Code ví dụ Spring Security, Tạo form login - XML Config

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Code ví dụ Spring Security, Tạo form login – XML Config

Các công nghệ sử dụng:

Spring 5.0.2.RELEASE
Spring Security 5.0.2.RELEASE
Maven
Tomcat
JDK 1.8
Eclipse + Spring Tool Suite

Code ví dụ Spring MVC Security: Tạo, đăng ký form login tùy chỉnh – XML Config. Hướng dẫn cấu hình config ví dụ Spring MVC Security Form Login

Tạo Maven Project

Thư viện sử dụng:

Ở đây mình sử dụng Spring Security 5.0.2.RELEASE

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>stackjava.com</groupId>
  <artifactId>SpringMvcSecurityHello</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <properties>
    <spring.version>5.0.2.RELEASE</spring.version>
    <spring.security.version>5.0.2.RELEASE</spring.security.version>
    <jstl.version>1.2</jstl.version>

  </properties>

  <dependencies>

    <!-- Spring MVC -->
    <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-web</artifactId>
      <version>${spring.security.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.security</groupId>
      <artifactId>spring-security-config</artifactId>
      <version>${spring.security.version}</version>
    </dependency>

    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.2</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>

    <!-- jstl for jsp page -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>${jstl.version}</version>
    </dependency>

  </dependencies>
</project>

File 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_2_5.xsd"
  version="2.5">
  <display-name>SpringSecurityFormLogin</display-name>

  <!-- SPRING MVC -->
  <servlet>
    <servlet-name>spring-mvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>/WEB-INF/spring-mvc-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring-mvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- Creates the Spring Container shared by all Servlets and Filters -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <listener>
    <listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>
  </listener>


  <!-- Loads Spring Security config file -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
      /WEB-INF/spring-security.xml
    </param-value>
  </context-param>

  <!-- Spring Security -->
  <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>

File Spring Config:

<?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.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">

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

  <bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix">
      <value>/WEB-INF/views/jsp/</value>
    </property>
    <property name="suffix">
      <value>.jsp</value>
    </property>
  </bean>

</beans>

File Spring Security Config:

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
  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"
        login-processing-url="/j_spring_security_login"
        default-target-url="/admin"
      authentication-failure-url="/login?error"
      username-parameter="username"
      password-parameter="password" />
    <logout logout-url="/j_spring_security_logout"
      logout-success-url="/logout" delete-cookies="JSESSIONID" />
  </http>

  <authentication-manager>
    <authentication-provider>
      <user-service>
        <user name="admin" password="{noop}123456" authorities="ROLE_ADMIN" />
      </user-service>
    </authentication-provider>
  </authentication-manager>
</beans:beans>

Để đăng ký form login ta sử dụng thẻ <form-login>

Một số thuộc tính của thẻ <form-login> gồm:

always-use-default-target Nếu bằng true thì sẽ luôn chuyển hướng người dùng tới URL được định nghĩa ở thuộc tính default-target-url, bất kể hành động trước đó của người dùng muốn truy cập vào URL nào. Giá trị mặc định làfalse.
authentication-failure-url Định nghĩ URL sẽ được chuyển hướng tới nếu login thất bại, Mặc định là /login?error
authentication-failure-handler-ref Có thể sử dụng thay thế thuộc tính authentication-failure-url, nó cho phép bạn điều khiển luồng sau khi xác thực thất bại.
default-target-url Định nghĩa URL mặc định được chuyển hướng tới sau khi login thành công.
authentication-success-handler-ref Có thể sử dụng để thay thế thuộc tính default-target-url và always-use-default-target, Cho phép điều khiển luồng, bổ sung hành động sau khi xác thực thành công.
login-page URL được sử dụng để render trang login, mặc định là “/login”.
login-processing-url URL mà Spring Security xử lý hành động login. mặc định là “/login”. Trong ví dụ này mình để là “/j_spring_security_login” thì action trong form login cũng sẽ có giá trị là “/j_spring_security_login“
password-parameter Tên của request parameter chứa password, mặc định là “password”.
username-parameter Tên của request parameter chứa username, mặc định là “username”

File Controller:

package stackjava.com.springsecurityformlogin.controller;

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

@Controller
public class BaseController {

  @RequestMapping(value = { "/login", "/" })
  public String login(@RequestParam(value = "error", required = false) final String error, 
      final Model model) {
    if (error != null) {
      model.addAttribute("message", "Login Failed!");
    }
    return "login";
  }

  @RequestMapping("/admin")
  public String admin() {
    return "admin";
  }

  @RequestMapping("/logout")
  public String logout(final Model model) {
    model.addAttribute("message", "Logged out!");
    return "login";
  }

}

File view:

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
<title>login</title>
</head>
<body>
  <h1>Spring MVC-Security Login Form</h1>
  <h2>${message}</h2>

  <form name='loginForm' action="<c:url value='j_spring_security_login' />" method='POST'>
    <table>
      <tr>
        <td>User:</td>
        <td><input type='text' name='username'></td>
      </tr>
      <tr>
        <td>Password:</td>
        <td><input type='password' name='password' /></td>
      </tr>
      <tr>
        <td colspan='2'><input name="submit" type="submit" value="login" /></td>
      </tr>
    </table>
    <input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}" />

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

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<head>
<title>Admin Page</title>
</head>
<body>
  <h1>Admin Page</h1>
  <h2>Welcome: ${pageContext.request.userPrincipal.name}</h2>

  <form action="<c:url value="/j_spring_security_logout" />" method="post">
    <input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}" />
    <input type="submit" value="Logout" />
  </form>

</body>
</html>

Demo: