RestTemplate 请求 UnknownHostException 当 spring-cloud-starter-

Question

restTemplate 在使用服务名称时抛出 UnknownHostException

我添加了豆子休息模板

@Configuration
public class SpringCloudConfig {
@LoadBalanced
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
}

我在父绒球中使用Spring-cloud Greenwich.SR3

依赖：

<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-oauth2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
</dependency>

YML ：

#OAuth
security:
oauth2:
resource:
loadBalanced: true
token-info-uri: http://FLY-AUTH/oauth/check_token
client:
client-id: sanke
client-secret: sanke
scope: all

以 yml 为单位的 OAuth 信息

Answer 1

修改资源服务器配置文件

@Configuration
@EnableResourceServer
@AllArgsConstructor
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {
private final EntryPointUnauthorizedHandler entryPointUnauthorizedHandler;
private final MyAccessDeniedHandler myAccessDeniedHandler;
private final RemoteTokenServices remoteTokenServices;
private final RestTemplate restTemplate;
@Override
public void configure(HttpSecurity http) throws Exception {
http
.csrf().disable()
.cors()
.and()
.authorizeRequests()
.antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
.antMatchers("/auth/**").permitAll()
.anyRequest().permitAll()
.and()
.exceptionHandling()
.authenticationEntryPoint(entryPointUnauthorizedHandler)
.accessDeniedHandler(myAccessDeniedHandler);
}
@Override
public void configure(ResourceServerSecurityConfigurer resources) {
DefaultAccessTokenConverter accessTokenConverter = new DefaultAccessTokenConverter();
UserAuthenticationConverter userTokenConverter = new FlyUserAuthenticationConverter();
accessTokenConverter.setUserTokenConverter(userTokenConverter);
//Config restTemplete
remoteTokenServices.setRestTemplate(restTemplate);
remoteTokenServices.setAccessTokenConverter(accessTokenConverter);
resources.tokenServices(remoteTokenServices);
resources.authenticationEntryPoint(entryPointUnauthorizedHandler);
}
}