Java Code Examples for org.springframework.security.oauth2.client.OAuth2RestTemplate

public void testConnectDirectlyToResourceServer() throws Exception {
    ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
    resource.setAccessTokenUri(tokenUrl);
    resource.setId("microservice-test");
    resource.setClientId("oauthClient1");
    resource.setClientSecret("oauthClient1Password");

    resource.setGrantType("password");

    resource.setScope(Arrays.asList("openid"));

    resource.setUsername("[email protected]");
    resource.setPassword("user1");
    OAuth2RestTemplate template = new OAuth2RestTemplate(resource);
    logger.info(" CALLING: " + baseUrl+"/api");

    String result = template.getForObject(baseUrl+"/api", String.class);

    System.err.println(result);
    assertEquals("Hello, Trusted User marissa", result);
}
 

@Test
public void testOAuthService() {	
       ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
       resource.setUsername("guest");
       resource.setPassword("guest123");
       resource.setAccessTokenUri("http://localhost:8080/oauth/token");
       resource.setClientId("trustedclient");
       resource.setClientSecret("trustedclient123");
       resource.setGrantType("password");
       resource.setScope(Arrays.asList(new String[]{"read","write","trust"}));
 
       DefaultOAuth2ClientContext clientContext = new DefaultOAuth2ClientContext();
       OAuth2RestTemplate restTemplate = new OAuth2RestTemplate(resource, clientContext);

       Greet greet = restTemplate.getForObject("http://localhost:8080", Greet.class);

       Assert.assertEquals("Hello World!", greet.getMessage());
}
 

@Bean
public OAuth2RestTemplate oauth2RestTemplate(OAuth2ProtectedResourceDetails details) {
  OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(details);

  LOG.debug("Begin OAuth2RestTemplate: getAccessToken");
  /* To validate if required configurations are in place during startup */
  oAuth2RestTemplate.getAccessToken();
  LOG.debug("End OAuth2RestTemplate: getAccessToken");
  return oAuth2RestTemplate;
}
 

@Test
public void testClientCredentialsRestTemplate() throws Exception {

    ClientCredentialsResourceDetails details = new ClientCredentialsResourceDetails();
     details.setId("4");
    details.setClientId(client_id);
    details.setClientSecret(client_secret);
    details.setAccessTokenUri(access_token_uri);
   // details.setScope(Arrays.asList("read write"));
    OAuth2RestTemplate operations = new OAuth2RestTemplate(details,new DefaultOAuth2ClientContext());
   // OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(resourceDetails);
    operations.setAccessTokenProvider(new ClientCredentialsAccessTokenProvider());

  //  OAuth2RestTemplate restTemplate = new OAuth2RestTemplate(resourceDetails(),oAuth2ClientContext());
    DefaultOAuth2AccessToken token=(DefaultOAuth2AccessToken)operations.getAccessToken();
    token.setTokenType("Bearer");

    System.out.println("client_id : " + client_id);
    System.out.println("source_url : " + source_url);

  //  OAuth2RestOperations operations = restTemplate.clientCredentialsRestTemplate(client_id, client_secret, access_token_uri, scopes);  // getForObject 发送 get 方法
    System.out.println(JSON.toJSONString(operations.getForObject(source_url, JsonNode.class)));  // getForObject 发送 get 方法

}
 

/**
 * 该方式没有实验成功，设置为 Deprecated!
 * <p>
 * 演示 grant_type=implicit 时，获取资源的方法
 *
 * @param client_id
 * @param client_secret     取决于 AuthorizationServer 设置，如果 client 设置了secret，则此项参数为必需，否则可以没有
 * @param authorization_uri
 * @param access_token_uri
 * @param scope
 * @return
 */
@Deprecated
public OAuth2RestOperations implicitResourceRestTemplate(String client_id, String client_secret, String authorization_uri, String access_token_uri, String... scope) {

    // 防止 url 写错
    if (!authorization_uri.contains("authorize"))
        throw new RuntimeException("uri is wrong :  authorization_uri" + authorization_uri);

    ImplicitResourceDetails details = new ImplicitResourceDetails();
    details.setId("2");
    details.setClientId(client_id);
    if (client_secret != null && !client_secret.isEmpty())
        details.setClientSecret(client_secret);
    details.setAccessTokenUri(authorization_uri);
    details.setClientAuthenticationScheme(AuthenticationScheme.header);
    details.setUseCurrentUri(true);
    details.setScope(Arrays.asList(scope));
    // return restTemplate;
    return new OAuth2RestTemplate(details, oAuth2ClientContext);
}
 

