[Java知识库]Spring Security + OAuth2.0 整合简单案例（Spring Boot）【1】

1 新建SpringBoot项目

新建SpringBoot项目后将pom.xml修改，版本号尽量一致，以免出现一些奇奇怪怪的bug

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/>
    </parent>

    <groupId>com.study</groupId>
    <artifactId>springsecurityoauth2-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springsecurityoauth2-demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-security</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

1.1 编写SpringSecurity的配置类SecurityConfig

package com.study.source.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {


    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
                .authorizeRequests()
                .antMatchers("/oauth/**", "/login/**", "logout/**").permitAll()
                .anyRequest().authenticated()
                .and()
                .formLogin()
                .permitAll();
    }
}

1.2 编写授权服务器配置类AuthorizationServerConfig

该类需要继承AuthorizationServerConfigurerAdapter

@EnableAuthorizationServer注解不要忘了加

package com.study.source.config;

import com.study.source.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;

/**
 * 授权服务器配置
 */
@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        // inMemory() 只在内存中生效
        clients.inMemory()
                // 配置client-id
                .withClient("admin")
                // 配置client-secret
                .secret(passwordEncoder.encode("112233"))
                // 配置访问token 的有效期
//                .accessTokenValiditySeconds(3600)
                // 配置redirect_uri, 用于授权成功后跳转
                .redirectUris("http://www.baidu.com")
                // 配置申请的权限范围
                .scopes("all")
                // authorization_code：授权码模式
                // password：密码模式
                .authorizedGrantTypes("authorization_code");
//                .authorizedGrantTypes("password");
    }
}

1.3 编写资源服务器配置类ResourceServerConfig

该类需要继承ResourceServerConfigurerAdapter
@EnableResourceServer注解不要忘了加

package com.study.source.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;

@Configuration
@EnableResourceServer
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {

    @Override
    public void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .anyRequest()
                .authenticated()
                .and()
                .requestMatchers()
                .antMatchers("/user/**");
    }
}

1.4 SpringSecurity用于认证授权的接口UserDetailsService

1. 新建UserService，实现UserDetailsService接口
2. 因为该项目只是用于测试，所以没有写相关数据库查询的逻辑，只是把用户名和密码硬编码了。后期需要用的话只需要把硬编码修改成从数据库中查询相关用户的权限即可

package com.study.source.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
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.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserService implements UserDetailsService {

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        String password = passwordEncoder.encode("123456");

        List<GrantedAuthority> authorities = AuthorityUtils.createAuthorityList("admin");

        return new User("admin", password, authorities);
    }
}

1.5 User，UserController

1. User类需要实现UserDetails接口，然后可以自己添加一些需要的属性
2. UserController是用于测试的Controller

1.5.1 User

package com.study.source.pojo;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.List;

public class User implements UserDetails {

   private String username;
   private String password;
   private List<GrantedAuthority> authorities;

   public User(String username, String password, List<GrantedAuthority> authorities) {
       this.username = username;
       this.password = password;
       this.authorities = authorities;
   }

   @Override
   public Collection<? extends GrantedAuthority> getAuthorities() {
       return null;
   }

   @Override
   public String getPassword() {
       return null;
   }

   @Override
   public String getUsername() {
       return null;
   }

   @Override
   public boolean isAccountNonExpired() {
       return false;
   }

   @Override
   public boolean isAccountNonLocked() {
       return false;
   }

   @Override
   public boolean isCredentialsNonExpired() {
       return false;
   }

   @Override
   public boolean isEnabled() {
       return false;
   }
}

1.5.2 UserController

package com.study.source.controller;

import org.springframework.security.core.Authentication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/user")
public class UserController {

   @RequestMapping("/getCurrentUser")
   public Object getCurrentUser(Authentication authentication) {
       return authentication.getPrincipal();
   }
}

2 验证授权码模式

2.1 在浏览器中获取到授权码code

我们启动刚刚我们创建的那个项目，在浏览器中输入下面的地址

http://localhost:8080/oauth/authorize?response_type=code&client_id=admin&redirect_uri=http://www.baidu.com&scope=all

细心的朋友已经发现了，这个uri和我们刚刚在授权服务器配置类里面配置的是一样的。

访问之后会出现以下界面

账号是admin，密码是123456
这里就是我们在1.4那个类中设置的账号密码

选择Approve之后点击Authorize

然后会跳转到百度，并且在地址后面携带了一个code，这个就是我们需要的授权码。

2.2 获取token

在这里我们使用postman工具来进行模拟获取token的过程

访问接口

http://localhost:8080/oauth/token

配置下面两个地方
1.

2.

发送请求后就可以得到token

2.3 使用token访问资源

携带刚刚获取的token去访问controller

授权类型选择Bearer Type

结果

至此，授权码模式演示完毕，谢谢大家