springboot单点登录技术方案，单点登录SSO解决方案之SpringSecurity

springboot单点登录技术方案，单点登录SSO解决方案之SpringSecurity基本原理：同时生成两把密钥：私钥和公钥，私钥隐秘保存，公钥可以下发给信任客户端私钥加密，持有私钥或公钥才可以解密公钥加密，持有私钥才可解密优点：安全，难以破解缺点：算法比较耗时，为了安全，可以接受历史：三位数学家Rivest、Shamir 和 Adleman 设计了一种算法，可以实现非对称加密。这种算法用他们三个人的名字缩写：RSA。  从JWT生成的token组成上来看，要想避免token被伪造，主要就得看签名部分了，而签名部分又有三部分组成，其中头部和载荷的base64编码，几乎是透明的，毫无安全性可言，那么最终守护token安全的重担就落在了加入的盐上面了！试想：如果生成token所用的盐与解析token时加入的盐是一样的。岂不是类似于中国人民银行把人民币防伪技术公开了？大家可以用这个盐来解析token，就能用来伪造token。这时，我们就需要对盐采用非对称加密的方式进行加密，以达到

  通过前面几天文章我们详细的介绍了SpringSecurity的使用，本文我们来看下，结合JWT来实现单点登录操作。

一、什么是单点登陆

  单点登录（Single Sign On），简称为 SSO，是目前比较流行的企业业务整合的解决方案之一。SSO的定义是在多个应用系统中，用户只需要登录一次就可以访问所有相互信任的应用系统

二、简单的运行机制

  单点登录的机制其实是比较简单的，用一个现实中的例子做比较。某公园内部有许多独立的景点，游客可以在各个景点门口单独买票。对于需要游玩所有的景点的游客，这种买票方式很不方便，需要在每个景点门口排队买票，钱包拿 进拿出的，容易丢失，很不安全。于是绝大多数游客选择在大门口买一张通票（也叫套票），就可以玩遍所有的景点而不需要重新再买票。他们只需要在每个景点门 口出示一下刚才买的套票就能够被允许进入每个独立的景点。
单点登录的机制也一样，如下图所示，

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用户认证：这一环节主要是用户向认证服务器发起认证请求，认证服务器给用户返回一个成功的令牌token，主要在认证服务器中完成，即图中的认证系统，注意认证系统只能有一个。
身份校验：这一环节是用户携带token去访问其他服务器时，在其他服务器中要对token的真伪进行检验，主要在资源服务器中完成，即图中的应用系统2 3

三、JWT介绍概念说明

  从分布式认证流程中，我们不难发现，这中间起最关键作用的就是token，token的安全与否，直接关系到系统的健壮性，这里我们选择使用JWT来实现token的生成和校验。
  JWT，全称JSON Web Token，官网地址https://jwt.io，是一款出色的分布式身份校验方案。可以生成token，也可以解析检验token。

JWT生成的token由三部分组成：

头部：主要设置一些规范信息，签名部分的编码格式就在头部中声明。
载荷：token中存放有效信息的部分，比如用户名，用户角色，过期时间等，但是不要放密码，会泄露！
签名：将头部与载荷分别采用base64编码后，用“.”相连，再加入盐，最后使用头部声明的编码类型进行编码，就得到了签名。

JWT生成token的安全性分析

  从JWT生成的token组成上来看，要想避免token被伪造，主要就得看签名部分了，而签名部分又有三部分组成，其中头部和载荷的base64编码，几乎是透明的，毫无安全性可言，那么最终守护token安全的重担就落在了加入的盐上面了！试想：如果生成token所用的盐与解析token时加入的盐是一样的。岂不是类似于中国人民银行把人民币防伪技术公开了？大家可以用这个盐来解析token，就能用来伪造token。这时，我们就需要对盐采用非对称加密的方式进行加密，以达到生成token与校验token方所用的盐不一致的安全效果！