@Test
public void usingUserWithViewRoles() throws Exception {

	final ResourceOwnerPasswordResourceDetails resourceDetails = new ResourceOwnerPasswordResourceDetails();
	resourceDetails.setClientId("myclient");
	resourceDetails.setClientSecret("mysecret");
	resourceDetails.setUsername("bob");
	resourceDetails.setPassword("bobspassword");
	resourceDetails
			.setAccessTokenUri("http://localhost:" + oAuth2ServerResource.getOauth2ServerPort() + "/oauth/token");

	final OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(resourceDetails);
	final OAuth2AccessToken accessToken = oAuth2RestTemplate.getAccessToken();

	System.setProperty("accessTokenAsString", accessToken.getValue());

	context = new AnnotationConfigApplicationContext(TestApplication.class);

	final DataFlowOperations dataFlowOperations = context.getBean(DataFlowOperations.class);
	final AboutResource about = dataFlowOperations.aboutOperation().get();

	assertNotNull(about);
	assertEquals("bob", about.getSecurityInfo().getUsername());
	assertEquals(1, about.getSecurityInfo().getRoles().size());
}
 

@Override
public OAuth2RestTemplate getUserInfoRestTemplate() {
	if (this.oauth2RestTemplate == null) {
		this.oauth2RestTemplate = createOAuth2RestTemplate(
				this.details == null ? DEFAULT_RESOURCE_DETAILS : this.details);
		this.oauth2RestTemplate.getInterceptors().add(new AcceptJsonRequestInterceptor());
		AuthorizationCodeAccessTokenProvider accessTokenProvider = new AuthorizationCodeAccessTokenProvider();
		accessTokenProvider.setTokenRequestEnhancer(new AcceptJsonRequestEnhancer());
		this.oauth2RestTemplate.setAccessTokenProvider(accessTokenProvider);
		if (!CollectionUtils.isEmpty(this.customizers)) {
			AnnotationAwareOrderComparator.sort(this.customizers);
			for (UserInfoRestTemplateCustomizer customizer : this.customizers) {
				customizer.customize(this.oauth2RestTemplate);
			}
		}
	}
	return this.oauth2RestTemplate;
}
 

@Test
public void testAccessRootUrlWithOAuth2AccessToken() throws Exception {

	final ClientCredentialsResourceDetails resourceDetails = new ClientCredentialsResourceDetails();
	resourceDetails.setClientId("myclient");
	resourceDetails.setClientSecret("mysecret");
	resourceDetails.setGrantType("client_credentials");
	resourceDetails
			.setAccessTokenUri("http://localhost:" + oAuth2ServerResource.getOauth2ServerPort() + "/oauth/token");

	final OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(resourceDetails);
	final OAuth2AccessToken accessToken = oAuth2RestTemplate.getAccessToken();

	final String accessTokenAsString = accessToken.getValue();

	localDataflowResource.getMockMvc().perform(get("/").header("Authorization", "bearer " + accessTokenAsString))
			.andDo(print()).andExpect(status().isOk());
}
 

@Bean
    public OAuth2RestOperations oAuth2RestOperations() {

        ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
        resource.setAccessTokenUri(tokenUrl);
        resource.setId(resourceId);
        resource.setClientId(resourceClientId);
        resource.setClientSecret(resourceClientSecret);

        resource.setGrantType("password");

        resource.setScope(Arrays.asList("openid"));

        resource.setUsername("[email protected]");
        resource.setPassword("user1");

        OAuth2RestTemplate template = new OAuth2RestTemplate(resource);
//        template.setRequestFactory(requestFactory);
        return template;
    }
 

private OAuth2ClientAuthenticationProcessingFilter ssoFilter(ClientResources client, String path) {
	OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(client.getClient(), oauth2ClientContext);

	UserInfoTokenServices tokenServices = new UserInfoTokenServices(client.getResource().getUserInfoUri(),
			client.getClient().getClientId());
	tokenServices.setRestTemplate(oAuth2RestTemplate);

