Java spring单点登录系统

目录

• 1.单点登录系统介绍
• 2.简单业务实现

• 2.1添加依赖
• 2.2 项目配置文件
• 2.3添加项目启动类
• 2.4 启动并访问项目

• 3.1 定义安全配置类 SecurityConfig
• 3.2定义用户信息处理对象
• 3.3 网关中登陆路由配置
• 3.4基于Postman进行访问测试
• 3.5 定义登陆页面
• 3.6 构建令牌配置对象
• 3.7 定义认证授权核心配置

• 授权服务器的核心配置
• Postman访问测试

• 4.1 构建令牌配置对象

• 4.4.1 访问auth认证授权服务获取token
• 4.4.2 携带TOKEN访问资源服务器
• 4.4.3 对403异常前端页面显示

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

server:
  port: 8071
spring:
  application:
    name: sca-auth
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
      config:
        server-addr: localhost:8848

package com.jt;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ResourceAuthApplication {
    public static void main(String[] args) {
        SpringApplication.run(ResourceAuthApplication.class, args);
    }
}

package com.jt.auth.config;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
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.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
@Configuration//配置对象--系统启动时底层会产生代理对象,来初始化一些对象
public class SecurityConfig extends WebSecurityConfigurerAdapter {
//WebSecurityConfigurerAdapter 类是个适配器, 在配置的时候,需要我们自己写个配置类去继承他,然后编写自己所特殊需要的配置
    //BCryptPasswordEncoder密码加密对象比MD5安全性更高,MD5暴力反射可以破解过
    @Bean
    public BCryptPasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
    /**
     * 配置认证管理器(负责对客户输入的用户信息进行认证),在其他配置类中会用到这个对象
     * @return
     * @throws Exception
     */
    @Bean
    public AuthenticationManager authenticationManagerBean()
            throws Exception {
        return super.authenticationManagerBean();
    }
    /**在这个方法中定义登录规则
     * 1)对所有请求放行(当前工程只做认证)
     * 2)登录成功信息的返回
     * 3)登录失败信息的返回
     * */
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        //禁用跨域
        http.csrf().disable();
        //放行所有请求
        http.authorizeRequests().anyRequest().permitAll();
        //登录成功与失败的处理
        http.formLogin()
                .successHandler(successHandler()) // .successHandler(AuthenticationSuccessHandler对象)
                .failureHandler(failureHandler());
    }
    @Bean
    //构建successHandler()方法来创建AuthenticationSuccessHandler对象
    public AuthenticationSuccessHandler successHandler(){
//        return new AuthenticationSuccessHandler() {
//            @Override
//            public void onAuthenticationSuccess(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Authentication authentication) throws IOException, ServletException {
//
//            }
//        }
        return (request,response,authentication) ->{
            //1.构建map对象,封装响应数据
            Map<String,Object> map=new HashMap<>();
            map.put("state",200);
            map.put("message","login ok"); //登录成功返回的响应信息
            //2.将map对象写到客户端
            writeJsonToClient(response,map);
        };
    }
    @Bean
    //failureHandler();方法来创建AuthenticationSuccessHandler对象
    public AuthenticationFailureHandler failureHandler(){
        return (request,response, e)-> {
            //1.构建map对象,封装响应数据
            Map<String,Object> map=new HashMap<>();
            map.put("state",500);
            map.put("message","login failure");//登录失败返回的响应信息
            //2.将map对象写到客户端
            writeJsonToClient(response,map);
        };
    }
    //提取公共代码,将对象转为Json传给客户端, 构建writeJsonToClient();
    private void writeJsonToClient(HttpServletResponse response,
                                   Object object) throws IOException { // Object 类型,不只是Map类型,说不准
        //2.将对象转换为json
        //Gson-->toJson  (需要自己找依赖)
        //fastjson-->JSON (spring-cloud-starter-alibaba-sentinel)
        //jackson-->writeValueAsString (spring-boot-starter-web)
        String jsonStr=new ObjectMapper().writeValueAsString(object);
        //3.将json字符串写到客户端
        PrintWriter writer = response.getWriter();
        writer.println(jsonStr);
        writer.flush();
    }
}