非对称加密RSA介绍

基本原理：同时生成两把密钥：私钥和公钥，私钥隐秘保存，公钥可以下发给信任客户端
私钥加密，持有私钥或公钥才可以解密
公钥加密，持有私钥才可解密
优点：安全，难以破解
缺点：算法比较耗时，为了安全，可以接受
历史：三位数学家Rivest、Shamir 和 Adleman 设计了一种算法，可以实现非对称加密。这种算法用他们三个人的名字缩写：RSA。

四、SpringSecurity整合JWT1.认证思路分析

  SpringSecurity主要是通过过滤器来实现功能的！我们要找到SpringSecurity实现认证和校验身份的过滤器！

回顾集中式认证流程

用户认证：
  使用UsernamePasswordAuthenticationFilter过滤器中attemptAuthentication方法实现认证功能，该过滤器父类中successfulAuthentication方法实现认证成功后的操作。
身份校验：
  使用BasicAuthenticationFilter过滤器中doFilterInternal方法验证是否登录，以决定能否进入后续过滤器。

分析分布式认证流程

用户认证：
  由于分布式项目，多数是前后端分离的架构设计，我们要满足可以接受异步post的认证请求参数，需要修改UsernamePasswordAuthenticationFilter过滤器中attemptAuthentication方法，让其能够接收请求体。
  另外，默认successfulAuthentication方法在认证通过后，是把用户信息直接放入session就完事了，现在我们需要修改这个方法，在认证通过后生成token并返回给用户。
身份校验：
  原来BasicAuthenticationFilter过滤器中doFilterInternal方法校验用户是否登录，就是看session中是否有用户信息，我们要修改为，验证用户携带的token是否合法，并解析出用户信息，交给SpringSecurity，以便于后续的授权功能可以正常使用。

2.具体实现

  为了演示单点登录的效果，我们设计如下项目结构

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2.1父工程创建

  因为本案例需要创建多个系统，所以我们使用maven聚合工程来实现，首先创建一个父工程，导入springboot的父依赖即可

<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.3.RELEASE</version> <relativePath/> </parent> 2.2公共工程创建

  然后创建一个common工程，其他工程依赖此系统

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导入JWT相关的依赖

<dependencies> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt-api</artifactId> <version>0.10.7</version> </dependency> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt-impl</artifactId> <version>0.10.7</version> <scope>runtime</scope> </dependency> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt-jackson</artifactId> <version>0.10.7</version> <scope>runtime</scope> </dependency> <!--jackson包--> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.9</version> </dependency> <!--日志包--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </dependency> <dependency> <groupId>joda-time</groupId> <artifactId>joda-time</artifactId> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> </dependency> </dependencies>

创建相关的工具类

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Payload

/** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 10:28 */ @Data public class Payload <T>{ private String id; private T userInfo; private Date expiration; }

JsonUtils

package com.dpb.utils; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.core.type.TypeReference; import com.fasterxml.jackson.databind.ObjectMapper; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.IOException; import java.util.List; import java.util.Map; /** * @author: 波波烤鸭 **/ public class JsonUtils { public static final ObjectMapper mapper = new ObjectMapper(); private static final Logger logger = LoggerFactory.getLogger(JsonUtils.class); public static String toString(Object obj) { if (obj == null) { return null; } if (obj.getClass() == String.class) { return (String) obj; } try { return mapper.writeValueAsString(obj); } catch (JsonProcessingException e) { logger.error("json序列化出错：" obj e); return null; } } public static <T> T toBean(String json Class<T> tClass) { try { return mapper.readValue(json tClass); } catch (IOException e) { logger.error("json解析出错：" json e); return null; } } public static <E> List<E> toList(String json Class<E> eClass) { try { return mapper.readValue(json mapper.getTypeFactory().constructCollectionType(List.class eClass)); } catch (IOException e) { logger.error("json解析出错：" json e); return null; } } public static <K V> Map<K V> toMap(String json Class<K> kClass Class<V> vClass) { try { return mapper.readValue(json mapper.getTypeFactory().constructMapType(Map.class kClass vClass)); } catch (IOException e) { logger.error("json解析出错：" json e); return null; } } public static <T> T nativeRead(String json TypeReference<T> type) { try { return mapper.readValue(json type); } catch (IOException e) { logger.error("json解析出错：" json e); return null; } } }