	OAuth2ClientAuthenticationProcessingFilter oAuth2ClientAuthenticationFilter =
			new OAuth2ClientAuthenticationProcessingFilter(path);
	oAuth2ClientAuthenticationFilter.setRestTemplate(oAuth2RestTemplate);
	oAuth2ClientAuthenticationFilter.setTokenServices(tokenServices);
	oAuth2ClientAuthenticationFilter.setAuthenticationSuccessHandler(new SimpleUrlAuthenticationSuccessHandler() {
		@Override
		public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
				Authentication authentication) throws IOException, ServletException {
			// TODO switch to tokens or find a way to return to last page on client
			this.setDefaultTargetUrl("/");
			super.onAuthenticationSuccess(request, response, authentication);
		}
	});

	return oAuth2ClientAuthenticationFilter;
}
 

@Test
public void testOAuthService() {	
       ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
       resource.setUsername("guest");
       resource.setPassword("guest123");
       resource.setAccessTokenUri("http://localhost:8080/oauth/token");
       resource.setClientId("trustedclient");
       resource.setClientSecret("trustedclient123");
       resource.setGrantType("password");
 
       DefaultOAuth2ClientContext clientContext = new DefaultOAuth2ClientContext();
       OAuth2RestTemplate restTemplate = new OAuth2RestTemplate(resource, clientContext);

       Greet greet = restTemplate.getForObject("http://localhost:8080", Greet.class);

       Assert.assertEquals("Hello World!", greet.getMessage());
}
 

/**
 * 演示 grant_type=password 时，获取资源的方法
 * 用的场景还不知道，@Deprecated
 *
 * @param client_id
 * @param client_secret    取决于 AuthorizationServer 设置，如果 client 设置了secret，则此项参数为必需，否则可以没有
 * @param access_token_uri
 * @param username
 * @param password
 * @param scope
 * @return
 */
@Deprecated
public OAuth2RestOperations resourceOwnerPasswordRestTemplate(String client_id, String client_secret, String access_token_uri, String username, String password, String... scope) {

    // 防止 url 写错
    if (!access_token_uri.contains("token"))
        throw new RuntimeException("uri is wrong :  access_token_uri = " + access_token_uri);

    // 防止 client_secret 写错
    if (username == null || password == null || username.isEmpty() || password.isEmpty())
        throw new RuntimeException("username or password  is wrong :  username or password is a required parameter");

    ResourceOwnerPasswordResourceDetails details = new ResourceOwnerPasswordResourceDetails();
    details.setId("3");
    details.setClientId(client_id);
    if (client_secret != null && !client_secret.isEmpty())
        details.setClientSecret(client_secret);
    details.setAccessTokenUri(access_token_uri);
    details.setUsername(username);
    details.setPassword(password);
    details.setScope(Arrays.asList(scope));
    return new OAuth2RestTemplate(details, oAuth2ClientContext);


}
 

public static Filter general(AuthorizationCodeResourceDetails client, ResourceServerProperties resourceServerProperties, String path, OAuth2ClientContext oauth2ClientContext) {
	OAuth2ClientAuthenticationProcessingFilter oAuth2ClientAuthenticationFilter = new OAuth2ClientAuthenticationProcessingFilter(path){
		protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response,
		                                        FilterChain chain, Authentication authResult) throws IOException, ServletException {
			super.successfulAuthentication(request, response, chain, authResult);
			OAuth2AccessToken accessToken = restTemplate.getAccessToken();
			log.warn(new Gson().toJson(authResult));
			log.warn(new Gson().toJson(accessToken));
		}
	};
	OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(client, oauth2ClientContext);
	oAuth2ClientAuthenticationFilter.setRestTemplate(oAuth2RestTemplate);
	UserInfoTokenServices tokenServices = new UserInfoTokenServices(resourceServerProperties.getUserInfoUri(), client.getClientId());
	tokenServices.setRestTemplate(oAuth2RestTemplate);
	oAuth2ClientAuthenticationFilter.setTokenServices(tokenServices);
	return oAuth2ClientAuthenticationFilter;
}
 

/**
 * 演示 grant_type=client_credentials 时，获取资源的方法
 *
 * @param client_id
 * @param client_secret    取决于 AuthorizationServer 设置，如果 client 设置了secret，则此项参数为必需，否则可以没有
 * @param access_token_uri
 * @param scope
 * @return
 */
public OAuth2RestOperations clientCredentialsRestTemplate(String client_id, String client_secret, String access_token_uri, String... scope) {

