotationSecurity}
  • Goals: tomcat7:run
Chạy URL:
Gõ vào đường dẫn xem thông tin user, trong trường hợp bạn chưa login, website sẽ chuyển hướng tới trang login.
Nếu bạn nhập sai thông tin và Submit. Website sẽ chuyển hướng trở lại trang login. Chúng ta cần sử lý và thông báo lỗi đầy đủ sau
Trong trường hợp đăng nhập thành công:
Bạn có thể thử với đường dẫn. Đường dẫn trên chỉ cho phép user với vai trò ADMIN (ROLE_ADMIN) được quyền truy cập:

Trong trường hợp chưa login, website sẽ chuyển hướng tới trang login, nếu bạn login vào với ROLE_USER bạn sẽ nhận được thông báo cấm truy cập (Access Denied)

11- Fix Error!

Chú ý, nếu bạn nhận được lỗi:
HTTP Status 404 - /SpringMVCAnnotationSecurity/j_spring_security_check
Hãy đảm bảo rằng bạn đã có class SpringSecurityInitializer:
SpringSecurityInitializer.java
package org.o7planning.springmvcsecurity.config;

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


public class SpringSecurityInitializer extends AbstractSecurityWebApplicationInitializer {

    // Do nothing

}