我需要基于Java实现
时间: 2024-03-12 12:44:31 浏览: 75
好的,以下是一个基于Java的实现示例:
1. 首先需要添加以下依赖到你的项目中:
```xml
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
<version>2.3.7.RELEASE</version>
</dependency>
```
2. 在你的Spring Boot应用程序中,创建一个OAuth2客户端配置类,用于配置OAuth2客户端的基本信息,例如客户端ID、密钥、授权服务器地址等等。下面是一个示例:
```java
@Configuration
@EnableOAuth2Client
public class OAuth2ClientConfiguration {
@Value("${oauth2.client.client-id}")
private String clientId;
@Value("${oauth2.client.client-secret}")
private String clientSecret;
@Value("${oauth2.client.access-token-uri}")
private String accessTokenUri;
@Value("${oauth2.client.user-authorization-uri}")
private String userAuthorizationUri;
@Value("${oauth2.client.redirect-uri}")
private String redirectUri;
@Bean
public OAuth2ProtectedResourceDetails oauth2ProtectedResourceDetails() {
ClientCredentialsResourceDetails resourceDetails = new ClientCredentialsResourceDetails();
resourceDetails.setClientId(clientId);
resourceDetails.setClientSecret(clientSecret);
resourceDetails.setAccessTokenUri(accessTokenUri);
resourceDetails.setUserAuthorizationUri(userAuthorizationUri);
resourceDetails.setScope(Arrays.asList("read", "write"));
return resourceDetails;
}
@Bean
public OAuth2RestTemplate oauth2RestTemplate(OAuth2ClientContext oauth2ClientContext) {
return new OAuth2RestTemplate(oauth2ProtectedResourceDetails(), oauth2ClientContext);
}
@Bean
public OAuth2ClientContext oauth2ClientContext() {
return new DefaultOAuth2ClientContext(new DefaultAccessTokenRequest());
}
@Bean
public FilterRegistrationBean oauth2ClientFilterRegistration(OAuth2ClientContextFilter filter) {
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setFilter(filter);
registration.setOrder(-100);
return registration;
}
@Bean
public AuthorizationCodeResourceDetails authorizationCodeResourceDetails() {
AuthorizationCodeResourceDetails resourceDetails = new AuthorizationCodeResourceDetails();
resourceDetails.setClientId(clientId);
resourceDetails.setClientSecret(clientSecret);
resourceDetails.setAccessTokenUri(accessTokenUri);
resourceDetails.setUserAuthorizationUri(userAuthorizationUri);
resourceDetails.setScope(Arrays.asList("read", "write"));
resourceDetails.setPreEstablishedRedirectUri(redirectUri);
resourceDetails.setUseCurrentUri(false);
return resourceDetails;
}
@Bean
public OAuth2RestTemplate oauth2RestTemplate(AuthorizationCodeResourceDetails resourceDetails, OAuth2ClientContext oauth2ClientContext) {
return new OAuth2RestTemplate(resourceDetails, oauth2ClientContext);
}
}
```
在上面的配置类中,我们配置了一个OAuth2客户端,它使用密码模式进行授权。我们使用了`ClientCredentialsResourceDetails`类,它提供了客户端ID、密钥、授权服务器地址等基本信息。我们还使用了`OAuth2RestTemplate`类,它用于向授权服务器发送请求,并获取访问令牌。
3. 然后,我们需要创建一个控制器类,用于处理用户登录和访问受保护的资源。下面是一个示例:
```java
@RestController
public class UserController {
@Autowired
private OAuth2RestTemplate restTemplate;
@GetMapping("/login")
public String login() {
return "Please log in";
}
@PostMapping("/login")
public String login(@RequestParam String username, @RequestParam String password, HttpServletRequest request) {
// 使用密码模式进行授权
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
MultiValueMap<String, String> map = new LinkedMultiValueMap<>();
map.add("grant_type", "password");
map.add("client_id", "myClientId");
map.add("client_secret", "myClientSecret");
map.add("username", username);
map.add("password", password);
HttpEntity<MultiValueMap<String, String>> entity = new HttpEntity<>(map, headers);
ResponseEntity<Map> response = restTemplate.postForEntity("/oauth/token", entity, Map.class);
if (response.getStatusCode() == HttpStatus.OK) {
// 将访问令牌存储在会话中
request.getSession().setAttribute("access_token", response.getBody().get("access_token"));
return "Logged in successfully";
} else {
return "Invalid username or password";
}
}
@GetMapping("/dashboard")
public String dashboard(HttpServletRequest request) {
// 检查访问令牌是否存在
String accessToken = (String) request.getSession().getAttribute("access_token");
if (accessToken == null) {
return "Please log in";
} else {
// 向受保护的资源发送请求
HttpHeaders headers = new HttpHeaders();
headers.setBearerAuth(accessToken);
HttpEntity<String> entity = new HttpEntity<>(headers);
ResponseEntity<Map> response = restTemplate.exchange("/api/resource", HttpMethod.GET, entity, Map.class);
if (response.getStatusCode() == HttpStatus.OK) {
return "Hello, " + response.getBody().get("username") + "!";
} else {
return "Unauthorized";
}
}
}
}
```
在上面的控制器类中,我们处理了登录请求和访问受保护的资源请求。我们使用了`OAuth2RestTemplate`类向授权服务器发送请求,并获取访问令牌。在登录请求中,我们向授权服务器发送了用户名和密码,以获取访问令牌。如果访问令牌有效,则将其存储在会话中。在访问受保护的资源请求中,我们检查访问令牌是否存在,并向受保护的资源发送请求。
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