package com.jt.auth.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.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;
import java.util.List;
/**
 * 登录时用户信息的获取和封装会在此对象进行实现,
 * 在页面上点击登录按钮时,会调用这个对象的loadUserByUsername方法,
 * 页面上输入的用户名会传给这个方法的参数
 *
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {//获取用户详细信息的接口
    @Autowired
    //BCryptPasswordEncoder密码加密对象
    private BCryptPasswordEncoder passwordEncoder;
    //UserDetails用户封装用户信息(认证和权限信息)
    @Override
    //重写UserDetailsService 接口中的 loadUserByUsername();方法,定义用来核对数据库数据和授于相应的权限
    public UserDetails loadUserByUsername(String username)
            throws UsernameNotFoundException {
        //1.基于用户名查询用户信息(用户名,用户状态,密码,....)
        //Userinfo userinfo=userMapper.selectUserByUsername(username);数据库用户信息查询操作简写了
        String encodedPassword=passwordEncoder.encode("123456");
        //2.查询用户权限信息(后面访问数据库)
        //这里先给几个假数据
        List<GrantedAuthority> authorities =
                AuthorityUtils.createAuthorityList(//这里的权限信息先这么写,后面讲
                        "sys:res:create", "sys:res:retrieve");
        //3.对用户信息进行封装
        return new User(username,encodedPassword,authorities);
    }
}

server:
  port: 9001
spring:
  application:
    name: sca-resource-gateway
  cloud:
    sentinel: #限流设计
      transport:
        dashboard: localhost:8180
      eager: true
    nacos:
      discovery:
        server-addr: localhost:8848
      config:
        server-addr: localhost:8848
        file-extension: yml
    gateway:
      discovery:
        locator:
          enabled: true
      routes:
        - id: router02
          uri: lb://sca-auth  #lb表示负载均衡,底层默认使用ribbon实现
          predicates: #定义请求规则(请求需要按照此规则设计)
            - Path=/auth/login/** #请求路径设计,单体架构
          filters:
            - StripPrefix=1 #转发之前去掉path中第一层路径

<!doctype html>
<html lang="en">
<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- Bootstrap CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="external nofollow"  rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
    <title>login</title>
</head>
<body>
<div class="container"id="app">
    <h3>Please Login</h3>
    <form>
        <div class="mb-3">
            <label for="usernameId" class="form-label">Username</label>
            <input type="text" v-model="username" class="form-control" id="usernameId" aria-describedby="emailHelp">
        </div>
        <div class="mb-3">
            <label for="passwordId" class="form-label">Password</label>
            <input type="password" v-model="password" class="form-control" id="passwordId">
        </div>
        <button type="button" @click="doLogin()" class="btn btn-primary">Submit</button>
    </form>
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<script>
    var vm=new Vue({
        el:"#app",//定义监控点，vue底层会基于此监控点在内存中构建dom树
        data:{ //此对象中定义页面上要操作的数据
            username:"",
            password:""
        },
        methods: {//此位置定义所有业务事件处理函数
            doLogin() {
                //1.定义url
                let url = "http://localhost:9001/auth/oauth/token"
                //2.定义参数
                let params = new URLSearchParams()
                params.append('username',this.username);
                params.append('password',this.password);
                params.append("client_id","gateway-client");
                params.append("grant_type","password");
                params.append("client_secret","123456");
                //3.发送异步请求
                axios.post(url, params).then((response) => {
                    debugger
                    console.log(response.data);
                    let result=response.data;
                    //
                    localStorage.setItem("accessToken",result.access_token);
                    location.href="/fileupload.html" rel="external nofollow" 
                })
            }
        }
    });
</script>
</body>
</html>

package com.jt.auth.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.store.JwtTokenStore;
/*
*创建jwt类型令牌
*构建令牌的构成有三部分:
* header(头部信息:令牌类型)/
* payload(数据信息-用户信息,权限信息)/
* SIGNATURE(签名信息-对header和payload部分加密)
* */
@Configuration //配置对象--系统启动时底层会产生代理对象,来初始化一些对象
public class TokenConfig {
    //定义令牌签发口令(暗号,规则),解密口令
    //当客户端在执行登录时,加入有携带这个信息,认证服务器可以签发令牌
    private String SIGNING_KEY = "auth"; 在对header和payload签名时,需要的一个口令
    //构建令牌生成器对象()
    @Bean
    public TokenStore tokenStore(){
        return new JwtTokenStore(jwtAccessTokenConverter());//令牌生成器(jwt转换器)
    }
    @Bean
     //Jwt转换器,将任何数据转换为jwt字符串
    public JwtAccessTokenConverter jwtAccessTokenConverter(){
        JwtAccessTokenConverter converter=new JwtAccessTokenConverter();
        //设置加密/解密口令
        converter.setSigningKey(SIGNING_KEY);
        return converter;
    }
}