JwtUtils

package com.dpb.utils; import com.dpb.domain.Payload; import io.jsonwebtoken.Claims; import io.jsonwebtoken.Jws; import io.jsonwebtoken.Jwts; import io.jsonwebtoken.SignatureAlgorithm; import org.joda.time.DateTime; import java.security.PrivateKey; import java.security.PublicKey; import java.util.Base64; import java.util.UUID; /** * @author: 波波烤鸭 * 生成token以及校验token相关方法 */ public class JwtUtils { private static final String JWT_PAYLOAD_USER_KEY = "user"; /** * 私钥加密token * * @param userInfo 载荷中的数据 * @param privateKey 私钥 * @param expire 过期时间，单位分钟 * @return JWT */ public static String generateTokenExpireInMinutes(Object userInfo PrivateKey privateKey int expire) { return Jwts.builder() .claim(JWT_PAYLOAD_USER_KEY JsonUtils.toString(userInfo)) .setId(createJTI()) .setExpiration(DateTime.now().plusMinutes(expire).toDate()) .signWith(privateKey SignatureAlgorithm.RS256) .compact(); } /** * 私钥加密token * * @param userInfo 载荷中的数据 * @param privateKey 私钥 * @param expire 过期时间，单位秒 * @return JWT */ public static String generateTokenExpireInSeconds(Object userInfo PrivateKey privateKey int expire) { return Jwts.builder() .claim(JWT_PAYLOAD_USER_KEY JsonUtils.toString(userInfo)) .setId(createJTI()) .setExpiration(DateTime.now().plusSeconds(expire).toDate()) .signWith(privateKey SignatureAlgorithm.RS256) .compact(); } /** * 公钥解析token * * @param token 用户请求中的token * @param publicKey 公钥 * @return Jws<Claims> */ private static Jws<Claims> parserToken(String token PublicKey publicKey) { return Jwts.parser().setSigningKey(publicKey).parseClaimsJws(token); } private static String createJTI() { return new String(Base64.getEncoder().encode(UUID.randomUUID().toString().getBytes())); } /** * 获取token中的用户信息 * * @param token 用户请求中的令牌 * @param publicKey 公钥 * @return 用户信息 */ public static <T> Payload<T> getInfoFromToken(String token PublicKey publicKey Class<T> userType) { Jws<Claims> claimsJws = parserToken(token publicKey); Claims body = claimsJws.getBody(); Payload<T> claims = new Payload<>(); claims.setId(body.getId()); claims.setUserInfo(JsonUtils.toBean(body.get(JWT_PAYLOAD_USER_KEY).toString() userType)); claims.setExpiration(body.getExpiration()); return claims; } /** * 获取token中的载荷信息 * * @param token 用户请求中的令牌 * @param publicKey 公钥 * @return 用户信息 */ public static <T> Payload<T> getInfoFromToken(String token PublicKey publicKey) { Jws<Claims> claimsJws = parserToken(token publicKey); Claims body = claimsJws.getBody(); Payload<T> claims = new Payload<>(); claims.setId(body.getId()); claims.setExpiration(body.getExpiration()); return claims; } }

