application.properties中配置${user.id}怎么设置值

可以通过在Spring Security中获取当前用户的ID，并将其存储在Spring的全局变量中，然后在application.properties中引用该变量来设置${user.id}的值。

以下是一个示例：

1. 创建一个Spring Security配置类：

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    
    // ...
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // ...
    }
    
    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        // ...
    }
    
    @Bean
    public RequestContextListener requestContextListener() {
        return new RequestContextListener();
    }
    
    @Bean
    public ServletContextInitializer servletContextInitializer() {
        return servletContext -> servletContext.addListener(requestContextListener());
    }
    
    @Bean
    public CurrentUserHandlerMethodArgumentResolver currentUserHandlerMethodArgumentResolver() {
        return new CurrentUserHandlerMethodArgumentResolver();
    }
    
    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers) {
        argumentResolvers.add(currentUserHandlerMethodArgumentResolver());
    }
}

2. 创建一个用于存储当前用户的全局变量：

public class CurrentUser {
    
    private static final ThreadLocal<Long> threadLocal = new ThreadLocal<>();
    
    public static void set(Long userId) {
        threadLocal.set(userId);
    }
    
    public static Long get() {
        return threadLocal.get();
    }
    
    public static void remove() {
        threadLocal.remove();
    }
}

3. 创建一个用于获取当前用户ID并将其存储在全局变量中的解析器：

public class CurrentUserHandlerMethodArgumentResolver implements HandlerMethodArgumentResolver {
    
    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.getParameterType().equals(Long.class) && parameter.hasParameterAnnotation(CurrentUserId.class);
    }
    
    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        return CurrentUser.get();
    }
    
    @EventListener
    public void handleAuthenticationSuccessEvent(AuthenticationSuccessEvent event) {
        CurrentUser.set(event.getUser().getId());
    }
    
    @EventListener
    public void handleLogoutSuccessEvent(LogoutSuccessEvent event) {
        CurrentUser.remove();
    }
}

4. 在application.properties中引用${user.id}：

my.queue=user.queue.${currentUser}

这里使用了一个名为“currentUser”的变量，它的值是通过CurrentUserHandlerMethodArgumentResolver获取的当前用户ID。要使用该变量，也需要在MyMessageListener中添加一个参数：

@Component
public class MyMessageListener {
    
    @RabbitListener(queues = "${my.queue}")
    public void handleMessage(String message, @Value("${currentUser}") Long userId) {
        System.out.println("Received message: " + message + " for user " + userId);
    }
}

这样，你就可以通过${user.id}设置当前用户的队列名称，并在MyMessageListener中获取当前用户的ID。