    /**
     * 配置认证管理器(负责对客户输入的用户信息进行认证),在其他配置类中会用到这个对象
     * @return
     * @throws Exception
     */
    @Bean
    public AuthenticationManager authenticationManagerBean()
            throws Exception {
        return super.authenticationManagerBean();
    }

package com.jt.auth.config;
import lombok.AllArgsConstructor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.core.userdetails.UserDetailsService;
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;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.AuthorizationServerTokenServices;
import org.springframework.security.oauth2.provider.token.DefaultTokenServices;
import org.springframework.security.oauth2.provider.token.TokenEnhancerChain;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import java.util.Arrays;
/**
 * 完成所有配置的组装,在这个配置类中完成认证授权,JWT令牌签发等配置操作
 * 1)SpringSecurity (安全认证和授权)
 * 2)TokenConfig
 * 3)Oauth2(暂时不说)
 */
@AllArgsConstructor
@Configuration
@EnableAuthorizationServer //开启认证和授权服务
public class Oauth2Config extends AuthorizationServerConfigurerAdapter {
    //此对象负责完成认证管理
    private AuthenticationManager authenticationManager;
    //TokenStore负责完成令牌创建,信息读取
    private TokenStore tokenStore;
    //负责获取用户详情信息(username,password,client_id,grant_type,client_secret)
    //private ClientDetailsService clientDetailsService;
    //JWT令牌转换器(基于用户信息构建令牌,解析令牌)
    private JwtAccessTokenConverter jwtAccessTokenConverter;
    //密码加密匹配器对象
    private PasswordEncoder passwordEncoder;
    //负责获取用户信息信息
    private UserDetailsService userDetailsService;
    //设置认证端点的配置(/oauth/token),客户端通过这个路径获取JWT令牌
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints
        //配置认证管理器
        .authenticationManager(authenticationManager)
        //验证用户的方法获得用户详情
        .userDetailsService(userDetailsService)
        //要求提交认证使用post请求方式,提高安全性
        .allowedTokenEndpointRequestMethods(HttpMethod.POST,HttpMethod.GET)
        //要配置令牌的生成,由于令牌生成比较复杂,下面有方法实现
        .tokenServices(tokenService());//这个不配置,默认令牌为UUID.randomUUID().toString()
    }
    //定义令牌生成策略
    @Bean
    public AuthorizationServerTokenServices tokenService(){
        //这个方法的目标就是获得一个令牌生成器
        DefaultTokenServices services=new DefaultTokenServices();
        //支持令牌刷新策略(令牌有过期时间)
        services.setSupportRefreshToken(true);
        //设置令牌生成策略(tokenStore在TokenConfig配置了,本次我们应用JWT-定义了一种令牌格式)
        services.setTokenStore(tokenStore);
        //设置令牌增强(固定用法-令牌Payload部分允许添加扩展数据,例如用户权限信息)
        TokenEnhancerChain chain=new TokenEnhancerChain();
        chain.setTokenEnhancers(
                Arrays.asList(jwtAccessTokenConverter));
        //令牌增强对象设置到令牌生成
        services.setTokenEnhancer(chain);
        //设置令牌有效期
        services.setAccessTokenValiditySeconds(3600);//1小时
        //刷新令牌应用场景：一般在用户登录系统后，令牌快过期时，系统自动帮助用户刷新令牌，提高用户的体验感
        services.setRefreshTokenValiditySeconds(3600*72);//3天
        //配置客户端详情
        //services.setClientDetailsService(clientDetailsService);
        return services;
    }
    //设置客户端详情类似于用户详情
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
        //客户端id
        .withClient("gateway-client")
        //客户端秘钥
        .secret(passwordEncoder.encode("123456"))
        //设置权限
        .scopes("all")//all只是个名字而已和写abc效果相同
        //允许客户端进行的操作  里面的字符串千万不能写错
        .authorizedGrantTypes("password","refresh_token");
    }
    // 认证成功后的安全约束配置
    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        //认证通过后,允许客户端进行哪些操作
        security
        //公开oauth/token_key端点
        .tokenKeyAccess("permitAll()")
        //公开oauth/check_token端点
        .checkTokenAccess("permitAll()")
        //允许提交请求进行认证(申请令牌)
        .allowFormAuthenticationForClients();
    }
}

{
    "access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2MzAwNzYxMTAsInVzZXJfbmFtZSI6ImphY2siLCJhdXRob3JpdGllcyI6WyJzeXM6cmVzOmNyZWF0ZSIsInN5czpyZXM6cmV0cmlldmUiXSwianRpIjoiM2Q0MzExOTYtYmRkZi00Y2NhLWFmMDMtNWMzNGM4ZmJkNzQ3IiwiY2xpZW50X2lkIjoiZ2F0ZXdheS1jbGllbnQiLCJzY29wZSI6WyJhbGwiXX0.GnrlqsZMSdagDaRQDZWDLbY7I7KUlXQgyXATcXXS6FI",
    "token_type": "bearer",