RsaUtils

package com.dpb.utils; import java.io.File; import java.io.IOException; import java.nio.file.Files; import java.security.*; import java.security.spec.InvalidKeySpecException; import java.security.spec.PKCS8EncodedKeySpec; import java.security.spec.X509EncodedKeySpec; import java.util.Base64; /** * @author 波波烤鸭 */ public class RsaUtils { private static final int DEFAULT_KEY_SIZE = 2048; /** * 从文件中读取公钥 * * @param filename 公钥保存路径，相对于classpath * @return 公钥对象 * @throws Exception */ public static PublicKey getPublicKey(String filename) throws Exception { byte[] bytes = readFile(filename); return getPublicKey(bytes); } /** * 从文件中读取密钥 * * @param filename 私钥保存路径，相对于classpath * @return 私钥对象 * @throws Exception */ public static PrivateKey getPrivateKey(String filename) throws Exception { byte[] bytes = readFile(filename); return getPrivateKey(bytes); } /** * 获取公钥 * * @param bytes 公钥的字节形式 * @return * @throws Exception */ private static PublicKey getPublicKey(byte[] bytes) throws Exception { bytes = Base64.getDecoder().decode(bytes); X509EncodedKeySpec spec = new X509EncodedKeySpec(bytes); KeyFactory factory = KeyFactory.getInstance("RSA"); return factory.generatePublic(spec); } /** * 获取密钥 * * @param bytes 私钥的字节形式 * @return * @throws Exception */ private static PrivateKey getPrivateKey(byte[] bytes) throws NoSuchAlgorithmException InvalidKeySpecException { bytes = Base64.getDecoder().decode(bytes); PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(bytes); KeyFactory factory = KeyFactory.getInstance("RSA"); return factory.generatePrivate(spec); } /** * 根据密文，生存rsa公钥和私钥 并写入指定文件 * * @param publicKeyFilename 公钥文件路径 * @param privateKeyFilename 私钥文件路径 * @param secret 生成密钥的密文 */ public static void generateKey(String publicKeyFilename String privateKeyFilename String secret int keySize) throws Exception { KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA"); SecureRandom secureRandom = new SecureRandom(secret.getBytes()); keyPairGenerator.initialize(Math.max(keySize DEFAULT_KEY_SIZE) secureRandom); KeyPair keyPair = keyPairGenerator.genKeyPair(); // 获取公钥并写出 byte[] publicKeyBytes = keyPair.getPublic().getEncoded(); publicKeyBytes = Base64.getEncoder().encode(publicKeyBytes); writeFile(publicKeyFilename publicKeyBytes); // 获取私钥并写出 byte[] privateKeyBytes = keyPair.getPrivate().getEncoded(); privateKeyBytes = Base64.getEncoder().encode(privateKeyBytes); writeFile(privateKeyFilename privateKeyBytes); } private static byte[] readFile(String fileName) throws Exception { return Files.readAllBytes(new File(fileName).toPath()); } private static void writeFile(String destPath byte[] bytes) throws IOException { File dest = new File(destPath); if (!dest.exists()) { dest.createNewFile(); } Files.write(dest.toPath() bytes); } }

在通用子模块中编写测试类生成rsa公钥和私钥

/** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 11:08 */ public class JwtTest { private String privateKey = "c:/tools/auth_key/id_key_rsa"; private String publicKey = "c:/tools/auth_key/id_key_rsa.pub"; @Test public void test1() throws Exception{ RsaUtils.generateKey(publicKey privateKey "dpb" 1024); } }

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2.3认证系统创建

  接下来我们创建我们的认证服务。

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导入相关的依赖

<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>
<artifactId>security-jwt-common</artifactId>
<groupId>com.dpb</groupId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.47</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
</dependencies>

创建配置文件

spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/srm
username: root
password: 123456
type: com.alibaba.druid.pool.DruidDataSource
mybatis:
type-aliases-package: com.dpb.domain
mapper-locations: classpath:mapper/*.xml
logging:
level:
com.dpb: debug
rsa:
key:
pubKeyFile: c:\tools\auth_key\id_key_rsa.pub
priKeyFile: c:\tools\auth_key\id_key_rsa

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提供公钥私钥的配置类

package com.dpb.config; import com.dpb.utils.RsaUtils; import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Configuration; import javax.annotation.PostConstruct; import java.security.PrivateKey; import java.security.PublicKey; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 11:25 */ @Data @ConfigurationProperties(prefix = "rsa.key") public class RsaKeyProperties { private String pubKeyFile; private String priKeyFile; private PublicKey publicKey; private PrivateKey privateKey; /** * 系统启动的时候触发 * @throws Exception */ @PostConstruct public void createRsaKey() throws Exception { publicKey = RsaUtils.getPublicKey(pubKeyFile); privateKey = RsaUtils.getPrivateKey(priKeyFile); } } 创建启动类