    // 防止 url 写错
    if (!access_token_uri.contains("token"))
        throw new RuntimeException("uri is wrong :  access_token_uri = " + access_token_uri);

    ClientCredentialsResourceDetails details = new ClientCredentialsResourceDetails();
    details.setId("4");
    details.setClientId(client_id);
    if (client_secret != null && !client_secret.isEmpty())
        details.setClientSecret(client_secret);
    details.setAccessTokenUri(access_token_uri);
    details.setScope(Arrays.asList(scope));
    return new OAuth2RestTemplate(details, oAuth2ClientContext);
}
 

@Test
public void givenOAuth2Context_whenAccessTokenIsRequestedByClientWithWriteScope_ThenAccessTokenIsNotNull() {
    ClientCredentialsResourceDetails resourceDetails = getClientCredentialsResourceDetails("baeldung-admin", singletonList("write"));
    OAuth2RestTemplate restTemplate = getOAuth2RestTemplate(resourceDetails);

    OAuth2AccessToken accessToken = restTemplate.getAccessToken();

    assertNotNull(accessToken);
}
 

/**
 * 构建网关Oauth2 password方式请求
 *
 * @param clientId
 * @param clientSecret
 * @param accessTokenUri
 * @param username
 * @param password
 * @return
 */
public OAuth2RestTemplate buildOAuth2PasswordRequest(String clientId, String clientSecret, String accessTokenUri, String username, String password) {
    ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
    resource.setUsername(username);
    resource.setPassword(password);
    resource.setClientId(clientId);
    resource.setClientSecret(clientSecret);
    resource.setAccessTokenUri(accessTokenUri);
    resource.setAuthenticationScheme(AuthenticationScheme.form);
    resource.setGrantType("password");
    OAuth2RestTemplate restTemplate = new OAuth2RestTemplate(resource);
    return restTemplate;
}
 

private OAuth2RestTemplate getOAuthTemplate() {
	ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
	resource.setUsername("user2");
	resource.setPassword("user2-password");
	resource.setAccessTokenUri(createUrl("/oauth/token"));
	resource.setClientId("YourClientID");
	resource.setClientSecret("TopSecretClientPassword");
	resource.setGrantType("password");
	OAuth2RestTemplate oauthTemplate = new OAuth2RestTemplate(resource, new DefaultOAuth2ClientContext());
	return oauthTemplate;
}
 

/**
 * 登录
 *
 * @param username
 * @param password
 * @return
 */
public OAuth2AccessToken login(String username, String password) {
	ResourceOwnerPasswordResourceDetails details = new ResourceOwnerPasswordResourceDetails();
	details.setUsername(username);
	details.setPassword(password);
	details.setAccessTokenUri(this.properties.getAccessTokenUri());
	details.setClientId(this.properties.getClientId());
	details.setClientSecret(this.properties.getClientSecret());
	OAuth2RestTemplate auth2RestTemplate = new OAuth2RestTemplate(details);
	auth2RestTemplate.setAccessTokenProvider(new ResourceOwnerPasswordAccessTokenProvider());
	return auth2RestTemplate.getAccessToken();
}
 

/**
 * openId登录
 *
 * @param openId   openid
 * @param provider 供应商
 * @return
 */
public OAuth2AccessToken loginByOpenId(String openId, String provider) {
	OpenIdResourceDetails details = new OpenIdResourceDetails();
	details.setOpenId(openId);
	details.setProvider(provider);
	details.setAccessTokenUri(this.properties.getAccessTokenUri());
	details.setClientId(this.properties.getClientId());
	details.setClientSecret(this.properties.getClientSecret());
	OAuth2RestTemplate auth2RestTemplate = new OAuth2RestTemplate(details);
	auth2RestTemplate.setAccessTokenProvider(new OpenIdAccessTokenProvider());
	return auth2RestTemplate.getAccessToken();
}
 

