如何重写Spring框架bean?

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问题描述

我想自定义Spring Security提供的OAuth授权服务器的一些代码.负责生成/oauth/authorize的代码是一个名为AuthorizationEndpoint的bean.在AuthorizationServerEndpointsConfiguration类中，以下代码创建AuthorizationEndpoint类的bean:

I want to customize some of the codes of OAuth authorization server provided by spring security. the code responsible for generating /oauth/authorize is a bean named AuthorizationEndpoint. in AuthorizationServerEndpointsConfiguration class the following code creates a bean of AuthorizationEndpoint class:

@Bean
public AuthorizationEndpoint authorizationEndpoint() throws Exception {
    AuthorizationEndpoint authorizationEndpoint = new AuthorizationEndpoint();
    FrameworkEndpointHandlerMapping mapping = getEndpointsConfigurer().getFrameworkEndpointHandlerMapping();
    authorizationEndpoint.setUserApprovalPage(extractPath(mapping, "/oauth/confirm_access"));
    authorizationEndpoint.setProviderExceptionHandler(exceptionTranslator());
    authorizationEndpoint.setErrorPage(extractPath(mapping, "/oauth/error"));
    authorizationEndpoint.setTokenGranter(tokenGranter());
    authorizationEndpoint.setClientDetailsService(clientDetailsService);
    authorizationEndpoint.setAuthorizationCodeServices(authorizationCodeServices());
    authorizationEndpoint.setOAuth2RequestFactory(oauth2RequestFactory());
    authorizationEndpoint.setOAuth2RequestValidator(oauth2RequestValidator());
    authorizationEndpoint.setUserApprovalHandler(userApprovalHandler());
    return authorizationEndpoint;
}

我想用新的自定义bean覆盖它.我创建了一个扩展AuthorizationEndpoint的类.现在，我已经将相同的代码粘贴到了这个新类中.

I want to override it by a new custom bean. I have created a class which extends AuthorizationEndpoint. for now I have pasted the same code inside this new class.

public class AuthorizationEndpointCustom extends AuthorizationEndpoint {

创建bean:

    @Autowired
    private ClientDetailsService clientDetailsService;

    @Autowired
    AuthorizationServerEndpointsConfiguration asec;


    @Bean
//  @Order(value = Ordered.LOWEST_PRECEDENCE)
    @Primary
    public AuthorizationEndpoint authorizationEndpoint () {

        AuthorizationEndpointCustom authorizationEndpoint = new AuthorizationEndpointCustom();
        FrameworkEndpointHandlerMapping mapping = asec.getEndpointsConfigurer().getFrameworkEndpointHandlerMapping();
        authorizationEndpoint.setUserApprovalPage(extractPath(mapping, "/oauth/confirm_access"));
        authorizationEndpoint.setProviderExceptionHandler(asec.getEndpointsConfigurer().getExceptionTranslator());
        authorizationEndpoint.setErrorPage(extractPath(mapping, "/oauth/error"));
        authorizationEndpoint.setTokenGranter(asec.getEndpointsConfigurer().getTokenGranter());
        authorizationEndpoint.setClientDetailsService(clientDetailsService);
        authorizationEndpoint.setAuthorizationCodeServices(asec.getEndpointsConfigurer().getAuthorizationCodeServices());
        authorizationEndpoint.setOAuth2RequestFactory(asec.getEndpointsConfigurer().getOAuth2RequestFactory());
        authorizationEndpoint.setOAuth2RequestValidator(asec.getEndpointsConfigurer().getOAuth2RequestValidator());
        authorizationEndpoint.setUserApprovalHandler(asec.getEndpointsConfigurer().getUserApprovalHandler());

        return authorizationEndpoint;
    }

    private String extractPath(FrameworkEndpointHandlerMapping mapping, String page) {
        String path = mapping.getPath(page);
        if (path.contains(":")) {
            return path;
        }
        return "forward:" + path;
    }

当我尝试创建这个新类的bean时，遇到以下错误:

when I try to create a bean of this new class I encounter the following error:

说明:

bean的"authorizationEndpoint"，在 org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration，无法注册.那个名字的豆子已经被在类路径资源中定义 [com/example/demo/AuthorizationServerConfig.class]和覆盖是禁用.

The bean 'authorizationEndpoint', defined in org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration, could not be registered. A bean with that name has already been defined in class path resource [com/example/demo/AuthorizationServerConfig.class] and overriding is disabled.

动作:

考虑重命名其中一个bean或通过设置启用覆盖 spring.main.allow-bean-definition-overriding = true

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

通过将建议的配置添加到application.properties可以消除错误.但是新bean不会替代框架bean.在代码的另一部分中，我从applicationContext访问了AuthorizationEndpoint.我调用了该对象的.getClass()，它与框架中的bean是相同的:

the error goes away by adding the suggested config to application.properties. but the new bean does not replace the framework bean. in another part of my code I accessed the AuthorizationEndpoint from applicationContext. I called the .getClass() of this object and it is the same bean from the framework:

如何强制spring使用我的bean?

how can I force spring to use my bean?

Bean

如何重写Spring框架bean?

问题描述

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