/** * @program: springboot-54-security-jwt-demo * @description: 启动类 * @author: 波波烤鸭 * @create: 2019-12-03 11:23 */ @SpringBootApplication @MapperScan("com.dpb.mapper") @EnableConfigurationProperties(RsaKeyProperties.class) public class App { public static void main(String[] args) { SpringApplication.run(App.class args); } } 完成数据认证的逻辑

pojo

package com.dpb.domain; import com.fasterxml.jackson.annotation.JsonIgnore; import lombok.Data; import org.springframework.security.core.GrantedAuthority; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 15:21 */ @Data public class RolePojo implements GrantedAuthority { private Integer id; private String roleName; private String roleDesc; @JsonIgnore @Override public String getAuthority() { return roleName; } }

package com.dpb.domain; import com.fasterxml.jackson.annotation.JsonIgnore; import lombok.Data; import org.springframework.security.core.GrantedAuthority; import org.springframework.security.core.authority.SimpleGrantedAuthority; import org.springframework.security.core.userdetails.UserDetails; import java.util.ArrayList; import java.util.Collection; import java.util.List; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 11:33 */ @Data public class UserPojo implements UserDetails { private Integer id; private String username; private String password; private Integer status; private List<RolePojo> roles; @JsonIgnore @Override public Collection<? extends GrantedAuthority> getAuthorities() { List<SimpleGrantedAuthority> auth = new ArrayList<>(); auth.add(new SimpleGrantedAuthority("ADMIN")); return auth; } @Override public String getPassword() { return this.password; } @Override public String getUsername() { return this.username; } @JsonIgnore @Override public boolean isAccountNonExpired() { return true; } @JsonIgnore @Override public boolean isAccountNonLocked() { return true; } @JsonIgnore @Override public boolean isCredentialsNonExpired() { return true; } @JsonIgnore @Override public boolean isEnabled() { return true; } }

Mapper接口

public interface UserMapper { public UserPojo queryByUserName(@Param("userName") String userName); }

Mapper映射文件

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.dpb.mapper.UserMapper"> <select id="queryByUserName" resultType="UserPojo"> select * from t_user where username = #{userName} </select> </mapper>

Service

public interface UserService extends UserDetailsService { }

@Service @Transactional public class UserServiceImpl implements UserService { @Autowired private UserMapper mapper; @Override public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException { UserPojo user = mapper.queryByUserName(s); return user; } } 自定义认证过滤器

package com.dpb.filter; import com.dpb.config.RsaKeyProperties; import com.dpb.domain.RolePojo; import com.dpb.domain.UserPojo; import com.dpb.utils.JwtUtils; import com.fasterxml.jackson.databind.ObjectMapper; import net.bytebuddy.agent.builder.AgentBuilder; import org.springframework.security.authentication.AuthenticationManager; import org.springframework.security.authentication.UsernamePasswordAuthenticationToken; import org.springframework.security.core.Authentication; import org.springframework.security.core.AuthenticationException; 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.web.authentication.UsernamePasswordAuthenticationFilter; import javax.servlet.FilterChain; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 11:57 */ public class TokenLoginFilter extends UsernamePasswordAuthenticationFilter { private AuthenticationManager authenticationManager; private RsaKeyProperties prop; public TokenLoginFilter(AuthenticationManager authenticationManager RsaKeyProperties prop) { this.authenticationManager = authenticationManager; this.prop = prop; } public Authentication attemptAuthentication(HttpServletRequest request HttpServletResponse response) throws AuthenticationException { try { UserPojo sysUser = new ObjectMapper().readValue(request.getInputStream() UserPojo.class); UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(sysUser.getUsername() sysUser.getPassword()); return authenticationManager.authenticate(authRequest); }catch (Exception e){ try { response.setContentType("application/json;charset=utf-8"); response.setStatus(HttpServletResponse.SC_UNAUTHORIZED); PrintWriter out = response.getWriter(); Map resultMap = new HashMap(); resultMap.put("code" HttpServletResponse.SC_UNAUTHORIZED); resultMap.put("msg" "用户名或密码错误！"); out.write(new ObjectMapper().writeValueAsString(resultMap)); out.flush(); out.close(); }catch (Exception outEx){ outEx.printStackTrace(); } throw new RuntimeException(e); } } public void successfulAuthentication(HttpServletRequest request HttpServletResponse response FilterChain chain Authentication authResult) throws IOException ServletException { UserPojo user = new UserPojo(); user.setUsername(authResult.getName()); user.setRoles((List<RolePojo>)authResult.getAuthorities()); String token = JwtUtils.generateTokenExpireInMinutes(user prop.getPrivateKey() 24 * 60); response.addHeader("Authorization" "Bearer " token); try { response.setContentType("application/json;charset=utf-8"); response.setStatus(HttpServletResponse.SC_OK); PrintWriter out = response.getWriter(); Map resultMap = new HashMap(); resultMap.put("code" HttpServletResponse.SC_OK); resultMap.put("msg" "认证通过！"); out.write(new ObjectMapper().writeValueAsString(resultMap)); out.flush(); out.close(); }catch (Exception outEx){ outEx.printStackTrace(); } } } 自定义校验token的过滤器

