Java
javaTutorial
How to use Java to develop a single sign-on system based on Spring Security OAuth2
How to use Java to develop a single sign-on system based on Spring Security OAuth2
How to use Java to develop a single sign-on system based on Spring Security OAuth2
Introduction:
With the rapid development of the Internet, more and more websites and applications require users to log in, but users do not want to remember an account and password for each website or application. The Single Sign-On (SSO) system can solve this problem, allowing users to access multiple websites and applications without repeated authentication after logging in once. This article will introduce how to use Java to develop a single sign-on system based on Spring Security OAuth2 and provide specific code examples.
1. Preparation work:
Before starting development, we need to prepare some basic tools and environments:
- JDK 1.8 and above;
- Maven 3.0 and above;
- Development IDE, such as Eclipse, IntelliJ IDEA, etc.;
- An available MySQL database.
2. Create a Spring Boot project:
First, we need to create a Spring Boot project and add the required dependencies. Open Eclipse or IntelliJ IDEA, click "New", select "Spring Starter Project", and fill in the necessary information (such as project name, package name, etc.). Then, add the following dependencies to the project's pom.xml file:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
<version>2.3.4.RELEASE</version>
</dependency>
<!-- 添加其他需要的依赖 -->
</dependencies>3. Configure Spring Security OAuth2:
Next, we need to configure the Spring Security OAuth2 module. Create a file named application.yml in the src/main/resources directory and add the following configuration information:
spring:
security:
oauth2:
client:
registration:
custom:
client-id: {your-client-id}
client-secret: {your-client-secret}
provider: custom
auth-uri: {authorization-uri}
token-uri: {token-uri}
user-info-uri: {user-info-uri}
redirect-uri: {redirect-uri}
scope: {scope-list}
provider:
custom:
authorization-uri: {authorization-uri}
token-uri: {token-uri}
user-info-uri: {user-info-uri}
resource:
user-info-uri: {user-info-uri}In the above configuration, {your-client-id}, {your-client-secret} , {authorization-uri}, {token-uri}, {user-info-uri}, {redirect-uri} and {scope-list} need to be replaced with actual values respectively.
4. Create a login page:
Next, we need to create a login page for user login. Create a file named login.html in the src/main/resources/templates directory and add the following code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Login</title>
</head>
<body>
<h2>Login</h2>
<form method="post" action="/login">
<div>
<label for="username">Username:</label>
<input type="text" id="username" name="username" />
</div>
<div>
<label for="password">Password:</label>
<input type="password" id="password" name="password" />
</div>
<button type="submit">Login</button>
</form>
</body>
</html> 5. Create an authentication and authorization server:
Next, we need to create an An authentication server (Authorization Server) and an authorization server (Resource Server) handle user authentication and authorization. Create a Java class named SecurityConfig and add the following code:
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().antMatchers("/login").permitAll().anyRequest().authenticated()
.and().formLogin().loginPage("/login").permitAll()
.and().logout().logoutSuccessUrl("/login?logout").permitAll();
http.csrf().disable();
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.inMemoryAuthentication()
.withUser("admin").password("{noop}admin").roles("ADMIN");
}
} 6. Create a resource server:
Next, we need to create a resource server to protect our API. Create a Java class named ResourceServerConfig and add the following code:
@Configuration
@EnableResourceServer
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {
@Override
public void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().antMatchers("/api/**").authenticated();
}
} 7. Test single sign-on:
At this point, we have completed the development of the single sign-on system. We can run the application and log in by accessing the login page (http://localhost:8080/login) through the browser. After successful login, we can access other protected resources by adding Access Token in the request header.
Conclusion:
This article introduces how to use Java to develop a single sign-on system based on Spring Security OAuth2, and provides specific code examples. By using a single sign-on system, users can easily access multiple websites and applications without having to authenticate repeatedly. I hope this article can help readers better understand and apply the relevant knowledge of Spring Security OAuth2.
The above is the detailed content of How to use Java to develop a single sign-on system based on Spring Security OAuth2. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1665
14
1423
52
1321
25
1269
29
1249
24
Break or return from Java 8 stream forEach?
Feb 07, 2025 pm 12:09 PM
Java 8 introduces the Stream API, providing a powerful and expressive way to process data collections. However, a common question when using Stream is: How to break or return from a forEach operation? Traditional loops allow for early interruption or return, but Stream's forEach method does not directly support this method. This article will explain the reasons and explore alternative methods for implementing premature termination in Stream processing systems. Further reading: Java Stream API improvements Understand Stream forEach The forEach method is a terminal operation that performs one operation on each element in the Stream. Its design intention is
PHP: A Key Language for Web Development
Apr 13, 2025 am 12:08 AM
PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7
PHP vs. Python: Understanding the Differences
Apr 11, 2025 am 12:15 AM
PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.
PHP vs. Other Languages: A Comparison
Apr 13, 2025 am 12:19 AM
PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.
PHP vs. Python: Core Features and Functionality
Apr 13, 2025 am 12:16 AM
PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.
PHP's Impact: Web Development and Beyond
Apr 18, 2025 am 12:10 AM
PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip
PHP: The Foundation of Many Websites
Apr 13, 2025 am 12:07 AM
The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.
PHP vs. Python: Use Cases and Applications
Apr 17, 2025 am 12:23 AM
PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.