/**
 * 短信登录
 *
 * @param phoneNumber 手机号码
 * @param credential  验证码
 * @return
 */
public OAuth2AccessToken loginBySms(String phoneNumber, String credential) {
	SmsResourceDetails details = new SmsResourceDetails();
	details.setPhoneNumber(phoneNumber);
	details.setCredential(credential);
	details.setAccessTokenUri(this.properties.getAccessTokenUri());
	details.setClientId(this.properties.getClientId());
	details.setClientSecret(this.properties.getClientSecret());
	OAuth2RestTemplate auth2RestTemplate = new OAuth2RestTemplate(details);
	auth2RestTemplate.setAccessTokenProvider(new SmsAccessTokenProvider());
	return auth2RestTemplate.getAccessToken();
}
 

@Bean
public UserInfoRestTemplateCustomizer retryLoadBalancedUserInfoRestTemplateCustomizer(
		final RetryLoadBalancerInterceptor loadBalancerInterceptor) {
	return new UserInfoRestTemplateCustomizer() {
		@Override
		public void customize(OAuth2RestTemplate restTemplate) {
			List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>(
					restTemplate.getInterceptors());
			interceptors.add(loadBalancerInterceptor);
			restTemplate.setInterceptors(interceptors);
		}
	};
}
 

@Autowired
public VaultTokenRenewalAutoConfiguration(
		ConfigClientOAuth2ResourceDetails configClientOAuth2ResourceDetails,
		ConfigClientProperties configClientProps,
		@Value("${spring.cloud.config.token}") String vaultToken,
		@Value("${vault.token.ttl:300000}") long renewTTL) { // <-- Default to a 300 second (5 minute) TTL
	this.rest = new OAuth2RestTemplate(configClientOAuth2ResourceDetails);
	this.refreshUri = configClientProps.getUri()[0] + "/vault/v1/auth/token/renew-self";
	long renewTTLInMS = renewTTL / 1000; // convert to seconds, since that's what Vault wants
	this.request = buildTokenRenewRequest(vaultToken, renewTTLInMS);
	this.obscuredToken = vaultToken.substring(0, 4) + "[*]" + vaultToken.substring(vaultToken.length() - 4);
	this.renewTTL = renewTTL;
}
 

@Override
public void execute(final String jobName, final String jobGroup) {

    // 1. 获取数据库执行的job任务
    JobInfoMapper jobInfoMapper = ShopSpringContext.getBean(JobInfoMapper.class);
    JobInfo jobInfo = new JobInfo();
    jobInfo.setJobName(jobName);
    jobInfo.setJobStatus(JobStatusEnums.NORMAL.getCode());
    JobInfo selectJobInfo = jobInfoMapper.selectOne(new QueryWrapper<>(jobInfo));
    // 访问的资源请求地址
    if (Objects.nonNull(selectJobInfo)) {
        Map<String, String> paramMap = new ConcurrentHashMap<>();
        String url = "http://" + selectJobInfo.getServiceName() + selectJobInfo.getServiceMethod();
        if (!StringUtils.isEmpty(selectJobInfo.getParams())) {
            paramMap.putAll(JSON.parseObject(selectJobInfo.getParams(), Map.class));
        }
        OAuth2RestTemplate template = ShopSpringContext.getBean(OAuth2RestTemplate.class);
        // 得到服务鉴权访问token
        OAuth2AccessToken accessToken = template.getAccessToken();
        // 设置请求消息头
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
        headers.setBearerAuth(accessToken.toString());
        // 得到 RestTemplate 访问的负载均衡对象
        RestTemplate restTemplate = ShopSpringContext.getBean("restTemplate", RestTemplate.class);
        ResponseEntity<Object> responseEntity = restTemplate.postForEntity(url, new HttpEntity<>(paramMap, headers), Object.class);
        log.info("执行服务调用结束，返回结果 result = {}", JSON.toJSONString(responseEntity));
    } else {
        log.error("未找到执行的定时任务 jobName = {}, jobGroup = {}", jobName, jobGroup);
    }
}
 

@Test
public void withRestTemplate() {
	OAuth2ProtectedResourceDetails resource = new AuthorizationCodeResourceDetails();
	OAuth2ClientContext context = new DefaultOAuth2ClientContext();
	DefaultOAuth2AccessToken token = new DefaultOAuth2AccessToken("FOO");
	token.setRefreshToken(new DefaultExpiringOAuth2RefreshToken("BAR", new Date(0L)));
	context.setAccessToken(token);
	this.services.setRestTemplate(new OAuth2RestTemplate(resource, context));
	assertThat(this.services.loadAuthentication("FOO").getName()).isEqualTo("me");
	assertThat(context.getAccessToken().getValue()).isEqualTo("FOO");
	// The refresh token is still intact
	assertThat(context.getAccessToken().getRefreshToken()).isEqualTo(token.getRefreshToken());
}
 