package com.dpb.filter; import com.dpb.config.RsaKeyProperties; import com.dpb.domain.Payload; import com.dpb.domain.UserPojo; import com.dpb.utils.JwtUtils; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.security.authentication.AuthenticationManager; import org.springframework.security.authentication.UsernamePasswordAuthenticationToken; import org.springframework.security.core.context.SecurityContextHolder; import org.springframework.security.web.authentication.www.BasicAuthenticationFilter; import javax.servlet.FilterChain; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; import java.io.PrintWriter; import java.util.HashMap; import java.util.Map; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 12:39 */ public class TokenVerifyFilter extends BasicAuthenticationFilter { private RsaKeyProperties prop; public TokenVerifyFilter(AuthenticationManager authenticationManager RsaKeyProperties prop) { super(authenticationManager); this.prop = prop; } public void doFilterInternal(HttpServletRequest request HttpServletResponse response FilterChain chain) throws IOException ServletException { String header = request.getHeader("Authorization"); if (header == null || !header.startsWith("Bearer ")) { //如果携带错误的token，则给用户提示请登录！ chain.doFilter(request response); response.setContentType("application/json;charset=utf-8"); response.setStatus(HttpServletResponse.SC_FORBIDDEN); PrintWriter out = response.getWriter(); Map resultMap = new HashMap(); resultMap.put("code" HttpServletResponse.SC_FORBIDDEN); resultMap.put("msg" "请登录！"); out.write(new ObjectMapper().writeValueAsString(resultMap)); out.flush(); out.close(); } else { //如果携带了正确格式的token要先得到token String token = header.replace("Bearer " ""); //验证tken是否正确 Payload<UserPojo> payload = JwtUtils.getInfoFromToken(token prop.getPublicKey() UserPojo.class); UserPojo user = payload.getUserInfo(); if(user!=null){ UsernamePasswordAuthenticationToken authResult = new UsernamePasswordAuthenticationToken(user.getUsername() null user.getAuthorities()); SecurityContextHolder.getContext().setAuthentication(authResult); chain.doFilter(request response); } } } } 编写SpringSecurity的配置类

package com.dpb.config; import com.dpb.filter.TokenLoginFilter; import com.dpb.filter.TokenVerifyFilter; import com.dpb.service.UserService; 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.authentication.builders.AuthenticationManagerBuilder; import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity; 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; import org.springframework.security.config.http.SessionCreationPolicy; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 12:41 */ @Configuration @EnableWebSecurity @EnableGlobalMethodSecurity(securedEnabled=true) public class WebSecurityConfig extends WebSecurityConfigurerAdapter { @Autowired private UserService userService; @Autowired private RsaKeyProperties prop; @Bean public BCryptPasswordEncoder passwordEncoder(){ return new BCryptPasswordEncoder(); } //指定认证对象的来源 public void configure(AuthenticationManagerBuilder auth) throws Exception { auth.userDetailsService(userService).passwordEncoder(passwordEncoder()); } //SpringSecurity配置信息 public void configure(HttpSecurity http) throws Exception { http.csrf() .disable() .authorizeRequests() .antMatchers("/user/query").hasAnyRole("ADMIN") .anyRequest() .authenticated() .and() .addFilter(new TokenLoginFilter(super.authenticationManager() prop)) .addFilter(new TokenVerifyFilter(super.authenticationManager() prop)) .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS); } } 启动服务测试

