详解spring cloud ouath2中的资源服务器

资源服务器就是业务服务 如用户服务，订单服务等 第三方需要到资源服务器调用接口获取资源

ResourceServerConfig

ResourceServerConfig是资源服务器的核心配置 用于验证token 与网关配置相似

其中.antMatchers("/**").access("#oauth2.hasScope('user')") 需要oauth_client_details表的scope配合 意思是访问所有资源 需要客户端有scope需要有user

@Configuration
@EnableResourceServer // 标识为资源服务器，请求服务中的资源，就要带着token过来，找不到token或token是无效访问不了资源
@EnableGlobalMethodSecurity(prePostEnabled = true) // 开启方法级别权限控制
public class ResourceServerConfig extends ResourceServerConfigurerAdapter implements CommandLineRunner {

private final static Logger logger = LoggerFactory.getLogger(ResourceServerConfig.class);

public static final String RESOURCE_ID = "user";

/**
* 权限不足返回给前端json
*/
@Autowired
private CustomAccessDeniedHandlerConfig customAccessDeniedHandlerConfig;

@Autowired
private TokenStore tokenStore;

/**
* token无效返回前段json
*/
@Autowired
private AuthExceptionEntryPointConfig authExceptionEntryPointConfig;

@Override
public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
// 当前资源服务器的资源id，认证服务会认证客户端有没有访问这个资源id的权限，有则可以访问当前服务
resources.tokenStore(tokenStore).resourceId(RESOURCE_ID)
 // token无效异常的处理
 .authenticationEntryPoint(authExceptionEntryPointConfig)
 // 权限不足异常处理类
 .accessDeniedHandler(customAccessDeniedHandlerConfig)
 // 会话机制stateless开启
 .stateless(true);
}

@Override
public void configure(HttpSecurity http) throws Exception {
http.sessionManagement()
 // SpringSecurity不会使用也不会创建HttpSession实例 因为整个oauth2后使用token
 .sessionCreationPolicy(SessionCreationPolicy.STATELESS).and().authorizeRequests()
 // 开放swagger请求
 .antMatchers("/swagger-ui.html", "/webjars/**", "/swagger-resources/**","/v2/**").permitAll()
 // 所有请求，都需要有all范围（scope）
 .antMatchers("/**").access("#oauth2.hasScope('user')").
 anyRequest().authenticated().and().csrf()
 .disable();
}

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

AuthExceptionEntryPointConfig,CustomAccessDeniedHandlerConfig

用于异常返回前端json

@Component
public class CustomAccessDeniedHandlerConfig implements AccessDeniedHandler {

@Override
public void handle(HttpServletRequest request, HttpServletResponse response,
AccessDeniedException accessDeniedException) throws IOException, ServletException {
response.setStatus(HttpStatus.OK.value());
response.setHeader("Content-Type", "application/json;charset=UTF-8");
try {
 Result result = new Result(403, "权限不足");
 response.getWriter().write(new ObjectMapper().writeValueAsString(result));
} catch (IOException e) {
 e.printStackTrace();
}
}
}

@Component
public class AuthExceptionEntryPointConfig implements AuthenticationEntryPoint{

private final static Logger logger = LoggerFactory.getLogger(AuthExceptionEntryPointConfig.class);

@Value("${security.redirect-url}")
private String redirectUrl;

@Override
public void commence(HttpServletRequest request, HttpServletResponse response,
AuthenticationException authException) {
Throwable cause = authException.getCause();
response.setStatus(HttpStatus.OK.value());
response.setHeader("Content-Type", "application/json;charset=UTF-8");
Result result;
try {
 if (cause instanceof InvalidTokenException) {
 result = new Result(402, "认证失败,无效或过期token");
 response.getWriter().write(new ObjectMapper().writeValueAsString(result));
 } else {
 result = new Result(401, "认证失败,没有携带token");
 response.sendRedirect(redirectUrl);
 }

} catch (IOException e) {
 e.printStackTrace();
}
}
}

TokenConfig

不多说

@Configuration
public class TokenConfig{

/**
* 使用redis存储
*/
@Autowired
private RedisConnectionFactory redisConnectionFactory;

@Bean
public TokenStore tokenStore() {
return new RedisTokenStore(redisConnectionFactory);
}

}

application.yml

那么小伙伴又问了 既然网关验证token的有效性 那么资源服务器是不是就不用验证啦 答案是否 因为不添加配置 会报错 同样需要在application中添加以下配置

其他配置也spirng boot为准 这里不多说

security:
oauth2:
client:
client-id: user-vue
client-secret: 1234
resource:
token-info-uri: http://localhost:8001/oauth/check_token

来源：https://blog.csdn.net/qq_20143059/article/details/113766105