@Bean
public OAuth2RestTemplate restTemplate(OAuth2ClientContext context) {
    OAuth2RestTemplate rest = new OAuth2RestTemplate(resourceDetails(), context);
    rest.setAccessTokenProvider(
        new AccessTokenProviderChain(
            Arrays.asList(new AuthorizationCodeAccessTokenProvider())));
    return rest;
}
 

@Bean
public OAuth2RestTemplate restTemplate(OAuth2ClientContext context) {
    OAuth2RestTemplate rest = new OAuth2RestTemplate(resourceDetails(), context);
    AccessTokenProviderChain providerChain = new AccessTokenProviderChain(
            Arrays.asList(new AuthorizationCodeAccessTokenProvider()));
    rest.setAccessTokenProvider(providerChain);
    return rest;
}
 

@Test
public void testAccessSecurityInfoUrlWithOAuth2AccessTokenPasswordGrant2Times() throws Exception {

	final ResourceOwnerPasswordResourceDetails resourceDetails = new ResourceOwnerPasswordResourceDetails();
	resourceDetails.setClientId("myclient");
	resourceDetails.setClientSecret("mysecret");
	resourceDetails.setUsername("user");
	resourceDetails.setPassword("secret10");
	resourceDetails
			.setAccessTokenUri("http://localhost:" + oAuth2ServerResource.getOauth2ServerPort() + "/oauth/token");

	final OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(resourceDetails);
	final OAuth2AccessToken accessToken = oAuth2RestTemplate.getAccessToken();

	final String accessTokenAsString = accessToken.getValue();

	localDataflowResource.getMockMvc()
			.perform(get("/security/info").header("Authorization", "bearer " + accessTokenAsString)).andDo(print())
			.andExpect(status().isOk())
			.andExpect(jsonPath("$.authenticated", is(Boolean.TRUE)))
			.andExpect(jsonPath("$.authenticationEnabled", is(Boolean.TRUE)))
			.andExpect(jsonPath("$.roles", hasSize(7)));

	localDataflowResource.getMockMvc()
			.perform(get("/security/info").header("Authorization", "bearer " + accessTokenAsString)).andDo(print())
			.andExpect(status().isOk())
			.andExpect(jsonPath("$.authenticated", is(Boolean.TRUE)))
			.andExpect(jsonPath("$.authenticationEnabled", is(Boolean.TRUE)))
			.andExpect(jsonPath("$.roles", hasSize(7)));
}
 

public OAuth2AccessToken load(TokenRequestDto requestDto) {
    OAuth2RestTemplate restTemplate = new OAuth2RestTemplate(resource);
    restTemplate.setAccessTokenProvider(tokenProvider);
    if (requestDto.getCode() != null) {
        AccessTokenRequest tokenRequest = restTemplate.getOAuth2ClientContext().getAccessTokenRequest();
        tokenRequest.setCurrentUri(requestDto.getRedirectUri());
        tokenRequest.setAuthorizationCode(requestDto.getCode());
    }
    try {
        return restTemplate.getAccessToken();
    } catch (OAuth2Exception e) {
        throw new BadCredentialsException("Could not obtain access token", e);
    }
}
 

@Test
public void givenOAuth2Context_whenAccessTokenIsRequested_ThenAccessTokenValueIsNotNull() {
    ClientCredentialsResourceDetails resourceDetails = getClientCredentialsResourceDetails("baeldung", singletonList("read"));
    OAuth2RestTemplate restTemplate = getOAuth2RestTemplate(resourceDetails);

    OAuth2AccessToken accessToken = restTemplate.getAccessToken();

    assertNotNull(accessToken);
}
 

@Autowired
public OrderServiceV1(OrderRepository orderRepository,
                      OrderEventRepository orderEventRepository,
                      @LoadBalanced OAuth2RestTemplate oAuth2RestTemplate) {
    this.orderRepository = orderRepository;
    this.orderEventRepository = orderEventRepository;
    this.oAuth2RestTemplate = oAuth2RestTemplate;
}