package com.jt.resource.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.store.JwtTokenStore;
/*
*创建jwt类型令牌
*构建令牌的构成有三部分:
* header(头部信息:令牌类型)/
* payload(数据信息-用户信息,权限信息)/
* SIGNATURE(签名信息-对header和payload部分加密)
* */
@Configuration //配置对象--系统启动时底层会产生代理对象,来初始化一些对象
public class TokenConfig {
    //定义令牌签发口令(暗号,规则),解密口令
    //当客户端在执行登录时,加入有携带这个信息,认证服务器可以签发令牌
    //在对header和payload签名时
    private String SIGNING_KEY = "auth";
    //构建令牌生成器对象()
    @Bean
    public TokenStore tokenStore(){
        return new JwtTokenStore(jwtAccessTokenConverter());//令牌生成器(转换器)
    }
    //Jwt转换器,将任何数据转换为jwt字符串
    @Bean
    public JwtAccessTokenConverter jwtAccessTokenConverter(){
        JwtAccessTokenConverter converter=new JwtAccessTokenConverter();
        //设置加密/解密口令
        converter.setSigningKey(SIGNING_KEY);
        return converter;
    }
}

2.将对象转换为json
        //Gson-->toJson  (需要自己找依赖)
        //fastjson-->JSON (spring-cloud-starter-alibaba-sentinel)
        //jackson-->writeValueAsString (spring-boot-starter-web)

package com.jt.resource.config;
import com.alibaba.fastjson.JSON;
import com.google.gson.Gson;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
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;
import org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
/**
 * 资源服务器的配置,在这个对象
 * 1)JWT 令牌解析配置(客户端带着令牌访问资源时，要对令牌进行解析)
 * 2) 启动资源访问的授权配置(不是所有登陆用户可以访问所有资源)
 */
@Configuration
@EnableResourceServer 此注解会启动资源服务器的默认配置
@EnableGlobalMethodSecurity(prePostEnabled = true) //执行方法之前启动权限检查
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {
    @Autowired
    private TokenStore tokenStore;
    /**
     * token服务配置
     */
    @Override
    public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
        //super.configure(resources);
        //定义令牌生成策略，这里不是要创建令牌，是要解析令牌
        resources.tokenStore(tokenStore);
    }
    /**
     * 路由安全认证配置
     */
    @Override
    public void configure(HttpSecurity http) throws Exception {
        //super.configure(http);
        http.csrf().disable();//关闭跨域攻击
        //放行所有的资源访问(对资源的方问不做认证)
        http.authorizeRequests().anyRequest().permitAll();
        //http.authorizeRequests().mvcMatchers("/resource/**")
        //        .authenticated(); //假如没有认证就访问会报401异常
        //处理异常
        http.exceptionHandling()
                .accessDeniedHandler(accessDeniedHandler()); //403的异常处理  .拒绝访问的处理(AccessDeniedHandler类型对象)
    }
    @Bean
    public AccessDeniedHandler accessDeniedHandler() { //返回  AccessDeniedHandler对象
        return (request,response, exception)->{
            Map<String,Object> map = new HashMap<>();
            map.put("state", HttpServletResponse.SC_FORBIDDEN);//403
            map.put("message", "抱歉，没有这个资源");
            //1设置响应数据的编码
            response.setCharacterEncoding("utf-8");
            //2告诉浏览器响应数据的内容类型以及编码
            response.setContentType("application/json;charset=utf-8");
            //2.将对象转换为json
            //1.fastjson-->JSON (spring-cloud-starter-alibaba-sentinel)
            //String jsonStr= JSON.toJSONString(map);//fastjson
            //2.Gson-->toJson  (需要自己找依赖)
            Gson gson = new Gson();
            String jsonStr = gson.toJson(map);
            //jackson-->writeValueAsString (spring-boot-starter-web)
            //String jsonStr = new ObjectMapper().writeValueAsString(map);
            PrintWriter writer = response.getWriter();
            writer.println(jsonStr);
            writer.flush();
        };
    }
}

  @PreAuthorize("hasAuthority('sys:res:create')")
  @PostMapping("/upload/")
   public String uploadFile(MultipartFile uploadFile) throws IOException {
       ...
   }

 function upload(file){
        //定义一个表单
        let form=new FormData();
        //将图片添加到表单中
        form.append("uploadFile",file);
        let url="http://localhost:9000/sca/resource/upload/";
        //异步提交方式1
        axios.post(url,form,{headers:{"Authorization":"Bearer "+localStorage.getItem("accessToken")}})
             .then(function (response){
                 let result=response.data;
                 if(result.state==403){
                     alert(result.message);
                     return;
                 }
                 alert("upload ok");
             })
    }