启动服务

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通过Postman来访问测试

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根据token信息我们访问其他资源

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2.4资源系统创建

说明
资源服务可以有很多个，这里只拿产品服务为例，记住，资源服务中只能通过公钥验证认证。不能签发token！创建产品服务并导入jar包根据实际业务导包即可，咱们就暂时和认证服务一样了。

接下来我们再创建一个资源服务

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导入相关的依赖

<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> <artifactId>security-jwt-common</artifactId> <groupId>com.dpb</groupId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.1.0</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> </dependencies> 编写产品服务配置文件

切记这里只能有公钥地址！

server: port: 9002 spring: datasource: driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://localhost:3306/srm username: root password: 123456 type: com.alibaba.druid.pool.DruidDataSource mybatis: type-aliases-package: com.dpb.domain mapper-locations: classpath:mapper/*.xml logging: level: com.dpb: debug rsa: key: pubKeyFile: c:\tools\auth_key\id_key_rsa.pub 编写读取公钥的配置类

package com.dpb.config; import com.dpb.utils.RsaUtils; import lombok.Data; import org.springframework.boot.context.properties.ConfigurationProperties; import javax.annotation.PostConstruct; import java.security.PrivateKey; import java.security.PublicKey; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 11:25 */ @Data @ConfigurationProperties(prefix = "rsa.key") public class RsaKeyProperties { private String pubKeyFile; private PublicKey publicKey; /** * 系统启动的时候触发 * @throws Exception */ @PostConstruct public void createRsaKey() throws Exception { publicKey = RsaUtils.getPublicKey(pubKeyFile); } } 编写启动类

package com.dpb; import com.dpb.config.RsaKeyProperties; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.context.properties.EnableConfigurationProperties; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 17:23 */ @SpringBootApplication @MapperScan("com.dpb.mapper") @EnableConfigurationProperties(RsaKeyProperties.class) public class App { public static void main(String[] args) { SpringApplication.run(App.class args); } } 复制认证服务中，用户对象，角色对象和校验认证的接口

复制认证服务中的相关内容即可

复制认证服务中SpringSecurity配置类做修改

package com.dpb.config; import com.dpb.filter.TokenVerifyFilter; import com.dpb.service.UserService; 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.authentication.builders.AuthenticationManagerBuilder; import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity; 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; import org.springframework.security.config.http.SessionCreationPolicy; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 12:41 */ @Configuration @EnableWebSecurity @EnableGlobalMethodSecurity(securedEnabled=true) public class WebSecurityConfig extends WebSecurityConfigurerAdapter { @Autowired private UserService userService; @Autowired private RsaKeyProperties prop; @Bean public BCryptPasswordEncoder passwordEncoder(){ return new BCryptPasswordEncoder(); } //指定认证对象的来源 public void configure(AuthenticationManagerBuilder auth) throws Exception { auth.userDetailsService(userService).passwordEncoder(passwordEncoder()); } //SpringSecurity配置信息 public void configure(HttpSecurity http) throws Exception { http.csrf() .disable() .authorizeRequests() //.antMatchers("/user/query").hasAnyRole("USER") .anyRequest() .authenticated() .and() .addFilter(new TokenVerifyFilter(super.authenticationManager() prop)) // 禁用掉session .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS); } }

去掉“增加自定义认证过滤器”即可！

编写产品处理器

package com.dpb.controller; import org.springframework.security.access.annotation.Secured; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; /** * @program: springboot-54-security-jwt-demo * @description: * @author: 波波烤鸭 * @create: 2019-12-03 11:55 */ @RestController @RequestMapping("/user") public class UserController { @RequestMapping("/query") public String query(){ return "success"; } @RequestMapping("/update") public String update(){ return "update"; } } 测试

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搞定~